Engine Refrigeration (Supplementary) USCG Question #134 (Set 3)

What is the purpose of running a refrigeration compressor in short intermittent spurts or throttling the suction isolation valve when starting the system after a prolonged shutdown?

Official USCG Answer & Rule Citation

Correct Answer: Option A — prevent liquid slugging or overloading the compressor

Under USCG National Maritime Center examination standards, the accepted correct answer is: prevent liquid slugging or overloading the compressor.

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