单项选择题

A smoking exhaust from an operating diesel engine could be caused by （）

A.low sulfur content in the fuel
B.a loose injector inlet connection
C.late fuel injection
D.high injection pressure

点击查看答案&解析

上一题目录下一题

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

单项选择题

A.Spark plug
B.Heat of compression
C.Carburetor
D.Glow plug

单项选择题

A.low compression temperature
B.low ambient air pressure
C.high lube oil pump pressure
D.high fuel oil booster pump pressure