EPA 608 Certification Exam Package Deal

a vacum pump should be connected - Answer as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will - Answer dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three - Answer oxygen atoms one chlorine ato...

Are there drop-in replacements for R-12 systems? Why or why not? - 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? - Answer Ester based oils and they do not mix with other...

What does Section 608 of the Federal Clean Air Act state? - Answer Requires anyone who handles refrigerants to be certified in proper refrigerant handling techniques. What is the ozone layer composed if? - Answer 3 oxygen atoms bonded together Where is the ozone layer? - Answer 10-30 miles abo...

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

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 - Answer 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 th...

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

Ozone - Answer Three oxygen atoms bonded together Ozone Layer - Answer A layer in the stratosphere 10-30 miles from sea level that protects the Earth from ultraviolet radiation Stratosphere - Answer A section of our atmosphere which contains the ozone layer Oxygen - Answer Two oxygen atoms ...

Refrigeration technicians who violate the Clean Air Act can: - - Answer Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - - Answer recovery and recycling. Refri...

Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? - 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? - Answer $44,539 HCFCs contain - Answer Hydrogen, C...

Industrial process and refrigeration units with a 50 pound charge or more with an annualized leak rate of _____ or more must have leaks repaired. - Answer 35 Unless plans are made to replace a system exceeding the maximum leak, repairs must be made in; - Answer 30 days Refrigerants CFC R-12, H...

Before charging a new system with refrigerant, what should be done? - Answer 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? - Answer R-22 What tools can you use to find general area ...

The maximum test pressure for leak testing a low-pressure centrifugal chiller is - Answer 10 psig Excessive operation of a purge system means - Answer The system has a leak on the sub-ambient pressure side of the system For a commercial refrigeration system with a charge of 50 pounds or more r...

When a new system has been assembled, the first thing to do is? - 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? - Answer Pressurized with nitrogen then leak checked. The EPA regulations require...