EPA SECTION 608 CERTIFICATION EXAM REAL 100 QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||2026 BRAND NEW VERSION!!
1. Which type of refrigerant is primarily associated with ozone depletion?
A. HFC
B. HC
C. CFC
D. CO2
Answer: C
Chlorofluorocarbons (CFCs) deplete the ozone layer because they release
chlorine atoms when broken down by UV light.
2. What is the main purpose of the EPA Section 608 certification?
A. To operate HVAC systems
B. To handle refrigerants safely
C. To install plumbing systems
D. To inspect electrical circuits
Answer: B
Section 608 certification ensures technicians handle refrigerants properly to
prevent environmental harm.
3. Type I certification allows you to work with:
A. Small appliances
B. High-pressure systems
C. Low-pressure systems
D. All HVAC systems
Answer: A
Type I is specific to small appliances containing 5 lbs or less of refrigerant.
4. Type II certification is required for:
A. Small appliances
B. Low-pressure systems
C. High-pressure systems
, D. Chillers only
Answer: C
Type II covers high- and very-high-pressure appliances, such as residential
AC and commercial systems.
5. Type III certification covers:
A. Low-pressure appliances
B. High-pressure appliances
C. Refrigerant recovery
D. Automotive AC only
Answer: A
Type III is for low-pressure systems like chillers using low-pressure
refrigerants.
6. Universal certification allows:
A. Handling only CFCs
B. Handling only HFCs
C. Handling all types of refrigerants
D. Handling ammonia systems only
Answer: C
Universal certification allows technicians to work with all types of regulated
refrigerants.
7. Which device measures the pressure in a refrigeration system?
A. Thermocouple
B. Manifold gauge
C. Hygrometer
D. Psychrometer
Answer: B
A manifold gauge set is used to measure both high- and low-side pressures
of a refrigeration system.
8. What does an ozone depletion potential (ODP) of 1 indicate?
A. No effect on ozone
B. Same effect as CFC-11
, C. Twice the effect of CFC-12
D. Negligible effect
Answer: B
ODP is measured relative to CFC-11, which has an ODP of 1.
9. Recovery of refrigerant is required:
A. Only when systems are new
B. Before opening or servicing equipment
C. Only in commercial systems
D. Only during system leaks
Answer: B
Technicians must recover refrigerant before service to prevent
environmental release.
10.Which of the following is a low-pressure refrigerant?
A. R-134a
B. R-22
C. R-123
D. R-410A
Answer: C
R-123 is used in low-pressure chillers and has a lower vapor pressure
compared to R-22 or R-410A.
11.Which refrigerant is commonly used in automotive AC systems?
A. R-22
B. R-134a
C. R-410A
D. R-123
Answer: B
R-134a replaced R-12 in automotive applications due to its lower ozone
depletion potential.
12.What is the primary environmental concern with refrigerant leaks?
A. Fire hazard
B. Corrosion
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||2026 BRAND NEW VERSION!!
1. Which type of refrigerant is primarily associated with ozone depletion?
A. HFC
B. HC
C. CFC
D. CO2
Answer: C
Chlorofluorocarbons (CFCs) deplete the ozone layer because they release
chlorine atoms when broken down by UV light.
2. What is the main purpose of the EPA Section 608 certification?
A. To operate HVAC systems
B. To handle refrigerants safely
C. To install plumbing systems
D. To inspect electrical circuits
Answer: B
Section 608 certification ensures technicians handle refrigerants properly to
prevent environmental harm.
3. Type I certification allows you to work with:
A. Small appliances
B. High-pressure systems
C. Low-pressure systems
D. All HVAC systems
Answer: A
Type I is specific to small appliances containing 5 lbs or less of refrigerant.
4. Type II certification is required for:
A. Small appliances
B. Low-pressure systems
C. High-pressure systems
, D. Chillers only
Answer: C
Type II covers high- and very-high-pressure appliances, such as residential
AC and commercial systems.
5. Type III certification covers:
A. Low-pressure appliances
B. High-pressure appliances
C. Refrigerant recovery
D. Automotive AC only
Answer: A
Type III is for low-pressure systems like chillers using low-pressure
refrigerants.
6. Universal certification allows:
A. Handling only CFCs
B. Handling only HFCs
C. Handling all types of refrigerants
D. Handling ammonia systems only
Answer: C
Universal certification allows technicians to work with all types of regulated
refrigerants.
7. Which device measures the pressure in a refrigeration system?
A. Thermocouple
B. Manifold gauge
C. Hygrometer
D. Psychrometer
Answer: B
A manifold gauge set is used to measure both high- and low-side pressures
of a refrigeration system.
8. What does an ozone depletion potential (ODP) of 1 indicate?
A. No effect on ozone
B. Same effect as CFC-11
, C. Twice the effect of CFC-12
D. Negligible effect
Answer: B
ODP is measured relative to CFC-11, which has an ODP of 1.
9. Recovery of refrigerant is required:
A. Only when systems are new
B. Before opening or servicing equipment
C. Only in commercial systems
D. Only during system leaks
Answer: B
Technicians must recover refrigerant before service to prevent
environmental release.
10.Which of the following is a low-pressure refrigerant?
A. R-134a
B. R-22
C. R-123
D. R-410A
Answer: C
R-123 is used in low-pressure chillers and has a lower vapor pressure
compared to R-22 or R-410A.
11.Which refrigerant is commonly used in automotive AC systems?
A. R-22
B. R-134a
C. R-410A
D. R-123
Answer: B
R-134a replaced R-12 in automotive applications due to its lower ozone
depletion potential.
12.What is the primary environmental concern with refrigerant leaks?
A. Fire hazard
B. Corrosion
