EPA_608_Certification__EPA_608_ LATEST UPDATE ACTUAL EXAM WITH COMPLETE SOLUTION
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Course
2024 EPA 608 CERTIFICATION, EPA 608
Institution
2024 EPA 608 CERTIFICATION, EPA 608
EPA_608_Certification__EPA_608_ LATEST UPDATE ACTUAL EXAM WITH COMPLETE SOLUTION
The EPA considers a major repair to be the replacement of what 4 items? - answer;1.Evaporator
2.Condenser 3.Compressor
4.Auxillary Heat Exchanger
What is EPA 608 Type I certification? - answer; Persons who maint...
The EPA considers a major repair to be the replacement of what 4 items? -
answer>>1.Evaporator
2.Condenser
3.Compressor
4.Auxillary Heat Exchanger
What is EPA 608 Type I certification? - answer>>Persons who maintain,
service, repair, or dispose of small appliances (containing 5 pounds of
refrigerant (or less).
What is EPA 608 Type II certification? - answer>>Persons who maintain,
service, repair, or dispose of high and very high pressure appliances. Except
small appliances and motor vehicle air conditioning systems.
What is EPA 608 Type III certification? - answer>>Persons who maintain,
service, repair, or dispose of low pressure appliances.
What is EPA 608 Universal certification? - answer>>Persons who maintain,
service, repair, or dispose of both low and high pressure equipment, as well
as appliances.
HCFC's - answer>>HydroChloroFluoroCarbons
,What are HydroChloroFluoroCarbons? - answer>>Commonly known as
HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon.
A recovery cylinder must not be filled more than % of it's capacity by
weight? - answer>>80%
How should refrigerant cylinders be shipped? - answer>>Up-right with proper
DOT classification tags.
What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will also
work with CFC's and HCFC's. - answer>>Polyolester
HCFC's have very low atmospheric concentrations measured in parts per? -
answer>>Trillion
All cooling systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds ? - answer>>15%
Medium-pressure appliance can use which of the following refrigerants:
R-12
R-22
R-123
R-11 - answer>>R-12
,To Convert From Inches of Mercury To Millimeters of Mercury Absolute
the Inches of Mercury by 25.4 and the result from 760
Divide, Subract
Multiply, Add
Multiply, Subtract
Divide, Add - answer>>Multiply, Subtract
When the refrigerant is put back into a Type III chiller, following recovery and
system repair, where is it added? - answer>>The charging valve on the
evaporator.
What method is used to find suspected water tube leaks in chillers? -
answer>>Hydrostatic (tube) test
What temperature should be attained when removing oil from a low pressure
system to ensure a lower level of refrigerants in the oil? - answer>>130-
Degrees F
The typical design burst pressure for a rupture disc is what? - answer>>15
PSIG
Excessive moisture collection in the purge unit can indicate what? -
answer>>Tube Leakage
, Vacuum pumps need to be capable of pulling what level of vacuum? -
answer>>500 microns
All refrigeration systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds ? - answer>>35%
The most efficient method of leak checking a charged low-pressure system is
to use? - answer>>Controlled hot water or heater blankets.
Systems with open drive compressors are prone to leak where? - answer>>At
the shaft seal.
What does ASHRAE standard 15 require? - answer>>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.
TLV-TWA - answer>>Threshold Limit Value, Time Weighted Average
A-1 Group Refrigerants only require what? - answer>>Oxygen Deprivation
Sensor
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