Engine General (Supplementary) USCG Question #1242 (Set 23)

In order to take suction on the lube oil drain tank cofferdam with the bilge pump shown in the illustration, how many suction side valves must be open? GS-0042

USCG Exam Illustration GS-0042
USCG Examination Diagram: Illustration GS-0042
Official USCG Answer & Rule Citation

Correct Answer: Option B — Two

Under USCG National Maritime Center examination standards, the accepted correct answer is: Two.

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