Motor Plants & Auxiliary Boilers USCG Question #156 (Set 4)

How is the illustrated strainer element cleaned during engine operation? Illustration MO-0057

USCG Exam Illustration MO-0057
USCG Examination Diagram: Illustration MO-0057
Official USCG Answer & Rule Citation

Correct Answer: Option A — The T-handle is rotated.

Self-cleaning duplex or edge-type strainers feature internal blades or scraper elements operated by rotating the external T-handle, shearing accumulated particulate off the element surface during continuous engine operation.

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