單項(xiàng)選擇題

If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the （）

A.turbocharger will stall
B.density of the air charge will decrease
C.scavenge effect will increase
D.exhaust pressure will increase

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單項(xiàng)選擇題

The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by（）

A.the firing pressure in the cylinder
B.a metering helix inside the pump
C.varying the physical length of the plunger stroke
D.varying the clearance between the injector cam and the injector rocker arm

單項(xiàng)選擇題

Which of the following should always be checked prior to starting a diesel engine?（）

A.Air filters
B.Fuel oil strainers
C.Crank case oil level
D.Pyrometer readings

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If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the （）

你可能感興趣的試題

The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by（）

Which of the following should always be checked prior to starting a diesel engine?（）