EPA 608 Practice Test #1 questions n answers
graded A+ updated
1. What is a blend of two or more components Azeotrope
who's equilibrium vapor phase & liquid
phase compositions are the same at a given
pressure?
Halocarbon
2. This is a halogenated hydrocarbon containing
one or more of the three halogens: fluorine,
chlorine, and bromine
3. Chlorofluorocarbons (CFCs) consist of? Chlorine, fluorine, carbon
4. CFCs are chemically very stable because they Hydrogen
contain no?
5. CFCs are damaging to what layer of the ozone layer?
Stratospheric
6. Of the three common types of refrigerants CFCs
this one has the highest ozone depletion
potential (ODP)
Electronic and ultrasonic
7. These test methods are assumed by the
EPA as the most effective methods for locating
the general area of small leaks
8. After recovery of a system, if the pressure rises above Trapped
refrigerant is
ambient pressure then what is most likely happening? probably
boiling ott
9. In cases where the refrigerant cannot be 10. Where
reclaimed due to contamination with other should the
refrigerants, what must be done to the system
refrigerant? vacuum
gauge be
1/
21
,EPA 608 Practice Test #1 questions n answers
graded A+ updated
connect- ed? Must be destroyed by
in- cineration at an
11. Import of CFCs will be banned after
December 31, what year? approved facility
As close as possible to
the system being
evacuated
1995
2/
21
, EPA 608 Practice Test #1 questions n answers
graded A+ updated
12. A second category of refrigerant is currently available Hydrogen
which is hydrochlorofluorocarbons (HCFCs).
Although they contain chlorine, which is
damaging to the ozone layer, they also contain
this which makes them chem- ically less stable
once they enter the atmosphere.
13. Under EPA's regulations, reclaimed refrigerant ARI-700
must meet what standards for purity before
it can be resold?
14. What type of recovery devices are so named
System dependent
because they depend on components of the
system; that is, they capture refrigerant with
the assistance of com- ponents in the air
conditioning or refrigeration equip- ment as
they are emptying.
15. All devices used for refrigerant recovery must EPA
meet what standards?
16. What is one HCFC? R-22
17. Refrigerants that contain no chlorine at all are called? HFCs
18. CH2FCF3 refrigerant is a? HFC
19. Ozone in the stratosphere consist of molecules con- 3
taining how many oxygen atoms?
20. What's in refrigerants causes ozone destruction? Chlorine
21. CFCs are able to reach the stratosphere because? They are
chemically very
3/
21
graded A+ updated
1. What is a blend of two or more components Azeotrope
who's equilibrium vapor phase & liquid
phase compositions are the same at a given
pressure?
Halocarbon
2. This is a halogenated hydrocarbon containing
one or more of the three halogens: fluorine,
chlorine, and bromine
3. Chlorofluorocarbons (CFCs) consist of? Chlorine, fluorine, carbon
4. CFCs are chemically very stable because they Hydrogen
contain no?
5. CFCs are damaging to what layer of the ozone layer?
Stratospheric
6. Of the three common types of refrigerants CFCs
this one has the highest ozone depletion
potential (ODP)
Electronic and ultrasonic
7. These test methods are assumed by the
EPA as the most effective methods for locating
the general area of small leaks
8. After recovery of a system, if the pressure rises above Trapped
refrigerant is
ambient pressure then what is most likely happening? probably
boiling ott
9. In cases where the refrigerant cannot be 10. Where
reclaimed due to contamination with other should the
refrigerants, what must be done to the system
refrigerant? vacuum
gauge be
1/
21
,EPA 608 Practice Test #1 questions n answers
graded A+ updated
connect- ed? Must be destroyed by
in- cineration at an
11. Import of CFCs will be banned after
December 31, what year? approved facility
As close as possible to
the system being
evacuated
1995
2/
21
, EPA 608 Practice Test #1 questions n answers
graded A+ updated
12. A second category of refrigerant is currently available Hydrogen
which is hydrochlorofluorocarbons (HCFCs).
Although they contain chlorine, which is
damaging to the ozone layer, they also contain
this which makes them chem- ically less stable
once they enter the atmosphere.
13. Under EPA's regulations, reclaimed refrigerant ARI-700
must meet what standards for purity before
it can be resold?
14. What type of recovery devices are so named
System dependent
because they depend on components of the
system; that is, they capture refrigerant with
the assistance of com- ponents in the air
conditioning or refrigeration equip- ment as
they are emptying.
15. All devices used for refrigerant recovery must EPA
meet what standards?
16. What is one HCFC? R-22
17. Refrigerants that contain no chlorine at all are called? HFCs
18. CH2FCF3 refrigerant is a? HFC
19. Ozone in the stratosphere consist of molecules con- 3
taining how many oxygen atoms?
20. What's in refrigerants causes ozone destruction? Chlorine
21. CFCs are able to reach the stratosphere because? They are
chemically very
3/
21
