EPA 608 universal with correct Answers
Refrigeration technicians who violate the Clean Air Act can: -
After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - Refrigerant that is recovered can be returned to:
Refrigerant can not be called "recla...
EPA 608 universal with correct Answers
Refrigeration technicians who violate the Clean Air Act can: - CORRECT ANSWERS Lose
their EPA certification, be fined, be required to appear in Federal court.
After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come
from: - CORRECT ANSWERS recovery and recycling.
Refrigerant that is recovered can be returned to: - CORRECT ANSWERS the same system or
other systems owned by the same person without restriction.
Refrigerant can not be called "reclaimed" unless it: - . CORRECT ANSWERS has been
chemically analyzed and the refrigerant meets the ARI-700 standard.
The EPA can require a technician to demonstrate their ability to perform proper procedures for
recovering and/or recycling refrigerant. Failure to demonstrate competency can result in: -
CORRECT ANSWERS revocation of the technicians certification.
What characteristic(s) of CFCs make them more likely to reach the stratosphere than most other
compounds containing chlorine? - CORRECT ANSWERS Refrigerants that contain chlorine but
not hydrogen are so stable that they do not break down in the lower atmosphere after being
released. The chlorine or bromine reacts with the ozone, causing it to change back to oxygen,
thus destroying the ozone layer.
A system is considered dehydrated when: - CORRECT ANSWERS the vacuum indicator shows
you have reached and held the required finished vacuum.
Disposable refrigerant containers are used for ______ CORRECT ANSWERS virgin refrigerant
Which refrigerant is an HCFC? - CORRECT ANSWERS R-123, R-124, R-22
What statement is true about an azeotropic refrigerant mixture? - CORRECT ANSWERS It is a
mixture that acts like a single-component refrigerant over its entire range.
Chlorofluorocarbos (CFCs) and hydrochlorofluorocarbons (HCFCs) have which of the following
in common? - CORRECT ANSWERS It is a mixture that acts like a single-component
refrigerant over its entire range.
To scrap a disposable cylinder, the internal cylinder pressure should be reduced to at least: -
CORRECT ANSWERS 0 psig.
, Manifold gauge sets are often color coded, when this is done, the high pressure gauge is color
coded: - CORRECT ANSWERS Red
In general, blended refrigerants should be charged: - CORRECT ANSWERS as a liquid.
Blended refrigerants leak from a system: - CORRECT ANSWERS in uneven amounts due to
different vapor pressures.
Which of the following gases help form the earth's protective shield? - Stratospheric Ozone
CORRECT ANSWERS
In a refrigerant system, the device that changes a low pressure vapor to a high pressure vapor is
the: -. CORRECT ANSWERS Compressor
Data shows that chlorine in the stratosphere comes mainly from CFCs rather than from natural
sources such as volcanoes because: - The rise in the amount of chlorine in the stratosphere
matches the rise in the amount of fluorine, which has different natural sources than chlorine; The
rise in the amount of chlorine in the stratosphere matches the rise in CFC emissions; Air samples
taken from the stratosphere over erupting volcanoes show that volcanoes contribute a small
quantity of chlorine to the stratosphere when compared to CFCs; CORRECT ANSWERS
Which atom of the CFC molecule causes ozone depletion? - chlorine CORRECT ANSWERS
The ozone layer protects the earth from: - ultraviolet radiation from the sun. CORRECT
ANSWERS
When using with any solvent, cleaner, chemical or refrigerant, you should review: - material
safety data sheets. CORRECT ANSWERS
An award of up to what amount may be paid to a person supplying information that leads to a
penalty against a technician who is intentionally venting? - 10,000 CORRECT ANSWERS
The Montreal Protocol is: - a treaty among nations that controls production of CFCs and HCFCs.
CORRECT ANSWERS
Which refrigerant is an HCFC? - R-123, R-22, R-124 CORRECT ANSWERS
What is one of the most serious results of damage to the ozone layer? - increases in human skin
cancer CORRECT ANSWERS
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