UPDATED EPA 608 QUIZLET (2024)
the state of the refrigerant entering the metering device is? - Ans-A subcooled high pressure liquid.
what type of refrigerant is used in VERY high-pressure appliances? - Ans-R-503
what type of refrigerant is used in MEDIUM pressure appliances? - Ans-R-500
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the state of the refrigerant entering the metering
what type of refrigerant is used in very high pres
what type of refrigerant is used in medium pressur
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UPDATED EPA 608 QUIZLET (2024)
the state of the refrigerant entering the metering device is? - Ans-A subcooled high pressure liquid.
what type of refrigerant is used in VERY high-pressure appliances? - Ans-R-503
what type of refrigerant is used in MEDIUM pressure appliances? - Ans-R-500
what type of refrigerant is used in HIGH pressure appliances? - Ans-R-410A and R-22
what device is located at the END of the liquid line? - Ans-The expansion device.
what type of refrigerants are the LEAST harmful to the ozone layer? - Ans-HFC refrigerants.
How much money does the EPA offer to individuals who report information about others who vent
refrigerants into the atmosphere? - Ans-$10,000.
which class of refrigerants does R-22 fall into? - Ans-The HCFC class. (hydrochloroflurocarbons)
which gas should be used when checking for leaks in various systems? - Ans-Nitrogen.
which term describes the process of changing a refrigerant from a liquid to a gas using HEAT? - Ans-
Latent heat.
refrigerants in the SUCTION line are in what phase and state? - Ans-Cold vapor.
how many miles above the Earth's surface does the ozone layer in the stratosphere extend? - Ans-31
miles.
what year was the Montreal Protocol put in place? - Ans-1989.
, refrigerant recovery equipment should be checked for (blank) on a daily basis? - Ans-Refrigerant leaks
and oil levels.
should recovery machines be used on equipment that contains hydrogen? - Ans-NO.
which purity test is used to determine the type of refrigerant? - Ans-ARI 700.
what type of unit only requires ONE service connection? - Ans-self-contained recovery units.
air will cause (blank) discharge pressures in a refrigeration system. - Ans-Higher.
a strong odor is around during the recovery process. what is most likely the cause of this? - Ans-A
compressor burnout.
what is the best way (position) to transport refrigeration cylinders? - Ans-Upright.
you can only accurately read refrigerant pressure with a stable (blank)? - Ans-Temperature.
an explosion can occur if (blank) is vented in an enclosed environment? - Ans-Hydrogen.
can refrigerants be mixed in a recovery tank? - Ans-NO.
what is the state of refrigerant leaving the liquid receiver? - Ans-High pressure liquid.
what is the minimum microns a vacuum pump must pull when evacuating a system? - Ans-500 microns.
what is usually contained in refrigerants made before 1950? - Ans-SO2. (sulfur dioxide)
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