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單項選擇題

Please draw out a 0l mm shim between the two halves of the bearing （） the clearance.

A.to reduce
B.to increase
C.and reduce
D.and increase

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單項選擇題

Please draw out a 01 mm （） between the two halves of the bearing to reduce the clearance.

A.shim
B.gasket
C.washer
D.packing

單項選擇題

Pistons of marine medium speed diesel engines may be made of （） in order to keep the weight down for balancing purpose at high speed.

A.lead
B.forged steel
C.alloy steel
D.aluminum alloy

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