Motor Plants & Auxiliary Boilers USCG Question #168 (Set 4)

Heat damage to fuel injection nozzles can be prevented by avoiding __________.

Official USCG Answer & Rule Citation

Correct Answer: Option B — long periods of engine overload

Sustained high combustion temperatures during prolonged engine overloads transfer excessive thermal energy to fuel injection nozzles, causing tip coking, needle sticking, and thermal fatigue.

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