EPA Section 608 Universal Certification Exam
practice test with 100 questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What does the “608” in EPA Section 608 refer to?
A) The number of refrigerants covered
B) The section of the Clean Air Act that regulates refrigerants
C) The number of technician licenses issued
D) The type of equipment tested
Rationale: Section 608 of the Clean Air Act specifically regulates
the handling and disposal of refrigerants.
2. Which of the following technicians must be certified under EPA
Section 608?
A) Only residential AC installers
B) Only commercial HVAC installers
C) Anyone who maintains, services, repairs, or disposes of
appliances containing refrigerants
D) Only technicians working with CFCs
Rationale: Universal certification applies to all technicians
handling refrigerants in any appliance.
3. Which type of refrigerants are covered under the EPA Section 608
program?
A) Only CFCs
B) Only HCFCs
, C) Only HFCs
D) All ozone-depleting and substitute refrigerants
Rationale: Section 608 covers CFCs, HCFCs, HFCs, and blends,
including substitutes like HFOs.
4. What is the maximum allowable refrigerant leak rate for
commercial systems using high-pressure refrigerants for
certification purposes?
A) 5% per year
B) 10% per year
C) 15% per year
D) 20% per year
Rationale: For commercial high-pressure systems, EPA allows a
maximum 15% annual leak rate before repairs are required.
5. Which of the following best describes “Type I” certification?
A) Certification for small appliances containing 5 pounds or less
of refrigerant
B) Certification for high-pressure systems
C) Certification for recovery only
D) Certification for industrial refrigeration
Rationale: Type I is for technicians working with small appliances
(≤5 lbs). Universal certification includes all types.
6. What is the primary purpose of refrigerant recovery?
A) To improve system efficiency
B) To prevent the release of ozone-depleting substances into the
atmosphere
C) To reduce energy costs
D) To increase refrigerant charge
, Rationale: Recovery ensures that refrigerants are not vented,
protecting the environment.
7. Which of the following is required before opening a system for
service?
A) No requirements
B) Recover the refrigerant to the required level using approved
equipment
C) Vent refrigerant into the atmosphere
D) Only drain oil
Rationale: EPA regulations require recovery of refrigerants prior
to servicing appliances.
8. Which of the following tools is used to detect leaks in refrigerant
systems?
A) Manifold gauge only
B) Thermometer
C) Electronic leak detector
D) Hydrometer
Rationale: Leak detectors are specifically designed to sense
refrigerant leaks accurately.
9. What is the proper disposal method for recovered refrigerant?
A) Release into the atmosphere
B) Mix with other chemicals
C) Send to EPA-approved recycling or reclamation facility
D) Burn in open air
Rationale: EPA mandates that recovered refrigerants be sent to
approved facilities to prevent environmental harm.
practice test with 100 questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What does the “608” in EPA Section 608 refer to?
A) The number of refrigerants covered
B) The section of the Clean Air Act that regulates refrigerants
C) The number of technician licenses issued
D) The type of equipment tested
Rationale: Section 608 of the Clean Air Act specifically regulates
the handling and disposal of refrigerants.
2. Which of the following technicians must be certified under EPA
Section 608?
A) Only residential AC installers
B) Only commercial HVAC installers
C) Anyone who maintains, services, repairs, or disposes of
appliances containing refrigerants
D) Only technicians working with CFCs
Rationale: Universal certification applies to all technicians
handling refrigerants in any appliance.
3. Which type of refrigerants are covered under the EPA Section 608
program?
A) Only CFCs
B) Only HCFCs
, C) Only HFCs
D) All ozone-depleting and substitute refrigerants
Rationale: Section 608 covers CFCs, HCFCs, HFCs, and blends,
including substitutes like HFOs.
4. What is the maximum allowable refrigerant leak rate for
commercial systems using high-pressure refrigerants for
certification purposes?
A) 5% per year
B) 10% per year
C) 15% per year
D) 20% per year
Rationale: For commercial high-pressure systems, EPA allows a
maximum 15% annual leak rate before repairs are required.
5. Which of the following best describes “Type I” certification?
A) Certification for small appliances containing 5 pounds or less
of refrigerant
B) Certification for high-pressure systems
C) Certification for recovery only
D) Certification for industrial refrigeration
Rationale: Type I is for technicians working with small appliances
(≤5 lbs). Universal certification includes all types.
6. What is the primary purpose of refrigerant recovery?
A) To improve system efficiency
B) To prevent the release of ozone-depleting substances into the
atmosphere
C) To reduce energy costs
D) To increase refrigerant charge
, Rationale: Recovery ensures that refrigerants are not vented,
protecting the environment.
7. Which of the following is required before opening a system for
service?
A) No requirements
B) Recover the refrigerant to the required level using approved
equipment
C) Vent refrigerant into the atmosphere
D) Only drain oil
Rationale: EPA regulations require recovery of refrigerants prior
to servicing appliances.
8. Which of the following tools is used to detect leaks in refrigerant
systems?
A) Manifold gauge only
B) Thermometer
C) Electronic leak detector
D) Hydrometer
Rationale: Leak detectors are specifically designed to sense
refrigerant leaks accurately.
9. What is the proper disposal method for recovered refrigerant?
A) Release into the atmosphere
B) Mix with other chemicals
C) Send to EPA-approved recycling or reclamation facility
D) Burn in open air
Rationale: EPA mandates that recovered refrigerants be sent to
approved facilities to prevent environmental harm.
