Practice Exam Questions And Correct

EPA Section 608 Type II Certification Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• 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.

• What is considered a "high-pressure" refrigerant under EPA

definitions?

a) R-11 1 / 4

b) R-22

c) R-123

d) R-500

Rationale: R-22 operates at high pressures, classifying it as a high-

pressure refrigerant.

• 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.

• 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.

• Which recovery equipment must be used for appliances with

hermetically sealed compressors?

a) System-dependent only

b) Self-contained recovery equipment 2 / 4

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.

• 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.

• 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.

• What is the minimum vacuum level required for recovering refrigerant

from a high-pressure appliance using recovery equipment manufactured after November 15, 1993?

• 0 inches of Hg 3 / 4

• 5 inches of Hg
• 10 inches of Hg
• 15 inches of Hg

Rationale: Post-1993 recovery units must reach at least 10 inches of

vacuum for high-pressure appliances.

• 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.

• 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.

• What must be done before opening any refrigeration system?

a) Drain the oil

b) Replace all filters

• / 4