题目内容

In the suction stroke, the crankshaft is rotating clockwise and the piston is moving the( )cylinder.The inlet valve is( )and a fresh charge of air is being drawn or pushed into the cylinder by the turbocharger.

A. up; opened
B. down;opened
C. up;closed
D. down; closed

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In a four- stoke/cycle diesel engine, after the completion of the power stroke, the piston will move( )

A. up and draw in a fresh air charge
B. down to burn off fuel
C. down to compress the fuel air charge
D. up and force out the exhaust gases

The process of breaking up fuel oil into fine particles to ensure good combustion is called( )

A. settling
B. straining
C. pumping
D. atomization

The( )takes a suction from the double-bottom tanks and discharges it to the settling tanks.

A. fuel oil service pump
B. general service pump
C. sump pump
D. fuel oil transfer pump

( )high pressure pipe and injectors need to be closely matched to provide optimum fueinjection.

A. The fuel transfer pump
B. The fuel feed pump
C. The fuel injection pump
D. The fuel booster pump

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