Your engine has started overheating. What is one of the most common causes worth checking first, and why?

A. The engine oil colour, since oil colour alone reliably indicates overheating causes

B. The battery voltage, since batteries directly control engine temperature

C. The colour of the exhaust smoke, which is unrelated to cooling in any way

D. The raw water intake and impeller — a blocked intake strainer, an airlock, or a failed/worn impeller all stop or reduce the flow of cooling seawater through the engine, and this is one of the most frequent overheating causes on small-craft diesels

A. Nothing — a test lift can proceed immediately after repairs

B. The area within the grab's swing radius should be cleared of personnel before the lift

C. Testing should wait until cargo operations begin

D. Only the crane operator needs to be aware the lift is happening

A. Only the weather forecast for the next watch

B. The lunch schedule for the deck team

C. Who must remain clear of the exclusion zone while the lift takes place

D. The cargo manifest for the next port