Refrigeration & Air Conditioning USCG Question #59 (Set 1)

If the combination moisture indicator and sight glass indicates an accumulation of moisture within the system, which of the listed procedures would be the most practical to follow?

Official USCG Answer & Rule Citation

Correct Answer: Option C — Close the king valve, pump down the system, isolate the drier, remove the desiccant core and replace with new drier cartridge.

Under USCG National Maritime Center examination standards, the accepted correct answer is: Close the king valve, pump down the system, isolate the drier, remove the desiccant core and replace with new drier cartridge..

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