Which of the following always falls under the EPA definition for “major maintenance, service, or repair?”

Which of the following actions would always be considered “major” under EPA’s regulations?

which of the following is a true statement regarding a refrigerant that can be used as a direct service ‘drop-in’ substitute for R-22

What is the approximate pressure of a storage cylinder of recovered R-134a that does not contain any non-condensable impurities and is stored in a room where the temperature is 80 F?

It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuate method. However, it;

Which of the following is NOT required for an appliance that is using an ozone-depleting refrigerant to be mothballed (thereby extending the leak repair deadline)?

For Which of the following refrigeration systems and appliances would it be permissible to use a passive recovery device for recovery of CFCs, HCFCs, and HFCs

What is maximum normal charge of HCFC or HFC refrigerant in an appliance that is allowed to use system dependent recovery equipment?

A rupture disc on a recovery vessel for low-pressure refrigerants relieves at;

Which component is particularly susceptible to leaks in low-pressure refrigeration systems with opendrive type compressors?