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
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The hydraulic （） is used to control engine speed.
A.motor
B.pump
C.governor
D.capstan -
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 -
单项选择题
The high pressure in fuel injection system of the diesel engine is produced by the （）.
A.injector pump
B.fuel injector
C.governor
D.turbocharger
