Marine Electrical Systems USCG Question #63 (Set 3)

An electrical connection between the wiring of an electric motor and its metal frame is known as what?

Official USCG Answer & Rule Citation

Correct Answer: Option B — ground

An accidental electrical contact between live motor conductors and the metallic enclosure creates a ground fault, which must be detected and cleared per 46 CFR Subchapter J safety mandates.

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