EPA Section 608 Universal Certification
Practice Exam Newest Updated 150
Questions And Correct Answers From
Actual Past Papers Exams (Graded A+)
Plus Rationales 2025|2026 Q&A |
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1. What is the primary purpose of the Clean Air Act?
A. To regulate water pollution
B. To reduce air pollution
C. To manage solid waste
D. To promote recycling
Answer: B
The Clean Air Act is designed to control and reduce air pollution to protect
human health and the environment.
2. Which refrigerant has the highest ozone depletion potential?
A. R-134a
B. R-22
C. R-12
D. R-410A
Answer: C
R-12 is a CFC with very high ozone depletion potential compared to other
refrigerants.
3. What does ODP stand for?
A. Ozone Depletion Potential
B. Operational Design Pressure
, C. Optimal Device Performance
D. Output Data Parameter
Answer: A
ODP measures how much a substance can damage the ozone layer.
4. Which refrigerants are being phased out due to ozone depletion?
A. HFCs
B. CFCs and HCFCs
C. Ammonia
D. CO2
Answer: B
CFCs and HCFCs contribute to ozone depletion and are regulated.
5. What is the ozone layer?
A. A ground-level pollutant
B. A layer of nitrogen
C. A protective layer in the stratosphere
D. A water vapor layer
Answer: C
The ozone layer absorbs harmful ultraviolet radiation from the sun.
6. What is the EPA’s role in refrigerant management?
A. Manufacturing refrigerants
B. Enforcing environmental laws
C. Installing HVAC systems
D. Repairing equipment
Answer: B
EPA enforces regulations like Section 608 to protect the environment.
7. What is recovery?
A. Cleaning refrigerant
B. Removing refrigerant and storing it
C. Reusing refrigerant immediately
D. Destroying refrigerant
, Answer: B
Recovery involves removing refrigerant without processing it.
8. What is recycling refrigerant?
A. Burning refrigerant
B. Reusing without cleaning
C. Cleaning refrigerant for reuse
D. Disposing refrigerant
Answer: C
Recycling removes oil and impurities for reuse in the same system.
9. What is reclamation?
A. On-site cleaning
B. Returning refrigerant to original purity
C. Disposal
D. Venting
Answer: B
Reclamation restores refrigerant to virgin specifications.
10.Venting refrigerant into the atmosphere is:
A. Allowed
B. Required
C. Illegal
D. Recommended
Answer: C
Venting is prohibited due to environmental harm.
11.Which refrigerant has zero ODP?
A. R-12
B. R-22
C. R-134a
D. R-11
Answer: C
HFCs like R-134a do not deplete ozone.
, 12.What does GWP stand for?
A. Global Warming Potential
B. General Work Pressure
C. Gas Weight Percentage
D. Green Work Policy
Answer: A
GWP measures a gas’s impact on global warming.
13.Which gas contributes most to global warming?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Helium
Answer: C
CO2 is the primary greenhouse gas affecting climate.
14.When should recovery equipment be certified?
A. Never
B. Only once
C. By EPA-approved labs
D. By manufacturer only
Answer: C
EPA requires certification by approved testing organizations.
15.What is a system-dependent recovery device?
A. Self-contained unit
B. Uses system compressor
C. Battery-operated
D. Manual device
Answer: B
It relies on the system’s compressor for recovery.
16.What is a self-contained recovery unit?
A. Uses system pressure
Practice Exam Newest Updated 150
Questions And Correct Answers From
Actual Past Papers Exams (Graded A+)
Plus Rationales 2025|2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of the Clean Air Act?
A. To regulate water pollution
B. To reduce air pollution
C. To manage solid waste
D. To promote recycling
Answer: B
The Clean Air Act is designed to control and reduce air pollution to protect
human health and the environment.
2. Which refrigerant has the highest ozone depletion potential?
A. R-134a
B. R-22
C. R-12
D. R-410A
Answer: C
R-12 is a CFC with very high ozone depletion potential compared to other
refrigerants.
3. What does ODP stand for?
A. Ozone Depletion Potential
B. Operational Design Pressure
, C. Optimal Device Performance
D. Output Data Parameter
Answer: A
ODP measures how much a substance can damage the ozone layer.
4. Which refrigerants are being phased out due to ozone depletion?
A. HFCs
B. CFCs and HCFCs
C. Ammonia
D. CO2
Answer: B
CFCs and HCFCs contribute to ozone depletion and are regulated.
5. What is the ozone layer?
A. A ground-level pollutant
B. A layer of nitrogen
C. A protective layer in the stratosphere
D. A water vapor layer
Answer: C
The ozone layer absorbs harmful ultraviolet radiation from the sun.
6. What is the EPA’s role in refrigerant management?
A. Manufacturing refrigerants
B. Enforcing environmental laws
C. Installing HVAC systems
D. Repairing equipment
Answer: B
EPA enforces regulations like Section 608 to protect the environment.
7. What is recovery?
A. Cleaning refrigerant
B. Removing refrigerant and storing it
C. Reusing refrigerant immediately
D. Destroying refrigerant
, Answer: B
Recovery involves removing refrigerant without processing it.
8. What is recycling refrigerant?
A. Burning refrigerant
B. Reusing without cleaning
C. Cleaning refrigerant for reuse
D. Disposing refrigerant
Answer: C
Recycling removes oil and impurities for reuse in the same system.
9. What is reclamation?
A. On-site cleaning
B. Returning refrigerant to original purity
C. Disposal
D. Venting
Answer: B
Reclamation restores refrigerant to virgin specifications.
10.Venting refrigerant into the atmosphere is:
A. Allowed
B. Required
C. Illegal
D. Recommended
Answer: C
Venting is prohibited due to environmental harm.
11.Which refrigerant has zero ODP?
A. R-12
B. R-22
C. R-134a
D. R-11
Answer: C
HFCs like R-134a do not deplete ozone.
, 12.What does GWP stand for?
A. Global Warming Potential
B. General Work Pressure
C. Gas Weight Percentage
D. Green Work Policy
Answer: A
GWP measures a gas’s impact on global warming.
13.Which gas contributes most to global warming?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Helium
Answer: C
CO2 is the primary greenhouse gas affecting climate.
14.When should recovery equipment be certified?
A. Never
B. Only once
C. By EPA-approved labs
D. By manufacturer only
Answer: C
EPA requires certification by approved testing organizations.
15.What is a system-dependent recovery device?
A. Self-contained unit
B. Uses system compressor
C. Battery-operated
D. Manual device
Answer: B
It relies on the system’s compressor for recovery.
16.What is a self-contained recovery unit?
A. Uses system pressure
