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Exam (elaborations)

EPA 609 QUESTIONS WITH CORRECT ANSWERS GRADED A+

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Exam of 5 pages for the course EPA 609 at EPA 609 (EPA 609)

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EPA 609
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Uploaded on
April 25, 2025
Number of pages
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Written in
2024/2025
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EPA 609

Lifetime of CFCs is believed to range from _____ years? - answer2 to 100

For determining the Ozone Depletion Potential ________ having been assigned a factor
of 1? - answerCFC-11

Ester-based synthetic oils can be mixed with other oils? - answer False

Since ________, it is no longer legal for CFCs to be manufactured or imported into the
United States? - answer January 1, 1996

Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants? - answer
November 15, 1995

Ozone at ground level ans at Stratosphere is a harmful pollutant? - answer False

A refillable refrigerant cylinder must not be filled above ______ of its full capacity? -
answer80%

Each chlorine ion can able to destroy ______ ozone mole? - answer100,000

R-134a is a chlorine-free refrigerant? - answerTrue

MVAC systems being disposed must be evacuated to _____ of mercury before being
scrapped? - answer4 inches

Ozone layer absorbs and scatters ________ from the sun? - answerUltraviolet 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? - answer10,000

Every refrigerant cylinder need not be protected by some type of pressure relief device?
- answerFalse

Ozone molecule consists of ______ atoms of oxygen? - answerThree

CFCs are highly reactive in _____ of atmosphere? - answerLower level

Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found
in buses, also requires Section ______ certification? - answer608

Stratosphere layer consists of about _____ of the available Ozone? - answer90%

, 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? - answer15

Ozone depletion Increase global warming? - answerTrue

Non-condensables in a refrigeration system result in a _______ discharge pressure? -
answerHigher

At high temperaturesCFC-12 can decompose to form _______? - answerBoth options
are correct: hydrofluoric acid and hydrochloric acid

If a technician is already trained and certified to handle CFC-12, he has to be re-
certified to handle HFC-134a? - answerFalse

The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the
release of ozone depleting substances? - answer1990

Refrigerants are lighter than the air? - answerFalse

External Recovery Tanks must be evacuated to ______ of mercury before being put
into service? - answer27 inches

Disposable Refrigerant Tanks, under _______ must be evacuated before being
scrapped? - answer20 pounds

______ of stratospheric chlorine comes from ozone-depleting substances? -
answer82%

Which of the following refrigerants has high ozone-depletion potential? - answerCFCs

Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the
following? - answerAll of the above recovery, recycle, reclaimation

Which of the following has the Ozone Depletion Potential (ODP) value of 1? -
answerCFC-11

CFCs manufacture was discontinued as of _______? - answerJanuary 1, 1996

HFC-134a, is the refrigerant that replaced _______ in automotive air conditioning
systems? - answerR-12

Which of the following in refrigerant makes them chemically less stable once they enter
the atmosphere? - answerHydrogen

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