EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
1. Refrigeration technicians who violate the Clean Lose their EPA certifi-
Air Act can: - cation, be fined, be re-
quired to appear in Fed-
eral court.
2. After 1995, any supplies of CFC refrigerants to recovery and recycling.
service existing units in the USA can only come
from: -
3. Refrigerant that is recovered can be returned the same system or oth-
to: - er systems owned by the
same person without re-
striction.
4. Refrigerant can not be called "reclaimed" un- has been chemically an-
less it: - . alyzed and the refriger-
ant meets the ARI-700
standard.
5. The EPA can require a technician to demon- revocation of the techni-
strate their ability to perform proper procedures cians certification.
for recovering and/or recycling refrigerant. Fail-
ure to demonstrate competency can result in: -
6. What characteristic(s) of CFCs make them more Refrigerants that contain
likely to reach the stratosphere than most other chlorine but not hydro-
compounds containing chlorine? - gen are so stable that
they do not break down
in the lower atmosphere
after being released. The
chlorine or bromine re-
acts with the ozone,
causing it to change
back to oxygen, thus de-
stroying the ozone layer.
7. A system is considered dehydrated when: - the vacuum indicator
shows you have reached
, EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
and held the required fin-
ished vacuum.
8. Disposable refrigerant containers are used for virgin refrigerant
______
9. Which refrigerant is an HCFC? - R-123, R-124, R-22
10. What statement is true about an azeotropic re- It is a mixture that acts
frigerant mixture? - like a single-component
refrigerant over its entire
range.
11. Chlorofluorocarbos (CFCs) and hydrochloroflu- It is a mixture that acts
orocarbons (HCFCs) have which of the follow- like a single-component
ing in common? - refrigerant over its entire
range.
12. To scrap a disposable cylinder, the internal 0 psig.
cylinder pressure should be reduced to at least:
-
13. Manifold gauge sets are often color coded,
when this is done, the high pressure gauge is
color coded: - Red.
14. In general, blended refrigerants should be as a liquid.
charged: -
15. Blended refrigerants leak from a system: - in uneven amounts due
to different vapor pres-
sures.
16. Which of the following gases help form
the earth's protective shield? - Stratospheric
Ozone
17.
, EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
In a refrigerant system, the device that changes
a low pressure vapor to a high pressure vapor
is the: - compressor.
18. Data shows that chlorine in the stratosphere
comes mainly from CFCs rather than from nat-
ural sources such as volcanoes because: - The
rise in the amount of chlorine in the stratos-
phere matches the rise in the amount of fluo-
rine, which has different natural sources than
chlorine; The rise in the amount of chlorine in
the stratosphere matches the rise in CFC emis-
sions; 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;
19. Which atom of the CFC molecule causes ozone
depletion? - chlorine
20. The ozone layer protects the earth from: - ultra-
violet radiation from the sun.
21. When using with any solvent, cleaner, chemi-
cal or refrigerant, you should review: - material
safety data sheets.
22. 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 intentional-
ly venting? - 10,000
23. The Montreal Protocol is: - a treaty among na-
tions that controls production of CFCs and
HCFCs.
24. Which refrigerant is an HCFC? - R-123, R-22,
R-124
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
1. Refrigeration technicians who violate the Clean Lose their EPA certifi-
Air Act can: - cation, be fined, be re-
quired to appear in Fed-
eral court.
2. After 1995, any supplies of CFC refrigerants to recovery and recycling.
service existing units in the USA can only come
from: -
3. Refrigerant that is recovered can be returned the same system or oth-
to: - er systems owned by the
same person without re-
striction.
4. Refrigerant can not be called "reclaimed" un- has been chemically an-
less it: - . alyzed and the refriger-
ant meets the ARI-700
standard.
5. The EPA can require a technician to demon- revocation of the techni-
strate their ability to perform proper procedures cians certification.
for recovering and/or recycling refrigerant. Fail-
ure to demonstrate competency can result in: -
6. What characteristic(s) of CFCs make them more Refrigerants that contain
likely to reach the stratosphere than most other chlorine but not hydro-
compounds containing chlorine? - gen are so stable that
they do not break down
in the lower atmosphere
after being released. The
chlorine or bromine re-
acts with the ozone,
causing it to change
back to oxygen, thus de-
stroying the ozone layer.
7. A system is considered dehydrated when: - the vacuum indicator
shows you have reached
, EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
and held the required fin-
ished vacuum.
8. Disposable refrigerant containers are used for virgin refrigerant
______
9. Which refrigerant is an HCFC? - R-123, R-124, R-22
10. What statement is true about an azeotropic re- It is a mixture that acts
frigerant mixture? - like a single-component
refrigerant over its entire
range.
11. Chlorofluorocarbos (CFCs) and hydrochloroflu- It is a mixture that acts
orocarbons (HCFCs) have which of the follow- like a single-component
ing in common? - refrigerant over its entire
range.
12. To scrap a disposable cylinder, the internal 0 psig.
cylinder pressure should be reduced to at least:
-
13. Manifold gauge sets are often color coded,
when this is done, the high pressure gauge is
color coded: - Red.
14. In general, blended refrigerants should be as a liquid.
charged: -
15. Blended refrigerants leak from a system: - in uneven amounts due
to different vapor pres-
sures.
16. Which of the following gases help form
the earth's protective shield? - Stratospheric
Ozone
17.
, EPA 608 UNIVERSAL EXAM 2024 ACTUAL EXAM ALL 160 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED A
SWERS) |ALREADY GRADED A+
Study online at https://quizlet.com/_fxrisx
In a refrigerant system, the device that changes
a low pressure vapor to a high pressure vapor
is the: - compressor.
18. Data shows that chlorine in the stratosphere
comes mainly from CFCs rather than from nat-
ural sources such as volcanoes because: - The
rise in the amount of chlorine in the stratos-
phere matches the rise in the amount of fluo-
rine, which has different natural sources than
chlorine; The rise in the amount of chlorine in
the stratosphere matches the rise in CFC emis-
sions; 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;
19. Which atom of the CFC molecule causes ozone
depletion? - chlorine
20. The ozone layer protects the earth from: - ultra-
violet radiation from the sun.
21. When using with any solvent, cleaner, chemi-
cal or refrigerant, you should review: - material
safety data sheets.
22. 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 intentional-
ly venting? - 10,000
23. The Montreal Protocol is: - a treaty among na-
tions that controls production of CFCs and
HCFCs.
24. Which refrigerant is an HCFC? - R-123, R-22,
R-124
