1|Page:2024/2025GradeA +
EPA 609 Technician Certification Questions
and Correct Answers & Latest Updated
1. T/F R-134 is a chlorine-free refrigerant
o :## TRUE
2. a refillable refrigerant cylinder must not be filled above _________ of its full capacity
o :## 80%
3. T/F Ester-based synthetic oils can be mixed with oils
o :## FALSE
4. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant
o :## FALSE
5. For determining the Ozone Depletion Potential __________ having been assigned a
factor of 1
o :## CFC-11
6. Ozone layer absorbs and scatters __________ form the sun
o :## Ultraviolet light
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
,2|Page:2024/2025GradeA +
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
o :## $10,000
8. MVAC systems being disposed must be evacuated to _____________ of mercury before
being scrapped
o :## 4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or imported
into the United States
o :## JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants
o :## NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules
o :## 100,000
12. Lifetime of CFSs is believed to range from ________ years
o :## 20 TO 100
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
, 3|Page:2024/2025GradeA +
13. Ozone molecules consists of _______________ atoms of oxygen
o :## THREE
14.Non-condensables in a refrigeration system result in a ________________ discharge
pressure
o :## higher
15. T/F Ozone depletion increases global warming
o :## TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a
o :## FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA to establish requirements
o :## 1990
18. Over the road refrigeration units and R-22 (HCFC) air conditioning
o :## such as that found in buses, also require Section ____________ certification, 608
19. Moisture level in Recycled R-12(CFC-12) that has been directly removed from
o :## and intended to be returned to, a mobile air-conditioning system cannot exceed
________________ PPM by weight, 15
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
EPA 609 Technician Certification Questions
and Correct Answers & Latest Updated
1. T/F R-134 is a chlorine-free refrigerant
o :## TRUE
2. a refillable refrigerant cylinder must not be filled above _________ of its full capacity
o :## 80%
3. T/F Ester-based synthetic oils can be mixed with oils
o :## FALSE
4. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant
o :## FALSE
5. For determining the Ozone Depletion Potential __________ having been assigned a
factor of 1
o :## CFC-11
6. Ozone layer absorbs and scatters __________ form the sun
o :## Ultraviolet light
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
,2|Page:2024/2025GradeA +
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
o :## $10,000
8. MVAC systems being disposed must be evacuated to _____________ of mercury before
being scrapped
o :## 4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or imported
into the United States
o :## JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants
o :## NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules
o :## 100,000
12. Lifetime of CFSs is believed to range from ________ years
o :## 20 TO 100
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
, 3|Page:2024/2025GradeA +
13. Ozone molecules consists of _______________ atoms of oxygen
o :## THREE
14.Non-condensables in a refrigeration system result in a ________________ discharge
pressure
o :## higher
15. T/F Ozone depletion increases global warming
o :## TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a
o :## FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA to establish requirements
o :## 1990
18. Over the road refrigeration units and R-22 (HCFC) air conditioning
o :## such as that found in buses, also require Section ____________ certification, 608
19. Moisture level in Recycled R-12(CFC-12) that has been directly removed from
o :## and intended to be returned to, a mobile air-conditioning system cannot exceed
________________ PPM by weight, 15
Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update
