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EPA 609 Practice Exam/120 Complete Q’s and A’s
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EPA 609 Practice Exam/120 CompleteQ’s and A’s
R-134a is a chlorine-free refrigerant - -True
-Ozone layer absorbs and scatters ________ from the sun - -ultraviolet light
-For determining the Ozone Depletion Potential ________ having been
assigned a factor of 1 - -CFC-11
-A refillable refrigerant cylinder must not be filled above ______ of its full
capacity. - -80%
-Ozone at ground level and at Stratosphere is a harmful pollutant - -False
-Each chlorine ion can able to destroy ______ ozone molecules - -100,000
-Lifetime of CFCs is believed to range from _____ years - -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. - -
$10,000
-Ester-based synthetic oils can be mixed with other oils - -False
-Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - -
Nov 15, 1995
-MVAC systems being disposed must be evacuated to _____ of mercury
before being scrapped - -4 inches
-Since ________, it is no longer legal for CFCs to be manufactured or imported
into the United States - -Jan 1, 1996
-The Clean Air Act (CAA) of ______ directs EPA to establish requirements to
prevent the release of ozone depleting substances. - -1990
-At high temperatures, CFC-12 can decompose to form _______ - -
hydrochloric and hydrofluoric acid
-Ozone molecule consists of ______ atoms of oxygen - -three
-CFCs are highly reactive in _____ of atmosphere - -lower
, -Non-condensables in a refrigeration system result in a _______ discharge
pressure - -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. - -15
-Over the road refrigeration units and R-22 (HCFC) air conditioning, such as
that found in buses, also requires Section ______ certification - -608
-Ozone depletion increases global warming - -True
-Refrigerants are lighter than the air: - -False
-Stratosphere layer consists of about _____ of the available Ozone: - -90%
-Every refrigerant cylinder need not be protected by some type of pressure
relief device: - -False
-If a technician is already trained and certified to handle CFC-12, he has to
be re-certified to handle HFC-134a - -False
-Which of the following refrigerants has high ozone-depletion potential: - -
CFCs
-R-152a is a chemical compound composed of which of the following:
(Multiple Answer Question) - -Carbon, Hydrogen, Fluorine
-R-134a refrigerant does pose a cancer or birth defects hazard - -False
-External Recovery Tanks must be evacuated to ______ of mercury before
being put into service - -27 inches
-Disposable Refrigerant Tanks, under _______ must be evacuated before
being scrapped - -20 pounds
-HFC-134a, is the refrigerant that replaced _______ in automotive air
conditioning systems - -R-12
-Which of the following has the Ozone Depletion Potential (ODP) value of 1 -
-CFC-11
-CFCs manufacture was discontinued as of _______ - -January 1, 1996
-______ of stratospheric chlorine comes from ozone-depleting substances - -
82%
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