EPA Certification Exam Questions and
Answers
1. Which Refrigerants contain the most chlorine?: CFC's
2. As of what date did it become unlawful to intentionally release
Class 1 and Class 2 refrigerants to the atmosphere?: July 1, 1992
3. Which Refrigerants have the lowest zone depletion potential?:
HFC's
4. The molecule found in CFC's and HCHC's refrigerants that
destroys the ozone in the stratosphere is:: Chlorine
5. Stratospheric ozone consists of:: Three oxygen atoms
6. Stratospheric ozone depletion
is a problem:: Global
7. The Gas in the stratosphere that protects us from ultraviolet radiation
is:: Ozone
8. Which refrigerant is a CFC?: R-12
1/
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, 9. Which refrigerant is an HCFC?: R-123 & R-22
10. Which refrigerant is an HFC?: R-134a
11. Which refrigerant contains no chlorine?: R-134a
12. The Molecule found in the stratosphere that indicates
stratospheric ozone depletion is taking place is:: Chlorine monoxide
13. The following actions would violate the clean air act (CAA)::
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
14. One time (disposable) refrigerant cylinders are used for:: Virgin
refrigerant
15. The
rule of thumb for refilling approved cylinders is a maximum of
percent liquid?: 80%
16. The time it takes to properly evacuate and dehydrate a
2/
14
Answers
1. Which Refrigerants contain the most chlorine?: CFC's
2. As of what date did it become unlawful to intentionally release
Class 1 and Class 2 refrigerants to the atmosphere?: July 1, 1992
3. Which Refrigerants have the lowest zone depletion potential?:
HFC's
4. The molecule found in CFC's and HCHC's refrigerants that
destroys the ozone in the stratosphere is:: Chlorine
5. Stratospheric ozone consists of:: Three oxygen atoms
6. Stratospheric ozone depletion
is a problem:: Global
7. The Gas in the stratosphere that protects us from ultraviolet radiation
is:: Ozone
8. Which refrigerant is a CFC?: R-12
1/
14
, 9. Which refrigerant is an HCFC?: R-123 & R-22
10. Which refrigerant is an HFC?: R-134a
11. Which refrigerant contains no chlorine?: R-134a
12. The Molecule found in the stratosphere that indicates
stratospheric ozone depletion is taking place is:: Chlorine monoxide
13. The following actions would violate the clean air act (CAA)::
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
14. One time (disposable) refrigerant cylinders are used for:: Virgin
refrigerant
15. The
rule of thumb for refilling approved cylinders is a maximum of
percent liquid?: 80%
16. The time it takes to properly evacuate and dehydrate a
2/
14
