USCG USCG Motor
Set 2 • Question #156 of 382
Launch Interactive Practice Room Multiple concentric valve springs are often used with diesel engine valves to_____.
A
enable research and development of cam contour to be simplified
B
operate the valve gear where a larger force is normally required, but space limitations restrict the use of a single large spring
✓ Correct Answer
C
allow for easier valve replacement
D
enable a total smaller valve spring force to keep the valve tight on its seat
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Multiple concentric valve springs are often used with diesel engine valves to', the correct operational principle is: 'operate the valve gear where a larger force is normally required, but space limitations restrict the use of a single large spring'.
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