Study guides, Class notes & Summaries

EPA 608 Core Test Sample Questions |UPDATED| 2024/2025 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 *Ans* 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 atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends...

EPA 608 Type III Sample Test Questions Exam Elaboration |Question and Answers| 100% Correct Where do leaks commonly occur in low pressure systems? a. Evaporator b. Condenser c. Purge unit d. Gaskets or fittings *Ans* 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 *Ans* c. Shaft seal Does refrigerant go out of the system in low pressure systems or does air and moisture go in? a. ...

EPA 608 Practice Exam Type 1 [Question and Answer] VERIFIED The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. *Ans* Restricted to technicians who are EPA certified and refrigerant recovery A small Pliance is defined as a system that is *Ans* Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is b...

EPA 608 Core Universal Exam Elaboration |100% Correct Answers| Refrigeration technicians who violate the Clean Air Act can: *Ans* D) all of the above. After 1995, any supplies of CFC refrigerant to service existing units in the USA can only come from: *Ans* A) recovery and recycling. Refrigerant that is recovered can be returned to: *Ans* A) the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed" unless it: *Ans* B) has...

#Latest EPA 608 Type 3 Practice Exam |Graded A+| 100% Correct On low pressure chillers, moisture typically enters the refrigerant system through *Ans* air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: *Ans* 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller *Ans* ... A hydrostatic tube test kit is used to: *Ans* determine if a tube leaks Commercial and industrial p...

EPA 608 study material including (Core, type 1, 2 and 3) Exam Elaboration |100% Correct| a vacum pump should be connected *Ans* as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will *Ans* dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three *Ans* oxygen atoms one chlorine atom can destroy *Ans* 100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compounds ...