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單項選擇題

After fitting back in place the gear wheels, dont forget （） them.

A.to grease
B.greasing
C.oiling
D.lubricating

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單項選擇題

After ensuring that the （） is correct the bearing clearance should be checked.

A.nap
B.gap
C.nip
D.deflection

單項選擇題

After "F.W.E" is given, the air system is shut down, the （） gear put in, all drains and indicator cocks opened, and the cooling water kept running.

A.steering
B.timing
C.turning
D.running