10/28/24, 11:48 PM EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIO…
EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED
A+
Terms in this set (160)
Refrigeration technicians who violate the Lose their EPA certification, be fined, be required to appear in Federal court.
Clean Air Act can: -
After 1995, any supplies of CFC recovery and recycling.
refrigerants to service existing units in the
USA can only come from: -
Refrigerant that is recovered can be the same system or other systems owned by the same person without restriction.
returned to: -
Refrigerant can not be called "reclaimed" has been chemically analyzed and the refrigerant meets the ARI-700 standard.
unless it: - .
The EPA can require a technician to revocation of the technicians certification.
demonstrate their ability to perform
proper procedures for recovering and/or
recycling refrigerant. Failure to
demonstrate competency can result in: -
What characteristic(s) of CFCs make them Refrigerants that contain chlorine but not hydrogen are so stable that they do not
more likely to reach the stratosphere than break down in the lower atmosphere after being released. The chlorine or bromine
most other compounds containing reacts with the ozone, causing it to change back to oxygen, thus destroying the
chlorine? - ozone layer.
A system is considered dehydrated when: the vacuum indicator shows you have reached and held the required finished
- vacuum.
Fullscreen
Disposable refrigerant containers are used virgin refrigerant
for ______
Which refrigerant is an HCFC? - R-123, R-124, R-22
What statement is true about an It is a mixture that acts like a single-component refrigerant over its entire range.
azeotropic refrigerant mixture? -
Chlorofluorocarbos (CFCs) and It is a mixture that acts like a single-component refrigerant over its entire range.
hydrochlorofluorocarbons (HCFCs) have
which of the following in common? -
To scrap a disposable cylinder, the internal 0 psig.
cylinder pressure should be reduced to at
least: -
Manifold gauge sets are often color
coded, when this is done, the high pressure
gauge is color coded: - Red.
In general, blended refrigerants should be as a liquid.
charged: -
, 10/28/24, 11:48 PM EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIO…
Blended refrigerants leak from a system: - in uneven amounts due to different vapor pressures.
Which of the following gases help form the
earth's protective shield? - Stratospheric
Ozone
In a refrigerant system, the device that
changes a low pressure vapor to a high
pressure vapor is the: - 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;
Which atom of the CFC molecule causes
ozone depletion? - chlorine
The ozone layer protects the earth from: -
ultraviolet radiation from the sun.
When using with any solvent, cleaner,
chemical or refrigerant, you should review:
- material safety data sheets.
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
The Montreal Protocol is: - a treaty among
nations that controls production of CFCs
and HCFCs.
Which refrigerant is an HCFC? - R-123, R-
22, R-124
What is one of the most serious results of
damage to the ozone layer? - increases in
human skin cancer
Of the refrigerants listed below, which has
the lowest ozone depletion potential
(ODP)? - R-22
To determine the maximum allowable
pressure to use when checking a system,
check: - the design pressure on the
equipment nameplate
Ozone depletion potential, or "ODP," is: - A
measure of the ability of CFCs and HCFCs
to destroy ozone.
An example of an HFC refrigerant is: - R-
134a
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