General Subjects (Auxiliaries & Systems) USCG Question #1288 (Set 20)

Which of the following statements represents the two major functions provided by the item labeled "20" shown in the illustration? Illustration MO-0111

USCG Exam Illustration MO-0111
USCG Examination Diagram: Illustration MO-0111
Official USCG Answer & Rule Citation

Correct Answer: Option D — The pump supplies the motive fluid to the ejectors in addition to supplying the feed water to the distiller.

The pump labeled 20 serves a dual purpose in this system. It provides the necessary motive fluid pressure to operate the ejectors, which maintain the vacuum and remove brine, while simultaneously supplying the required feed water to the evaporator section for the distillation process to occur.

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