EPA A31 2024/2025 Exam Questions and
Detailed Answers | Get it 100% Correct
Answers
What does ozone in the stratosphere above the earth consist of? -
🧠ANSWER ✔✔molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential?
- 🧠ANSWER ✔✔R-600a
Which of the following gasses is used as the baseline measurement for
global warming potential? - 🧠ANSWER ✔✔carbon dioxide
Which type of refrigerant typically has the lowest global warming potential?
- 🧠ANSWER ✔✔HFOs
What is the state of the refrigerant entering the compressor of a
refrigeration system? - 🧠ANSWER ✔✔low pressure vapor
Why are HFO refrigerants less flammable than hydrocarbon refrigerants? -
🧠ANSWER ✔✔They contain flourine
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, What does a section 608 certification allow a technician to do? -
🧠ANSWER ✔✔Purchase or handle controlled refrigerants
Which refrigerant has the highest ozone depletion potential (ODP)? -
🧠ANSWER ✔✔CFCs
Which of the following refrigerants contain chlorine? - 🧠ANSWER ✔✔R-22
HFC refrigerants contain which of the following? - 🧠ANSWER ✔✔hydrogen
fluorine carbon
What is being done in the U.S. to stop damage to the stratospheric ozone
layer? - 🧠ANSWER ✔✔Phasing out the use of chlorofluorocarbons and
hydrochlorofluorocarbons
How should disposable cylinders of CFCs, HCFCs, and HFCs be
discarded? - 🧠ANSWER ✔✔Recover all remaining refrigerant, render the
cylinders useless, and recycle the metal.
In addition to fines and being required to appear in court, what penalty can
be imposed on service technicians who violate Clean Air Act provisions? -
🧠ANSWER ✔✔They may lose their certification
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
Detailed Answers | Get it 100% Correct
Answers
What does ozone in the stratosphere above the earth consist of? -
🧠ANSWER ✔✔molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential?
- 🧠ANSWER ✔✔R-600a
Which of the following gasses is used as the baseline measurement for
global warming potential? - 🧠ANSWER ✔✔carbon dioxide
Which type of refrigerant typically has the lowest global warming potential?
- 🧠ANSWER ✔✔HFOs
What is the state of the refrigerant entering the compressor of a
refrigeration system? - 🧠ANSWER ✔✔low pressure vapor
Why are HFO refrigerants less flammable than hydrocarbon refrigerants? -
🧠ANSWER ✔✔They contain flourine
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, What does a section 608 certification allow a technician to do? -
🧠ANSWER ✔✔Purchase or handle controlled refrigerants
Which refrigerant has the highest ozone depletion potential (ODP)? -
🧠ANSWER ✔✔CFCs
Which of the following refrigerants contain chlorine? - 🧠ANSWER ✔✔R-22
HFC refrigerants contain which of the following? - 🧠ANSWER ✔✔hydrogen
fluorine carbon
What is being done in the U.S. to stop damage to the stratospheric ozone
layer? - 🧠ANSWER ✔✔Phasing out the use of chlorofluorocarbons and
hydrochlorofluorocarbons
How should disposable cylinders of CFCs, HCFCs, and HFCs be
discarded? - 🧠ANSWER ✔✔Recover all remaining refrigerant, render the
cylinders useless, and recycle the metal.
In addition to fines and being required to appear in court, what penalty can
be imposed on service technicians who violate Clean Air Act provisions? -
🧠ANSWER ✔✔They may lose their certification
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
