Master your marine engineer Certificate of Competency (CoC) Class IV written exams. Access 3,069 questions from 344 past papers across all 6 core subjects, featuring verified text solutions and community-contributed answers.
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Auxiliary boilers, feed systems, fresh water generators, air compressors, pumps, piping, steering gear, refrigeration, materials, and auxiliary systems.
2-stroke and 4-stroke marine diesel engines, fuel injection systems, turbochargers, scavenge fires, starting systems, indicator cards, and engine construction.
Workshop skills, maintenance and overhaul procedures, tools, troubleshooting, watchkeeping duties, inspections, and operational safety.
AC/DC generators, motors, starters, electrical distribution, high voltage, batteries, circuit protection, safety, and instrumentation.
Ship structure, stresses, watertight doors, dry-docking, hydrostatic stability, load lines, tanks, and damage control.
SOLAS, MARPOL Annexes I-VI, STCW, ISM/ISPS, LSA, firefighting appliances, enclosed space entry, and pollution prevention.
