Electrician Practice Tests

Refrigerant is a good ……………..

If vacuum pump is used in passive recovery what should be introduced in system to increase the pressure and avoid moisture freezing?

What is the main function condenser in the refrigeration system?

Which of the following refrigerant has highest Global Warming Potential (GWP)?

Venting HFC’s since ………………… is violation of section 608 of federal clean air act.

The temperature of the liquid refrigerant entering in the evaporator must be ………….. surrounding air.

The high pressure gauge usually measures ………………… pressure

If the high pressure gauge reads unusual high pressure in the refrigeration system the probable cause is ……………..

Systems containing 10 kg of HFC must be leak tested ………….

The mixed refrigerants can be separated and reclaimed.

If a refrigeration system had a major component failure

What is to be likely occurred in the refrigeration system when the strong odor is detected during the recovery process?

During evacuation of a system what is the benefit of using small length and large diameter gauge set hose?