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100 Free Inland Vessel Operator Practice Questions
Start answering now—this free set requires no account or card and covers Certification,, Deck,, Engine plus other key exam domains.
Question 1 / 100
Engine Start, Fuel and Cooling Control · Engine Room and Emergency Response
Water ingested through the exhaust
The engine was cranked for about six twenty-second attempts with the raw water pump filling the exhaust while the engine did not fire. The exhaust elbow is only 150 mm above the waterline with a small waterlock. Turning the engine by hand now meets a hard stop before top dead centre on one cylinder.
An engine has ingested water through the exhaust after being cranked repeatedly without starting. What is the risk of continuing to crank?
Timed
Keep the queue moving
One tap to switch lanes, then tune the next set without backing out of practice.
Quick switch
Tune next set
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Customize
Tune next set
Adjust the lane, pressure, and run length only when you need it.
Mode
Difficulty
favor easier hits
Run length
Longer runs keep momentum up without forcing a full mock every time.
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