EPA CERTIFICATION EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS | LATEST VERSION 2025/2026.
Which Refrigerants contain the most chlorine? - ANS CFC's
As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants
to the atmosphere? - ANS July 1, 1992
Which Refrigerants have the lowest zone depletion potential? - ANS HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the
stratosphere is: - ANS Chlorine
Stratospheric ozone consists of: - ANS Three oxygen atoms
Stratospheric ozone depletion is a _________ problem: - ANS Global
The Gas in the stratosphere that protects us from ultraviolet radiation is: - ANS Ozone
Which refrigerant is a CFC? - ANS R-12
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Which refrigerant is an HCFC? - ANS R-123 & R-22
Which refrigerant is an HFC? - ANS R-134a
Which refrigerant contains no chlorine? - ANS R-134a
The Molecule found in the stratosphere that indicates stratospheric ozone depletion is taking
place is: - ANS Chlorine monoxide
The following actions would violate the clean air act (CAA): - ANS Knowingly releasing Class 1
Class 2 substances
failing to keep or falsifying required records
failing to tech the required evacuation levels before opening a systems to the atmosphere for
service
One time (disposable) refrigerant cylinders are used for: - ANS Virgin refrigerant
The rule of thumb for refilling approved cylinders is a maximum of _____ percent liquid? -
ANS 80%
The time it takes to properly evacuate and dehydrate a system prior to charging with
refrigerant is determined by the: - ANS Total volume of the system
Amount of non-condensibles (moisture) in the system
Ambient Temperature
A system that fails to hold a vacuum after the evacuation process: - ANS May contain
moisture
May have a leak
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS WITH 100% CORRECT
ANSWERS | LATEST VERSION 2025/2026.
Which Refrigerants contain the most chlorine? - ANS CFC's
As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants
to the atmosphere? - ANS July 1, 1992
Which Refrigerants have the lowest zone depletion potential? - ANS HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the
stratosphere is: - ANS Chlorine
Stratospheric ozone consists of: - ANS Three oxygen atoms
Stratospheric ozone depletion is a _________ problem: - ANS Global
The Gas in the stratosphere that protects us from ultraviolet radiation is: - ANS Ozone
Which refrigerant is a CFC? - ANS R-12
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Which refrigerant is an HCFC? - ANS R-123 & R-22
Which refrigerant is an HFC? - ANS R-134a
Which refrigerant contains no chlorine? - ANS R-134a
The Molecule found in the stratosphere that indicates stratospheric ozone depletion is taking
place is: - ANS Chlorine monoxide
The following actions would violate the clean air act (CAA): - ANS Knowingly releasing Class 1
Class 2 substances
failing to keep or falsifying required records
failing to tech the required evacuation levels before opening a systems to the atmosphere for
service
One time (disposable) refrigerant cylinders are used for: - ANS Virgin refrigerant
The rule of thumb for refilling approved cylinders is a maximum of _____ percent liquid? -
ANS 80%
The time it takes to properly evacuate and dehydrate a system prior to charging with
refrigerant is determined by the: - ANS Total volume of the system
Amount of non-condensibles (moisture) in the system
Ambient Temperature
A system that fails to hold a vacuum after the evacuation process: - ANS May contain
moisture
May have a leak
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
