EPA SECTION 609 EXAM AND PRACTICE EXAM
NEWEST 2024-2025 QUESTIONS AND CORRECT
ANSWERS
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - CORRECT
ANSWER✅✅✅80%
Ozone layer absorbs and scatters ________ from the sun - CORRECT
ANSWER✅✅✅Ultraviolet light
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. - CORRECT ANSWER✅✅✅$10,000
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United
States - CORRECT ANSWER✅✅✅Jan 1, 1996
R-134a is a chlorine-free refrigerant - CORRECT ANSWER✅✅✅True
MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped -
CORRECT ANSWER✅✅✅4 inches
Ozone at ground level and at Stratosphere is a harmful pollutant - CORRECT
ANSWER✅✅✅False
Each chlorine ion can able to destroy ______ ozone molecules - CORRECT
ANSWER✅✅✅100,000
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - CORRECT
ANSWER✅✅✅Nov 15, 1995
, For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 -
CORRECT ANSWER✅✅✅CFC-11
Ester-based synthetic oils can be mixed with other oils - CORRECT ANSWER✅✅✅False
Lifetime of CFCs is believed to range from _____ years - CORRECT ANSWER✅✅✅20-
100
CFCs are highly reactive in _____ of atmosphere - CORRECT ANSWER✅✅✅lower levels
At high temperaturesCFC-12 can decompose to form _______ - CORRECT
ANSWER✅✅✅hydrofluoric acid and/or hydrochloric acid
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release
of ozone depleting substances. - CORRECT ANSWER✅✅✅1990
Non-condensables in a refrigeration system result in a _______ discharge pressure - CORRECT
ANSWER✅✅✅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. -
CORRECT ANSWER✅✅✅15
Refrigerants are lighter than the air: - CORRECT ANSWER✅✅✅False
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses,
also requires Section ______ certification - CORRECT ANSWER✅✅✅608
If a technician is already trained and certified to handle CFC-12, he has to be re-certified to
handle HFC-134a - CORRECT ANSWER✅✅✅False
NEWEST 2024-2025 QUESTIONS AND CORRECT
ANSWERS
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - CORRECT
ANSWER✅✅✅80%
Ozone layer absorbs and scatters ________ from the sun - CORRECT
ANSWER✅✅✅Ultraviolet light
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. - CORRECT ANSWER✅✅✅$10,000
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United
States - CORRECT ANSWER✅✅✅Jan 1, 1996
R-134a is a chlorine-free refrigerant - CORRECT ANSWER✅✅✅True
MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped -
CORRECT ANSWER✅✅✅4 inches
Ozone at ground level and at Stratosphere is a harmful pollutant - CORRECT
ANSWER✅✅✅False
Each chlorine ion can able to destroy ______ ozone molecules - CORRECT
ANSWER✅✅✅100,000
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - CORRECT
ANSWER✅✅✅Nov 15, 1995
, For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 -
CORRECT ANSWER✅✅✅CFC-11
Ester-based synthetic oils can be mixed with other oils - CORRECT ANSWER✅✅✅False
Lifetime of CFCs is believed to range from _____ years - CORRECT ANSWER✅✅✅20-
100
CFCs are highly reactive in _____ of atmosphere - CORRECT ANSWER✅✅✅lower levels
At high temperaturesCFC-12 can decompose to form _______ - CORRECT
ANSWER✅✅✅hydrofluoric acid and/or hydrochloric acid
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release
of ozone depleting substances. - CORRECT ANSWER✅✅✅1990
Non-condensables in a refrigeration system result in a _______ discharge pressure - CORRECT
ANSWER✅✅✅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. -
CORRECT ANSWER✅✅✅15
Refrigerants are lighter than the air: - CORRECT ANSWER✅✅✅False
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses,
also requires Section ______ certification - CORRECT ANSWER✅✅✅608
If a technician is already trained and certified to handle CFC-12, he has to be re-certified to
handle HFC-134a - CORRECT ANSWER✅✅✅False
