Marine Electrical Systems USCG Question #1035 (Set 35)

Using the temperature correction factor for the winding insulation temperature graph shown in the illustration, what would be the correction factor and the corrected temperature to 40 degrees C for a motor with a insulation resistance of 4 megohms measured at 50 degrees C? EL-0046

USCG Exam Illustration EL-0046
USCG Examination Diagram: Illustration EL-0046
Official USCG Answer & Rule Citation

Correct Answer: Option A — The temperature correction factor is 2 and the corrected resistance is 8 megohms at 40 degrees C.

Under USCG National Maritime Center examination standards, the accepted correct answer is: The temperature correction factor is 2 and the corrected resistance is 8 megohms at 40 degrees C..

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