EPA Section 608 Type II Certification
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1. Which type of equipment does EPA Type II certification cover?
a) Small appliances
b) High-pressure and very high-pressure appliances, except MVACs
c) Low-pressure chillers only
d) Motor vehicle air conditioning systems
Rationale: Type II covers high and very high-pressure appliances such
as split systems and rooftop units.
2. What is considered a "high-pressure" refrigerant under EPA
definitions?
a) R-11
, b) R-22
c) R-123
d) R-500
Rationale: R-22 operates at high pressures, classifying it as a high-
pressure refrigerant.
3. Which refrigerant is a CFC commonly used in older systems?
a) R-12
b) R-22
c) R-134a
d) R-410A
Rationale: R-12 is a CFC historically used before being phased out for
ozone depletion.
4. What is the primary reason for the EPA requiring refrigerant recovery?
a) To reduce energy costs
b) To protect the ozone layer
c) To prevent compressor damage
d) To meet OSHA regulations
Rationale: EPA’s refrigerant recovery rules aim to reduce ozone-
depleting emissions.
5. Which recovery equipment must be used for appliances with
hermetically sealed compressors?
a) System-dependent only
b) Self-contained recovery equipment
, c) Passive recovery only
d) Any pump with a filter dryer
Rationale: Self-contained recovery units are required for appliances
with hermetically sealed compressors under EPA rules.
6. What must technicians do before disposing of an appliance containing
refrigerant?
a) Vent the refrigerant
b) Label the appliance
c) Recover all refrigerant to EPA-mandated levels
d) Flush with nitrogen
Rationale: EPA regulations require full recovery before disposal to
prevent venting.
7. When servicing a system with R-410A, which type of oil is used?
a) Mineral oil
b) Alkylbenzene oil
c) POE (polyolester) oil
d) PAG oil
Rationale: R-410A systems use POE oil, which is compatible with HFC
refrigerants.
8. What is the minimum vacuum level required for recovering refrigerant
from a high-pressure appliance using recovery equipment
manufactured after November 15, 1993?
a) 0 inches of Hg
, b) 5 inches of Hg
c) 10 inches of Hg
d) 15 inches of Hg
Rationale: Post-1993 recovery units must reach at least 10 inches of
vacuum for high-pressure appliances.
9. What should a technician do if a system is suspected to have a major
leak before recovery?
a) Start recovery immediately
b) Pressurize with nitrogen to find the leak
c) Add refrigerant for leak testing
d) Flush with water
Rationale: Nitrogen pressure testing is used to locate leaks without
adding refrigerant to the atmosphere.
10. What is the primary component of R-410A?
a) R-22
b) A blend of R-32 and R-125
c) R-134a
d) R-500
Rationale: R-410A is a 50/50 zeotropic blend of R-32 and R-125.
11. What must be done before opening any refrigeration system?
a) Drain the oil
b) Replace all filters
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which type of equipment does EPA Type II certification cover?
a) Small appliances
b) High-pressure and very high-pressure appliances, except MVACs
c) Low-pressure chillers only
d) Motor vehicle air conditioning systems
Rationale: Type II covers high and very high-pressure appliances such
as split systems and rooftop units.
2. What is considered a "high-pressure" refrigerant under EPA
definitions?
a) R-11
, b) R-22
c) R-123
d) R-500
Rationale: R-22 operates at high pressures, classifying it as a high-
pressure refrigerant.
3. Which refrigerant is a CFC commonly used in older systems?
a) R-12
b) R-22
c) R-134a
d) R-410A
Rationale: R-12 is a CFC historically used before being phased out for
ozone depletion.
4. What is the primary reason for the EPA requiring refrigerant recovery?
a) To reduce energy costs
b) To protect the ozone layer
c) To prevent compressor damage
d) To meet OSHA regulations
Rationale: EPA’s refrigerant recovery rules aim to reduce ozone-
depleting emissions.
5. Which recovery equipment must be used for appliances with
hermetically sealed compressors?
a) System-dependent only
b) Self-contained recovery equipment
, c) Passive recovery only
d) Any pump with a filter dryer
Rationale: Self-contained recovery units are required for appliances
with hermetically sealed compressors under EPA rules.
6. What must technicians do before disposing of an appliance containing
refrigerant?
a) Vent the refrigerant
b) Label the appliance
c) Recover all refrigerant to EPA-mandated levels
d) Flush with nitrogen
Rationale: EPA regulations require full recovery before disposal to
prevent venting.
7. When servicing a system with R-410A, which type of oil is used?
a) Mineral oil
b) Alkylbenzene oil
c) POE (polyolester) oil
d) PAG oil
Rationale: R-410A systems use POE oil, which is compatible with HFC
refrigerants.
8. What is the minimum vacuum level required for recovering refrigerant
from a high-pressure appliance using recovery equipment
manufactured after November 15, 1993?
a) 0 inches of Hg
, b) 5 inches of Hg
c) 10 inches of Hg
d) 15 inches of Hg
Rationale: Post-1993 recovery units must reach at least 10 inches of
vacuum for high-pressure appliances.
9. What should a technician do if a system is suspected to have a major
leak before recovery?
a) Start recovery immediately
b) Pressurize with nitrogen to find the leak
c) Add refrigerant for leak testing
d) Flush with water
Rationale: Nitrogen pressure testing is used to locate leaks without
adding refrigerant to the atmosphere.
10. What is the primary component of R-410A?
a) R-22
b) A blend of R-32 and R-125
c) R-134a
d) R-500
Rationale: R-410A is a 50/50 zeotropic blend of R-32 and R-125.
11. What must be done before opening any refrigeration system?
a) Drain the oil
b) Replace all filters
