EPA Section 608 Type II Certification Mock
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 EPA Section 608 regulations?
A. To increase HVAC efficiency
B. To reduce refrigerant costs
C. To protect the ozone layer
D. To improve indoor air quality
Answer: C
The EPA Section 608 rules are designed to prevent the release of ozone-
depleting substances into the atmosphere.
2. Which refrigerant is classified as an HCFC?
A. R-134a
B. R-22
C. R-410A
D. R-744
Answer: B
R-22 is a hydrochlorofluorocarbon (HCFC), which has ozone depletion
potential.
3. What does “recovery” mean in refrigerant handling?
A. Cleaning refrigerant
B. Reusing refrigerant
C. Removing refrigerant from a system and storing it
D. Destroying refrigerant
, Answer: C
Recovery is simply removing refrigerant and storing it without processing.
4. What is the required evacuation level for high-pressure appliances before
disposal?
A. 0 inches Hg
B. 4 inches Hg vacuum
C. 10 inches Hg vacuum
D. 15 inches Hg vacuum
Answer: B
EPA requires at least 4 inches Hg vacuum for high-pressure appliances
before disposal.
5. Which refrigerant has zero ozone depletion potential?
A. R-22
B. R-11
C. R-134a
D. R-12
Answer: C
R-134a is an HFC and does not contain chlorine, so it does not deplete
ozone.
6. What is the ozone depletion potential (ODP) of CFCs?
A. Low
B. Moderate
C. High
D. Zero
Answer: C
CFCs have a high ODP due to their chlorine content.
7. Which gas is most harmful to the ozone layer?
A. Nitrogen
B. Chlorine
C. Oxygen
, D. Hydrogen
Answer: B
Chlorine atoms break down ozone molecules in the stratosphere.
8. What must technicians have to purchase refrigerants?
A. Driver’s license
B. EPA certification
C. Business license
D. Insurance
Answer: B
EPA certification is required to handle regulated refrigerants.
9. What is “recycling” refrigerant?
A. Burning it
B. Filtering and cleaning for reuse
C. Dumping it
D. Freezing it
Answer: B
Recycling removes oil and contaminants so refrigerant can be reused in
the same system.
10.What is “reclaiming” refrigerant?
A. Storing it
B. Cleaning to new product specifications
C. Burning it
D. Mixing refrigerants
Answer: B
Reclaiming processes refrigerant to meet virgin standards.
11.Which refrigerant operates at the highest pressure?
A. R-22
B. R-12
C. R-410A
D. R-11
, Answer: C
R-410A operates at significantly higher pressures than older refrigerants.
12.What type of appliances does Type II certification cover?
A. Small appliances
B. Low-pressure chillers
C. High-pressure and very high-pressure systems
D. Automotive systems
Answer: C
Type II certification applies to high-pressure appliances.
13.When must leaks be repaired in systems with over 50 pounds of
refrigerant?
A. Immediately
B. Within 30 days
C. Within 1 year
D. Never
Answer: B
EPA requires repair within 30 days if leak rates exceed thresholds.
14.What is the leak rate threshold for comfort cooling systems?
A. 5%
B. 10%
C. 15%
D. 20%
Answer: C
Comfort cooling systems must be repaired if leaks exceed 15% annually.
15.What is the main component of HCFC refrigerants?
A. Bromine
B. Chlorine
C. Nitrogen
D. Oxygen
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 EPA Section 608 regulations?
A. To increase HVAC efficiency
B. To reduce refrigerant costs
C. To protect the ozone layer
D. To improve indoor air quality
Answer: C
The EPA Section 608 rules are designed to prevent the release of ozone-
depleting substances into the atmosphere.
2. Which refrigerant is classified as an HCFC?
A. R-134a
B. R-22
C. R-410A
D. R-744
Answer: B
R-22 is a hydrochlorofluorocarbon (HCFC), which has ozone depletion
potential.
3. What does “recovery” mean in refrigerant handling?
A. Cleaning refrigerant
B. Reusing refrigerant
C. Removing refrigerant from a system and storing it
D. Destroying refrigerant
, Answer: C
Recovery is simply removing refrigerant and storing it without processing.
4. What is the required evacuation level for high-pressure appliances before
disposal?
A. 0 inches Hg
B. 4 inches Hg vacuum
C. 10 inches Hg vacuum
D. 15 inches Hg vacuum
Answer: B
EPA requires at least 4 inches Hg vacuum for high-pressure appliances
before disposal.
5. Which refrigerant has zero ozone depletion potential?
A. R-22
B. R-11
C. R-134a
D. R-12
Answer: C
R-134a is an HFC and does not contain chlorine, so it does not deplete
ozone.
6. What is the ozone depletion potential (ODP) of CFCs?
A. Low
B. Moderate
C. High
D. Zero
Answer: C
CFCs have a high ODP due to their chlorine content.
7. Which gas is most harmful to the ozone layer?
A. Nitrogen
B. Chlorine
C. Oxygen
, D. Hydrogen
Answer: B
Chlorine atoms break down ozone molecules in the stratosphere.
8. What must technicians have to purchase refrigerants?
A. Driver’s license
B. EPA certification
C. Business license
D. Insurance
Answer: B
EPA certification is required to handle regulated refrigerants.
9. What is “recycling” refrigerant?
A. Burning it
B. Filtering and cleaning for reuse
C. Dumping it
D. Freezing it
Answer: B
Recycling removes oil and contaminants so refrigerant can be reused in
the same system.
10.What is “reclaiming” refrigerant?
A. Storing it
B. Cleaning to new product specifications
C. Burning it
D. Mixing refrigerants
Answer: B
Reclaiming processes refrigerant to meet virgin standards.
11.Which refrigerant operates at the highest pressure?
A. R-22
B. R-12
C. R-410A
D. R-11
, Answer: C
R-410A operates at significantly higher pressures than older refrigerants.
12.What type of appliances does Type II certification cover?
A. Small appliances
B. Low-pressure chillers
C. High-pressure and very high-pressure systems
D. Automotive systems
Answer: C
Type II certification applies to high-pressure appliances.
13.When must leaks be repaired in systems with over 50 pounds of
refrigerant?
A. Immediately
B. Within 30 days
C. Within 1 year
D. Never
Answer: B
EPA requires repair within 30 days if leak rates exceed thresholds.
14.What is the leak rate threshold for comfort cooling systems?
A. 5%
B. 10%
C. 15%
D. 20%
Answer: C
Comfort cooling systems must be repaired if leaks exceed 15% annually.
15.What is the main component of HCFC refrigerants?
A. Bromine
B. Chlorine
C. Nitrogen
D. Oxygen
