EPA 608 Practice exam type 1 solved correctly

EPA 608 Practice exam type 1 solved correctly The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. Restricted to technicians who are EPA certified and refrigerant recovery A small Pliance is defined as a system that is Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is below 15 pounds. System dependent You must have a self-contained recovery machine available unless you only work on Small appliances Recovery devices for use with small appliances must be capable of Recovering 90% of the refrigerant when the compressor is operating The hydrocarbon refrigerant approved for retrofit into existing household refrigerators is None. Hydrocarbons are not approved for any retrofit applications New household refrigerators with a charge of less than 57 grams (2 ounces weight) can use any of the following refrigerants, except. R-1235yf And exempt refrigerant is any refrigerant that has a 0 Ozone depletion potential (0 ODP) any global warming potential (GWP) equal to or lower than carbon dioxide, that is a GWP of _________ or less. 1 What is not a small appliance? An MVAC-like system that holds 3 pounds of R-22 Any system with a charger less than ________ pounds can you system dependent recovery equipment. 15 Anytime pressurized nitrogen is put into the system, the nitrogen gas Maybe vented to the ambient air When a tank of mixed refrigerant is sent to a reclaimer, they can Either refuse to except the refrigerant or charge extra for processing it A passive system dependent recovery process Recovered refrigerant in a non-pressurized container What is the pressure of a storage cylinder of R-134A, that is stored in a room where the temperature is 100°F? 124 PSIG What is the pressure of a storage cylinder of R-404A, that is stored in a room where the temperature is 100°F? 237 psig Any refrigerant that is vented off the top of the charging cylinder Must be recovered Recovery of refrigerant cannot begin if the initial pressure in the system is 0 psig What is the pressure of the storage cylinder of R-410a, that is stored in a room where the temperature is 100°F? 319 psig To reach the necessary recovery level, when using a ________, it will most likely be essential to heat and strike the compressor with a rubber mallet to release any refrigerant. Passive recovery devices on a small appliance with a non-operating compressor You must know the ________ before beginning a refrigerant recovery. Type of refrigerant that is in the system Nitrogen tanks should always be equipped with a ________. Pressure regulator and pressure relief valve downstream of the regulator If a large leak of refrigerant occurs, __________. Immediately vacate in naturally ventilate the area A very large refrigerant leak can cause Suffocation because refrigerants Are heavier than air and displace oxygen Always _____________ when connecting or disconnecting refrigeration hoses. 1.) wear safety eyewear and butyl-lined gloves 2.) verify the hoses are rated for the refrigerant being used 3.) avoid trapping liquid refrigerant in the hoses CFC and HCFC refrigerants can decompose to form Hydrochloric and hydrofluoric acids Applying heat, with a heat gun, to the compressor; Can help vaporize any trapped liquid refrigerant during recovery. Which HC refrigerant is allowed for use in new domestic small appliances? R-600a Technicians who perform sealed system service on small points is must have Type 1 or universal certification Recovering multiple types of refrigerant in the same cyli