单选题The purpose of an oil mist detector in a main propulsion diesel engine is to warn of （）Aexcessive mist density in the crankcasesBexcessively high crankcase vacuumCexcessively high bearing temperatureDexcessive carbon buildup in the lube oil
单选题
The purpose of an oil mist detector in a main propulsion diesel engine is to warn of （）
A
excessive mist density in the crankcases
B
excessively high crankcase vacuum
C
excessively high bearing temperature
D
excessive carbon buildup in the lube oil
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