SAMSA Marine Engineer Officer Class 4 CoC Exam Practice Questions - SAMSA Marine Engineer Officer Class 4 CoC (Near-Coastal & Port Operations) Exam (South Africa) Exam

High jacket cooling water temperature in a marine diesel engine is most commonly caused by which of the following?

Excessive fresh water expansion tank level Fouled heat exchanger tubes or reduced sea water coolant flow Overfilling the engine crankcase lube oil Low ambient air temperature in the engine room

Correct Answer:

Fouled heat exchanger tubes or reduced sea water coolant flow

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