Hfo is - Study guides, Class notes & Summaries

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 ...

Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? - correct answer 5 years How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? - correct answer $44,539 HCFCs contain - correct answer Hydrogen, Chlorine, Fluorine, and Carbon Which of the following refrigerants is an HFO? - correct answer R-1234ze An ozone molecule contains; - correct answer Three oxygen atoms ...

Why are flammable HFO refrigerants classified as A2L and not A2? - They have low flammability, being less flammable than HC refrigerants. Which of the following statements is true? - Propane cylinders for grilling contains impurities that refrigerant-grade propane does not have. Over-evacuation of a system can ________ - never occur; you can never pull too much air or other impurities from a system A system containing a flammable refrigerant must have the process tubes or service conn...

What does ozone in the stratosphere above the earth consist of? - Answer-Molecules containing 3 oxygen atoms Which of the following refrigerants has the lowest global warming potential? - Answer-R-600a Which of the following gases is used as the baseline measurement for global warming potential? - Answer-Carbon Dioxide Which type of refrigerant typically has the lowest global warming potential? - Answer-HFO's What is the state of the refrigerant entering the compressor of a refriger...

If the mechanic's gauges rise from a vacuum to pressure, what is required? - answer-Additional recovery What is the only way to fully clear moisture from the A/C system? - answer-Replacing the desiccant Pressure ______ the boiling point - answer-Raises Vacuum _______ the boiling point - answer-Lowers What should you do when replacing hoses? - answer-Make sure you have the correct type/size of tubing What does GWP stand for? - answer-Global Warm...

Which of the following is not a violation of refrigerant management regulations under the clean air act? : Servicing a system that uses CFCs or HCFCs after the phase of those refrigerant Which of the following refrigerants has the lowest global warming potential? : R-600a How does the global warming potential of R410A compare to carbon dioxide? : It is thousands of times greater How does the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to the G...

EPA: CORE 185 QUESTION PRACTICE Guide 2023/2024.Which ASHRAE classification means slightly flammable? a.) A1 b.) A2L c.) A3 d.) B1 - ANSWER b.) A2L What is the Significant New Alternatives Policy (SNAP) Program? a.) EPA's program that identifies refrigerants with lower overall risks to human health and the environment. b.) Covers only CFC and HCFC refrigerants used in residential air conditioning. c.) Relates to CFC and HCFC refrigerants used in commercial air conditioning. ...

Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? - 5 years How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? - $44,539 HCFCs contain - Hydrogen, Chlorine, Fluorine, and Carbon Which of the following refrigerants is an HFO? - R-1234ze An ozone molecule contains; - Three oxygen atoms Purity specification of new, recycled, or reclaimed R-134a must meet this standard:...

EPA 608 9th edition Questions with 100% Correct Answers | Verified | Latest Update 2024 | Rated A+ Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? 5 years How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? $44,539 HCFCs contain Hydrogen, Chlorine, Fluorine, and Carbon Which of the following refrigerants is an HFO? R-1234ze An ozone molecule contains; Three oxygen...

*Orthotics* - ANSWER-- Know the general categories to describe orthotics and the purpose of each type - Recommend orthotics for painful joints, tissue protection and immobilize for healing - Understand principle of splinting fewest joints possible - Describe appropriate angle of pull (90 degree) and rationale - Understand principles related to materials, fit, and safety What is the purpose for splinting? - ANSWER-1. Support a painful joint 2. Immobilize 3. Protect healing or damaged tis...