EPA 609 Certification Exam 2026/2027 |
MVAC Refrigerant Handling | Practice
Questions & Comprehensive Exam Review
R-134a is a chlorine-free refrigerant - Precise Answer ✔✔True
Ozone layer absorbs and scatters ________ from the sun - Precise
Answer ✔✔ultraviolet light
For determining the Ozone Depletion Potential ________ having been
assigned a factor of 1 - Precise Answer ✔✔CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its
full capacity. - Precise Answer ✔✔80%
Ozone at ground level and at Stratosphere is a harmful pollutant -
Precise Answer ✔✔False
Each chlorine ion can able to destroy ______ ozone molecules - Precise
Answer ✔✔100,000
Lifetime of CFCs is believed to range from _____ years - Precise
Answer ✔✔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. - Precise Answer ✔✔$10,000
Ester-based synthetic oils can be mixed with other oils - Precise Answer
✔✔False
Since _____, it is illegal to vent substitutes for CFC and HCFC
, refrigerants - Precise Answer ✔✔Nov 15, 1995
MVAC systems being disposed must be evacuated to _____ of mercury
before being scrapped - Precise Answer ✔✔4 inches
Since ________, it is no longer legal for CFCs to be manufactured or
imported into the United States - Precise Answer ✔✔Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish
requirements to prevent the release of ozone depleting substances. -
Precise Answer ✔✔1990
At high temperatures, CFC-12 can decompose to form _______ - Precise
Answer ✔✔hydrochloric and hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - Precise Answer
✔✔three
CFCs are highly reactive in _____ of atmosphere - Precise Answer
✔✔lower
Non-condensables in a refrigeration system result in a _______
discharge pressure - Precise 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. - Precise Answer ✔✔15
Over the road refrigeration units and R-22 (HCFC) air conditioning,
such as that found in buses, also requires Section ______ certification -
Precise Answer ✔✔608
Ozone depletion increases global warming - Precise Answer ✔✔True
MVAC Refrigerant Handling | Practice
Questions & Comprehensive Exam Review
R-134a is a chlorine-free refrigerant - Precise Answer ✔✔True
Ozone layer absorbs and scatters ________ from the sun - Precise
Answer ✔✔ultraviolet light
For determining the Ozone Depletion Potential ________ having been
assigned a factor of 1 - Precise Answer ✔✔CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its
full capacity. - Precise Answer ✔✔80%
Ozone at ground level and at Stratosphere is a harmful pollutant -
Precise Answer ✔✔False
Each chlorine ion can able to destroy ______ ozone molecules - Precise
Answer ✔✔100,000
Lifetime of CFCs is believed to range from _____ years - Precise
Answer ✔✔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. - Precise Answer ✔✔$10,000
Ester-based synthetic oils can be mixed with other oils - Precise Answer
✔✔False
Since _____, it is illegal to vent substitutes for CFC and HCFC
, refrigerants - Precise Answer ✔✔Nov 15, 1995
MVAC systems being disposed must be evacuated to _____ of mercury
before being scrapped - Precise Answer ✔✔4 inches
Since ________, it is no longer legal for CFCs to be manufactured or
imported into the United States - Precise Answer ✔✔Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish
requirements to prevent the release of ozone depleting substances. -
Precise Answer ✔✔1990
At high temperatures, CFC-12 can decompose to form _______ - Precise
Answer ✔✔hydrochloric and hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - Precise Answer
✔✔three
CFCs are highly reactive in _____ of atmosphere - Precise Answer
✔✔lower
Non-condensables in a refrigeration system result in a _______
discharge pressure - Precise 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. - Precise Answer ✔✔15
Over the road refrigeration units and R-22 (HCFC) air conditioning,
such as that found in buses, also requires Section ______ certification -
Precise Answer ✔✔608
Ozone depletion increases global warming - Precise Answer ✔✔True
