7,589 questions · 7 modules
Engine - USCG Exam Questions
The Engine pool holds the current U.S. Coast Guard questions for engineering credentials, from QMED ratings through DDE and Assistant Engineer up to Chief. Answer any question to see the correct choice instantly.
Modules
General Subjects
General engineering knowledge: watchkeeping, pumps and piping systems, hydraulics, instrumentation, and shipboard maintenance.
1,465 questions · Open the module →
Electricity
Marine electrical systems: motors and generators, switchboards and distribution, batteries, electronics, and control engineering.
1,595 questions · Open the module →
Steam Plants
Boilers, steam turbines, condensate and feed systems, and the operation and maintenance of steam propulsion plants.
1,029 questions · Open the module →
Motor Plants and Auxiliary Boilers
Diesel engine theory and operation, fuel and lubrication systems, starting and reversing, and auxiliary boilers.
1,433 questions · Open the module →
Engineering Safety
Engine room safety: firefighting and fire prevention, confined space entry, pollution regulations, and safe work practices.
1,109 questions · Open the module →
Refrigeration AC
Refrigeration cycles and components, compressors, refrigerants, and marine air conditioning systems.
623 questions · Open the module →
Gas Turbines
Gas turbine theory, construction, operation, and the support systems found in gas turbine propulsion plants.
335 questions · Open the module →
Retired question sets
Questions the Coast Guard has retired from the exam pool. Kept online for reference and extra practice; they are not used in practice exams.