Engine Safety (Supplementary) USCG Question #470 (Set 6)

How is oil supplied to the device shown in the illustration? MO-0127

USCG Exam Illustration MO-0127
USCG Examination Diagram: Illustration MO-0127
Official USCG Answer & Rule Citation

Correct Answer: Option C — In this arrangement an independent pump is utilized.

Purifiers in this specific machinery arrangement lack an attached positive displacement gear pump, requiring an external, independent supply pump to deliver unpurified fuel or oil to the separation bowl at the correct operational pressure and flow rate.

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