EPA 608 Type 2 Exam Questions Fully Solved Latest Update 2025 Already Passed
Technicians maintaining, servicing, repairing or disposing of high pressure or very high-pressure
appliances, except small appliances and MVAC, must be certified either as a Universal Technician or a
______ ___. - Answers Type 2
After the installation of any type of system, the unit should be pressurized with _____ and _____
checked. - Answers nitrogen leak
Nitrogen is an ______ gas. - Answers inert
In order to determine the general area of a leak, technicians should use a _____ or _____ leak detector.
- Answers electronic ultrasonic
After locating the general area of a leak, ______ ______ are used to pinpoint it. - Answers soap bubbles
A refrigeration unit using an open compressor that has not been used in several months is likely to leak
from the rotating shaft ______. - Answers seal
During a visual inspection of any type of system, _____ of _____ are an indicator of a refrigerant leak. -
Answers traces oil
Excessive ________, caused by a low refrigerant charge, is an indication of a leak in a high-pressure
system. - Answers superheat
A low ______ _______ may be the cause of excessive superheat in a high-pressure system. - Answers
refrigerant charge
Epa regulations require that all comfort cooling appliances containing more than _____ lbs. of
refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Answers 50 15
Epa regulations require that all commercial and industrial process refrigeration systems containing more
than _____ lbs. of refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Answers
50 35
Recovered refrigerants may contain _____, moisture, and oil. - Answers acids
Recovered refrigerants may contain acids, ______, and oil. - Answers moisture
Recovered refrigerants may contain acids, moisture, and ________. - Answers oil
Because of the acids, moisture, and oil that may be in recovered refrigerants, it is necessary to
frequently check and change both the _____ and _____ on recycling machines. - Answers oil filter
Recycling and Recovery machines using ______ compressors may overheat when pulling a deep vacuum.
- Answers hermetic
, Recycling and Recovery machines using hermetic compressors may overheat when pulling a deep
vacuum because the unit relies on the flow of ______ through the compressor for ______. - Answers
refrigerant cooling
Before using a recovery unit, you should always check the _______ _______ _______, the oil level of the
unit, and evacuate and recover any remaining refrigerant in the unit's receiver. - Answers service valve
positions
Before using a recovery unit, you should always check the service valve positions, the _____ _____ of
the unit, and evacuate and recover an remaining refrigerant in the unit's receiver. - Answers oil level
Before using a recovery unit, you should always check the service valve positions, the oil level of the unit
and evacuate and recover an remaining refrigerant in the unit's ________. - Answers receiver
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must ______ the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the filter, and evacuate. Exception: technicians working with R - 134 A. - Answers purge
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by ______ as much of the first refrigerant as
possible, change the filter, and evacuate. Exception: technicians working with R - 134 A. - Answers
recovering
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the ______, and evacuate. Exception: technicians working with R - 134 A. - Answers
filter
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the filter, and ______. Exception: technicians working with R - 134 A. - Answers
evacuate
Recovering refrigerant in the vapor phase will minimize the ______ of oil. - Answers loss
Recovering refrigerant in the ______ phase can ______ recovery time. - Answers liquid reduce
The technician may choose to _____ up the recovery process by packing the recovery cylinder in _____
and/or applying heat to the appliance. - Answers speed ice
The technician may choose to speed up the recovery process by packing the recovery cylinder in ice
and/or applying ______ to the appliance. - Answers heat
After recovering refrigerant in the liquid phase, any remaining ______ is _______ by the recovery
system. - Answers vapor condensed
Technicians maintaining, servicing, repairing or disposing of high pressure or very high-pressure
appliances, except small appliances and MVAC, must be certified either as a Universal Technician or a
______ ___. - Answers Type 2
After the installation of any type of system, the unit should be pressurized with _____ and _____
checked. - Answers nitrogen leak
Nitrogen is an ______ gas. - Answers inert
In order to determine the general area of a leak, technicians should use a _____ or _____ leak detector.
- Answers electronic ultrasonic
After locating the general area of a leak, ______ ______ are used to pinpoint it. - Answers soap bubbles
A refrigeration unit using an open compressor that has not been used in several months is likely to leak
from the rotating shaft ______. - Answers seal
During a visual inspection of any type of system, _____ of _____ are an indicator of a refrigerant leak. -
Answers traces oil
Excessive ________, caused by a low refrigerant charge, is an indication of a leak in a high-pressure
system. - Answers superheat
A low ______ _______ may be the cause of excessive superheat in a high-pressure system. - Answers
refrigerant charge
Epa regulations require that all comfort cooling appliances containing more than _____ lbs. of
refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Answers 50 15
Epa regulations require that all commercial and industrial process refrigeration systems containing more
than _____ lbs. of refrigerant MUST be repaired when the annual leak rate exceeds _____ %. - Answers
50 35
Recovered refrigerants may contain _____, moisture, and oil. - Answers acids
Recovered refrigerants may contain acids, ______, and oil. - Answers moisture
Recovered refrigerants may contain acids, moisture, and ________. - Answers oil
Because of the acids, moisture, and oil that may be in recovered refrigerants, it is necessary to
frequently check and change both the _____ and _____ on recycling machines. - Answers oil filter
Recycling and Recovery machines using ______ compressors may overheat when pulling a deep vacuum.
- Answers hermetic
, Recycling and Recovery machines using hermetic compressors may overheat when pulling a deep
vacuum because the unit relies on the flow of ______ through the compressor for ______. - Answers
refrigerant cooling
Before using a recovery unit, you should always check the _______ _______ _______, the oil level of the
unit, and evacuate and recover any remaining refrigerant in the unit's receiver. - Answers service valve
positions
Before using a recovery unit, you should always check the service valve positions, the _____ _____ of
the unit, and evacuate and recover an remaining refrigerant in the unit's receiver. - Answers oil level
Before using a recovery unit, you should always check the service valve positions, the oil level of the unit
and evacuate and recover an remaining refrigerant in the unit's ________. - Answers receiver
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must ______ the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the filter, and evacuate. Exception: technicians working with R - 134 A. - Answers purge
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by ______ as much of the first refrigerant as
possible, change the filter, and evacuate. Exception: technicians working with R - 134 A. - Answers
recovering
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the ______, and evacuate. Exception: technicians working with R - 134 A. - Answers
filter
Technicians working with multiple refrigerants, before recovering and/or recycling a different
refrigerant, must purge the recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the filter, and ______. Exception: technicians working with R - 134 A. - Answers
evacuate
Recovering refrigerant in the vapor phase will minimize the ______ of oil. - Answers loss
Recovering refrigerant in the ______ phase can ______ recovery time. - Answers liquid reduce
The technician may choose to _____ up the recovery process by packing the recovery cylinder in _____
and/or applying heat to the appliance. - Answers speed ice
The technician may choose to speed up the recovery process by packing the recovery cylinder in ice
and/or applying ______ to the appliance. - Answers heat
After recovering refrigerant in the liquid phase, any remaining ______ is _______ by the recovery
system. - Answers vapor condensed
