Engine Refrigeration (Supplementary) USCG Question #435 (Set 7)

Which of the lettered components shown in the illustration indicates the high pressure cutout? GS-RA-12 Illustration GS-RA-12: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option D — X

Component X designates the high-pressure safety cutout switch, designed to stop the compressor motor automatically if discharge pressures exceed safe operating limits due to inadequate condenser cooling or fouled heat transfer surfaces.

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