单项选择题
A.Shape of the piston crowns B.Increasing the compression ratios C.Increasing the piston crowns D.Increasing the turbocharger gear ratio
What causes diesel fuel to be ignited in the cylinder o...
单项选择题What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
A.Spark plug B.Heat of compression C.Carburetor D.Glow plug
If a diesel engine fails to start，one of the likely cau...
单项选择题If a diesel engine fails to start，one of the likely causes is （）
A.low compression temperature B.low ambient air pressure C.high lube oil pump pressure D.high fuel oil booster pump pressure
Icreasing the exhaust valve tappet clearance of a diese...
单项选择题Icreasing the exhaust valve tappet clearance of a diesel engine will result in the exhaust valve opening （）
A.later and closing earlier B.later and closing later C.earlier and closing earlier D.earlier and closing later
