EPA SECTION 608 CORE SECTION EXAM | QUESTIONS AND
ANSWERS | VERIFIED ANSWERS | LATEST EXAM
Always measure the final system vacuum _____. - CORRECT ANSWER -
With the system isolated from the vacuum pump.
The fill level of a recovery cylinder can be determined by _____. - CORRECT
ANSWER - Mechanical-float or electronic shut off devices/The weight of
cylinder. (Both A&B)
*Which of the following proves that HCFC's are in the stratosphere? -
CORRECT ANSWER - HCFC's found in air samples from the stratosphere.
A system containing a flammable refrigerant must have the process tubes or
service connection marked with a color marking that extends a minimum of
_____ in both directions. - CORRECT ANSWER - 1 Inch.
*Approved refrigerant recovery cylinders have _____. - CORRECT ANSWER
- Yellow tops and gray bodies.
After proper R-410A refrigerant recovery, you should use _____ to leak check
the system. - CORRECT ANSWER - Nitrogen, And if a trace gas is desired,
add a small amount of R-410A. 🌬
The _____ program identifies alternative refrigerants for use - CORRECT
ANSWER - SNAP. (Significant New Alternatives Policy)
An example of an HCFC refrigerant is. - CORRECT ANSWER - R-123.
,_____ refrigerants have the highest ODP. (Ozone Depletion Potential) -
CORRECT ANSWER - CFC's. (Chlorofluorocarbons)
*If R-410A was added to an R-22 system, _____. - CORRECT ANSWER -
Recover the mixture in a separate recovery tank.
_____ means that the refrigerant blend has a range of bubble or dew points at a
constant pressure. - CORRECT ANSWER - Temperature glide. 🌡⛷
When a system is operating, the _____ changes a low-pressure vapor to a high-
pressure vapor. - CORRECT ANSWER - Compressor.
*______ damages stratospheric ozone. - CORRECT ANSWER - HCFC's.
(Hydro-chlorofluorocarbon)
Which refrigerant's must be recovered _____. - CORRECT ANSWER - All
non-exempt refrigerants
Never fill a refillable refrigerant cylinder beyond ________. - CORRECT
ANSWER - 80% of its capacity by weight
Under the EPA's new regulations, when can disposable cylinders be used to
recover refrigerant? - CORRECT ANSWER - Never
A "self-contained" recovery device _____. - CORRECT ANSWER - Removes
refrigerant with the assistance of components in the appliance
What action violates the EPA's prohibition on venting? - CORRECT
ANSWER - Opening the system without properly recovering the refrigerant
first
, ______ Returns refrigerant to a new product specifications and requires
chemical analysis to verify the purity to (Air Conditioning, Heating, &
Refrigeration Institute) AHRI-700 standards. - CORRECT ANSWER -
Reclaiming
When a system is operating, refrigerant enters the compressor of a refrigeration
system as a ______. - CORRECT ANSWER - Superheated Vapor
Which of the following is NOT classified as an A3 refrigerant? - CORRECT
ANSWER - R-1234yf
The service hose between the system and the vacuum pump should ______. -
CORRECT ANSWER - Be as short as possible
Why is venting an "exempt refrigerant" legal? - CORRECT ANSWER -
Because the EPA has determined that the refrigerant does not pose a threat to the
environment if released.
EPA regulations only allow recovered or recycled refrigerant to be ______. -
CORRECT ANSWER - Charged into the same or another appliance owned by
the same person.
All non-exempt refrigerants ______. - CORRECT ANSWER - Must be
recovered before opening or disposing of appliances
What is being done in the U.S. to stop damage to the stratospheric ozone layer?
- CORRECT ANSWER - Eliminating the use of CFC's and HCFC's
refrigerants.
ANSWERS | VERIFIED ANSWERS | LATEST EXAM
Always measure the final system vacuum _____. - CORRECT ANSWER -
With the system isolated from the vacuum pump.
The fill level of a recovery cylinder can be determined by _____. - CORRECT
ANSWER - Mechanical-float or electronic shut off devices/The weight of
cylinder. (Both A&B)
*Which of the following proves that HCFC's are in the stratosphere? -
CORRECT ANSWER - HCFC's found in air samples from the stratosphere.
A system containing a flammable refrigerant must have the process tubes or
service connection marked with a color marking that extends a minimum of
_____ in both directions. - CORRECT ANSWER - 1 Inch.
*Approved refrigerant recovery cylinders have _____. - CORRECT ANSWER
- Yellow tops and gray bodies.
After proper R-410A refrigerant recovery, you should use _____ to leak check
the system. - CORRECT ANSWER - Nitrogen, And if a trace gas is desired,
add a small amount of R-410A. 🌬
The _____ program identifies alternative refrigerants for use - CORRECT
ANSWER - SNAP. (Significant New Alternatives Policy)
An example of an HCFC refrigerant is. - CORRECT ANSWER - R-123.
,_____ refrigerants have the highest ODP. (Ozone Depletion Potential) -
CORRECT ANSWER - CFC's. (Chlorofluorocarbons)
*If R-410A was added to an R-22 system, _____. - CORRECT ANSWER -
Recover the mixture in a separate recovery tank.
_____ means that the refrigerant blend has a range of bubble or dew points at a
constant pressure. - CORRECT ANSWER - Temperature glide. 🌡⛷
When a system is operating, the _____ changes a low-pressure vapor to a high-
pressure vapor. - CORRECT ANSWER - Compressor.
*______ damages stratospheric ozone. - CORRECT ANSWER - HCFC's.
(Hydro-chlorofluorocarbon)
Which refrigerant's must be recovered _____. - CORRECT ANSWER - All
non-exempt refrigerants
Never fill a refillable refrigerant cylinder beyond ________. - CORRECT
ANSWER - 80% of its capacity by weight
Under the EPA's new regulations, when can disposable cylinders be used to
recover refrigerant? - CORRECT ANSWER - Never
A "self-contained" recovery device _____. - CORRECT ANSWER - Removes
refrigerant with the assistance of components in the appliance
What action violates the EPA's prohibition on venting? - CORRECT
ANSWER - Opening the system without properly recovering the refrigerant
first
, ______ Returns refrigerant to a new product specifications and requires
chemical analysis to verify the purity to (Air Conditioning, Heating, &
Refrigeration Institute) AHRI-700 standards. - CORRECT ANSWER -
Reclaiming
When a system is operating, refrigerant enters the compressor of a refrigeration
system as a ______. - CORRECT ANSWER - Superheated Vapor
Which of the following is NOT classified as an A3 refrigerant? - CORRECT
ANSWER - R-1234yf
The service hose between the system and the vacuum pump should ______. -
CORRECT ANSWER - Be as short as possible
Why is venting an "exempt refrigerant" legal? - CORRECT ANSWER -
Because the EPA has determined that the refrigerant does not pose a threat to the
environment if released.
EPA regulations only allow recovered or recycled refrigerant to be ______. -
CORRECT ANSWER - Charged into the same or another appliance owned by
the same person.
All non-exempt refrigerants ______. - CORRECT ANSWER - Must be
recovered before opening or disposing of appliances
What is being done in the U.S. to stop damage to the stratospheric ozone layer?
- CORRECT ANSWER - Eliminating the use of CFC's and HCFC's
refrigerants.
