Motor Plants & Auxiliary Boilers USCG Question #466 (Set 11)

The device shown in the illustration can be automatically or manually desludged. The closing sequence at the end of the desludging cycle is initiated by opening which of the labeled components listed below? Illustration MO-0012

USCG Exam Illustration MO-0012
USCG Examination Diagram: Illustration MO-0012
Official USCG Answer & Rule Citation

Correct Answer: Option C — Q

In self-cleaning disc-stack centrifuges, operating water is directed via solenoid valves like component Q to actuate the sliding piston, sealing the bowl discharge ports and completing the closing sequence after a desludging event.

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