EPA 609 CERTIFICATION EXAM 110+ QUESTIONS &
CORRECT ANSWERS LATEST 2025
1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - ANSWER-
FALSE
2. For determining the Ozone Depletion Potential __________ having been
assigned a factor of 1 - ANSWER-CFC-11
3. Ozone layer absorbs and scatters __________ form the sun - ANSWER-
Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant - ANSWER-TRUE
5. a refillable refrigerant cylinder must not be filled above _________ of its full
capacity - ANSWER-80%
6. T/F Ester-based synthetic oils can be mixed with oils - ANSWER-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 -
ANSWER-$10,000
, 8. MVAC systems being disposed must be evacuated to _____________ of
mercury before being scrapped - ANSWER-4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or
imported into the United States - ANSWER-JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants - ANSWER-NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules
- ANSWER-100,000
12. Lifetime of CFSs is believed to range from ________ years - ANSWER-20 TO
100
13. Ozone molecules consists of _______________ atoms of oxygen - ANSWER-
THREE
14.Non-condensables in a refrigeration system result in a ________________
discharge pressure - ANSWER-higher
15. T/F Ozone depletion increases global warming - ANSWER-TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a -
ANSWER-FALSE
CORRECT ANSWERS LATEST 2025
1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - ANSWER-
FALSE
2. For determining the Ozone Depletion Potential __________ having been
assigned a factor of 1 - ANSWER-CFC-11
3. Ozone layer absorbs and scatters __________ form the sun - ANSWER-
Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant - ANSWER-TRUE
5. a refillable refrigerant cylinder must not be filled above _________ of its full
capacity - ANSWER-80%
6. T/F Ester-based synthetic oils can be mixed with oils - ANSWER-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 -
ANSWER-$10,000
, 8. MVAC systems being disposed must be evacuated to _____________ of
mercury before being scrapped - ANSWER-4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or
imported into the United States - ANSWER-JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants - ANSWER-NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules
- ANSWER-100,000
12. Lifetime of CFSs is believed to range from ________ years - ANSWER-20 TO
100
13. Ozone molecules consists of _______________ atoms of oxygen - ANSWER-
THREE
14.Non-condensables in a refrigeration system result in a ________________
discharge pressure - ANSWER-higher
15. T/F Ozone depletion increases global warming - ANSWER-TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a -
ANSWER-FALSE
