Hfos - Study guides, Class notes & Summaries

EPA SECTION 608 CORE (2019 revision) COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED) What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms. b. Molecules containing 3 oxygen atoms. c. Molecules containing 4 oxygen atoms. d. Molecules containing 5 oxygen atoms - ANS b. Molecules containing 3 oxygen atoms. Which of the following refrigerants has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a - ANS d. R...

technicians maintaining, servicing, repairing, or disposing of low-pressure appliances must be certified as: - ANSWER Type III or Universal Technician the owner &/or operator of the equipment is responsible for keeping: - ANSWER records including: leak inspections & any completed leak repair verification tests it's the _______ &/or ___________ responsibility to obtain service records from the servicing company doing any work on an appliancem - ANSWER owner &/ or operator as of 11/14/94...

EPA 608 CORE EXAM TESTS COMBINED | VERIFIED TEST QUESTIONS WITH CORRECT SOLUTIONS Where is the stratosphere? - ANSWER 10 to 30 miles Where is ozone located? - ANSWER stratosphere What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms b. Molecules containing 3 oxygen atoms c. Molecules containing 4 oxygen atoms d. Molecules containing 5 oxygen atoms - ANSWER b. Molecules containing 3 oxygen atoms Which of the following refrigerants ha...

EPA CORE EXAM When servicing an R-22 system you CANNOT - ANSWER top off the unit with R-407C Reclaimed refrigerant must be tested to meet __________________ before it can be resold. - ANSWER AHRI 700 EPA may require technicians to demonstrate their ability to perform proper procedures for recovering and/or recycling refrigerant. Failure to demonstrate or failure to properly use the equipment may result in: - ANSWER Revocation of the technician's certification You have to leak check a ...

what is CFCs? Chlorofluorocarbons (Chlorine, Fluorine, and carbon) What is HCFCs? Hydrochlorofluorocarbons (hydrogen, chlorine, fluorine, and carbon) Must See! Eyewitness Captures the Moment a Pair of Male Sea Lions Attack Beach-Goers POSTED 9 HOURS AGO 0:00 / 0:00 What is ASHRAEs? The American Society of Heating Refrigerating and Airconditioning Engineers. A global professional association seeking to advance heating, ventilation, airconditioning and refrigeration systems...

What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms. b. Molecules containing 3 oxygen atoms. c. Molecules containing 4 oxygen atoms. d. Molecules containing 5 oxygen atoms correct answer: b. Molecules containing 3 oxygen atoms. Which of the following refrigerants has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a correct answer: d. R-600a Which of the following gases is used as the baseline measur...

Type I certification allows the certified person to work on the following type of systems Small appliances 5 pound or less excluding split systems When retrofitting or converting a system to use a different refrigerant, only EPA-approved substitutes can be used. Many refrigerants are said to be a "direct drop in replacement refrigerant" What does the EPA state about drop in refrigerants? There is no such thing as a drop in refrigerant. Recovery equipment used during service, ma...

EPA 608 - core Study Guide Rated A+ Which of the following refrigerant has a GWP of "1"? A) R-22 B) R-1233zd C) R-410A D) R-134a The molecule found in CFCs and HCFCs that depletes O-Zone is: A) Fluorine B) Chlorine C) Hydrogen D) Carbon Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for; A) disposable cylinders B) recovery cylinders C) one pound cans D) accumulator cylinders The condenser ____...

EPA SECTION 608 CORE EXAM What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms. b. Molecules containing 3 oxygen atoms. c. Molecules containing 4 oxygen atoms. d. Molecules containing 5 oxygen atoms - b. Molecules containing 3 oxygen atoms. Which of the following refrigerants has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a - d. R-600a Which of the following gases is used as the baseline measureme...

cfc universal Questions and Answers 2023 which of following refrigerants has lowest global warming potential ? A. R-134 A B. R407 D C. R410 A D. R600A D. R600A which of the following gases is used as the baseline measurement for global warming potential ? A. Ammonia B. Carbon Dioxide C. CFC- 12 D. Propane B. Carbon Dioxide Which type of refrigerant typically has the lowest global potential? A. HCFCs B. HFOs C. HFCs D. All are equal B. HFOs Why are HFO refrige...