单项选择题
A.charge air receiver B.scavenging air belt C.turbine D.air cooler
On a four-stroke diesel engine, when the piston is driv...
单项选择题On a four-stroke diesel engine, when the piston is driven downwards by the expanding gas, it delivers power to the crankshaft through the （）.
A.thrust block B.sounding rod C.connecting rod D.push rod
On a diesel engine, fuel is delivered into the combusti...
单项选择题On a diesel engine, fuel is delivered into the combustion space by （）.
A.a cooling system B.a lubrication oil system C.an electric system D.an injection system
Oil will lubricate these parts （） effectively than wate...
单项选择题Oil will lubricate these parts （） effectively than water.
A.much B.more C.most D.less
