单项选择题
A.distillate B.seawater C.brine D.air
Which of the diesel engine components listed increase a...
单项选择题Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
A.Impeller B.Compressor C.After-cooler D.Exhaust differ
By comparing the exhaust gas temperature of each cylind...
单项选择题By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
A.tachometer B.pyrometer C.dynamometer D.calorimeter
To shut down a diesel engine after it exceeds the set m...
单项选择题To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
A.Speed limiting governor B.Over-speed governor C.Over-speed trip D.Over-speed relay
