What harmful condition can result if a diesel engine is operated at very light loads for long periods of time?（）<br>A:increased carbon buildup<br>B:burning of intake valves<br>C:excessive firing pressures<br>D:increased fuel consumption

What harmful condition can result if a diesel engine is operated at very light loads for long periods of time?（）
A:increased carbon buildup
B:burning of intake valves
C:excessive firing pressures
D:increased fuel consumption

出自：海船船员证

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