Marine Electrical Systems USCG Question #718 (Set 24)

As shown in figure A" of the illustrated motor nameplate, how much current could the motor safely draw on a continuous basis at sea level without overheating? EL-0171

USCG Exam Illustration EL-0171
USCG Examination Diagram: Illustration EL-0171
Official USCG Answer & Rule Citation

Correct Answer: Option D — 187 amps

Nameplate continuous current ratings incorporate service factors and ambient temperature allowances. At standard sea level conditions, multiplying the rated full-load current by the designated service factor yields the maximum safe continuous current draw without thermal degradation.

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