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EPA Certification Exam 2024 Questions and Answers 2024 / 2025 (Verified Answers by Expert)
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EPA Certification Exam 2024 Questions and Answers 2024 / 2025 (Verified Answers by Expert)
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EPA Certification Exam.pdf file:///C:/Users/HP/Desktop/TYPA%20NEW/EPA%20Certification%EPA Certification Exam
1. Which Refrigerants contain the most chlorine?
ANS CFC's
2. As of what date did it become unlawful to intentionally release Class 1 and Class 2
refrigerants to the atmosphere?
ANS July 1, 1992
3. Which Refrigerants have the lowest zone depletion potential?
ANS HFC's
4. The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in
the stratosphere is
ANS Chlorine
5. Stratospheric ozone consists of
ANS Three oxygen atoms
6. Stratospheric ozone depletion is a problem
ANS Global
7. The Gas in the stratosphere that protects us from ultraviolet radiation is
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ANS Ozone
8. Which refrigerant is a CFC?
ANS R-12
9. Which refrigerant is an HCFC?
ANS R-123 & R-22
10. Which refrigerant is an HFC?
ANS R-134a
11. Which refrigerant contains no chlorine?
ANS R-134a
12. The Molecule found in the stratosphere that indicates stratospheric ozone depletion is
taking place is
ANS Chlorine monoxide
13. 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
14. One time (disposable) refrigerant cylinders are used for
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ANS Virgin refrigerant
15. The rule of thumb for refilling approved cylinders is a maximum of
percent liquid?
ANS 80%
16. 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
17. A system that fails to hold a vacuum after the evacuation process
ANS May contain moisture
May have a leak
18. To recover refrigerant is to
ANS Remove refrigerant is any condition from a system in either an active or passive manner,
and store it in an external container without necessarily testing or processing.
19. The process that reduces contaminate in used refrigerant by oil separation with single
and multiple passes through devices such as replaceable filter core driers, which reduces
moisture, acidity, and particulate matter is
ANS Recy- cling
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