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all of the above Correct Answer - Refrigeration technicians who violate the clean air act can: A. lose their epa certification B. be fined. C. be required to appear in federal court D. all of the above november 1995 Correct Answer - It has been illegal to vent substitutes for CFC and HCFC refrigerants since: R22 Correct Answer - which refrigerant has the lowest odp? R22, R11, R12, R113 recover Correct Answer - to remove refrigerant in any condition from a system and store it in an...

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 ...

When a new system has been assembled, the first thing to do is? Correct Answer - 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? Correct Answer - Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exceeds _________ of t...

What are the typical uses of the center port of gauge set? Correct Answer - Used during evacuation, charging and recovery procedures. What color are the gauges on a manifold gauge set? Correct Answer - Low pressure is blue, High pressure is red. What are the typical ranges of pressure measurements used on the gauges of a manifold gauge set? Correct Answer - High side is 0 to 500 PSIG; Low side is 0 to 350 PSIG and 0 to 30 in. Hg below atmospheric pressure. Is the refrigerant leaving a c...

On low pressure chillers, moisture typically enters the refrigerant system through Correct Answer - air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: Correct Answer - 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller Correct Answer - ... A hydrostatic tube test kit is used to: Correct Answer - determine if a tube leaks Commercial and industrial process refrigera...

the state of the refrigerant entering the metering device is? Correct Answer - A subcooled high pressure liquid. what type of refrigerant is used in VERY high-pressure appliances? Correct Answer - R-503 what type of refrigerant is used in MEDIUM pressure appliances? Correct Answer - R-500 what type of refrigerant is used in HIGH pressure appliances? Correct Answer - R-410A and R-22 what device is located at the END of the liquid line? Correct Answer - The expansion device. what ty...

Which Refrigerants contain the most chlorine? Correct Answer - CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? Correct Answer - July 1, 1992 Which Refrigerants have the lowest zone depletion potential? Correct Answer - HFC's The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the stratosphere is: Correct Answer - Chlorine Stratospheric ozone consists of: Correct Answer - Three oxy...

Are there drop-in replacements for R-12 systems? Why or why not? Correct Answer - 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? Correct Answer - Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? Correct Answer - Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? Correct Answer - Ternary blends ...

a vacum pump should be connected Correct Answer - as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will Correct Answer - dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three Correct Answer - oxygen atoms one chlorine atom can destroy Correct Answer - 100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in water Correct Answer - CFC...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Correct Answer - November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? Correct Answer - Recover all refrigerants. The objective of the Clean Air Act is to protect what? Correct Answer - The earth's stratosphere. HFC's Correct Answer - HydroFlouroCarbon's CFC's Correct Answer - ChloroFluoroCarbon's ODP Correct Answer - Ozone Depletion Poten...