单项选择题
A.precautions B.rpm C.indicator cards D.B and C
The ignition of the fuel in diesel engine is caused by ...
单项选择题The ignition of the fuel in diesel engine is caused by the （） of compression of the air previously admitted into the cylinders.
A.vacuum pressure B.specific gravity C.heat D.viscosity
The hydraulic （） is used to control engine speed.A.moto...
单项选择题The hydraulic （） is used to control engine speed.
A.motor B.pump C.governor D.capstan
The hot expanding gas rotates the blades of the exhaust...
单项选择题The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.
A.the oil separator B.the fresh water generator C.the compressor D.fire pump
