Asst Eng UFIV Practice Questions - USCG Assistant Engineer Uninspected Fishing Industry Vessels (UFIV) Exam

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Many fishing vessels cool the main engine with a keel cooler instead of a raw-water heat exchanger because a keel cooler:

Circulates seawater directly through the engine jackets Keeps engine coolant in a closed loop and rejects heat through external piping in contact with the sea Removes the need for any coolant circulating pump Eliminates the need for corrosion inhibitor in the coolant

Correct Answer:

Keeps engine coolant in a closed loop and rejects heat through external piping in contact with the sea

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