With a service gauge manifold set connected to a refrigerant compressor as shown in the illustration, which arrangement of the gauge manifold set valves and compressor Service Valves would allow for simultaneous reading of the compressor suction and discharge pressures? GS-RA-03 Illustration GS-RA-03: the U.S. Coast Guard has not released this illustration.
Official USCG Answer & Rule Citation
Correct Answer: Option B — Valves "2" and "5" both closed, along with valves "1" and "6" both cracked open off their back- seats.
Under USCG National Maritime Center examination standards, the accepted correct answer is: Valves "2" and "5" both closed, along with valves "1" and "6" both cracked open off their back- seats..
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