Engine General (Supplementary) USCG Question #390 (Set 6)

Which of the listed pumps, shown in the illustration, discharges directly to the fuel oil settling tanks of a diesel engine main propulsion plant? Illustration MO-0058

USCG Exam Illustration MO-0058
USCG Examination Diagram: Illustration MO-0058
Official USCG Answer & Rule Citation

Correct Answer: Option B — Transfer pump

The fuel oil transfer pump is specifically designed to move fuel from storage tanks to the settling tanks. This process is a fundamental part of the fuel treatment system, allowing for gravity settling of water and sediment before the fuel is processed by the centrifugal purifiers.

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