EPA Section 608 Type III Certification Exam
practice test with 100 questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. Which of the following best describes the main focus of Type III
certification?
A. Residential air conditioning systems
B. Low-pressure centrifugal chillers
C. High-pressure and very high-pressure appliances
D. Small appliance refrigerant handling
Type III covers high-pressure systems including commercial and
industrial refrigeration.
2. When recovering refrigerant from a high-pressure system, which
of the following is correct?
A. Recover only liquid refrigerant
B. Recover both liquid and vapor to the certified cylinder
C. Vent into the atmosphere
D. Only use a manifold gauge set without a recovery unit
High-pressure systems require proper recovery of both liquid and
vapor to prevent emissions.
3. Which of these refrigerants is most commonly handled under
Type III certification?
A. R-134a
B. R-1234yf
, C. R-410A
D. R-22
R-410A and other high-pressure blends are classified as high-
pressure refrigerants.
4. What is the maximum allowable pressure for a Type III appliance
to be considered "high-pressure"?
A. 15 psig
B. 50 psig
C. >155 psig
D. >400 psig
EPA defines high-pressure systems as those with a pressure of 155
psig or higher at 104°F.
5. Before servicing a high-pressure system, what must be done?
A. Open the system and add refrigerant
B. Recover refrigerant using certified equipment
C. Flush with nitrogen only
D. Pump out oil
Recovering refrigerant prevents ozone depletion and complies with
EPA rules.
6. What type of recovery cylinder is required for high-pressure
refrigerants?
A. Any cylinder marked "recyclable"
B. DOT-approved cylinder designed for high-pressure refrigerants
C. Plastic container
D. Open-top tank
High-pressure cylinders are required for safety and EPA
compliance.
, 7. If you detect a refrigerant leak in a high-pressure system, what
should be your first action?
A. Continue operation
B. Repair leak following proper procedures
C. Vent the refrigerant
D. Add more refrigerant to compensate
EPA regulations prohibit venting; leaks must be repaired safely.
8. When recovering R-410A from a system with a flooded
compressor, the recovery method should be:
A. Vapor only
B. Liquid first, then vapor
C. Vapor then liquid
D. Only add oil
Recovering liquid first is faster and prevents system damage.
9. Which of the following personal protective equipment is
recommended when servicing high-pressure systems?
A. Gloves only
B. Gloves, safety glasses, and protective clothing
C. Respirator only
D. None needed
High-pressure refrigerants can cause burns and frostbite; full PPE
is necessary.
10. EPA Section 608 requires that recovery equipment be:
A. Checked only before first use
B. Certified and leak-checked before each use
C. Cleaned only after use
D. Optional if the refrigerant is recycled
practice test with 100 questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. Which of the following best describes the main focus of Type III
certification?
A. Residential air conditioning systems
B. Low-pressure centrifugal chillers
C. High-pressure and very high-pressure appliances
D. Small appliance refrigerant handling
Type III covers high-pressure systems including commercial and
industrial refrigeration.
2. When recovering refrigerant from a high-pressure system, which
of the following is correct?
A. Recover only liquid refrigerant
B. Recover both liquid and vapor to the certified cylinder
C. Vent into the atmosphere
D. Only use a manifold gauge set without a recovery unit
High-pressure systems require proper recovery of both liquid and
vapor to prevent emissions.
3. Which of these refrigerants is most commonly handled under
Type III certification?
A. R-134a
B. R-1234yf
, C. R-410A
D. R-22
R-410A and other high-pressure blends are classified as high-
pressure refrigerants.
4. What is the maximum allowable pressure for a Type III appliance
to be considered "high-pressure"?
A. 15 psig
B. 50 psig
C. >155 psig
D. >400 psig
EPA defines high-pressure systems as those with a pressure of 155
psig or higher at 104°F.
5. Before servicing a high-pressure system, what must be done?
A. Open the system and add refrigerant
B. Recover refrigerant using certified equipment
C. Flush with nitrogen only
D. Pump out oil
Recovering refrigerant prevents ozone depletion and complies with
EPA rules.
6. What type of recovery cylinder is required for high-pressure
refrigerants?
A. Any cylinder marked "recyclable"
B. DOT-approved cylinder designed for high-pressure refrigerants
C. Plastic container
D. Open-top tank
High-pressure cylinders are required for safety and EPA
compliance.
, 7. If you detect a refrigerant leak in a high-pressure system, what
should be your first action?
A. Continue operation
B. Repair leak following proper procedures
C. Vent the refrigerant
D. Add more refrigerant to compensate
EPA regulations prohibit venting; leaks must be repaired safely.
8. When recovering R-410A from a system with a flooded
compressor, the recovery method should be:
A. Vapor only
B. Liquid first, then vapor
C. Vapor then liquid
D. Only add oil
Recovering liquid first is faster and prevents system damage.
9. Which of the following personal protective equipment is
recommended when servicing high-pressure systems?
A. Gloves only
B. Gloves, safety glasses, and protective clothing
C. Respirator only
D. None needed
High-pressure refrigerants can cause burns and frostbite; full PPE
is necessary.
10. EPA Section 608 requires that recovery equipment be:
A. Checked only before first use
B. Certified and leak-checked before each use
C. Cleaned only after use
D. Optional if the refrigerant is recycled
