What is the purpose of the pressure transducer as shown in the illustration? Illustration GS-RA-17 Illustration GS-RA-17: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option A — it senses compressor suction pressure and controls the quench valve

Modern marine screw and reciprocating compressor systems utilize suction pressure transducers to monitor low-side operating pressures continuously. This feedback signal accurately governs the electronic quench valve to regulate discharge temperatures via liquid injection.