EPA 608 CORE EXAM 2025 WITH 100%
ACCURATE SOLUTIONS
Refrigeration technicians who violate the clean air act can:
A. lose their epa certification
B. be fined.
C. be required to appear in federal court
D. all of the above - ✅✅✅CORRECT -all of the above
It has been illegal to vent substitutes for CFC and HCFC refrigerants since: - ✅✅✅CORRECT -
november 1995
which refrigerant has the lowest odp?
R22, R11, R12, R113 - ✅✅✅CORRECT -R22
to remove refrigerant in any condition from a system and store it in an external container without
necessarily testing or processing it in any way is to ________. - ✅✅✅CORRECT -recover
Does the EPA recognize any refrigerant "drop-in" replacements? - ✅✅✅CORRECT -no
Do low ambient temperatures slow or speed up the process of refrigerant recovery? - ✅✅✅CORRECT
-slow
Chemical composition of R-124 - ✅✅✅CORRECT -hcfc
The term used to describe the fact that a refrigerant blend has a range of boiling or condensing points at
a constant pressure is ________ _________. - ✅✅✅CORRECT -temperature glide
What is the best proof that there are CFCs in the atmosphere?
, Is it the measurement of:
A. CFCs in smog
B. other man-made compounds in air samples from the stratosphere?
C. CFCs in air samples from the atmosphere - ✅✅✅CORRECT -CFCs in air samples from the
atmosphere
According to the EPA, which of the following do NOT contribute to global warming? CFC, HCFC, HFC? -
✅✅✅CORRECT -all contribute
Even though R-22 is considered non-toxic, it:
A. is lighter than air
B. can cause asphyxia
C. is a class 1 refrigerant
D. can be detected by its color - ✅✅✅CORRECT -can cause asphyxia
CFCs will no longer be manufactured or imported into the U.S. after what year? - ✅✅✅CORRECT -
1995
A system is dehydrated to remove water and _____ ______. - ✅✅✅CORRECT -water vapor
Which of the following refrigerants contains a CFC: R500, R410A, R134A, OR R123? - ✅✅✅CORRECT
-R500
The EPA's definition of a, type 1, small appliance, is a device that contains a factory charge of _____ lbs
or less and is hermetically sealed at the factory. - ✅✅✅CORRECT -5
The EPA regulation requires any person who opens an appliance for maintenance to have at least one
self-contained recovery machine available. The only exception: _____ _____ - ✅✅✅CORRECT -small
appliances
At high temperatures, R-12 and R-22 can decompose to form: ______ _______. - ✅✅✅CORRECT -
Phosgene gas
ACCURATE SOLUTIONS
Refrigeration technicians who violate the clean air act can:
A. lose their epa certification
B. be fined.
C. be required to appear in federal court
D. all of the above - ✅✅✅CORRECT -all of the above
It has been illegal to vent substitutes for CFC and HCFC refrigerants since: - ✅✅✅CORRECT -
november 1995
which refrigerant has the lowest odp?
R22, R11, R12, R113 - ✅✅✅CORRECT -R22
to remove refrigerant in any condition from a system and store it in an external container without
necessarily testing or processing it in any way is to ________. - ✅✅✅CORRECT -recover
Does the EPA recognize any refrigerant "drop-in" replacements? - ✅✅✅CORRECT -no
Do low ambient temperatures slow or speed up the process of refrigerant recovery? - ✅✅✅CORRECT
-slow
Chemical composition of R-124 - ✅✅✅CORRECT -hcfc
The term used to describe the fact that a refrigerant blend has a range of boiling or condensing points at
a constant pressure is ________ _________. - ✅✅✅CORRECT -temperature glide
What is the best proof that there are CFCs in the atmosphere?
, Is it the measurement of:
A. CFCs in smog
B. other man-made compounds in air samples from the stratosphere?
C. CFCs in air samples from the atmosphere - ✅✅✅CORRECT -CFCs in air samples from the
atmosphere
According to the EPA, which of the following do NOT contribute to global warming? CFC, HCFC, HFC? -
✅✅✅CORRECT -all contribute
Even though R-22 is considered non-toxic, it:
A. is lighter than air
B. can cause asphyxia
C. is a class 1 refrigerant
D. can be detected by its color - ✅✅✅CORRECT -can cause asphyxia
CFCs will no longer be manufactured or imported into the U.S. after what year? - ✅✅✅CORRECT -
1995
A system is dehydrated to remove water and _____ ______. - ✅✅✅CORRECT -water vapor
Which of the following refrigerants contains a CFC: R500, R410A, R134A, OR R123? - ✅✅✅CORRECT
-R500
The EPA's definition of a, type 1, small appliance, is a device that contains a factory charge of _____ lbs
or less and is hermetically sealed at the factory. - ✅✅✅CORRECT -5
The EPA regulation requires any person who opens an appliance for maintenance to have at least one
self-contained recovery machine available. The only exception: _____ _____ - ✅✅✅CORRECT -small
appliances
At high temperatures, R-12 and R-22 can decompose to form: ______ _______. - ✅✅✅CORRECT -
Phosgene gas
