epa 608 universal EXAM (2026) UPDATE Verified Questions And Answers |
Latest Already Graded A+ UPDATE |2026
What are two factors that, if present, are most likely to lead to an explosion with hydrocarbon
refrigerants? - (answer)A sufficient concentration of the refrigeration in the space and an ignition source
An appliance normally containing more than 50 pounds of R-22 refrigerant was found to have a 35%
annual leak rate. After the repair, how many successful verification tests are required? - (answer)Two.
Performed before the appliance is recharged
All appliances must be equipped with a service aperture or process stub which is used when adding or
removing refrigerant from the appliance. What is typically used on small appliances? - (answer)A
straight piece of tubing that is entered using a piercing access valve. Process Tube
What is the primary purpose of a purge unit on a low-pressure chiller? - (answer)Remove non-
condensable from the system
Which of the following are recommended safe work practices when recovering refrigerants? -
(answer)Wear safety eyewear and butyl-lined gloves when connecting/disconnecting hoses
What is the state of the refrigerant leaving the receiver in a refrigeration system? - (answer)High
pressure liquid
Which of the following repairs would always be considered "major" under EPA's regulations? -
(answer)Replacement of an evaporator coil
On low-pressure chillers, moisture most frequently enters the refrigeration system through: -
(answer)Leaks from areas with gaskets or fittings
How would you remove moisture from refrigerant in a system? - (answer)Use a filter drier
, epa 608 universal EXAM (2026) UPDATE Verified Questions And Answers |
Latest Already Graded A+ UPDATE |2026
Where does refrigerant go after it leaves the purge unit of a low-pressure centrifugal system? -
(answer)The evaporator
Which refrigerants can be mixed in an appliance? - (answer)Refrigerants cannot be mixed
What gas should be used to leak check a system designed for use with R-410A that has been opened for
a major system repair? - (answer)Pressurized nitrogen
What is the term for removing refrigerant in any condition from a system and storing it in an external
container without necessarily testing or processing it in any way? - (answer)Recovery
What is meant by the term "high efficiency purge unit"? - (answer)Purge units that discharge a low
percentage of refrigerant with the air they remove
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to: - (answer)know the type
of refrigerant in the system
Which of the following gases is used as the baseline measurement for global warming potential? -
(answer)Carbon Dioxide
Which hydrocarbon refrigerant is approved for retrofit into existing household refrigerators? -
(answer)HC R-600a 2 ounces or less
Recovered refrigerant may contain which of the following impurities? - (answer)Acids, moisture, and oil
A hydrostatic tube test kit will - (answer)determine if a lube leaks
Latest Already Graded A+ UPDATE |2026
What are two factors that, if present, are most likely to lead to an explosion with hydrocarbon
refrigerants? - (answer)A sufficient concentration of the refrigeration in the space and an ignition source
An appliance normally containing more than 50 pounds of R-22 refrigerant was found to have a 35%
annual leak rate. After the repair, how many successful verification tests are required? - (answer)Two.
Performed before the appliance is recharged
All appliances must be equipped with a service aperture or process stub which is used when adding or
removing refrigerant from the appliance. What is typically used on small appliances? - (answer)A
straight piece of tubing that is entered using a piercing access valve. Process Tube
What is the primary purpose of a purge unit on a low-pressure chiller? - (answer)Remove non-
condensable from the system
Which of the following are recommended safe work practices when recovering refrigerants? -
(answer)Wear safety eyewear and butyl-lined gloves when connecting/disconnecting hoses
What is the state of the refrigerant leaving the receiver in a refrigeration system? - (answer)High
pressure liquid
Which of the following repairs would always be considered "major" under EPA's regulations? -
(answer)Replacement of an evaporator coil
On low-pressure chillers, moisture most frequently enters the refrigeration system through: -
(answer)Leaks from areas with gaskets or fittings
How would you remove moisture from refrigerant in a system? - (answer)Use a filter drier
, epa 608 universal EXAM (2026) UPDATE Verified Questions And Answers |
Latest Already Graded A+ UPDATE |2026
Where does refrigerant go after it leaves the purge unit of a low-pressure centrifugal system? -
(answer)The evaporator
Which refrigerants can be mixed in an appliance? - (answer)Refrigerants cannot be mixed
What gas should be used to leak check a system designed for use with R-410A that has been opened for
a major system repair? - (answer)Pressurized nitrogen
What is the term for removing refrigerant in any condition from a system and storing it in an external
container without necessarily testing or processing it in any way? - (answer)Recovery
What is meant by the term "high efficiency purge unit"? - (answer)Purge units that discharge a low
percentage of refrigerant with the air they remove
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to: - (answer)know the type
of refrigerant in the system
Which of the following gases is used as the baseline measurement for global warming potential? -
(answer)Carbon Dioxide
Which hydrocarbon refrigerant is approved for retrofit into existing household refrigerators? -
(answer)HC R-600a 2 ounces or less
Recovered refrigerant may contain which of the following impurities? - (answer)Acids, moisture, and oil
A hydrostatic tube test kit will - (answer)determine if a lube leaks
