USCG USCG Motor
Set 6 • Question #292 of 382
Launch Interactive Practice Room The crankcases of many diesel engines are kept under a slight vacuum to___________.
A
improve fuel economy
B
increase the air charge velocity
C
reduce the risk of explosion
✓ Correct Answer
D
all of the above
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'The crankcases of many diesel engines are kept under a slight vacuum to', the correct operational principle is: 'reduce the risk of explosion'.
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