Exam (elaborations)
EPA Section 609 questions rated A
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EPA Section 609 questions rated A
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EPA Section 609 questions rated AA refillable refrigerant cylinder must not be filled above ______ of its full capacity.
- 80%
Ozone layer absorbs and scatters ________ from the sun - 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. - $10,000
Since ________, it is no longer legal for CFCs to be manufactured or imported into
the United States - Jan 1, 1996
R-134a is a chlorine-free refrigerant - True
MVAC systems being disposed must be evacuated to _____ of mercury before
being scrapped - 4 inches
Ozone at ground level and at Stratosphere is a harmful pollutant - False
Each chlorine ion can able to destroy ______ ozone molecules - 100,000
, EPA Section 609 questions rated A
Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - Nov 15,
1995
For determining the Ozone Depletion Potential ________ having been assigned a
factor of 1 - CFC-11
Ester-based synthetic oils can be mixed with other oils - False
Lifetime of CFCs is believed to range from _____ years - 20-100
CFCs are highly reactive in _____ of atmosphere - lower levels
At high temperaturesCFC-12 can decompose to form _______ - 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. - 1990
Non-condensables in a refrigeration system result in a _______ discharge pressure
- Higher
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