EPA 609 TECHNICIAN
CERTIFICATION EXAM REVIEW
WITH COMPLETE SOLUTION
1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - correct answer-
FALSE
2. For determining the Ozone Depletion Potential __________ having been assigned a
factor of 1 - correct answer-CFC-11
3. Ozone layer absorbs and scatters __________ form the sun - correct answer-
Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant - correct answer-TRUE
5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity -
correct answer-80%
6. T/F Ester-based synthetic oils can be mixed with oils - correct 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 - correct answer-
$10,000
8. MVAC systems being disposed must be evacuated to _____________ of mercury
before being scrapped - correct answer-4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or
imported into the United States - correct answer-JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants - correct answer-NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules -
correct answer-100,000
12. Lifetime of CFSs is believed to range from ________ years - correct answer-20 TO
100
, 13. Ozone molecules consists of _______________ atoms of oxygen - correct answer-
THREE
14.Non-condensables in a refrigeration system result in a ________________
discharge pressure - correct answer-higher
15. T/F Ozone depletion increases global warming - correct answer-TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a - correct
answer-FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA to establish requirements -
correct answer-1990
18. Over the road refrigeration units and R-22 (HCFC) air conditioning - correct answer-
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 -
correct answer-and intended to be returned to, a mobile air-conditioning system cannot
exceed ________________ PPM by weight, 15
20. At high temperature CFC-12 can decompose to form _____________ - correct
answer-hydrochloric or hydrofluoric acid
21. T/F Refrigerants are light than air - correct answer-FALSE
22. T/F Every refrigerant cylinder need not be protected by some type of pressure relief
device - correct answer-FALSE
23. Stratosphere layer consists of about ____________ of the available Ozone: -
correct answer-90%
24.CFC are highly reactive in _______________ of atmosphere - correct answer-lower
levels
25.HFC-134a is the refrigerant that replaced _____________ in automotive air
conditioning systems - correct answer-R-12
26. R-152 is a chemical compound of which of the following: - correct answer-
HYDROGEN AND FLUORINE
27. T/F R-134a a refrigerant does pose a cancer or birth defect hazard - correct answer-
FALSE
28. T/F MVAC systems need not be evacuated to a vacuum before servicing - correct
answer-FALSE
CERTIFICATION EXAM REVIEW
WITH COMPLETE SOLUTION
1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - correct answer-
FALSE
2. For determining the Ozone Depletion Potential __________ having been assigned a
factor of 1 - correct answer-CFC-11
3. Ozone layer absorbs and scatters __________ form the sun - correct answer-
Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant - correct answer-TRUE
5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity -
correct answer-80%
6. T/F Ester-based synthetic oils can be mixed with oils - correct 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 - correct answer-
$10,000
8. MVAC systems being disposed must be evacuated to _____________ of mercury
before being scrapped - correct answer-4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or
imported into the United States - correct answer-JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants - correct answer-NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules -
correct answer-100,000
12. Lifetime of CFSs is believed to range from ________ years - correct answer-20 TO
100
, 13. Ozone molecules consists of _______________ atoms of oxygen - correct answer-
THREE
14.Non-condensables in a refrigeration system result in a ________________
discharge pressure - correct answer-higher
15. T/F Ozone depletion increases global warming - correct answer-TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a - correct
answer-FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA to establish requirements -
correct answer-1990
18. Over the road refrigeration units and R-22 (HCFC) air conditioning - correct answer-
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 -
correct answer-and intended to be returned to, a mobile air-conditioning system cannot
exceed ________________ PPM by weight, 15
20. At high temperature CFC-12 can decompose to form _____________ - correct
answer-hydrochloric or hydrofluoric acid
21. T/F Refrigerants are light than air - correct answer-FALSE
22. T/F Every refrigerant cylinder need not be protected by some type of pressure relief
device - correct answer-FALSE
23. Stratosphere layer consists of about ____________ of the available Ozone: -
correct answer-90%
24.CFC are highly reactive in _______________ of atmosphere - correct answer-lower
levels
25.HFC-134a is the refrigerant that replaced _____________ in automotive air
conditioning systems - correct answer-R-12
26. R-152 is a chemical compound of which of the following: - correct answer-
HYDROGEN AND FLUORINE
27. T/F R-134a a refrigerant does pose a cancer or birth defect hazard - correct answer-
FALSE
28. T/F MVAC systems need not be evacuated to a vacuum before servicing - correct
answer-FALSE
