单项选择题During working of an air compressor, () should be drained.

A.oil sump
B.oil separator
C.outlet pipe
D.inlet pipe


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1.单项选择题During working of an air compressor, () should be drained.

A.inter cooler
B.cylinder
C.outlet pipe
D.inlet pipe

2.单项选择题Before starting an air compressor, It should be ().

A.unloaded
B.primed
C.filled with water
D.greased

3.单项选择题Before starting an air compressor, It should be ().

A.turned
B.oil level checked
C.filled with water
D.A and B

4.单项选择题The air compressor pumps air to the().

A.engine cylinder
B.air bottle
C.evaporator
D.condenser

5.单项选择题The air compressor pumps air to the ().

A.expansion tank
B.combustion chamber
C.air receiver
D.evaporator

6.单项选择题The air compressor pumps air to the ().

A.air cylinder
B.combustion chamber
C.steam drum
D.expansion tank

7.单项选择题The () stage air compressors are widely used on board the ship.

A.single
B.Ⅱ
C.Ⅲ
D.multiple

8.单项选择题The air filter is fixed in the () of an air compressor.

A.inlet pipe
B.outlet pipe
C.inter cooler
D.after cooler

9.单项选择题The () belongs to the mooring equipment.

A.steering gear
B.windlass
C.deck crane
D.warping drum

10.单项选择题The () is used to handle the ropes and wires.

A.steering gear
B.windlass
C.deck crane
D.warping drum