The circulation around a low pressure

1、The device used for low-pressure contr

The device used for low-pressure control and high-pressure cutout on a compressor is called a（）AcutoutBpressure controllerCcontroller switchDcutout switch

2、The purpose of the low pressure cut-ou

The purpose of the low pressure cut-out switch is to （）.Amaintain liquid refrigerant at the suction of the compressorBmaintain a preset suctio...

3、The sensing line for the low pressure

The sensing line for the low pressure cutout switch to a refrigeration system is located （）.Ain the chill boxBbefore the receiverCon the suction side of the compressorDon the discharge side of the compressor

4、High firing pressures and a low exhaus

High firing pressures and a low exhaust temperature in a diesel engine may result from （）.Adecreased piston to cylinder head clearanceBincreased exhaust system back pressureCearly fuel injection timingDlow scavenge air temperature

5、Low compression pressure in a diesel e

Low compression pressure in a diesel engine may be the result of （）Ainsufficient fuel supply due to fuel pump valves sticking or leakingBexce...

6、The device used for low-pressure contr

The device used for low-pressure control and high-pressure cutout on a compressor is called （）.AcutoutBcontroller switchCpressure controllerDcutout switch