Page |1
EPA 608 UNIVERSAL 2026/2027 QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM QUESTIONS AND VERIFIED
ANSWERS |ALREADY GRADED A+|
When evacuating a system, the hoses should be... - ANSWER-
equal to or larger than vacuum pump inlet connection.
It has been illegal to vent substitutes for CFC and HCFC
refrigerants since... - ANSWER-November 1985
Never use oxygen or compressed air to pressurize a system
because... - ANSWER-when mixed with compressor oil or some
refrigerants, it could explode.
Refrigerant cylinders should always be... - ANSWER-free of rust
and damage; color coded to indicate the contents; secure
Even though R-22 is considered non-toxic, what can it cause? -
ANSWER-asphyxia
, Page |2
Why is a system dehydrated? - ANSWER-remove water and
water vapor.
According to the EPA, of the refrigerants liked below, which types
of refrigerants will not contribute to Global Warming? - ANSWER-
CFCs HCFCs HFCs all contribute to Global Warming
What is the type of oil that is most commonly used in stationary
air conditioning applications with HFC-410A refrigerant? -
ANSWER-ester oil
Technicians receiving a passing grade on the Type II (medium-
pressure, high-pressure and very high pressure) exam are
certified to recover refrigerant during the maintenance, service, or
repair of medium- and high-pressure equipment and very high-
pressure refrigerants, including... - ANSWER-With Type II
certification, you are certified for all very high-pressure
refrigerants including CFC-13 and CFC-503
PPE (gloves, safety glasses, safety shoes, etc.) should always be
worn when? - ANSWER-handling and filling refrigerant cylinders.
, Page |3
Refrigerant vapors or mist should not be inhaled because... -
ANSWER-they may cause heart irregularities and/or
unconsciousness.
Violations of the Clean Air Act? - ANSWER-falsifying or failing to
keep required records; failing to reach required evacuation levels
before opening or disposing of appliances; knowingly releasing
CFC or HCFC refrigerants or their substitutes while repairing
appliances.
HFC refrigerants contain... - ANSWER-hydrogen, fluorine, carbon
Which refrigerant contains an HCFC? - ANSWER-R-22
Recovery equipment that relies upon the pressure of the
refrigerant in the appliance would be considered... - ANSWER-
System-dependent
EPA 608 UNIVERSAL 2026/2027 QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM QUESTIONS AND VERIFIED
ANSWERS |ALREADY GRADED A+|
When evacuating a system, the hoses should be... - ANSWER-
equal to or larger than vacuum pump inlet connection.
It has been illegal to vent substitutes for CFC and HCFC
refrigerants since... - ANSWER-November 1985
Never use oxygen or compressed air to pressurize a system
because... - ANSWER-when mixed with compressor oil or some
refrigerants, it could explode.
Refrigerant cylinders should always be... - ANSWER-free of rust
and damage; color coded to indicate the contents; secure
Even though R-22 is considered non-toxic, what can it cause? -
ANSWER-asphyxia
, Page |2
Why is a system dehydrated? - ANSWER-remove water and
water vapor.
According to the EPA, of the refrigerants liked below, which types
of refrigerants will not contribute to Global Warming? - ANSWER-
CFCs HCFCs HFCs all contribute to Global Warming
What is the type of oil that is most commonly used in stationary
air conditioning applications with HFC-410A refrigerant? -
ANSWER-ester oil
Technicians receiving a passing grade on the Type II (medium-
pressure, high-pressure and very high pressure) exam are
certified to recover refrigerant during the maintenance, service, or
repair of medium- and high-pressure equipment and very high-
pressure refrigerants, including... - ANSWER-With Type II
certification, you are certified for all very high-pressure
refrigerants including CFC-13 and CFC-503
PPE (gloves, safety glasses, safety shoes, etc.) should always be
worn when? - ANSWER-handling and filling refrigerant cylinders.
, Page |3
Refrigerant vapors or mist should not be inhaled because... -
ANSWER-they may cause heart irregularities and/or
unconsciousness.
Violations of the Clean Air Act? - ANSWER-falsifying or failing to
keep required records; failing to reach required evacuation levels
before opening or disposing of appliances; knowingly releasing
CFC or HCFC refrigerants or their substitutes while repairing
appliances.
HFC refrigerants contain... - ANSWER-hydrogen, fluorine, carbon
Which refrigerant contains an HCFC? - ANSWER-R-22
Recovery equipment that relies upon the pressure of the
refrigerant in the appliance would be considered... - ANSWER-
System-dependent
