EPA 608 Type 2 Practice Exam
A comfort cooling system that contains 50 pounds or more of R-410A is leaking.
What will be the new maximum allowable annual leak rate starting in 2019?
A 5%
B 10%
C 15%
D 20% - ------------ANSWER: B 10 %
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
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
A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC
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: D 0 inches of vacuum
A new split system should be checked for leaks by;
A pressurizing the system with a few ounces of HCFC-22 and compressed air.
B pressurizing the system with a few ounces of CFC-12 and an inert gas.
C releasing the factory refrigerant charge in the condensing unit.
D pressurizing the system with a few ounces of system refrigerant and an inert gas. -
------------ANSWER: D pressurizing the system with a few ounces of system
refrigerant and an inert gas.
A refrigerant sensor which will sound an alarm and automatically start a ventilation
system in occupied equipment rooms falls under ASHRAE Standard;
A 15
B 34
C 44
D 60 - ------------ANSWER: A 15
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
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 comfort cooling system that contains 50 pounds or more of R-410A is leaking.
What will be the new maximum allowable annual leak rate starting in 2019?
A 5%
B 10%
C 15%
D 20% - ------------ANSWER: B 10 %
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
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
A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC
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: D 0 inches of vacuum
A new split system should be checked for leaks by;
A pressurizing the system with a few ounces of HCFC-22 and compressed air.
B pressurizing the system with a few ounces of CFC-12 and an inert gas.
C releasing the factory refrigerant charge in the condensing unit.
D pressurizing the system with a few ounces of system refrigerant and an inert gas. -
------------ANSWER: D pressurizing the system with a few ounces of system
refrigerant and an inert gas.
A refrigerant sensor which will sound an alarm and automatically start a ventilation
system in occupied equipment rooms falls under ASHRAE Standard;
A 15
B 34
C 44
D 60 - ------------ANSWER: A 15
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
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;
