EPA 608 Certification Core Practice Test
EXAM 2026 Questions and Answers
As of what date did it become unlawful to release Class 1 and Class II refrigerants
to the atmosphere? - Correct answer-July 1, 1992.
What is the ozone layer and why is it important to us on Earth? - Correct answer-
Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the
stratosphere layer that extends about 6 to 30 miles above earth.
The atom found in CFC and HCFC refrigerants that destroys ozone in the
stratosphere is? - Correct answer-Chlorine.
What is an ozone molecule made of? - Correct answer-Three oxygen atoms (O3).
Which refrigerant is a CFC? - Correct answer-R-12.
What is the name of the atom that attacks ozone molecules? - Correct answer-
Chlorine and bromine atoms emitted into the atmosphere.
Which refrigerant is a HFC? - Correct answer-R-134a.
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EXAM 2026 Questions and Answers
As of what date did it become unlawful to release Class 1 and Class II refrigerants
to the atmosphere? - Correct answer-July 1, 1992.
What is the ozone layer and why is it important to us on Earth? - Correct answer-
Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the
stratosphere layer that extends about 6 to 30 miles above earth.
The atom found in CFC and HCFC refrigerants that destroys ozone in the
stratosphere is? - Correct answer-Chlorine.
What is an ozone molecule made of? - Correct answer-Three oxygen atoms (O3).
Which refrigerant is a CFC? - Correct answer-R-12.
What is the name of the atom that attacks ozone molecules? - Correct answer-
Chlorine and bromine atoms emitted into the atmosphere.
Which refrigerant is a HFC? - Correct answer-R-134a.
©COPYRIGHT 2025 ALL RIGHTS RESERVED 1