with Correct Answers
Industrial process and refrigeration units with a 50 pound charge or more with an annualized
leak rate of _____or more must have leaks repaired. - 35
Unless plans are made to replace a system exceeding the maximum leak, repairs must be made
in; - 30 days
Refrigerants CFC R-12, HCFC R-22, and HFC 134a are all classified as; - a 1
All Refrigeration & HVAC systems are protected by a; - pressure relief valve
A refrigerant sensor which will sound an alarm and automatically start a ventilation system in
occupied equipment rooms fall under; - ASHRAE Standard 15
Non-condensables will cause; - High discharge pressure
A crankcase heater is often used to prevent refrigerant from migrating to the oil during periods
of: - Low ambient temperature
EPA regulations state that maintenance, service or repair involving the removal of the following
component is a "major repair" - Pressure switch
Which of the following refrigerants is an HCFC? - R-22
What can be done with the refrigerant trace gas and nitrogen after the leak is found? - Release
to the atmosphere.