Hfcs - Study guides, Class notes & Summaries

1 - Absolute pressure is equal to standard sea-level plus: - Gauge pressure 1 - All of the following are types of scale except: - Silicone Types of scale include: - Silicate - magnesium carbonate - Calcium Carbonate 1 - Complaints in the winter that it is too cold in a building can be offset by: - Raising the humidity and the temperature 1 - Copper tubing is standardized on the basis of use into standard - Wall thickness schedules 1 - Define absolute pressure - The total pressure that i...

Who Must Be Certified? Any person that services Motor Vehicle Air Conditioning (MVAC) must be certified. Servicing of motor vehicle air conditioning includes repairs, leak testing, and "topping off" of air conditioning systems low on refrigerant, as well as any other repair to the vehicle that requires dismantling any part of the air conditioner. NOTE: Service performed on HCFC-22 air conditioner systems typically found on busses, is NOT covered under section 609, but rather section 608 of the C...

EPA SECTION 608 EXAM (4 VERSIONS) WITH 500 ACTUAL EXAM QUESTIONS AND 100% CORRECT ANSWERS / EPA 608 TECHNICIAN CERTIFICATION REAL EXAM ANSWERS (BRAND NEW!!) Epa Section 608 Type 1 What type of certification is required for persons recovering CFC's, HCFCs, or HFCs during maintenance, service, or repair of small appliances. a. Type II technician. b. Type III technician. c. Type I technician. d. Technician who has passed the core exam. - ANSWER-C EPA Section 608 rules require capture...

EPA 608 Core Test Sample Questions and Answers Latest 2023 with complete solution. 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 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 strato...

ASE AC 609 Question and answers 2023Ozone Depletion Potential - correct answers chemical rating that ranges from 0.01-1.0 and that refers to the amount of ozone depletion caused by a substance compared to CFC-11 (eg HCFC-22 depletes .034 of the ozone where CFC-11 would deplete 1.0) class 1 substance - correct answers ozone depleting chemical with an ozone depletion potential greater than .2 (eg CFCs)HCFCs - correct answers Hydrochlorofluorocarbons, eg R-22 (HCFC-22) HFCs - correct...

R-12 is a _______________ type of refrigerant CFC Section 608 HVAC/R Technicians cannot buy refrigerant in quantities less than ________________ 20 LBS According to ____________ service shops must certify to the EPA that they own approved recovery. CAA Skin or eye contact with fluorocarbon refrigerants can result in IRRITATION, FROSTBITE, DEATH T/F Refrigerant are lighter than air: FALSE Which of the following refrigerants has minimum or zero ozone depletion potential: ...

UNH NUTR 400 EXAM 2 Questions And Answers With Verified Quiz Simple carbohydrates include monosaccharides and _________. ANS Disaccharides The most abundant monosaccharides found in food include glucose, ___________, and ___________. ANS Fructose, Galactose What is the primary function of glucose? ANS To provide a source of energy to cells what foods represent the most significant sources of fructose in the typical U.S. diet? ANS Foods and Beverages sweetened with HFCS Disacchar...

EPA SECTION 608 CORE (2019 revision) Questions and Answers Latest Version 100% Solved 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...

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...

ODP Test Questions and Answers with Verified Solutions What role does the ozone layer play in protecting life on Earth? A) It provides fresh air B) It acts as a shield against harmful UV radiation C) It regulates temperature D) It helps with plant growth What is the main purpose of the Montreal Protocol? A) To phase out substances that deplete the ozone layer B) To increase fossil fuel use C) To promote chemical manufacturing D) To enhance air quality Which of the following s...

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...