Marine Electrical Systems USCG Question #1119 (Set 38)

An AC motor is started and produces 25 horsepower when running at rated speed and load. Neglecting power factor considerations, how much will the kW meter reading increase for the sole generator providing power?

Official USCG Answer & Rule Citation

Correct Answer: Option C — 18.65 kW

Active power on a generator is measured in kilowatts. Converting the motor's mechanical output of 25 horsepower to electrical power using the standard conversion factor of 0.746 kW per horsepower yields 18.65 kW, which represents the direct increase on the generator's kilowatt meter.

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