單項選擇題

Load control on a diesel engine is accomplished by （）.

A.regulating the speed of the turbocharger
B.rotating the fuel injector pump plunger
C.regulating the speed of the fuel oil transfer pump
D.changing engine timing

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單項選擇題

When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated （）.

A.clockwise, due to the bowl rotating clockwise
B.clockwise, due to the bowl rotating counterclockwise
C.counterclockwise, due to the bowl rotating clockwise
D.counterclockwise, due to the bowl rotating counterclockwise

單項選擇題

In diesel engines designed with a crosshead, the motion of the piston rod can be described as （）.

A.reciprocating at the piston pin, rotary at the crank pin
B.reciprocating at the crank pin, rotary at the piston pin
C.straight reciprocation
D.straight rotation