BUNDLE FOR EPA 608 TEST/ Q&A / SURE A

What should a service technician do if they lose their EPA certification card? - Request a new card from the certifying organization What type of synthetic oils are commonly used in new HFC systems and for retrofitting HCFC equipment to HFC refrigerants? - Polyolester Which of the following is N...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosph...

ashrae standard 15-1994 requires that all machinery rooms must be active an alarm and mechanical ventilation before refrigerant concentrations exceed the? - TIV-TWA Threshold limit valve, Time weighted Average Long hoses between the unit and the recovery machine should? - not be used because they...

Before charging a new system with refrigerant, what should be done? - Pressurize with nitrogen (classified as an inert gas) and leak Which refrigerant can be used for leak detection as a trace gas and pressurized with nitrogen? - R-22 What tools can you use to find general area of leaks and pinp...

Where do leaks commonly occur in low pressure systems? a. Evaporator b. Condenser c. Purge unit d. Gaskets or fittings - d. Gaskets or fittings Where do leaks commonly occur in open-drive type compressor systems? a. Evaporator b. Condenser c. Shaft seal d. Cooling tower - c. Shaft seal Doe...

Which Refrigerants contain the most chlorine? - CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? - July 1, 1992 Which Refrigerants have the lowest zone depletion potential? - HFC's The molecule found in CFC's and HCHC's...

What are the typical uses of the center port of gauge set? - Used during evacuation, charging and recovery procedures. What color are the gauges on a manifold gauge set? - Low pressure is blue, High pressure is red. What are the typical ranges of pressure measurements used on the gauges of a mani...