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單項選擇題

The correct tightening is obtained by use of （） to measure the extension given to the bolts.

A.pressure gauges
B.stretch gauges
C.thermometers
D.bridge gauges

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單項選擇題

The cooling water temperature （） over a period of 8 hours, and then shut down.

A.should be gradually increased
B.should be gradually reduced
C.should be constantly kept
D.should be varied up and down

單項選擇題

The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.

A.dividing walls
B.divided walls
C.dividing liners
D.divided jackets

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