USCG USCG General Eng
Set 17 • Question #244 of 498
Launch Interactive Practice Room Most solenoid valves are actuated by __________.
A
a spring
B
an electromagnet
✓ Correct Answer
C
the force of gravity
D
refrigerant pressure
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'Most solenoid valves are actuated by', the standard operating requirement is: 'an electromagnet'.
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