EPA 608

EPA 608 Practice Test #1-2024 What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? -Correct Ans-Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine -Correct Ans-Halocarbon Chlorofluorocarbons (CFCs) consist of? -Correct Ans-Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? -Correct Ans-Hydrogen CFCs ...

EPA 608 Certification Exam- Qwik Study 2024 Ozone stratosphere above the earth consists of molecules containing... -Correct Ans-3 oxygen atoms (O3) The oxygen we breathe contains how many atoms in each molecule? -Correct Ans-two atoms (O2) The ozone layer consists of ozone in the stratosphere at an altitude of between __________above the earth -Correct Ans-7 and 28 miles the ozone layer is formed by what? -Correct Ans-Ultra violet light from the sun acting on oxygen molecules,absorbs a...

epa 608 universal with qualified solutions Refrigeration technicians who violate the Clean Air Act can: - -Correct Ans-Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - -Correct Ans-recovery and recycling. Refrigerant that is recovered can be returned to: - -Correct Ans-the same system or other systems owned by the same person without restriction. Refrig...

EPA Certification Exam Perfectly Solved 2024 Which Refrigerants contain the most chlorine? -Correct Ans-CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? -Correct Ans-July 1, 1992 Which Refrigerants have the lowest zone depletion potential? -Correct Ans-HFC's The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the stratosphere is: -Correct Ans-Chlorine Stratospheric ozone consists ...

EPA 608 study material including (Core, type 1, 2 and 3) 2024 a vacum pump should be connected -Correct Ans-as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will -Correct Ans-dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three -Correct Ans-oxygen atoms one chlorine atom can destroy -Correct Ans-100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compoun...

HVAC: EPA 608 Certification Study Guide 2024 Are there drop-in replacements for R-12 systems? Why or why not? -Correct Ans-No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? -Correct Ans-Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? -Correct Ans-Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend...

PA 608 Certification Type 1 Questions. Well Answered Technicians that handle refrigerant during service, maintenance, or repair of small appliances must have: Universal certification Type I Type I or Universal certification -Correct Ans-Type I or Universal certification MVAC or motorized vehicle air conditioning systems fall under the small appliance regulations True False -Correct Ans-False Temperature/pressure chart is used for which of the following: Identify the refrige...

EPA 608 (CORE) Exam 2024-100% Solved When moisture exists in an operating system, what is most likely to occur? -Correct Ans-Acid will form. What factor(s) affects the speed of evacuation? -Correct Ans-1) The size of the equipment being evacuated. 2)The ambient temperature. 3) The amount of moisture in the system A system is considered dehydrated when? -Correct Ans-The vacuum indicator shows you have reached & held the required finished vacuum. The over-evacuation of a system: -...

EPA 608 Core Test Sample Questions Well Answered As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 -Correct Ans-a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that exten...

EPA 608 Certification Core Questions.2024 1995 1987 2000 -Correct Ans-1994 Recovered refrigerant is stored in which of the following painted tank: Gray with yellow top Yellow with gray top Yellow with blue top Blue with yellow top -Correct Ans-Gray with yellow top If your recovery unit does not have a sub-cooling feature recovery rate will be _____ : Recovery rate is independent Slower Faster -Correct Ans-Slower TXV valve maintaining the pressure difference between _____ and...