USCG USCG Motor
Set 7 • Question #312 of 382
Launch Interactive Practice Room The crankcase of many diesel engines are kept under a slight vacuum by the____________.
A
scavenging action of the piston
B
piston type vacuum pump taking suction off a differential manometer
C
gland exhausting manometer
D
crankcase exhaust fan
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'The crankcase of many diesel engines are kept under a slight vacuum by the', the correct operational principle is: 'crankcase exhaust fan'.
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