Junior Engineer (NMC QMED01) is the broadest QMED rating — a superset of the others. It is examined in Q800 Part I and Q801 Part II, each 70 questions at a 70% pass mark, spanning motor and steam propulsion, full electrical theory, refrigeration and air conditioning, hydraulics, thermodynamics, and maintenance.
2
Modules — Q800 + Q801
70
Questions per module
70%
Passing score
3.5 h
Time per module
Junior Engineer is examined in Q800 Junior Engineer Part I and Q801 Junior Engineer Part II. Each module is 70 multiple-choice questions at a 70% pass mark, 3.5 hours long. In the engine-room exam room you may reference 46 CFR and 33 CFR only.
The subject set derives from the Junior Engineer column of Table 1 to 46 CFR 12.505(c). We drill each of these areas:
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Original questions calibrated to the NMC Junior Engineer exam format — every answer is cited to a public source. Answer a few right here.
We’re building the cited Junior Engineer question set. In the meantime, try five free questions from our live exam bank — the same drill workflow, citations on every answer.
Try the deck demo — 5 freeSea service (46 CFR 12.503)
6 months of service in a rating at least equal to Wiper or Coal Passer on the appropriate class of vessels (46 CFR 12.503). Graduates of an approved training ship qualify with no further service, and other approved training can substitute for up to half of the required service.
Fees (46 CFR 10.219)
$280 in Coast Guard fees — $95 evaluation + $140 exam + $45 issuance. You also need a USCG medical certificate (CG-719K), a drug test, and a TWIC (46 CFR 10.203).
See the full application flow and the other ratings on the QMED hub, or find where you test in the REC locations guide.
Motor and steam propulsion support, lube/fuel systems, pumps and valves, watch duties, and engine-room safety.
Practice OilerDC/AC theory, motors and generators, switchboards and distribution, batteries, troubleshooting, and refrigeration.
Practice Electrician/Refrigerating EngineerJunior Engineer covers the union of the other ratings' subjects — motor and steam propulsion, the full electrical set, refrigeration and air conditioning, hydraulics, and thermodynamics. Its two modules (Q800 and Q801) draw from the widest slice of the 46 CFR 12.505(c) subject matrix, so there is simply more ground to cover than for Oiler or a single-discipline rating.
Yes, by the increase-of-scope path: an applicant who has passed the modules for Electrician/Refrigerating Engineer plus Oiler plus Boiler Technician/Watertender can be issued Junior Engineer without testing, provided the other requirements are met (per the NMC Deck & Engineering Guide). Most candidates instead sit the QMED01 Q800/Q801 exam directly.
Each Junior Engineer module — Q800 and Q801 — is 70 questions with a 70% passing score and a three-and-a-half-hour time limit. CaptainsGround drills are original questions built to that format, each answer cited to a public source.
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