EPA Section 608 Exam Questions with 100%
Correct Answers Updated & Verified
Alcohol - ✔️✔️Which of the following could be used to remove ice from the site glass ?
Yellow tops and grey bodies. - ✔️✔️EPA section 608 recovery cylinders can be identified by which
of the following color combinations ?
Cylinders be shipped upright - ✔️✔️For transporting refrigerants, the DOT requires that
_____________________.
R-600a - ✔️✔️Which refrigerant is approved for new refrigerators and freezers ?
90/80 - ✔️✔️Recovery equipment for small appliances must recover ______ % of the refrigerant
in a system with an operative compressor and ______ % in systems with an inoperative
compressor.
15 lbs - ✔️✔️In HFC and HCFC appliances, what is the largest charge that can be removed by
system-dependent recovery equipment ?
R-744 - ✔️✔️What refrigerant does not need to be recovered ?
Check the pressure temperature chart for the ambient temperature where the tank is. -
✔️✔️How might one establish that the refrigerant in a recovery cylinder is contaminated or
mixed ?
there are no drop-in substitutes - ✔️✔️Which is a drop-in substitute for R-410a ?
, May never be used for refrigerant recovery - ✔️✔️Vacuum pumps designed for use in evacuation
and dehydration :
235 PSIG - ✔️✔️What is the approximate pressure for a tank of R-410a in a 80F room ?
Phosgene Gas - ✔️✔️What gas can be caused by heating HFC and CFC refrigerants ?
Inside the refrigerator cabinet - ✔️✔️Which of the following is an area where safety markings are
not required on a refrigerator using R600a ?
Traces of oil refrigerant - ✔️✔️When a leak is suspected in a hermetic system, what might help
locate the leak location ?
Add nitrogen and a trace amount of R-410a - ✔️✔️What should be done to check for leaks in an
empty
R-410a system ?
20 - ✔️✔️In 2019, the leak rate that mandates the EPA requirements for commercial
refrigeration systems is _____ %
10 - ✔️✔️In 2019, the leak rate that mandates the EPA requirements for a comfort cooling
system containing 50 pounds of refrigerant or more is _____ %
18 months - ✔️✔️How long do owners of an R-22 chiller that contains 51 pounds of refrigerant
leaking above the threshold rate have to retire the appliance and replace it ?
Start the recovery cycle by recovering liquid refrigerant - ✔️✔️What will save time when
recovering refrigerant ?
Correct Answers Updated & Verified
Alcohol - ✔️✔️Which of the following could be used to remove ice from the site glass ?
Yellow tops and grey bodies. - ✔️✔️EPA section 608 recovery cylinders can be identified by which
of the following color combinations ?
Cylinders be shipped upright - ✔️✔️For transporting refrigerants, the DOT requires that
_____________________.
R-600a - ✔️✔️Which refrigerant is approved for new refrigerators and freezers ?
90/80 - ✔️✔️Recovery equipment for small appliances must recover ______ % of the refrigerant
in a system with an operative compressor and ______ % in systems with an inoperative
compressor.
15 lbs - ✔️✔️In HFC and HCFC appliances, what is the largest charge that can be removed by
system-dependent recovery equipment ?
R-744 - ✔️✔️What refrigerant does not need to be recovered ?
Check the pressure temperature chart for the ambient temperature where the tank is. -
✔️✔️How might one establish that the refrigerant in a recovery cylinder is contaminated or
mixed ?
there are no drop-in substitutes - ✔️✔️Which is a drop-in substitute for R-410a ?
, May never be used for refrigerant recovery - ✔️✔️Vacuum pumps designed for use in evacuation
and dehydration :
235 PSIG - ✔️✔️What is the approximate pressure for a tank of R-410a in a 80F room ?
Phosgene Gas - ✔️✔️What gas can be caused by heating HFC and CFC refrigerants ?
Inside the refrigerator cabinet - ✔️✔️Which of the following is an area where safety markings are
not required on a refrigerator using R600a ?
Traces of oil refrigerant - ✔️✔️When a leak is suspected in a hermetic system, what might help
locate the leak location ?
Add nitrogen and a trace amount of R-410a - ✔️✔️What should be done to check for leaks in an
empty
R-410a system ?
20 - ✔️✔️In 2019, the leak rate that mandates the EPA requirements for commercial
refrigeration systems is _____ %
10 - ✔️✔️In 2019, the leak rate that mandates the EPA requirements for a comfort cooling
system containing 50 pounds of refrigerant or more is _____ %
18 months - ✔️✔️How long do owners of an R-22 chiller that contains 51 pounds of refrigerant
leaking above the threshold rate have to retire the appliance and replace it ?
Start the recovery cycle by recovering liquid refrigerant - ✔️✔️What will save time when
recovering refrigerant ?
