EPA 609 Practice
R-134a is a chlorine-free refrigerant - correct answer-True
Ozone layer absorbs and scatters ________ from the sun - correct answer-ultraviolet light
For determining the Ozone Depletion Potential ________ having been assigned a factor of 1
- correct answer-CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - correct
answer-80%
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
Lifetime of CFCs is believed to range from _____ years - correct 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. - correct answer-$10,000
Ester-based synthetic oils can be mixed with other oils - correct answer-False
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - correct
answer-Nov 15, 1995
MVAC systems being disposed must be evacuated to _____ of mercury before being
scrapped - correct answer-4 inches
Since ________, it is no longer legal for CFCs to be manufactured or imported into the
United States - correct answer-Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the
release of ozone depleting substances. - correct answer-1990
At high temperatures, CFC-12 can decompose to form _______ - correct
answer-hydrochloric and hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - correct answer-three
CFCs are highly reactive in _____ of atmosphere - correct answer-lower
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
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in
buses, also requires Section ______ certification - correct answer-608
Ozone depletion increases global warming - correct answer-True
Refrigerants are lighter than the air: - correct answer-False
Stratosphere layer consists of about _____ of the available Ozone: - correct answer-90%
Every refrigerant cylinder need not be protected by some type of pressure relief device: -
correct answer-False
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
Which of the following refrigerants has high ozone-depletion potential: - correct
answer-CFCs
R-152a is a chemical compound composed of which of the following: (Multiple Answer
Question) - correct answer-Carbon, Hydrogen, Fluorine
R-134a refrigerant does pose a cancer or birth defects hazard - correct answer-False
External Recovery Tanks must be evacuated to ______ of mercury before being put into
service - correct answer-27 inches
Disposable Refrigerant Tanks, under _______ must be evacuated before being scrapped -
correct answer-20 pounds
HFC-134a, is the refrigerant that replaced _______ in automotive air conditioning systems -
correct answer-R-12
Which of the following has the Ozone Depletion Potential (ODP) value of 1 - correct
answer-CFC-11
CFCs manufacture was discontinued as of _______ - correct answer-January 1, 1996
______ of stratospheric chlorine comes from ozone-depleting substances - correct
answer-82%
MVAC systems need not be evacuated to a vacuum before servicing - correct answer-False
Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the
following: - correct answer-recovery, reclamation, and recycling
R-134a is a chlorine-free refrigerant - correct answer-True
Ozone layer absorbs and scatters ________ from the sun - correct answer-ultraviolet light
For determining the Ozone Depletion Potential ________ having been assigned a factor of 1
- correct answer-CFC-11
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - correct
answer-80%
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
Lifetime of CFCs is believed to range from _____ years - correct 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. - correct answer-$10,000
Ester-based synthetic oils can be mixed with other oils - correct answer-False
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - correct
answer-Nov 15, 1995
MVAC systems being disposed must be evacuated to _____ of mercury before being
scrapped - correct answer-4 inches
Since ________, it is no longer legal for CFCs to be manufactured or imported into the
United States - correct answer-Jan 1, 1996
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the
release of ozone depleting substances. - correct answer-1990
At high temperatures, CFC-12 can decompose to form _______ - correct
answer-hydrochloric and hydrofluoric acid
Ozone molecule consists of ______ atoms of oxygen - correct answer-three
CFCs are highly reactive in _____ of atmosphere - correct answer-lower
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
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in
buses, also requires Section ______ certification - correct answer-608
Ozone depletion increases global warming - correct answer-True
Refrigerants are lighter than the air: - correct answer-False
Stratosphere layer consists of about _____ of the available Ozone: - correct answer-90%
Every refrigerant cylinder need not be protected by some type of pressure relief device: -
correct answer-False
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
Which of the following refrigerants has high ozone-depletion potential: - correct
answer-CFCs
R-152a is a chemical compound composed of which of the following: (Multiple Answer
Question) - correct answer-Carbon, Hydrogen, Fluorine
R-134a refrigerant does pose a cancer or birth defects hazard - correct answer-False
External Recovery Tanks must be evacuated to ______ of mercury before being put into
service - correct answer-27 inches
Disposable Refrigerant Tanks, under _______ must be evacuated before being scrapped -
correct answer-20 pounds
HFC-134a, is the refrigerant that replaced _______ in automotive air conditioning systems -
correct answer-R-12
Which of the following has the Ozone Depletion Potential (ODP) value of 1 - correct
answer-CFC-11
CFCs manufacture was discontinued as of _______ - correct answer-January 1, 1996
______ of stratospheric chlorine comes from ozone-depleting substances - correct
answer-82%
MVAC systems need not be evacuated to a vacuum before servicing - correct answer-False
Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the
following: - correct answer-recovery, reclamation, and recycling
