Knowledge test for engine officers
Engine officers are tested on main and auxiliary machinery, fuel, lubrication, cooling and ballast systems, pumps, electrical basics, maintenance and repair, MARPOL and the emergencies of the engine room, plus leadership and the conventions for senior ranks.
Sit the practice test for engine officers
If you are a Chief Engineer, Second, Third or Fourth Engineer, or an engine cadet, this is your paper: 30 multiple-choice questions drawn from 408 original questions relevant to your rank, 30 minutes, no feedback until the end, then a score by knowledge area with links to revise. All questions are ours; nothing comes from any real test.
Start the engine officers testIndependent practice. Not affiliated with any test provider; names of commercial tests appear only to explain what they are. Read our guide to the CES test for what to expect rank by rank.
What the test covers for engine officers
Weighted by the competence tables of STCW A-III/1 and A-III/2. "Core" areas give most of the questions; "basics" appear once or twice.
| Knowledge area | Weight | Share | Revise |
|---|---|---|---|
| Emergencies, fire and life-saving | core | 9% | Life-saving appliances and fire protection |
| Fuel, lubrication, ballast and pumps | core | 9% | |
| Leadership, teamwork and fatigue | core | 9% | |
| Main and auxiliary machinery | core | 9% | |
| Maintenance, tools and repair | core | 9% | |
| Occupational safety and permits | core | 9% | Ship safety signs |
| Pollution prevention (MARPOL) | core | 9% | |
| Communications, SMCP and GMDSS | important | 6% | VHF and Channel 16 |
| Conventions and regulations | important | 6% | STCW English requirements guide |
| Electrical, electronic and control systems | important | 6% | |
| Ship security (ISPS) | important | 6% | |
| Vessel types and their cargoes | important | 6% | English and safety by ship type |
| MLC: rest hours, contracts and welfare | basics | 3% | |
| Stability and seaworthiness | basics | 3% |
The questions are about principles and safe practice, not about one maker's engine: why a purifier separates, what a low lube oil pressure alarm means, when the oily water separator may discharge.
Sample questions for engine officers
Five questions of the kind you will meet, from the core areas. Think first, then open the answer.
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Emergencies, fire and life-saving The general emergency alarm signal is:
- Seven or more short blasts followed by one long blast
- One long blast
- Continuous ringing of the fire bell
- Three short blasts
Show the answer
Seven or more short blasts followed by one long blast. SOLAS III/6 and the LSA Code: the general alarm calls the crew to muster stations; the muster list says what it means for each person. Read more
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Fuel, lubrication, ballast and pumps The sea chest is:
- A locker for charts
- The fuel tank in the double bottom
- The box where the anchor is stowed
- The opening in the hull with a strainer through which sea water is taken for cooling and ballast
Show the answer
The opening in the hull with a strainer through which sea water is taken for cooling and ballast. High and low sea chests are used depending on draught and conditions; strainers must be cleaned regularly.
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Pollution prevention (MARPOL) Food waste may be discharged at sea (outside special areas):
- Never
- Only in port
- Not less than 12 nautical miles from land, or 3 miles if ground to pass a 25 mm screen
- Anywhere
Show the answer
Not less than 12 nautical miles from land, or 3 miles if ground to pass a 25 mm screen. MARPOL Annex V; in special areas only comminuted food waste beyond 12 miles.
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Emergencies, fire and life-saving To which class does a magnesium or sodium fire belong?
- Class C
- Class D (metals and light metal alloys)
- Class A
- Class B
Show the answer
Class D (metals and light metal alloys). See the card: Fire classes. Read more
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Emergencies, fire and life-saving How can you tell that a piece of fire equipment has passed its survey?
- By the sticker, inscription or stamped mark with the station name, the date and the expiry
- By an entry in the engine logbook
- By the maker’s seal on the valve
- By the class society’s sticker on the fire store door
Show the answer
By the sticker, inscription or stamped mark with the station name, the date and the expiry. See the card: Fire equipment surveys. Read more
How to prepare
- Revise the core areas first. Emergencies, fire and life-saving, Fuel, lubrication, ballast and pumps, Leadership, teamwork and fatigue, Main and auxiliary machinery, Maintenance, tools and repair, Occupational safety and permits, Pollution prevention (MARPOL).
- Sit the test more than once. Every sitting draws a new set; the areas that stay red are the ones to study.
- Do the English test too. Many employers require both an English score and a knowledge score: full practice test with listening, or the 20-question English check.
- Going to sea? Save the tests on your phone and practise without a connection.
Other rank groups
- Knowledge test for deck officers: Master, Chief Officer, 2nd and 3rd Officer
- Knowledge test for deck ratings: Bosun, AB, OS
- Knowledge test for engine ratings: Oiler, Motorman, Fitter, Wiper
- Knowledge test for electro-technical officers and ratings: ETO, electro-technical rating, electrician
- Knowledge test for catering: Chief Cook, Cook, Steward, Messman