UPDATED EPA 608 QUIZLET (2023)Questions With 100%Verified Answers(Guaranteed Success)

UPDATED EPA 608 QUIZLET (2023)Questions With 100%Verified Answers(Guaranteed Success) the state of the refrigerant entering the metering device is? - correct answer...A subcooled high pressure liquid. what type of refrigerant is used in VERY high-pressure appliances? - correct answer...R-503 what type of refrigerant is used in MEDIUM pressure appliances? - correct answer...R-500 what type of refrigerant is used in HIGH pressure appliances? - correct answer...R-410A and R-22 what device is located at the END of the liquid line? - correct answer...The expansion device. what type of refrigerants are the LEAST harmful to the ozone layer? - correct answer...HFC refrigerants. How much money does the EPA offer to individuals who report information about others who vent refrigerants into the atmosphere? - correct answer...$10,000. which class of refrigerants does R-22 fall into? - correct answer...The HCFC class. (hydrochloroflurocarbons) which gas should be used when checking for leaks in various systems? - correct answer...Nitrogen. which term describes the process of changing a refrigerant from a liquid to a gas using HEAT? - correct answer...Latent heat. refrigerants in the SUCTION line are in what phase and state? - correct answer...Cold vapor. how many miles above the Earth's surface does the ozone layer in the stratosphere extend? - correct answer...31 miles. what year was the Montreal Protocol put in place? - correct answer...1989. refrigerant recovery equipment should be checked for (blank) on a daily basis? - correct answer...Refrigerant leaks and oil levels. should recovery machines be used on equipment that contains hydrogen? - correct answer...NO. which purity test is used to determine the type of refrigerant? - correct answer...ARI 700. what type of unit only requires ONE service connection? - correct answer...self-contained recovery units. air will cause (blank) discharge pressures in a refrigeration system. - correct answer...Higher. a strong odor is around during the recovery process. what is most likely the cause of this? - correct answer...A compressor burnout. what is the best way (position) to transport refrigeration cylinders? - correct answer...Upright. you can only accurately read refrigerant pressure with a stable (blank)? - correct answer...Temperature. an explosion can occur if (blank) is vented in an enclosed environment? - correct answer...Hydrogen. can refrigerants be mixed in a recovery tank? - correct answer...NO. what is the state of refrigerant leaving the liquid receiver? - correct answer...High pressure liquid. what is the minimum microns a vacuum pump must pull when evacuating a system? - correct answer...500 microns. what is usually contained in refrigerants made before 1950? - correct answer...SO2. (sulfur dioxide) what prevents transient slugs of liquid from getting into the compressor? - correct answer...Accumulator. what is the filter drier responsible for removing? - correct answer...Moisture and Particulates. can the compressor compress liquid? - correct answer...NO. what is the best leak-checking procedure for a pressure decay test? - correct answer...Nitrogen. when the annual leak rate exceeds (blank), all comfort cooling systems with more than 50lb of refrigerant must be repaired. - correct answer...15% True or False. the receiver is not part of the low side of a system located in a refrigeration system? - correct answer...True. how often should leaks be checked in the recovery or recycling unit for commercial refrigeration equipment? - correct answer...3 months. how can you check if there is excess air / non-condensables in the tank? - correct answer...Checking the pressure inside the recovery tank. Reference the pressure / temperature chart. what type of system can a vacuum pump be used on for recovery? - correct answer...System-dependent (passive) recovery. when using a system-dependent recovery system with an operating compressor, where should the refrigerant be recovered from? - correct answer...High side of the system. when using a system-dependent recovery system with a non-operating compressor, where should the refrigerant be recovered from? - correct answer...Both high and low side. how can you release trapped refrigerants in the oil during recovery? - correct answer...Heat and tap the compressor with a mallet. when should piercing type valves be used and what is a common problem of these valves? - correct answer...Fitting tend to leak over time and should not be left on appliances. when was it established that it was a violation to vent CFCs or HCFCs? - correct answer...July 1st, 1992. when was it required for recovery/recycling equipment to be certified and labeled by the EPA? - correct answer...November 15th, 1993. when was it established that you needed a certification to service, maintain, or dispose of appliances with refrigerants? This is the same date when the sale of CFCs and HCFCs were restricted to certified technicians only. - correct answer...November 14th, 1994. when did it become a violation to vent HFCs? - correct answer...November 15th, 1995. when were CFCs no longer produced? - correct answer...December 31st, 1995. section 608 of the Federal Clean Air Act requires technicians to what? - correct answer...Recover all refrigerants. the objective of the clean air act is to protect what? - correct answer...The earth's stratosphere. what does HFC (refrigerant) stand for? - correct answer...Hydro Fluoro Carbons. Hydrofluorocarbons. what does CFC (refrigerant) stand for? - correct answer...Chloro Fluoro Carbons. Chlorofluorocarbons. what does ODP stand for? - correct answer...Ozone Depletion Potential. which international treaty agreement was the basis for section 608? - correct answer...The Montreal Protocol. depletion of the ozone is known to cause what 6 things? - correct answer...Crop loss. Increased eye disease. Skin cancer. Deforestation. Reduced marine life. Increased ground level ozone. what date were CFCs phased out? - correct answer...December 31st, 1995. what is EPA 608 type I certification? - correct answer...Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds of refrigerant (or less).