EPA 608 Practice Test
One 2026 2027 Edition
Complete Review with
Verified Questions
and Correct Answers
, What is a blend of two or more components who's equilibrium vapor phase & liquid phase
m m m m m m m m m m m m m m m m
compositions are the same at a given pressure? - correct answer = Azeotrope m m m m m m m m m m m m
This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine,
m m m m m m m m m m m m m m m
chlorine, and bromine - correct answer = Halocarbon m m m m m m m
m Chlorofluorocarbons (CFCs) consist of? - correct answer = Chlorine, fluorine, carbon m m m m m m m m m m
m CFCs are chemically very stable because they contain no? - correct answer = Hydrogen
m m m m m m m m m m m m m
m CFCs are damaging to what layer of the ozone layer? - correct answer = Stratospheric
m m m m m m m m m m m m m m
Of the three common types of refrigerants this one has the highest ozone depletion potential
m m m m m m m m m m m m m m m m
(ODP) - correct answer = CFCs m m m m m
These test methods are assumed by the EPA as the most effective methods for locating the
m m m m m m m m m m m m m m m m m
general area of small leaks - correct answer = Electronic and ultrasonic
m m m m m m m m m m m
mAfter recovery of a system, if the pressure rises above ambient pressure then what is most
m m m m m m m m m m m m m m m m
likely happening? - correct answer = Trapped refrigerant is probably boiling off
m m m m m m m m m m m
mIn cases where the refrigerant cannot be reclaimed due to contamination with other
m m m m m m m m m m m m m
refrigerants, what must be done to the refrigerant? - correct answer = Must be destroyed by m m m m m m m m m m m m m m m m
incineration at an approved facility m m m m
Where should the system vacuum gauge be connected? - correct answer = As close as
m m m m m m m m m m m m m m m m
possible to the system being evacuated m m m m m
m Import of CFCs will be banned after December 31, what year? - correct answer = 1995
m m m m m m m m m m m m m m m
A second category of refrigerant is currently available which is hydrochlorofluorocarbons
m m m m m m m m m m m m
(HCFCs). Although they contain chlorine, which is damaging to the ozone layer, they also
m m m m m m m m m m m m m m
contain this which makes them chemically less stable once they enter the atmosphere. -
m m m m m m m m m m m m m m
correct answer = Hydrogen m m m
Under EPA's regulations, reclaimed refrigerant must meet what standards for purity before it
m m m m m m m m m m m m m m
can be resold? - correct answer = ARI-700
m m m m m m m
What type of recovery devices are so named because they depend on components of the
m m m m m m m m m m m m m m m m
system; that is, they capture refrigerant with the assistance of components in the air
m m m m m m m m m m m m m m
conditioning or refrigeration equipment as they are emptying. - correct answer = System m m m m m m m m m m m m m
dependent
m All devices used for refrigerant recovery must meet what standards? - correct answer = EPA
m m m m m m m m m m m m m m
m What is one HCFC? - correct answer = R-22
m m m m m m m m
One 2026 2027 Edition
Complete Review with
Verified Questions
and Correct Answers
, What is a blend of two or more components who's equilibrium vapor phase & liquid phase
m m m m m m m m m m m m m m m m
compositions are the same at a given pressure? - correct answer = Azeotrope m m m m m m m m m m m m
This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine,
m m m m m m m m m m m m m m m
chlorine, and bromine - correct answer = Halocarbon m m m m m m m
m Chlorofluorocarbons (CFCs) consist of? - correct answer = Chlorine, fluorine, carbon m m m m m m m m m m
m CFCs are chemically very stable because they contain no? - correct answer = Hydrogen
m m m m m m m m m m m m m
m CFCs are damaging to what layer of the ozone layer? - correct answer = Stratospheric
m m m m m m m m m m m m m m
Of the three common types of refrigerants this one has the highest ozone depletion potential
m m m m m m m m m m m m m m m m
(ODP) - correct answer = CFCs m m m m m
These test methods are assumed by the EPA as the most effective methods for locating the
m m m m m m m m m m m m m m m m m
general area of small leaks - correct answer = Electronic and ultrasonic
m m m m m m m m m m m
mAfter recovery of a system, if the pressure rises above ambient pressure then what is most
m m m m m m m m m m m m m m m m
likely happening? - correct answer = Trapped refrigerant is probably boiling off
m m m m m m m m m m m
mIn cases where the refrigerant cannot be reclaimed due to contamination with other
m m m m m m m m m m m m m
refrigerants, what must be done to the refrigerant? - correct answer = Must be destroyed by m m m m m m m m m m m m m m m m
incineration at an approved facility m m m m
Where should the system vacuum gauge be connected? - correct answer = As close as
m m m m m m m m m m m m m m m m
possible to the system being evacuated m m m m m
m Import of CFCs will be banned after December 31, what year? - correct answer = 1995
m m m m m m m m m m m m m m m
A second category of refrigerant is currently available which is hydrochlorofluorocarbons
m m m m m m m m m m m m
(HCFCs). Although they contain chlorine, which is damaging to the ozone layer, they also
m m m m m m m m m m m m m m
contain this which makes them chemically less stable once they enter the atmosphere. -
m m m m m m m m m m m m m m
correct answer = Hydrogen m m m
Under EPA's regulations, reclaimed refrigerant must meet what standards for purity before it
m m m m m m m m m m m m m m
can be resold? - correct answer = ARI-700
m m m m m m m
What type of recovery devices are so named because they depend on components of the
m m m m m m m m m m m m m m m m
system; that is, they capture refrigerant with the assistance of components in the air
m m m m m m m m m m m m m m
conditioning or refrigeration equipment as they are emptying. - correct answer = System m m m m m m m m m m m m m
dependent
m All devices used for refrigerant recovery must meet what standards? - correct answer = EPA
m m m m m m m m m m m m m m
m What is one HCFC? - correct answer = R-22
m m m m m m m m
