单项选择题
How dose water enter the crankcase of a diesel engine?（）
A.Through the crankcase exhauster
B.As water vapor contained in blow-by
C.Demulsifying lube oil passing through the main bearings
D.Condensation from vapor formed in the expansion tank
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相关考题
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单项选择题
Standby or emergency diesel generator day tanks should always be kept full to reduce the possibility of（）
A.sediment contamination
B.fuel filter clogging
C.moisture formation
D.inadequate transfer pump suction head -
单项选择题
If water is found in the crankcase of a diesel engine, the cause may be due to（）
A.a cracked cylinder head
B.a leaky cylinder head gasket
C.a cracked cylinder liner
D.any of the above -
单项选择题
Following an overhaul of a crosshead type diesel engine, the engine is jacked over with the turning gear as part of the pre-start procedure, which of the listed pre-start procedures should be carried out?（）
A.Ensure proper cylinder lube oil flow
B.Open all air space drain cocks
C.Open all indicator valves
D.all of the above
