Question 371Electricity & Electronics - Assistant Engineer

70% to pass

From the information given in the illustration, what would be the maximum output amperage available from the emergency generator if it operated with a power factor of 0.9? Illustration EL-0106

Diagram for USCG Electrical Assistant: From the information given in the illustration, what would be the maximum...
A541 amps
B669 amps
C937 amps
D1156 amps
AI Explanation

The correct answer is B) 669 amps. The reasoning is as follows: The question states that the emergency generator has a power factor of 0.9. With a power factor of 0.9 and the given rated output of 600 kW, the maximum output amperage can be calculated as 600 kW / (0.9 x 480 V) = 669 amps. This is the correct formula to determine the maximum output amperage given the power factor. The other answer choices are incorrect because they do not properly account for the 0.9 power factor in the calculation.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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