EPA Section 608 Type III Certification Exam
Questions With Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary function of a Type III technician?
A) Service small appliances
B) Recover refrigerants from high-pressure systems
C) Service and maintain high-pressure, high-volume refrigerant
systems
D) Install household air conditioners
C) Service and maintain high-pressure, high-volume refrigerant
systems
Type III certification is required for handling high-pressure
refrigerants typically used in large commercial systems.
2. Which refrigerants are considered high-pressure under EPA
regulations?
A) R-22 and R-410A
B) R-134a and R-404A
, C) R-12 and R-502
D) R-134a only
A) R-22 and R-410A
High-pressure refrigerants include those with a high boiling
point, commonly found in commercial systems like R-22 and R-
410A.
3. What tool is essential for verifying proper refrigerant recovery?
A) Thermometer
B) Vacuum pump
C) Recovery machine
D) Leak detector
C) Recovery machine
A recovery machine is used to safely remove refrigerant from a
system without releasing it into the atmosphere.
4. What is the minimum recovery requirement for non-condensing
appliances using high-pressure refrigerant?
A) 80% of the charge
B) 90% of the charge
C) 95% of the charge
D) 100% of the charge
A) 80% of the charge
, EPA regulations require recovering at least 80% of the
refrigerant in non-condensing appliances before opening the
system.
5. When working with high-pressure refrigerants, why is proper
personal protective equipment (PPE) important?
A) To improve efficiency
B) To prevent refrigerant exposure and frostbite
C) To avoid paperwork errors
D) To reduce noise
B) To prevent refrigerant exposure and frostbite
High-pressure refrigerants can cause skin burns or frostbite if
they come into direct contact with skin.
6. What must a Type III technician do before servicing a system?
A) Check the refrigerant type and charge
B) Verify system operation and pressures
C) Ensure recovery equipment is functional
D) All of the above
D) All of the above
Proper preparation ensures safe and effective service, prevents
leaks, and complies with EPA regulations.
, 7. Which gauge set color indicates high-pressure lines?
A) Red
B) Blue
C) Yellow
D) Green
A) Red
Red is universally used for high-pressure refrigerant lines to
prevent operator errors.
8. Which type of system is most commonly serviced by a Type III
technician?
A) Residential window AC units
B) Large commercial chillers
C) Automotive air conditioning
D) Household refrigerators
B) Large commercial chillers
Type III covers high-pressure systems often found in commercial
and industrial applications.
9. What should be done if a system is found to have insufficient
refrigerant during recovery?
A) Leave the system running
B) Add refrigerant immediately
Questions With Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary function of a Type III technician?
A) Service small appliances
B) Recover refrigerants from high-pressure systems
C) Service and maintain high-pressure, high-volume refrigerant
systems
D) Install household air conditioners
C) Service and maintain high-pressure, high-volume refrigerant
systems
Type III certification is required for handling high-pressure
refrigerants typically used in large commercial systems.
2. Which refrigerants are considered high-pressure under EPA
regulations?
A) R-22 and R-410A
B) R-134a and R-404A
, C) R-12 and R-502
D) R-134a only
A) R-22 and R-410A
High-pressure refrigerants include those with a high boiling
point, commonly found in commercial systems like R-22 and R-
410A.
3. What tool is essential for verifying proper refrigerant recovery?
A) Thermometer
B) Vacuum pump
C) Recovery machine
D) Leak detector
C) Recovery machine
A recovery machine is used to safely remove refrigerant from a
system without releasing it into the atmosphere.
4. What is the minimum recovery requirement for non-condensing
appliances using high-pressure refrigerant?
A) 80% of the charge
B) 90% of the charge
C) 95% of the charge
D) 100% of the charge
A) 80% of the charge
, EPA regulations require recovering at least 80% of the
refrigerant in non-condensing appliances before opening the
system.
5. When working with high-pressure refrigerants, why is proper
personal protective equipment (PPE) important?
A) To improve efficiency
B) To prevent refrigerant exposure and frostbite
C) To avoid paperwork errors
D) To reduce noise
B) To prevent refrigerant exposure and frostbite
High-pressure refrigerants can cause skin burns or frostbite if
they come into direct contact with skin.
6. What must a Type III technician do before servicing a system?
A) Check the refrigerant type and charge
B) Verify system operation and pressures
C) Ensure recovery equipment is functional
D) All of the above
D) All of the above
Proper preparation ensures safe and effective service, prevents
leaks, and complies with EPA regulations.
, 7. Which gauge set color indicates high-pressure lines?
A) Red
B) Blue
C) Yellow
D) Green
A) Red
Red is universally used for high-pressure refrigerant lines to
prevent operator errors.
8. Which type of system is most commonly serviced by a Type III
technician?
A) Residential window AC units
B) Large commercial chillers
C) Automotive air conditioning
D) Household refrigerators
B) Large commercial chillers
Type III covers high-pressure systems often found in commercial
and industrial applications.
9. What should be done if a system is found to have insufficient
refrigerant during recovery?
A) Leave the system running
B) Add refrigerant immediately
