题目内容
（请给出正确答案）
Crankcase explosions in propulsion diesel engines result from ____.
A.the splashing of lubrication oil by the crankshaft
B.the dilution of crankcase oil with particles of combustion
C.broken fuel lines spraying oil on the crankcase
D.the ignition of unburned fuel and air in the crankcase
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更多“Crankcase explosions in propul…”相关的问题
第1题
A.low compression of the fuel pumps
B.incorrect timing of fuel pumps
C.the starting air valves stuck
D.air-locks in fuel oil pipeline
第2题
A.the exhaust temperature
B.the exhaust pressure
C.the governor
D.the fuel flow meter
第3题
A.remains the same
B.is reduced
C.is increased
D.is eliminated
第4题
A.control axial movement of the crankshaft
B.transmit engine thrust to the propeller shaft
C.absorb vibrations in the propeller shafting
D.prevent propeller thrust from being transmitted to the hull
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