USCG USCG General Eng
Set 8 • Question #439 of 498
Launch Interactive Practice Room At high pressures, an O-ring has a tendency to extrude into the clearance space between the mating parts of a hydraulic actuator. Which of the listed components is used to prevent extrusion?
A
Double seal ring
B
Lathe cut ring
C
Backup ring
✓ Correct Answer
D
Static washer
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'At high pressures, an O-ring has a tendency to extrude into the clearance space between the mating parts of a hydraulic actuator. Which of the listed components is used to prevent extrusion', the standard operating requirement is: 'Backup ring'.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...