EPA 608 UNIVERSAL CERTIFICATION
FINAL EXAM WITH CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
1. What is the primary purpose of the EPA Section 608 regulations?
A. Regulate electrical installations
B. Prevent the release of refrigerants that harm the environment
C. Certify plumbers
D. Establish building codes
CORRECT ANSWER: B — Prevent the release of refrigerants that harm the environment
RATIONALE:
EPA Section 608 requires proper handling, recovery, recycling, and disposal of refrigerants to
protect the ozone layer and reduce greenhouse gas emissions.
2. Which refrigerant has the greatest ozone depletion potential (ODP)?
A. HFC-134a
B. HCFC-22
C. CFC-12
D. R-410A
CORRECT ANSWER: C — CFC-12
RATIONALE:
CFC refrigerants have the highest ozone depletion potential and have been phased out because of
their environmental impact.
3. What does the term "recovery" mean?
A. Cleaning refrigerant for reuse
B. Removing refrigerant from a system and storing it without processing
,C. Manufacturing refrigerant
D. Destroying refrigerant
CORRECT ANSWER: B — Removing refrigerant from a system and storing it without
processing
RATIONALE:
Recovery involves safely removing refrigerant and storing it in an approved container without
cleaning or testing it.
4. What is "recycling" of refrigerant?
A. Burning refrigerant
B. Cleaning refrigerant for reuse through oil separation and filtration
C. Mixing different refrigerants together
D. Venting refrigerant into the atmosphere
CORRECT ANSWER: B — Cleaning refrigerant for reuse through oil separation and
filtration
RATIONALE:
Recycling removes contaminants such as moisture, oil, and particulates for reuse in equipment.
5. Which action is prohibited under EPA Section 608?
A. Recovering refrigerant
B. Venting refrigerant into the atmosphere
C. Using certified recovery equipment
D. Repairing refrigerant leaks
CORRECT ANSWER: B — Venting refrigerant into the atmosphere
RATIONALE:
Knowingly venting regulated refrigerants is prohibited because of environmental damage.
6. Which certification allows a technician to work on all equipment covered
under Section 608?
A. Type I
B. Type II
, C. Type III
D. Universal Certification
CORRECT ANSWER: D — Universal Certification
RATIONALE:
Universal Certification covers Type I, II, and III equipment.
7. Which refrigerant is commonly used in household refrigerators?
A. R-134a
B. R-11
C. R-502
D. R-123
CORRECT ANSWER: A — R-134a
RATIONALE:
R-134a has been widely used in domestic refrigeration and automotive air conditioning.
8. What is the purpose of a recovery cylinder?
A. Store compressed air
B. Safely store recovered refrigerant
C. Store nitrogen only
D. Hold lubricating oil
CORRECT ANSWER: B — Safely store recovered refrigerant
RATIONALE:
Recovery cylinders are specially designed to safely contain recovered refrigerants.
9. Which color traditionally identifies an R-22 refrigerant cylinder?
A. Blue
B. Green
C. Light Green
D. Yellow
CORRECT ANSWER: C — Light Green
FINAL EXAM WITH CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
1. What is the primary purpose of the EPA Section 608 regulations?
A. Regulate electrical installations
B. Prevent the release of refrigerants that harm the environment
C. Certify plumbers
D. Establish building codes
CORRECT ANSWER: B — Prevent the release of refrigerants that harm the environment
RATIONALE:
EPA Section 608 requires proper handling, recovery, recycling, and disposal of refrigerants to
protect the ozone layer and reduce greenhouse gas emissions.
2. Which refrigerant has the greatest ozone depletion potential (ODP)?
A. HFC-134a
B. HCFC-22
C. CFC-12
D. R-410A
CORRECT ANSWER: C — CFC-12
RATIONALE:
CFC refrigerants have the highest ozone depletion potential and have been phased out because of
their environmental impact.
3. What does the term "recovery" mean?
A. Cleaning refrigerant for reuse
B. Removing refrigerant from a system and storing it without processing
,C. Manufacturing refrigerant
D. Destroying refrigerant
CORRECT ANSWER: B — Removing refrigerant from a system and storing it without
processing
RATIONALE:
Recovery involves safely removing refrigerant and storing it in an approved container without
cleaning or testing it.
4. What is "recycling" of refrigerant?
A. Burning refrigerant
B. Cleaning refrigerant for reuse through oil separation and filtration
C. Mixing different refrigerants together
D. Venting refrigerant into the atmosphere
CORRECT ANSWER: B — Cleaning refrigerant for reuse through oil separation and
filtration
RATIONALE:
Recycling removes contaminants such as moisture, oil, and particulates for reuse in equipment.
5. Which action is prohibited under EPA Section 608?
A. Recovering refrigerant
B. Venting refrigerant into the atmosphere
C. Using certified recovery equipment
D. Repairing refrigerant leaks
CORRECT ANSWER: B — Venting refrigerant into the atmosphere
RATIONALE:
Knowingly venting regulated refrigerants is prohibited because of environmental damage.
6. Which certification allows a technician to work on all equipment covered
under Section 608?
A. Type I
B. Type II
, C. Type III
D. Universal Certification
CORRECT ANSWER: D — Universal Certification
RATIONALE:
Universal Certification covers Type I, II, and III equipment.
7. Which refrigerant is commonly used in household refrigerators?
A. R-134a
B. R-11
C. R-502
D. R-123
CORRECT ANSWER: A — R-134a
RATIONALE:
R-134a has been widely used in domestic refrigeration and automotive air conditioning.
8. What is the purpose of a recovery cylinder?
A. Store compressed air
B. Safely store recovered refrigerant
C. Store nitrogen only
D. Hold lubricating oil
CORRECT ANSWER: B — Safely store recovered refrigerant
RATIONALE:
Recovery cylinders are specially designed to safely contain recovered refrigerants.
9. Which color traditionally identifies an R-22 refrigerant cylinder?
A. Blue
B. Green
C. Light Green
D. Yellow
CORRECT ANSWER: C — Light Green
