Epa 608 type 3 exam 2025 - Study guides, Class notes & Summaries

HVAC: EPA 608 Certification Study Guide with Complete Solutions Are there drop-in replacements for R-12 systems? Why or why not? - Answer️️ -No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? - Answer️️ -Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - Answer️️ -Alkylbenzene lubricant What is difference b/w ternar...

EPA 608 Type 3 Study Guide with Complete Solutions On low pressure chillers, moisture typically enters the refrigerant system through - Answer️️ -air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: - Answer️️ - 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - Answer️️ -... A hydrostatic tube test kit is used to: - Answer️️ -determine if a tube leaks...

EPA 608 Type 3 Exam Questions Fully Solved Latest Update 2025 Already Passed Type 3 - Answers Technicians maintaining, servicing, repairing or disposing of low-pressure appliances must be certified as a universal technician or a _______ ___. enter - Answers Because a low-pressure system operates below atmospheric pressure (in a vacuum), leaks in the gaskets or fittings will cause air and moisture to ______ the system. heater - Answers The most efficient method of leak checking a charged, low...

EPA 608 Certification Exam Practice Questions and Answers What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - ANSWER-November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - ANSWER-Recover all refrigerants. The objective of the Clean Air Act is to protect what? - ANSWER-The earth's stratosphere. HFC's - ANSWER-HydroFlouroCarbon's CFC's - ANSWER-ChloroFluoroCarbon's ODP - ANSWER-Ozo...

EPA 608 (TYPE II) EXAM 2025 / ACTUAL 70 QUESTIONS WITH DETAILED, VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A+ When a new system has been assembled, the first thing to do is? Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & indust...

EPA 609 FINAL EXAM 2024 ACTUAL EXAM COMPLETE 200 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - ANSWER -FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 - ANSWER -CFC-11 3. Ozone layer absorbs and scatters __________ form the sun - ANSWER -Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant - ANSWER -TRUE 5. a refillab...

EPA SECTION 608 CORE (2022 revision) 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 Which of the following refrigerants has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a Which of the following gases is used as the baseline measurement for global warming potential? a. Ammo...