Motor Plants & Auxiliary Boilers USCG Question #431 (Set 10)

The device shown in the illustration is classified as a/an __________. Illustration MO-0008

USCG Exam Illustration MO-0008
USCG Examination Diagram: Illustration MO-0008
Official USCG Answer & Rule Citation

Correct Answer: Option A — comparator type mist detector

Comparator-type oil mist detectors continuously sample crankcase atmospheres by comparing optical densities between clear reference tubes and chambers exposed to mist samples, providing early warning of overheated internal components.

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