The （） stage air compressors are widel

1、A reciprocating air compressor is runn

A reciprocating air compressor is running roughly and vibrating excessively, indicating that the （）.Acompressor is overloadedBmotor is overloadedCfoundation bolts are looseDbelts are too tight

2、Air compressors are NOT permitted in w

Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?（）AA cargo handling roomBA space in which cargo hose is storedCAn enclosed space containing cargo pipingDAll of the above

3、Before starting an air compressor, It

Before starting an air compressor, It should be （）.AturnedBoil level checkedCfilled with waterDA and B

4、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...

5、On small, low pressure, air compressor

On small, low pressure, air compressors, the cylinders are usually lubricated by the （）.Asplash methodBmechanical force feed lubricatorsCdetached sump methodDinternal cooling passages in the crankshafts and connecting rod

6、The purpose of an air compressor unloa

The purpose of an air compressor unloading device is to （）Adrain water from the air receiverBdrain water from the cylindersCdelay the compression process until the motor is up to speedDcheck pump alignment