單項(xiàng)選擇題

Proper dispersion of fuel in a diesel engine cylinder is dependent upon the （）

A.injection pressure
B.shape of combustion space
C.turbulence in combustion space
D.all of the above

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單項(xiàng)選擇題

A change in engine speed is required before a governor is able to make a corrective movement of fuel rackThis aspect of governing is commonly expressed as a percent and is known as （）

A.governor sensitivity
B.governor promptness
C.speed droop
D.isochronous governing

單項(xiàng)選擇題

Exhaust pyrometer readings provide an indication of the （）

A.effectiveness of water-cooled exhaust elbows
B.distribution of the load between engine cylinders
C.amount of fuel penetration into the engine cylinders
D.indicated horsepower of the engine cylinders