EPA SECTION 608 TYPE II CERTIFICATION
EXAM QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What type of appliances does EPA Section 608 Type II certification cover?
A. Small appliances only
B. High-pressure appliances
C. Low-pressure appliances
D. Motor vehicle AC systems
Rationale: Type II certification applies to high-pressure appliances such as
residential and commercial AC and refrigeration systems.
2. Which refrigerant is classified as a high-pressure refrigerant?
A. R-11
B. R-123
C. R-410A
D. R-113
Rationale: R-410A operates at high pressures and is commonly used in
modern air conditioning systems.
3. What is the EPA-required recovery level for high-pressure appliances with
more than 200 lbs of refrigerant when using recovery equipment
manufactured after Nov. 15, 1993?
A. 0 psig
B. 10 inches Hg vacuum
C. 10 inches Hg vacuum
D. 15 inches Hg vacuum
, Rationale: EPA requires evacuation to 10 inches Hg vacuum for large high-
pressure appliances using newer recovery equipment.
4. What must be done before opening an appliance for service?
A. Leak test only
B. Add refrigerant
C. Recover refrigerant to required level
D. Flush system
Rationale: Refrigerant must be recovered to EPA-mandated levels before
opening a system.
5. Which refrigerant has the highest ozone depletion potential (ODP)?
A. R-134a
B. R-410A
C. R-22
D. R-404A
Rationale: R-22 is an HCFC with ozone depletion potential, unlike HFCs.
6. What is the primary purpose of refrigerant recovery?
A. Improve efficiency
B. Protect the ozone layer
C. Reduce operating cost
D. Increase cooling capacity
Rationale: Recovery prevents refrigerant venting, protecting the ozone
layer.
7. Which device prevents refrigerant from venting during hose removal?
A. Manifold gauge
B. Sight glass
C. Low-loss fitting
D. Thermocouple
Rationale: Low-loss fittings minimize refrigerant emissions when
disconnecting hoses.
8. When is it acceptable to vent refrigerant?
A. During maintenance
B. During installation
C. When pressure is low
, D. Never
Rationale: EPA regulations strictly prohibit venting refrigerants.
9. Which refrigerant is an HFC?
A. R-12
B. R-22
C. R-134a
D. R-11
Rationale: R-134a is an HFC with zero ozone depletion potential.
10.What safety concern is associated with R-410A?
A. Toxicity
B. High operating pressure
C. Flammability
D. Corrosiveness
Rationale: R-410A operates at much higher pressures than R-22.
11.Which component protects a system from excessive pressure?
A. Filter-drier
B. Thermostat
C. Pressure relief valve
D. Expansion valve
Rationale: Pressure relief devices prevent system rupture due to
overpressure.
12.What should be done if a system has a major refrigerant leak?
A. Recharge immediately
B. Add sealant
C. Repair leak before charging
D. Increase airflow
Rationale: EPA requires leak repair before recharging systems.
13.Which leak detection method is most sensitive?
A. Soap bubbles
B. Ultrasonic
C. Electronic leak detector
EXAM QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What type of appliances does EPA Section 608 Type II certification cover?
A. Small appliances only
B. High-pressure appliances
C. Low-pressure appliances
D. Motor vehicle AC systems
Rationale: Type II certification applies to high-pressure appliances such as
residential and commercial AC and refrigeration systems.
2. Which refrigerant is classified as a high-pressure refrigerant?
A. R-11
B. R-123
C. R-410A
D. R-113
Rationale: R-410A operates at high pressures and is commonly used in
modern air conditioning systems.
3. What is the EPA-required recovery level for high-pressure appliances with
more than 200 lbs of refrigerant when using recovery equipment
manufactured after Nov. 15, 1993?
A. 0 psig
B. 10 inches Hg vacuum
C. 10 inches Hg vacuum
D. 15 inches Hg vacuum
, Rationale: EPA requires evacuation to 10 inches Hg vacuum for large high-
pressure appliances using newer recovery equipment.
4. What must be done before opening an appliance for service?
A. Leak test only
B. Add refrigerant
C. Recover refrigerant to required level
D. Flush system
Rationale: Refrigerant must be recovered to EPA-mandated levels before
opening a system.
5. Which refrigerant has the highest ozone depletion potential (ODP)?
A. R-134a
B. R-410A
C. R-22
D. R-404A
Rationale: R-22 is an HCFC with ozone depletion potential, unlike HFCs.
6. What is the primary purpose of refrigerant recovery?
A. Improve efficiency
B. Protect the ozone layer
C. Reduce operating cost
D. Increase cooling capacity
Rationale: Recovery prevents refrigerant venting, protecting the ozone
layer.
7. Which device prevents refrigerant from venting during hose removal?
A. Manifold gauge
B. Sight glass
C. Low-loss fitting
D. Thermocouple
Rationale: Low-loss fittings minimize refrigerant emissions when
disconnecting hoses.
8. When is it acceptable to vent refrigerant?
A. During maintenance
B. During installation
C. When pressure is low
, D. Never
Rationale: EPA regulations strictly prohibit venting refrigerants.
9. Which refrigerant is an HFC?
A. R-12
B. R-22
C. R-134a
D. R-11
Rationale: R-134a is an HFC with zero ozone depletion potential.
10.What safety concern is associated with R-410A?
A. Toxicity
B. High operating pressure
C. Flammability
D. Corrosiveness
Rationale: R-410A operates at much higher pressures than R-22.
11.Which component protects a system from excessive pressure?
A. Filter-drier
B. Thermostat
C. Pressure relief valve
D. Expansion valve
Rationale: Pressure relief devices prevent system rupture due to
overpressure.
12.What should be done if a system has a major refrigerant leak?
A. Recharge immediately
B. Add sealant
C. Repair leak before charging
D. Increase airflow
Rationale: EPA requires leak repair before recharging systems.
13.Which leak detection method is most sensitive?
A. Soap bubbles
B. Ultrasonic
C. Electronic leak detector
