NURSE CELESTINE
1|Page
EPA CERTIFICATION EXAM WITH QUESTIONS
AND 100% CORRECT ANSWERS|| LATEST AND
COMPLETE VERSION 2025-2026 WITH EXPERT
VERIFIED SOLUTIONS|| ASSURED PASS
Which Refrigerants contain the most chlorine? - ANSWER: CFC's
As of what date did it become unlawful to intentionally release Class 1
and Class 2 refrigerants to the atmosphere? - ANSWER: July 1, 1992
Which Refrigerants have the lowest zone depletion potential? -
ANSWER: HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the
ozone in the stratosphere is: - ANSWER: Chlorine
Stratospheric ozone consists of: - ANSWER: Three oxygen atoms
Stratospheric ozone depletion is a problem: - ANSWER:
Global
The Gas in the stratosphere that protects us from ultraviolet radiation is:
- ANSWER: Ozone
Which refrigerant is a CFC? - ANSWER: R-12
, NURSE CELESTINE
NURSE CELESTINE
2|Page
Which refrigerant is an HCFC? - ANSWER: R-123 & R-22
Which refrigerant is an HFC? - ANSWER: R-134a
Which refrigerant contains no chlorine? - ANSWER: R-134a
The Molecule found in the stratosphere that indicates stratospheric
ozone depletion is taking place is: - ANSWER: Chlorine monoxide
The following actions would violate the clean air act (CAA): -
ANSWER: 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: - ANSWER:
Virgin refrigerant
The rule of thumb for refilling approved cylinders is a maximum of
percent liquid? - ANSWER: 80%
The time it takes to properly evacuate and dehydrate a system prior to
charging with refrigerant is determined by the: - ANSWER: Total
volume of the system
Amount of non-condensibles (moisture) in the system
1|Page
EPA CERTIFICATION EXAM WITH QUESTIONS
AND 100% CORRECT ANSWERS|| LATEST AND
COMPLETE VERSION 2025-2026 WITH EXPERT
VERIFIED SOLUTIONS|| ASSURED PASS
Which Refrigerants contain the most chlorine? - ANSWER: CFC's
As of what date did it become unlawful to intentionally release Class 1
and Class 2 refrigerants to the atmosphere? - ANSWER: July 1, 1992
Which Refrigerants have the lowest zone depletion potential? -
ANSWER: HFC's
The molecule found in CFC's and HCHC's refrigerants that destroys the
ozone in the stratosphere is: - ANSWER: Chlorine
Stratospheric ozone consists of: - ANSWER: Three oxygen atoms
Stratospheric ozone depletion is a problem: - ANSWER:
Global
The Gas in the stratosphere that protects us from ultraviolet radiation is:
- ANSWER: Ozone
Which refrigerant is a CFC? - ANSWER: R-12
, NURSE CELESTINE
NURSE CELESTINE
2|Page
Which refrigerant is an HCFC? - ANSWER: R-123 & R-22
Which refrigerant is an HFC? - ANSWER: R-134a
Which refrigerant contains no chlorine? - ANSWER: R-134a
The Molecule found in the stratosphere that indicates stratospheric
ozone depletion is taking place is: - ANSWER: Chlorine monoxide
The following actions would violate the clean air act (CAA): -
ANSWER: 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: - ANSWER:
Virgin refrigerant
The rule of thumb for refilling approved cylinders is a maximum of
percent liquid? - ANSWER: 80%
The time it takes to properly evacuate and dehydrate a system prior to
charging with refrigerant is determined by the: - ANSWER: Total
volume of the system
Amount of non-condensibles (moisture) in the system
