EPA 608 Practice Test #1 exam 2023 with 100% correct answers

What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine Halocarbon Chlorofluorocarbons (CFCs) consist of? Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? Hydrogen CFCs are damaging to what layer of the ozone layer? Stratospheric Of the three common types of refrigerants this one has the highest ozone depletion potential (ODP) CFCs These test methods are assumed by the EPA as the most effective methods for locating the general area of small leaks Electronic and ultrasonic After recovery of a system, if the pressure rises above ambient pressure then what is most likely happening? Trapped refrigerant is probably boiling off In cases where the refrigerant cannot be reclaimed due to contamination with other refrigerants, what must be done to the refrigerant? Must be destroyed by incineration at an approved facility Where should the system vacuum gauge be connected? As close as possible to the system being evacuated Import of CFCs will be banned after December 31, what year? 1995 A second category of refrigerant is currently available which is hydrochlorofluorocarbons (HCFCs). Although they contain chlorine, which is damaging to the ozone layer, they also contain this which makes them chemically less stable once they enter the atmosphere. Hydrogen