EPA 609 PRACTICE EXAM 2025
QUESTIONS AND ANSWERS
R-134a is a chlorine-free refrigerant - ANS True
Ozone layer absorbs and scatters ________ from the sun - ANS ultraviolet light
For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 -
ANS CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - ANS 80%
Ozone at ground level and at Stratosphere is a harmful pollutant - ANS False
Each chlorine ion can able to destroy ______ ozone molecules - ANS 100,000
Lifetime of CFCs is believed to range from _____ years - ANS 20-100
An award of up to ______ may be paid to a person supplying information that leads to a
penalty against a technician who is intentionally venting. - ANS $10,000
Ester-based synthetic oils can be mixed with other oils - ANS False
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - ANS Nov 15, 1995
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, MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped -
ANS 4 inches
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United
States - ANS Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release
of ozone depleting substances. - ANS 1990
At high temperatures, CFC-12 can decompose to form _______ - ANS hydrochloric and
hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - ANS three
CFCs are highly reactive in _____ of atmosphere - ANS lower
Non-condensables in a refrigeration system result in a _______ discharge pressure -
ANS higher
Moisture level in Recycled R-12 (CFC-12) that has been directly removed from, and intended to
be returned to, a mobile air-conditioning system cannot exceed _______ PPM by weight. -
ANS 15
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses,
also requires Section ______ certification - ANS 608
Ozone depletion increases global warming - ANS True
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QUESTIONS AND ANSWERS
R-134a is a chlorine-free refrigerant - ANS True
Ozone layer absorbs and scatters ________ from the sun - ANS ultraviolet light
For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 -
ANS CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - ANS 80%
Ozone at ground level and at Stratosphere is a harmful pollutant - ANS False
Each chlorine ion can able to destroy ______ ozone molecules - ANS 100,000
Lifetime of CFCs is believed to range from _____ years - ANS 20-100
An award of up to ______ may be paid to a person supplying information that leads to a
penalty against a technician who is intentionally venting. - ANS $10,000
Ester-based synthetic oils can be mixed with other oils - ANS False
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - ANS Nov 15, 1995
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
, MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped -
ANS 4 inches
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United
States - ANS Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release
of ozone depleting substances. - ANS 1990
At high temperatures, CFC-12 can decompose to form _______ - ANS hydrochloric and
hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - ANS three
CFCs are highly reactive in _____ of atmosphere - ANS lower
Non-condensables in a refrigeration system result in a _______ discharge pressure -
ANS higher
Moisture level in Recycled R-12 (CFC-12) that has been directly removed from, and intended to
be returned to, a mobile air-conditioning system cannot exceed _______ PPM by weight. -
ANS 15
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses,
also requires Section ______ certification - ANS 608
Ozone depletion increases global warming - ANS True
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
