EPA 608 Type 2 Practice Exam
Questions and Answers
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. - ANS-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 - ANS-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 - ANS-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 - ANS-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% - ANS-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 - ANS-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 - ANS-D
Pressure relief valve
Proper recovery techniques begin with the use of appropriate recovery equipment that
has been certified by;
A EPA only
B Manufacturers approved by UL
C EPA approved laboratory
D EPA field supervisors - ANS-C
EPA approved laboratory
Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as Type _______
substances.
A B-1
B B-2
C A-1
D A-2 - ANS-A-1
EPA regulations require that all Industrial Process Refrigeration (IPR) systems
containing more than 50 pounds of refrigerant MUST be repaired when the annual leak
rate exceeds;
A 10 %
B 20 %
C 30 %
D 40 % - ANS-30 %
Unless plans are made to replace a system with a leak rate that exceeds the maximum
leak rate, repairs must be made within;
A 30 days.
B 45 days.
C 60 days
D 90 days. - ANS-A
30 days.
Questions and Answers
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. - ANS-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 - ANS-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 - ANS-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 - ANS-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% - ANS-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 - ANS-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 - ANS-D
Pressure relief valve
Proper recovery techniques begin with the use of appropriate recovery equipment that
has been certified by;
A EPA only
B Manufacturers approved by UL
C EPA approved laboratory
D EPA field supervisors - ANS-C
EPA approved laboratory
Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as Type _______
substances.
A B-1
B B-2
C A-1
D A-2 - ANS-A-1
EPA regulations require that all Industrial Process Refrigeration (IPR) systems
containing more than 50 pounds of refrigerant MUST be repaired when the annual leak
rate exceeds;
A 10 %
B 20 %
C 30 %
D 40 % - ANS-30 %
Unless plans are made to replace a system with a leak rate that exceeds the maximum
leak rate, repairs must be made within;
A 30 days.
B 45 days.
C 60 days
D 90 days. - ANS-A
30 days.
