1 | Page
EPA 609 Technician Certification
Questions and Answers Latest 2026
1. T/F Ozone at ground level ans at Stratosphere is a
harmful pollutant Ans: FALSE
2. For determining the Ozone Depletion Potential
__________ having been assigned a factor of 1 Ans: CFC-
11
3. Ozone layer absorbs and scatters __________ form the
sun Ans: Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant Ans: TRUE
5. a refillable refrigerant cylinder must not be filled above
_________ of its full capacity Ans: 80%
6. T/F Ester-based synthetic oils can be mixed with oils
Ans: FALSE
7. An award of up to ___________ may be paid to a person
suppplying information that leads to a penalty against a
technician who is intentially venting Ans: $10,000
8. MVAC systems being disposed must be evacuated to
_____________ of mercury before being scrapped Ans: 4
INCHES
© 2025 All rights reserved
, 2 | Page
9. Since _______________ it is no longer legal for CFCs to
be manufactured or imported into the United States Ans:
JAN 1ST, 1996
10. Since ___________________ it is illegal to vent
substitutes for CFC and HCFC refrigerants Ans: NOV 15,
1995
11. Each chlorine ion are able to destroy
___________________ ozone molecules Ans: 100,000
12. Lifetime of CFSs is believed to range from ________
years Ans: 20 TO 100
13. Ozone molecules consists of _______________ atoms of
oxygen Ans: THREE
14.Non-condensables in a refrigeration system result in a
________________ discharge pressure Ans: higher
15. T/F Ozone depletion increases global warming Ans:
TRUE
16. T/F If a technician is already trained and certified to
handle HFC-134a Ans: FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA
to establish requirements Ans: 1990
18. Over the road refrigeration units and R-22 (HCFC) air
conditioning Ans: such as that found in buses, also
require Section ____________ certification, 608
© 2025 All rights reserved
EPA 609 Technician Certification
Questions and Answers Latest 2026
1. T/F Ozone at ground level ans at Stratosphere is a
harmful pollutant Ans: FALSE
2. For determining the Ozone Depletion Potential
__________ having been assigned a factor of 1 Ans: CFC-
11
3. Ozone layer absorbs and scatters __________ form the
sun Ans: Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant Ans: TRUE
5. a refillable refrigerant cylinder must not be filled above
_________ of its full capacity Ans: 80%
6. T/F Ester-based synthetic oils can be mixed with oils
Ans: FALSE
7. An award of up to ___________ may be paid to a person
suppplying information that leads to a penalty against a
technician who is intentially venting Ans: $10,000
8. MVAC systems being disposed must be evacuated to
_____________ of mercury before being scrapped Ans: 4
INCHES
© 2025 All rights reserved
, 2 | Page
9. Since _______________ it is no longer legal for CFCs to
be manufactured or imported into the United States Ans:
JAN 1ST, 1996
10. Since ___________________ it is illegal to vent
substitutes for CFC and HCFC refrigerants Ans: NOV 15,
1995
11. Each chlorine ion are able to destroy
___________________ ozone molecules Ans: 100,000
12. Lifetime of CFSs is believed to range from ________
years Ans: 20 TO 100
13. Ozone molecules consists of _______________ atoms of
oxygen Ans: THREE
14.Non-condensables in a refrigeration system result in a
________________ discharge pressure Ans: higher
15. T/F Ozone depletion increases global warming Ans:
TRUE
16. T/F If a technician is already trained and certified to
handle HFC-134a Ans: FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA
to establish requirements Ans: 1990
18. Over the road refrigeration units and R-22 (HCFC) air
conditioning Ans: such as that found in buses, also
require Section ____________ certification, 608
© 2025 All rights reserved
