EPA Section 608 Universal Certification
Pre-assessment
______________ carries chlorine. - ANS-R-22
______________ returns refrigerant to new product specifications and calls for chemical
analysis to verify the purity to AHRI-700 requirements. - ANS-Reclaiming
________________ is one approach of eliminating moisture from refrigerant in a gadget. -
ANS-Using a Filter Drier
_________________ make(s) HFO refrigerants less flammable than HC refrigerants. -
ANS-Fluorine
________________is an authorized refrigerant for brand spanking new household fridges,
freezers, and combination refrigeration/freezers. - ANS-R-600a
A business enterprise has a chiller that makes use of 60% of the chiller cooling potential for
cooling an business method and 40% to chill the workplace spaces inside the factory. Which
leak price class is this chiller in? - ANS-industrial technique refrigeration
A airtight compressor overheats if operated in a vacuum because _________. - ANS-The
compressor motor makes use of the waft of refrigerant through the compressor for cooling.
A passive recuperation device can be used for ________________. - ANS-Both a small
commercial stroll-in freezer with a charge of 14 pounds and a domestic refrigerator with a rate of
3 kilos.
A method stub is a ____________________ - ANS-immediately piece of tubing that is entered
the usage of a piercing access valve.
A water-cooled restoration unit commonly has a _________________. - ANS-lower
recuperation tank stress and consequently faster restoration fee
After a leaking system that has been repaired has passed the initial verification leak take a look
at, when have to the comply with-up verification check be performed? - ANS-within 10 days
After January 1, 2019, any industrial refrigeration structures containing 50 pounds or extra of
refrigerant need to be repaired if the leak rate exceeds _______________. - ANS-20%
, All new recovery system need to __________________________. - ANS-Be EPA accepted and
have an EPA-accredited certification label connected.
An instance of an HCFC refrigerant is: - ANS-R-123
An exempt refrigerant is any refrigerant that has a zero-ozone depletion ability (0 ODP) and a
global warming capacity (GWP) equal to or lower than carbon dioxide, that is a GWP of ___ or
much less. - ANS-1
Anytime pressurized nitrogen is placed into a device, the nitrogen fuel __________. - ANS-can
be vented to the ambient air.
ASHRAE Standard 15 calls for the use of room sensors and alarms to locate
________________. - ANS-refrigerant
At 23.Eight in Hg, R-123 boils at about: - ANS-15 F
Before recharging any flammable hydrocarbon or HFO refrigerant, constantly ______________.
- ANS-Electrically ground the recuperation gadget and recovery tank, verify the refrigeration
machine is grounded, installation a sparkling filter drier, efficiently whole a standing-stress leak
take a look at at the maximum gadget pressure, after which evacuate to at the least 500
microns.
Before recovering refrigerant into an empty recuperation tank, you must ___________. -
ANS-Evacuate the cylinder
EPA recommends this carrier exercise to preserve refrigerant. - ANS-Find and repair leaks in
the machine.
Every recovery and recycling unit need to be _____________. - ANS-classified as licensed to
meet EPA's requirements
For a belt-pushed non-airtight compressor system, the _____________________ is maximum
in all likelihood to leak if the device has now not been operated for numerous months. -
ANS-Shaft seal
For low stress chiller, it's far exceptional to start refrigerant recovery with ______ elimination to
avoid freezing of the water in the chiller barrels - ANS-liquid.
HFO refrigerants are miscible in_________________ lubricants? - ANS-POE lubricants
How does the GWP of R-441A examine to the GWPs of R-410A? - ANS-The GWP of R-441A is
notably decrease.
Pre-assessment
______________ carries chlorine. - ANS-R-22
______________ returns refrigerant to new product specifications and calls for chemical
analysis to verify the purity to AHRI-700 requirements. - ANS-Reclaiming
________________ is one approach of eliminating moisture from refrigerant in a gadget. -
ANS-Using a Filter Drier
_________________ make(s) HFO refrigerants less flammable than HC refrigerants. -
ANS-Fluorine
________________is an authorized refrigerant for brand spanking new household fridges,
freezers, and combination refrigeration/freezers. - ANS-R-600a
A business enterprise has a chiller that makes use of 60% of the chiller cooling potential for
cooling an business method and 40% to chill the workplace spaces inside the factory. Which
leak price class is this chiller in? - ANS-industrial technique refrigeration
A airtight compressor overheats if operated in a vacuum because _________. - ANS-The
compressor motor makes use of the waft of refrigerant through the compressor for cooling.
A passive recuperation device can be used for ________________. - ANS-Both a small
commercial stroll-in freezer with a charge of 14 pounds and a domestic refrigerator with a rate of
3 kilos.
A method stub is a ____________________ - ANS-immediately piece of tubing that is entered
the usage of a piercing access valve.
A water-cooled restoration unit commonly has a _________________. - ANS-lower
recuperation tank stress and consequently faster restoration fee
After a leaking system that has been repaired has passed the initial verification leak take a look
at, when have to the comply with-up verification check be performed? - ANS-within 10 days
After January 1, 2019, any industrial refrigeration structures containing 50 pounds or extra of
refrigerant need to be repaired if the leak rate exceeds _______________. - ANS-20%
, All new recovery system need to __________________________. - ANS-Be EPA accepted and
have an EPA-accredited certification label connected.
An instance of an HCFC refrigerant is: - ANS-R-123
An exempt refrigerant is any refrigerant that has a zero-ozone depletion ability (0 ODP) and a
global warming capacity (GWP) equal to or lower than carbon dioxide, that is a GWP of ___ or
much less. - ANS-1
Anytime pressurized nitrogen is placed into a device, the nitrogen fuel __________. - ANS-can
be vented to the ambient air.
ASHRAE Standard 15 calls for the use of room sensors and alarms to locate
________________. - ANS-refrigerant
At 23.Eight in Hg, R-123 boils at about: - ANS-15 F
Before recharging any flammable hydrocarbon or HFO refrigerant, constantly ______________.
- ANS-Electrically ground the recuperation gadget and recovery tank, verify the refrigeration
machine is grounded, installation a sparkling filter drier, efficiently whole a standing-stress leak
take a look at at the maximum gadget pressure, after which evacuate to at the least 500
microns.
Before recovering refrigerant into an empty recuperation tank, you must ___________. -
ANS-Evacuate the cylinder
EPA recommends this carrier exercise to preserve refrigerant. - ANS-Find and repair leaks in
the machine.
Every recovery and recycling unit need to be _____________. - ANS-classified as licensed to
meet EPA's requirements
For a belt-pushed non-airtight compressor system, the _____________________ is maximum
in all likelihood to leak if the device has now not been operated for numerous months. -
ANS-Shaft seal
For low stress chiller, it's far exceptional to start refrigerant recovery with ______ elimination to
avoid freezing of the water in the chiller barrels - ANS-liquid.
HFO refrigerants are miscible in_________________ lubricants? - ANS-POE lubricants
How does the GWP of R-441A examine to the GWPs of R-410A? - ANS-The GWP of R-441A is
notably decrease.
