單項(xiàng)選擇題After the engine is warned, we should() the turning gear before starting up the engine.

A.take in
B.put in
C.take out
D.put up


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1.單項(xiàng)選擇題After passing through the turbine the exhaust gas is conducted out into the().

A.intercooler
B.compressor
C.cylinder
D.open air

2.單項(xiàng)選擇題After fitting back in place the gear wheels, dont forget () them.

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

3.單項(xiàng)選擇題After ensuring that the () is correct the bearing clearance should be checked.

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

5.單項(xiàng)選擇題A-frames are mounted on the bed plate and support () and cylinder block.

A.the main bearing
B.the cylinder cover
C.the entablature
D.the sump