单项选择题
In a diesel engine, blow-by is a result of combustion gases leaking into the crankcase past the （）
A.wrist pin bushings
B.compression rings
C.cylinder liner seals
D.cylinder liner sealing ring
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相关考题
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单项选择题
A centrifuge will satisfactorily remove which of the following contaminants from fuel oil?（）
A.Gasoline
B.Water
C.Lubricating oil
D.sulphur compounds -
单项选择题
Diesel engine ‘blow-by’ into the crankcase is caused by excessive ring（）
A.back clearance
B.side clearance
C.gap clearance
D.taper clearance -
单项选择题
Heavy residual fuel oils are heated prior to centrifuging to （）
A.reduce fuel weight
B.increase specific gravity
C.separate fuel from lube oil
D.reduce fuel viscosity
