EPA 608 TYPE 2 PRACTICE 2026 EXAM PREP
SCRIPT FULL QUESTION SET APPROVED
◉ Chlorine Monoxide (CLO). Answer: What chemical has been found
in the stratosphere indicating ozone depletion?
◉ 1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains. Answer: What are 5 Type I appliances?
◉ 1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines. Answer: What are 6 Type II appliances?
◉ Low pressure chiller.. Answer: What is an example of a Type III
appliance?
,◉ When calculating Superheat.. Answer: When is "Dew Point" used?
◉ When calculating Sub-cooling.. Answer: When is "Bubble Point"
used?
◉ EPA requires a service aperature (process stub).. Answer: What
does the EPA require on all Type I equipment that uses Class I or
Class II refrigerants.
◉ Thermostatic Expansion Valve. Answer: TXV
◉ 1.Evaporator
2.Condenser
3.Compressor
4.Auxillary Heat Exchanger. Answer: The EPA considers a major
repair to be the replacement of what 4 items?
◉ The charging valve on the evaporator.. Answer: When the
refrigerant is put back into a Type III chiller, following recovery and
system repair, where is it added?
◉ Hydrostatic (tube) test. Answer: What method is used to find
suspected water tube leaks in chillers?
,◉ 130-Degrees F. Answer: What temperature should be attained
when removing oil from a low pressure system to ensure a lower
level of refrigerants in the oil?
◉ 15 PSIG. Answer: The typical design burst pressure for a rupture
disc is what?
◉ Tube Leakage. Answer: Excessive moisture collection in the purge
unit can indicate what?
◉ 500 microns. Answer: Vacuum pumps need to be capable of
pulling what level of vacuum?
◉ 35%. Answer: All refrigeration systems containing more than 50
lbs. of refrigerant must be repaired when the annual leak rate
exceeds___?
◉ Controlled hot water or heater blankets.. Answer: The most
efficient method of leak checking a charged low-pressure system is
to use?
◉ At the shaft seal.. Answer: Systems with open drive compressors
are prone to leak where?
, ◉ A refrigerant monitor that will sound and alarm and automatically
start a ventilation system in equipment rooms before the refrigerant
concentration reaches the TLV-TWA.. Answer: What does ASHRAE
standard 15 require?
◉ Threshold Limit Value, Time Weighted Average. Answer: TLV-TWA
◉ Oxygen Deprivation Sensor. Answer: A-1 Group Refrigerants only
require what?
◉ "Refrigerant Specific" Mechanical Room Sensor.. Answer: All "B"
rated refrigerants require what?
◉ They are heat removal devices used to transfer process waste heat
to the atmosphere.. Answer: What are Cooling Towers?
◉ 10 psig. Answer: What is the maximum test pressure to use for
pressurizing Type III centrifugal systems with nitrogen?
◉ 36F. Answer: Enough vapor has entered the system and you may
begin charging liquid refrigerant when the refrigerant saturation
temperature increases to?
◉ Small appliances- 5lbs or less. Answer: Type 1
SCRIPT FULL QUESTION SET APPROVED
◉ Chlorine Monoxide (CLO). Answer: What chemical has been found
in the stratosphere indicating ozone depletion?
◉ 1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains. Answer: What are 5 Type I appliances?
◉ 1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines. Answer: What are 6 Type II appliances?
◉ Low pressure chiller.. Answer: What is an example of a Type III
appliance?
,◉ When calculating Superheat.. Answer: When is "Dew Point" used?
◉ When calculating Sub-cooling.. Answer: When is "Bubble Point"
used?
◉ EPA requires a service aperature (process stub).. Answer: What
does the EPA require on all Type I equipment that uses Class I or
Class II refrigerants.
◉ Thermostatic Expansion Valve. Answer: TXV
◉ 1.Evaporator
2.Condenser
3.Compressor
4.Auxillary Heat Exchanger. Answer: The EPA considers a major
repair to be the replacement of what 4 items?
◉ The charging valve on the evaporator.. Answer: When the
refrigerant is put back into a Type III chiller, following recovery and
system repair, where is it added?
◉ Hydrostatic (tube) test. Answer: What method is used to find
suspected water tube leaks in chillers?
,◉ 130-Degrees F. Answer: What temperature should be attained
when removing oil from a low pressure system to ensure a lower
level of refrigerants in the oil?
◉ 15 PSIG. Answer: The typical design burst pressure for a rupture
disc is what?
◉ Tube Leakage. Answer: Excessive moisture collection in the purge
unit can indicate what?
◉ 500 microns. Answer: Vacuum pumps need to be capable of
pulling what level of vacuum?
◉ 35%. Answer: All refrigeration systems containing more than 50
lbs. of refrigerant must be repaired when the annual leak rate
exceeds___?
◉ Controlled hot water or heater blankets.. Answer: The most
efficient method of leak checking a charged low-pressure system is
to use?
◉ At the shaft seal.. Answer: Systems with open drive compressors
are prone to leak where?
, ◉ A refrigerant monitor that will sound and alarm and automatically
start a ventilation system in equipment rooms before the refrigerant
concentration reaches the TLV-TWA.. Answer: What does ASHRAE
standard 15 require?
◉ Threshold Limit Value, Time Weighted Average. Answer: TLV-TWA
◉ Oxygen Deprivation Sensor. Answer: A-1 Group Refrigerants only
require what?
◉ "Refrigerant Specific" Mechanical Room Sensor.. Answer: All "B"
rated refrigerants require what?
◉ They are heat removal devices used to transfer process waste heat
to the atmosphere.. Answer: What are Cooling Towers?
◉ 10 psig. Answer: What is the maximum test pressure to use for
pressurizing Type III centrifugal systems with nitrogen?
◉ 36F. Answer: Enough vapor has entered the system and you may
begin charging liquid refrigerant when the refrigerant saturation
temperature increases to?
◉ Small appliances- 5lbs or less. Answer: Type 1
