Marine Electrical Systems USCG Question #761 (Set 26)

What type of DC motor is never connected to a belt driven load?

Official USCG Answer & Rule Citation

Correct Answer: Option D — series wound

Series wound motors can dangerously overspeed and destroy themselves if load is suddenly removed or reduced. Consequently, they must never be connected to belt-driven loads where a broken belt could cause a runaway condition, violating IEEE 45 safety protocols.

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