Hfo is - Study guides, Class notes & Summaries

MACS 609 CERTIFICATION EXAM QUESTIONS & ANSWERS CORRECT 100% The use of ultraviolet (UV) or fluorescent dyes in an HFO-1234yf system is: - answers Approved by some vehicle manufactures but not by others One effect of some refrigerant gases in the atmosphere is that they: - answers Contribute to trapping heat Which item is not mentioned in the SAE J2099 Standard of refrigerant purity? - answers Sludge When it has been determined that an A/C system has a low refrigerant charge, what s...

answers 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 Warming Potential ...

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...

What is the correct initial DIRECT MAP setting for high frequency Oscillator correct answer: 8-10cmH2O What is the correct initial FROM CV MAP setting for high frequency Oscillator correct answer: 1-2cmH2O What is the initial Delta P/Amplitude setting for HFO correct answer: Unit chest wiggle is present 1 Herts = how many breaths correct answer: 60 What are the HFO controls for managing oxygenation correct answer: MAP FiO2 What is the correct HFO inspiratory time setting? co...

What should you do when replacing hoses? Make sure you have the correct type/size of tubing What does GWP stand for? Global Warming Potential CO2 is equal to what A/C system? R-744 HFO-1234yf systems are acceptable in what kinds of vehicles? Passenger cars, light-duty trucks, medium-duty passenger vehicles, heavy-duty pickup trucks, and complete heavy-duty vans HFO-1234yf systems are not acceptable in what kinds of vehicles? Heavy-duty trucks, refrigerated transport, and of...

EPA 608 Exam Practice Questions 1-100EPA 608 Exam Practice Questions 1-100 Ozone depletion is caused by _______ in HFC refrigerants. - Answer chlorine CFCs and HCFCs ________ making them capable capable of reaching the stratospheric ozone layer. - Answer do not dissolve in water or easily break down in the atmosphere According to the Rolanda-Molina theory, ________ are destroyed by each chlorine atom in the stratosphere. - Answer 100,000 ozone molecules The stratospheric ozone layer prote...

Ozone depletion is caused by _______ in HFC refrigerants. - Answer-chlorine CFCs and HCFCs ________ making them capable capable of reaching the stratospheric ozone layer. - Answer-do not dissolve in water or easily break down in the atmosphere According to the Rolanda-Molina theory, ________ are destroyed by each chlorine atom in the stratosphere. - Answer-100,000 ozone molecules The stratospheric ozone layer protects us from _______. - Answer-ultraviolet radiation from the sun Which...

EPA 608 CERTIFICATION LATEST ACTUAL EXAM 2024 VERSION 2 WITH 200 QUESTIONS AND CORRECT ANSWERS (100% CORRECT VERIFIED ANSWERS) Recovery equipment is certified by _________. - ANSWER-an EPA-approved laboratory The EPA defines this as maintenance, service, or repair that involves removal of the appliances compressor, condenser, evaporator, or auxiliary heat exchanger coil - ANSWER-Major maintenance When recovering refrigerant from small appliances, you must recover _________. - ANSWE...

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

2024 NSG 526 Exam 2 Study Guide Questions and Answers 100% Verified *Orthotics* - CORRECT 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? - CORRE...