BUNDLED[EPA 608 Certification Core Practice Test Exam with 100% correct Answers 2023

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

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

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 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.

Type I - Small appliances- 5lbs or less Type II - Residental Units/ Light Commercial Type III - Industrial Universal - All types

Technicians that handle refrigerant during service, maintenance, or repair of small appliances must have: Universal certification Type I Type I or Universal certification - Type I or Universal certification MVAC or motorized vehicle air conditioning systems fall under the small appliance reg...

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

what must be done if you cannot adequately fix a leak? - you must mothball, retrofit or, replace the equipment After repairing a leak in a system with 500 lbs or more of refrigerant when must leak inspections take place? - once every 3 months When must leak inspections take place for equipment...

If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be; A retrofitted or retired within 3 months. B retrofitted or retired within 12 months. C replaced within 3 months. D replaced within 12 months. - B