Motor Plants & Auxiliary Boilers USCG Question #1494 (Set 31)

Which of the following statements describes what will occur if the annular spaces, indicated by the letter "K" of the device shown in the illustration, became restricted? Illustration MO-0112

USCG Exam Illustration MO-0112
USCG Examination Diagram: Illustration MO-0112
Official USCG Answer & Rule Citation

Correct Answer: Option A — The bowl will fail to close when starting and the unit will not shoot when operating.

Annular spaces marked "K" control operating water flow necessary to actuate the sliding bowl bottom. When restricted, operating water pressure cannot build up to close the bowl at start-up, nor can it supply the hydraulic force required to trip the discharge mechanism during operation.

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