单项选择题
Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.
A.internal crankshaft passages
B.immersion in oil
C.splash lubrication
D.injection lubrication
点击查看答案&解析
相关考题
-
单项选择题
What function is provided by the crankcase ventilation system on some diesel engines?（）
A.Increases the sludge forming tendency of lube oil
B.Prevents the accumulation of combustible gases
C.Improves lube oil cooling
D.Improves cold weather starting -
单项选择题
Increasing the valve clearance between a valve stem and rocker arm, will result in the valve （）
A.closing later
B.opening sooner
C.staying open for a shorter period of time
D.staying open for a longer period of time -
单项选择题
A diesel engine crankcase ventilation system （）
A.prevents spark generation
B.removes combustible gases
C.determines the level of combustible gases
D.provides inert gas generation in crankcase
