單項選擇題

The purpose of the flywheel of a diesel engine is to （）.

A.counterbalance the crank throws on the crankshaft
B.keep the engine running smoothly between power stroke
C.provide a belt-driving surface for the operation of auxiliary machinery
D.prevent the engine from overspeeding

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單項選擇題

The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowest What is the meaning of “its” in the sentence above?（）

A.the cross-head
B.the pumps
C.the shell
D.the load

單項選擇題

The pumps employed on board ship can be divided into two main categories ie（） pumps and centrifugal pumps.

A.gear
B.nonpositive displacement
C.positive displacement
D.rotary

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The purpose of the flywheel of a diesel engine is to （）.

你可能感興趣的試題

The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowest What is the meaning of “its” in the sentence above?（）

The pumps employed on board ship can be divided into two main categories ie（） pumps and centrifugal pumps.