23/12/2024, 16:40 EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES …
EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS
Practice questions for this set
Learn 1 /7 Study using Learn
Give this one a go later!
What characteristic(s) of CFCs make them
more likely to reach the stratosphere than Use________ to remove ice from a sight glass.
1 2
most other compounds containing - an alcohol spray.
chlorine? -
When a system will not hold vacuum after
An example of an HFC refrigerant is: - R-
3 is has been evacuated, then: - they system
410A
may be leaking.
Don't know?
Terms in this set (160)
Refrigeration technicians who Lose their EPA certification, be fined, be required to appear in
violate the Clean Air Act can: - Federal court.
https://quizlet.com/988018814/flash-cards/ 1/21
,23/12/2024, 16:40 EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES …
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 the same system or other systems owned by the same person
can be returned to: - without restriction.
Refrigerant can not be called has been chemically analyzed and the refrigerant meets the
"reclaimed" unless it: - . ARI-700 standard.
The EPA can require a revocation of the technicians certification.
technician to 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 Refrigerants that contain chlorine but not hydrogen are so
make them more likely to stable that they do not break down in the lower atmosphere
reach the stratosphere than after being released. The chlorine or bromine reacts with the
most other compounds ozone, causing it to change back to oxygen, thus destroying
containing chlorine? - the ozone layer.
A system is considered the vacuum indicator shows you have reached and held the
dehydrated when: - required finished vacuum.
Disposable refrigerant virgin refrigerant
containers are used for ______
Which refrigerant is an HCFC? R-123, R-124, R-22
-
What statement is true about It is a mixture that acts like a single-component refrigerant
an azeotropic refrigerant over its entire range.
mixture? -
Chlorofluorocarbos (CFCs) It is a mixture that acts like a single-component refrigerant
and hydrochlorofluorocarbons over its entire range.
(HCFCs) have which of the
following in common? -
To scrap a disposable cylinder, 0 psig.
the internal cylinder pressure
should be reduced to at least:
-
https://quizlet.com/988018814/flash-cards/ 2/21
, 23/12/2024, 16:40 EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES …
Manifold gauge sets are often
color coded, when this is done,
the high pressure gauge is
color coded: - Red.
In general, blended as a liquid.
refrigerants should be
charged: -
Blended refrigerants leak from in uneven amounts due to different vapor pressures.
a system: -
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
https://quizlet.com/988018814/flash-cards/ 3/21
EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS
Practice questions for this set
Learn 1 /7 Study using Learn
Give this one a go later!
What characteristic(s) of CFCs make them
more likely to reach the stratosphere than Use________ to remove ice from a sight glass.
1 2
most other compounds containing - an alcohol spray.
chlorine? -
When a system will not hold vacuum after
An example of an HFC refrigerant is: - R-
3 is has been evacuated, then: - they system
410A
may be leaking.
Don't know?
Terms in this set (160)
Refrigeration technicians who Lose their EPA certification, be fined, be required to appear in
violate the Clean Air Act can: - Federal court.
https://quizlet.com/988018814/flash-cards/ 1/21
,23/12/2024, 16:40 EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES …
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 the same system or other systems owned by the same person
can be returned to: - without restriction.
Refrigerant can not be called has been chemically analyzed and the refrigerant meets the
"reclaimed" unless it: - . ARI-700 standard.
The EPA can require a revocation of the technicians certification.
technician to 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 Refrigerants that contain chlorine but not hydrogen are so
make them more likely to stable that they do not break down in the lower atmosphere
reach the stratosphere than after being released. The chlorine or bromine reacts with the
most other compounds ozone, causing it to change back to oxygen, thus destroying
containing chlorine? - the ozone layer.
A system is considered the vacuum indicator shows you have reached and held the
dehydrated when: - required finished vacuum.
Disposable refrigerant virgin refrigerant
containers are used for ______
Which refrigerant is an HCFC? R-123, R-124, R-22
-
What statement is true about It is a mixture that acts like a single-component refrigerant
an azeotropic refrigerant over its entire range.
mixture? -
Chlorofluorocarbos (CFCs) It is a mixture that acts like a single-component refrigerant
and hydrochlorofluorocarbons over its entire range.
(HCFCs) have which of the
following in common? -
To scrap a disposable cylinder, 0 psig.
the internal cylinder pressure
should be reduced to at least:
-
https://quizlet.com/988018814/flash-cards/ 2/21
, 23/12/2024, 16:40 EPA 608 UNIVERSAL EXAM ACTUAL EXAM ALL 160 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES …
Manifold gauge sets are often
color coded, when this is done,
the high pressure gauge is
color coded: - Red.
In general, blended as a liquid.
refrigerants should be
charged: -
Blended refrigerants leak from in uneven amounts due to different vapor pressures.
a system: -
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
https://quizlet.com/988018814/flash-cards/ 3/21
