EPA Certification Exam Questions With Complete Solutions
A condition of excessive superheat at the evaporator outlet and
compressor inlet of an air conditioning system could be an
indication of: Correct Answers Low on refrigerant charge
A low pressure chiller generally has the rupture disk set at:
Correct Answers 15 psig
A low pressure chiller providing comfort cooling that has an
annual leak rate of ___ % of the total charge, must be repaired:
Correct Answers 15%
A major repair is defined by EPA, as replacing the: Correct
Answers Compressor or the Evaporator
A nitrogen tank should always be equipped with a: Correct
Answers Pressure regulator
A system has been operating with a complete restriction at the
capillary tube inlet, what access is required for recovery?
Correct Answers One access valve on the high side of the
system
A system that fails to hold a vacuum after the evacuation
process: Correct Answers May contain moisture
May have a leak
As of what date did it become unlawful to intentionally release
Class 1 and Class 2 refrigerants to the atmosphere? Correct
Answers July 1, 1992
, At room ambient temperature of 80 degrees F, the pressure of a
cylinder containing R-22 will be Correct Answers 143 psig
Before a low pressure appliance is dismantled and salvaged:
Correct Answers The refrigerant must be recovered
Before disposing of a small appliance containing R-12, it is
necessary to: Correct Answers Recover the refrigerant
CFC an HCFC refrigerants can cause suffocation because
Correct Answers They are heavier than air and displace oxygen
CFC's will not be manufactured in the united states after:
Correct Answers 1995
Comfort cooling chillers and all other equipment with an annual
leak rate of ___% requires repair under EPA regulations:
Correct Answers 15%
Containers of refrigerant R-134a are cooler coded: Correct
Answers Light Blue
deep vacuums used for evacuation and dehydration of systems
are measured in: Correct Answers Microns
Disposable refrigerants cylinders should be disposed of by:
Correct Answers Rendering useless and sent to salvage
exceptions to the required levels for recovery equipment that
require an appliance be evacuated to only 0 psig apply to
A condition of excessive superheat at the evaporator outlet and
compressor inlet of an air conditioning system could be an
indication of: Correct Answers Low on refrigerant charge
A low pressure chiller generally has the rupture disk set at:
Correct Answers 15 psig
A low pressure chiller providing comfort cooling that has an
annual leak rate of ___ % of the total charge, must be repaired:
Correct Answers 15%
A major repair is defined by EPA, as replacing the: Correct
Answers Compressor or the Evaporator
A nitrogen tank should always be equipped with a: Correct
Answers Pressure regulator
A system has been operating with a complete restriction at the
capillary tube inlet, what access is required for recovery?
Correct Answers One access valve on the high side of the
system
A system that fails to hold a vacuum after the evacuation
process: Correct Answers May contain moisture
May have a leak
As of what date did it become unlawful to intentionally release
Class 1 and Class 2 refrigerants to the atmosphere? Correct
Answers July 1, 1992
, At room ambient temperature of 80 degrees F, the pressure of a
cylinder containing R-22 will be Correct Answers 143 psig
Before a low pressure appliance is dismantled and salvaged:
Correct Answers The refrigerant must be recovered
Before disposing of a small appliance containing R-12, it is
necessary to: Correct Answers Recover the refrigerant
CFC an HCFC refrigerants can cause suffocation because
Correct Answers They are heavier than air and displace oxygen
CFC's will not be manufactured in the united states after:
Correct Answers 1995
Comfort cooling chillers and all other equipment with an annual
leak rate of ___% requires repair under EPA regulations:
Correct Answers 15%
Containers of refrigerant R-134a are cooler coded: Correct
Answers Light Blue
deep vacuums used for evacuation and dehydration of systems
are measured in: Correct Answers Microns
Disposable refrigerants cylinders should be disposed of by:
Correct Answers Rendering useless and sent to salvage
exceptions to the required levels for recovery equipment that
require an appliance be evacuated to only 0 psig apply to
