单项选择题
A.wrist pin bushings B.compression rings C.cylinder liner seals D.cylinder liner sealing ring
A centrifuge will satisfactorily remove which of the fo...
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
Diesel engine ‘blow-by’ into the crankcase is caused by...
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
Heavy residual fuel oils are heated prior to centrifugi...
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
