EPA Section 609 Certification Practice Questions
2026 | Exam Prep PDF | Graded A+
1. What is the date after which the manufacture or import of CFCs became
illegal in the United States?
January 1, 2000
January 1, 1992
January 1, 1989
January 1, 1996
2. The proper method of discarding a disposable refrigerant cylinder is to:
refill the cylinder a second time at an approved facility.
giving the cylinder to a friend to be used as a compressed air tank.
assure that all refrigerant is recovered and that the cylinder is
rendered useless, then recycle the metal.
bleed refrigerant to ambient and throw the cylinder into a commercial
trash dumpster
3. Cylinders used for recovered refrigerants must be pressure tested every:
three years.
six months.
five years.
year.
4. What date marks the beginning of the prohibition against venting substitutes
for CFC and HCFC refrigerants?
, December 31, 1999
July 1, 1992
January 1, 2000
November 15, 1995
5. Discuss the significance of maintaining a specific moisture level in recycled
refrigerants like R-12 (CFC-12) and its impact on system performance.
Higher moisture levels can improve refrigerant efficiency.
Maintaining a specific moisture level in recycled refrigerants like R-
12 is crucial to prevent corrosion and ensure efficient system
performance.
Moisture levels do not affect refrigerant performance.
Moisture levels are only a concern during the initial filling of the
system.
6. At high temperatures, what do CFCs and HCFCs decompose to?
Hydrocarbon and hydrofluorocarbons
All of these
Hydrochloric and hydrofluoric acids
Chloric and fluoric acids
7. If the ozone layer were to be significantly depleted, what would be a likely
consequence for ecosystems on Earth?
Enhanced photosynthesis in plants
Decreased temperatures globally
Reduction in greenhouse gas emissions
, Increased UV radiation exposure
8. Which element is absent in the chemical composition of R-152a refrigerant?
Fluorine
Carbon
Hydrogen
Chlorine
9. A violation of the Clean Air Act, including improper record keeping, is subject
to a penalty of a fine of up to per day per violation:
$37,500
$24,000
$40,000
$35,000
10. If a technician is evaluating refrigerants for a new HVAC system, why might
they prefer R-152a over CFCs?
Because R-152a does not contain chlorine and has a lower impact
on ozone depletion.
Because R-152a has a higher global warming potential than CFCs.
Because R-152a is cheaper than CFCs.
Because R-152a is easier to obtain than CFCs.
11. What is one of the decomposition products of CFC-12 at high temperatures?
Nitrogen oxides
Ozone
, Carbon dioxide
Hydrochloric acid
12. Describe the role of the ozone layer in relation to environmental protection.
The ozone layer protects life on Earth by absorbing harmful
ultraviolet (UV) radiation from the sun.
The ozone layer contributes to greenhouse gas emissions.
The ozone layer facilitates the formation of clouds.
The ozone layer is responsible for weather patterns.
13. If a new refrigerant is developed with an Ozone Depletion Potential of 0.2,
how would this impact its regulatory status compared to HFC-134a?
It may face stricter regulations due to its higher ODP compared to
HFC-134a.
It would be exempt from regulations because it has an ODP less than
1.
It would be encouraged for use due to its lower environmental
impact.
It would be treated the same as HFC-134a since both have low ODP.
14. It is the owners responsibility to maintain records of any and all refrigerant
that is added to a system that contains _____ pound or more of refrigerant.
20
50
15
35
2026 | Exam Prep PDF | Graded A+
1. What is the date after which the manufacture or import of CFCs became
illegal in the United States?
January 1, 2000
January 1, 1992
January 1, 1989
January 1, 1996
2. The proper method of discarding a disposable refrigerant cylinder is to:
refill the cylinder a second time at an approved facility.
giving the cylinder to a friend to be used as a compressed air tank.
assure that all refrigerant is recovered and that the cylinder is
rendered useless, then recycle the metal.
bleed refrigerant to ambient and throw the cylinder into a commercial
trash dumpster
3. Cylinders used for recovered refrigerants must be pressure tested every:
three years.
six months.
five years.
year.
4. What date marks the beginning of the prohibition against venting substitutes
for CFC and HCFC refrigerants?
, December 31, 1999
July 1, 1992
January 1, 2000
November 15, 1995
5. Discuss the significance of maintaining a specific moisture level in recycled
refrigerants like R-12 (CFC-12) and its impact on system performance.
Higher moisture levels can improve refrigerant efficiency.
Maintaining a specific moisture level in recycled refrigerants like R-
12 is crucial to prevent corrosion and ensure efficient system
performance.
Moisture levels do not affect refrigerant performance.
Moisture levels are only a concern during the initial filling of the
system.
6. At high temperatures, what do CFCs and HCFCs decompose to?
Hydrocarbon and hydrofluorocarbons
All of these
Hydrochloric and hydrofluoric acids
Chloric and fluoric acids
7. If the ozone layer were to be significantly depleted, what would be a likely
consequence for ecosystems on Earth?
Enhanced photosynthesis in plants
Decreased temperatures globally
Reduction in greenhouse gas emissions
, Increased UV radiation exposure
8. Which element is absent in the chemical composition of R-152a refrigerant?
Fluorine
Carbon
Hydrogen
Chlorine
9. A violation of the Clean Air Act, including improper record keeping, is subject
to a penalty of a fine of up to per day per violation:
$37,500
$24,000
$40,000
$35,000
10. If a technician is evaluating refrigerants for a new HVAC system, why might
they prefer R-152a over CFCs?
Because R-152a does not contain chlorine and has a lower impact
on ozone depletion.
Because R-152a has a higher global warming potential than CFCs.
Because R-152a is cheaper than CFCs.
Because R-152a is easier to obtain than CFCs.
11. What is one of the decomposition products of CFC-12 at high temperatures?
Nitrogen oxides
Ozone
, Carbon dioxide
Hydrochloric acid
12. Describe the role of the ozone layer in relation to environmental protection.
The ozone layer protects life on Earth by absorbing harmful
ultraviolet (UV) radiation from the sun.
The ozone layer contributes to greenhouse gas emissions.
The ozone layer facilitates the formation of clouds.
The ozone layer is responsible for weather patterns.
13. If a new refrigerant is developed with an Ozone Depletion Potential of 0.2,
how would this impact its regulatory status compared to HFC-134a?
It may face stricter regulations due to its higher ODP compared to
HFC-134a.
It would be exempt from regulations because it has an ODP less than
1.
It would be encouraged for use due to its lower environmental
impact.
It would be treated the same as HFC-134a since both have low ODP.
14. It is the owners responsibility to maintain records of any and all refrigerant
that is added to a system that contains _____ pound or more of refrigerant.
20
50
15
35
