单项选择题
On most diesel engines, the governor controls the output speed by （）.
A.controlling the amount of fuel injected into the cylinders
B.varying the speed of the turbocharger
C.adjusting the compression ratio
D.changing the timing of the fuel injection camshaft
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相关考题
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单项选择题
Which of the following devices is common to both mechanical and hydraulic governors?（）
A.Direct linkage between the ball-head and fuel rack
B.A servomotor
C.A compensating device
D.Flyweights -
单项选择题
Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）
A.Stationary
B.Full floating
C.Semi-floating
D.Free rolling -
单项选择题
The longer the ignition delay period occurs in a diesel engine, the （）.
A.less fuel will enter the cylinder
B.lower will be cylinder compression temperatures
C.more complete will be fuel combustion
D.more rapid will be the rise in combustion pressure
