单项选择题
A.bedplate or base B.sump or oil pan C.cylinder block D.frame
Black smoke exhausting from an operating diesel engine ...
单项选择题Black smoke exhausting from an operating diesel engine is an indication of poor combustion which may be caused by （）
A.water in the fuel B.insufficient fuel for combustion C.clogged air intake passages D.burning lubricating oil
Increasing the compression ratio of a diesel engine whi...
单项选择题Increasing the compression ratio of a diesel engine while maintaining the designed rate of fuel flow will result in （）
A.increased horsepower B.reduced efficiency C.increased heat loss D.lower cylinder pressures
An emergency diesel generator should automatically shut...
单项选择题An emergency diesel generator should automatically shut down in the event of （）
A.dangerous over-speeding B.a loss of lube oil pressure C.activation of the fixed CO2 system for the emergency generator space D.all of the above
