USCG USCG General Eng
Set 11 • Question #87 of 498
Launch Interactive Practice Room In application, which of the listed sealing devices is most similar to an O-ring?
A
V-ring
B
Cup seal
C
U-ring
D
Quad ring
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'In application, which of the listed sealing devices is most similar to an O-ring', the standard operating requirement is: 'Quad ring'.
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