Engine Safety (Supplementary) USCG Question #527 (Set 6)

In a diesel engine closed freshwater cooling system employing a radiator, proper water temperature can be obtained by __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — adjusting the radiator louvers

Under USCG National Maritime Center examination standards, the accepted correct answer is: adjusting the radiator louvers.

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