EPA 608 Type 2 Practice exam questions
with solutions 2025
If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be;
A retrofitted or retired within 3 months.
B retrofitted or retired within 12 months.
C replaced within 3 months.
D replaced within 12 months. - ANSWER B
retrofitted or retired within 12 months.
A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated
(recovered) to a level of;
A 15 inches of vacuum
B 10 inches of vacuum
C 4 inches of vacuum
D 0 inches of vacuum - ANSWER B 10 inches of vacuum
What conditions allow for a system to be opened and repaired without recovering the
refrigerant to the required vacuum level?
A A system with a large leak and internal pressure of 0 psig
B A system that is undergoing a major component replacement
C A system that uses a CFC refrigerant
D A system that has a non-operational compressor - ANSWER A
A system with a large leak and internal pressure of 0 psig
A crankcase heater is often used to prevent refrigerant from mixing with compressor oil during
periods of:
ALow ambient temperature
, B High ambient temperature
C Low humidity
D High humidity - ANSWER A
Low ambient temperature
Leaks must be repaired on industrial process and refrigeration units with a 50-pound charge or
greater when the annualized leak rate reaches _____ or more.
A 10%
B 20%
C 30%
D 40% - ANSWER C
30%
When dehydrating a system, it should be evacuated to a minimum level of;
A 30 inches of Mercury
B 25,000 Microns
C 500 Microns
D EPA does not have a requirement - ANSWER C
500 Microns
All HVAC/R systems must be protected by a;
A Low-pressure switch
B High-pressure switch
C Compressor impedance overload
D Pressure relief valve - ANSWER D
Pressure relief valve
with solutions 2025
If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be;
A retrofitted or retired within 3 months.
B retrofitted or retired within 12 months.
C replaced within 3 months.
D replaced within 12 months. - ANSWER B
retrofitted or retired within 12 months.
A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated
(recovered) to a level of;
A 15 inches of vacuum
B 10 inches of vacuum
C 4 inches of vacuum
D 0 inches of vacuum - ANSWER B 10 inches of vacuum
What conditions allow for a system to be opened and repaired without recovering the
refrigerant to the required vacuum level?
A A system with a large leak and internal pressure of 0 psig
B A system that is undergoing a major component replacement
C A system that uses a CFC refrigerant
D A system that has a non-operational compressor - ANSWER A
A system with a large leak and internal pressure of 0 psig
A crankcase heater is often used to prevent refrigerant from mixing with compressor oil during
periods of:
ALow ambient temperature
, B High ambient temperature
C Low humidity
D High humidity - ANSWER A
Low ambient temperature
Leaks must be repaired on industrial process and refrigeration units with a 50-pound charge or
greater when the annualized leak rate reaches _____ or more.
A 10%
B 20%
C 30%
D 40% - ANSWER C
30%
When dehydrating a system, it should be evacuated to a minimum level of;
A 30 inches of Mercury
B 25,000 Microns
C 500 Microns
D EPA does not have a requirement - ANSWER C
500 Microns
All HVAC/R systems must be protected by a;
A Low-pressure switch
B High-pressure switch
C Compressor impedance overload
D Pressure relief valve - ANSWER D
Pressure relief valve
