USCG USCG Motor
Set 4 • Question #218 of 382
Launch Interactive Practice Room During the fuel injection period, fuel pressure must exceed cylinder gas pressure to_________.
A
ensure penetration and distribution of the fuel in the combustion chamber
✓ Correct Answer
B
ensure the needle valve is flushed clean during each injection
C
allow combustion gas blowback into the open needle valve
D
prevent reflected pressure waves when the needle valve closes
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'During the fuel injection period, fuel pressure must exceed cylinder gas pressure to', the correct operational principle is: 'ensure penetration and distribution of the fuel in the combustion chamber'.
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