Engine Safety (Supplementary) USCG Question #765 (Set 10)

The device shown in the illustration is classified as a/an __________. 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 crankcase mist detectors continuously sample atmosphere density from various engine trunk spaces, comparing optical clarity against a reference tube to identify early stages of overheated bearings and prevent explosions.

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