An exempt refrigerant - Study guides, Class notes & Summaries

Low GWP Refrigerant Practice Exam With Verified And Updated Questions And Answers. The minimum concentration of a refrigerant that can propagate a flame through a consistent mixture of the refrigerant and air is known as the: Acute toxicity exposure limit (ATELL). Immediately dangerous to life or health concentration (IDLH). Lower flmmability limit (LFL). Upper explosive limit (UEL). - answerLower flmmability limit (LFL). The first stage of the evacuation process which removes non-conde...

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 ...

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 connec...

EPA 608 Practice exam type 1 solved correctly The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. Restricted to technicians who are EPA certified and refrigerant recovery A small Pliance is defined as a system that is Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is below 15 pounds. System dependent Y...

EPA SECTION 608 TYPE I, TYPE II , TYPE III Acc What is typically used on small appliances as a service aperture or other device for adding or removing refrigerant? a. A straight piece of tubing that is entered using a piercing access tube. b. A line located 15 inches below the compressor. c. A valve installed at the factory which has a ¼ inch diameter and machine threads. d. A service aperture is not present because small appliances are exempt from this requirement. - ANSWER a. A straight ...

Commercial Refrigeration Units 29 and 30 with Complete Questions and AnswersCommercial Refrigeration Units 29 and 30 with Complete Questions and AnswersCommercial Refrigeration Units 29 and 30 with Complete Questions and Answers Which of the following is an indicator of a leaking refrigerant system? - ANSWER - Metal-to-metal contact points. Why will the compressor on a leaking system become overheated? - ANSWER - There is a reduced amount of coolant. How are trigger rates established? - A...

What is typically used on small appliances as a service aperture or other device for adding or removing refrigerant? a. A straight piece of tubing that is entered using a piercing access tube. b. A line located 15 inches below the compressor. c. A valve installed at the factory which has a ¼ inch diameter and machine threads. d. A service aperture is not present because small appliances are exempt from this requirement. - ANSWER a. A straight piece of tubing that is entered using a piercing...

What is being done in the U.S. to stop damage to the stratospheric ozone layer? - Answer Eliminating the use of CFCs and HCFCs refrigerants How much can a technician be fined for venting a non-exempt refrigerant from a system? - Answer $44,539 per day per violation State and local governments __________________. - Answer can make laws that are stricter requirements than the federal regulations The ___________ identifies alternative refrigerants for use program. - Answer Snap Pro...

EPA 608 EXAM 2023/2024 UPDATE!! (QUESTIONS AND VERIFIED ANSWERS) 100% CORRECT ANSWERS 1. Which of the following synthetic lubricants is used with ternary refrigerant blends containing HCFCs? ~ Answer: Alkylbenzene 2. EPA regulations only allow recovered or recycled refrigerant to be ________. ~ Answer: charged into the same or another appliance owned by the same person 3. The ________ program identifies alternative refrigerants for use ~ Answer: SNAP 4. Whi...

You will need to purchase separate jaws for the Looking installation tool according to the tubing size. T or F - True Before opening a HC sealed system after the refrigerant has been removed you must? - Purge is for a minimum 5 minutes with nitrogen. What is different about HC compressor starting components? - The all electrically sealed to prevent any arcing. What is different about servicing Hydrocarbon (HC) refrigeration systems? - Refrigerant is flammable and potentially explosive. T...