EPA-608 EXAM QUESTIONS AND
ANSWERS
What does EPA-608 certification primarily focus on? - correct Answers-Refrigerant
handling and safety
Which refrigerant is commonly used in household air conditioning systems? - correct
Answers-R-22
Which type of refrigerant certification is required for servicing high-pressure systems? -
correct Answers-Type II
What is the purpose of the EPA regulations regarding refrigerant recovery and
recycling? - correct Answers-To reduce greenhouse gas emissions
Which type of HVAC system typically uses a hermetic compressor? - correct Answers-
Residential window air conditioner
What is the recommended evacuation level for removing air and moisture from a
refrigeration system? - correct Answers-29 inches of Hg
In which situation is it acceptable to release refrigerants into the atmosphere? - correct
Answers-Never, unless it's necessary for safety
What safety precaution should be taken when using a torch for soldering copper pipes
in an HVAC system? - correct Answers-Ensure proper ventilation to prevent gas buildup
What is the primary function of the condenser in a refrigeration system? - correct
Answers-To reject heat from the refrigerant
What type of refrigerant is classified as an ozone-depleting substance (ODS)? - correct
Answers-R-123
Which organization is responsible for regulating the handling of refrigerants in the
United States? - correct Answers-EPA
What is the purpose of the recovery cylinder's relief valve? - correct Answers-To prevent
over-pressurization of the cylinder
Which refrigerant is known for its low Global Warming Potential (GWP) and is often
used as a replacement for R-22? - correct Answers-R-290 (Propane)
, When should a technician wear safety goggles while working with refrigerants? - correct
Answers-When handling liquid refrigerant
What is the maximum allowable leak rate for a comfort cooling appliance under EPA
regulations? - correct Answers-20%
Which type of refrigerant can be identified by the trade name "Freon"? - correct
Answers-R-22
What is the primary purpose of the filter-drier in a refrigeration system? - correct
Answers-To remove moisture and contaminants from the refrigerant
When recovering refrigerant from an appliance, where should the technician connect
the recovery equipment? - correct Answers-To the low-pressure side
Which type of HVAC system is most commonly found in residential applications? -
correct Answers-Split-system
What is the purpose of the sight glass in a refrigeration system's liquid line? - correct
Answers-To provide a visual check for refrigerant leaks
____________________ is NOT a type of EPA-608 certification? - correct Answers-
Type A
What is the primary responsibility of a Type III certified technician? - correct Answers-
Handling refrigerants in automobiles
What is the minimum evacuation time required when recovering refrigerant from a
system? - correct Answers-30 minutes
Which refrigerant classification is flammable and often used in small appliances like
domestic refrigerators? - correct Answers-Class III
What type of refrigerant should be used for appliances that have a charge of less than 5
pounds? - correct Answers-R-600a
What is the purpose of the Schrader valve in an HVAC system? - correct Answers-To
provide a port for connecting gauges and hoses
___________________ is NOT a required safety equipment when working with
refrigerants. - correct Answers-Hard hat
What is the typical color-code for high-pressure refrigerant hoses and gauges? - correct
Answers-Red
ANSWERS
What does EPA-608 certification primarily focus on? - correct Answers-Refrigerant
handling and safety
Which refrigerant is commonly used in household air conditioning systems? - correct
Answers-R-22
Which type of refrigerant certification is required for servicing high-pressure systems? -
correct Answers-Type II
What is the purpose of the EPA regulations regarding refrigerant recovery and
recycling? - correct Answers-To reduce greenhouse gas emissions
Which type of HVAC system typically uses a hermetic compressor? - correct Answers-
Residential window air conditioner
What is the recommended evacuation level for removing air and moisture from a
refrigeration system? - correct Answers-29 inches of Hg
In which situation is it acceptable to release refrigerants into the atmosphere? - correct
Answers-Never, unless it's necessary for safety
What safety precaution should be taken when using a torch for soldering copper pipes
in an HVAC system? - correct Answers-Ensure proper ventilation to prevent gas buildup
What is the primary function of the condenser in a refrigeration system? - correct
Answers-To reject heat from the refrigerant
What type of refrigerant is classified as an ozone-depleting substance (ODS)? - correct
Answers-R-123
Which organization is responsible for regulating the handling of refrigerants in the
United States? - correct Answers-EPA
What is the purpose of the recovery cylinder's relief valve? - correct Answers-To prevent
over-pressurization of the cylinder
Which refrigerant is known for its low Global Warming Potential (GWP) and is often
used as a replacement for R-22? - correct Answers-R-290 (Propane)
, When should a technician wear safety goggles while working with refrigerants? - correct
Answers-When handling liquid refrigerant
What is the maximum allowable leak rate for a comfort cooling appliance under EPA
regulations? - correct Answers-20%
Which type of refrigerant can be identified by the trade name "Freon"? - correct
Answers-R-22
What is the primary purpose of the filter-drier in a refrigeration system? - correct
Answers-To remove moisture and contaminants from the refrigerant
When recovering refrigerant from an appliance, where should the technician connect
the recovery equipment? - correct Answers-To the low-pressure side
Which type of HVAC system is most commonly found in residential applications? -
correct Answers-Split-system
What is the purpose of the sight glass in a refrigeration system's liquid line? - correct
Answers-To provide a visual check for refrigerant leaks
____________________ is NOT a type of EPA-608 certification? - correct Answers-
Type A
What is the primary responsibility of a Type III certified technician? - correct Answers-
Handling refrigerants in automobiles
What is the minimum evacuation time required when recovering refrigerant from a
system? - correct Answers-30 minutes
Which refrigerant classification is flammable and often used in small appliances like
domestic refrigerators? - correct Answers-Class III
What type of refrigerant should be used for appliances that have a charge of less than 5
pounds? - correct Answers-R-600a
What is the purpose of the Schrader valve in an HVAC system? - correct Answers-To
provide a port for connecting gauges and hoses
___________________ is NOT a required safety equipment when working with
refrigerants. - correct Answers-Hard hat
What is the typical color-code for high-pressure refrigerant hoses and gauges? - correct
Answers-Red
