The air compressor pumps air to the（）.

1、The compressed air is admitted to each

The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its （）.ABDCBTDCCBBDCDATDC

2、Cooling the intake air supplied to a d

Cooling the intake air supplied to a diesel engine will （）.Areduce mean effective pressureBdecrease average compression pressureCdecrease air charge densityDincrease power output

3、The starting air bottle should be pump

The starting air bottle should be pumped up to maximum pressure by the （） before start of the engine.Aair compressorBrefrigeration compressorCvacuum pumpDpurifier

4、The （） stage air compressors are widel

The （） stage air compressors are widely used on board the ship.AsingleBⅡCⅢDmultiple

5、Air in the fuel lines to the fuel inje

Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to （）Aburn excessive amounts of lube oilBoverheat without smokingCoperate with reduce power or stopDrun away without load

6、The compressor in an air-cooled conden

The compressor in an air-cooled condensing refrigeration system is short cycling on the high pressure cutout switch（）Asystem is overcharged with...