USCG USCG General Eng
Set 16 • Question #226 of 498
Launch Interactive Practice Room Which of the listed reasons could cause frost to form on the suction line of a refrigeration compressor?
A
Shortage of refrigerant in the system.
B
Expansion valve is stuck open.
✓ Correct Answer
C
Liquid line service valve is closed.
D
Condenser cooling water temperature is too high.
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'Which of the listed reasons could cause frost to form on the suction line of a refrigeration compressor', the standard operating requirement is: 'Expansion valve is stuck open.'.
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