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EPA 608 (TYPE II) Exam| Questions and 100% correct Answers| Latest Update 2026/2027 When a new system has been assembled, the first thing to do is? 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? 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 b...

EPA 608 Type 3 Exam answered 100% correctly 2026 On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ...A hydrostatic tube test kit is used to: determine if a tube leaks Commercial and industrial process refrigeration systems must be ...

EPA 608 Practice exam Type 3| Answered 100% correctly| Latest 2026/2027 The maximum test pressure for leak testing a low-pressure centrifugal chiller is 10 psig Excessive operation of a purge system means 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 refrigerant, a substantial (or threshold) week rate will be reduced to ________ after January 1, 2019.20% For a comfort cooling system with a c...

HVAC: EPA 608 Certification Study Guide| Questions and 100% correct answers| Latest Update 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 What type of lubricant is used with HCFCs? Alkylbenzene lubricantWhat is difference b/w ternary blend a azeotropic...

EPA 608 Type 1 Exam questions and 100% correct answers Recovery equipment used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after November 15, 1993 Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of:recovering 80% of the refrigerant whether or not the compressor is operating or achieving a 4 inch vacuum under conditions of ARI 740-1993 EPA...

Epa 608 universal SkillCat Exam questios and 100% correct answers| Complee| Latest Update As technicians we must stay up to date on Federal state and local law For universal certification you will receive how many questions 100 What is passing grade for all epa certifications 70% True or false you must memorize all regulations because they will stay the same forever False Can chlorine from the environment come from natural resources such as volcanoes Yes but they are not the primary s...

SkillCat EPA 608 Exam| questions and 100% correct answers| Latest update As technicians we must stay up to date on Federal state and local law For universal certification you will receive how many questions 100 What is passing grade for all epa certifications 70% True or false you must memorize all regulations because they will stay the same forever False Can chlorine from the environment come from natural resources such as volcanoes Yes but they are not the primary source True or fa...

EPA 608 Core Study Guide| Exam questions and 100% correct answers| Latest 2026/2027 A "compound gauge": Can only be used for low pressures - Has different unit scales According to EPA regulations, when system flushing is required following a compressor burnout, the following refrigerant must be used: System flushing with refrigerants is illegal A CFC contains: Chlorine, fluorine, carbon A CFC - 11 cylinder is: Orange An HFC-134a cylinder is: Sky blue or pale blue A chlorine atom...

EPA 608 Core Universal exam questions ad correct answers 2026/2027 Refrigeration technicians who violate the Clean Air Act can: D) all of the above. After 1995, any supplies of CFC refrigerant to service existing units in the USA can only come from: A) recovery and recycling. Refrigerant that is recovered can be returned to: A) the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed" unless it: B) has been chemically a...

EPA 608 Core Universal exam questions ad correct answers 2026/2027 Refrigeration technicians who violate the Clean Air Act can: D) all of the above. After 1995, any supplies of CFC refrigerant to service existing units in the USA can only come from: A) recovery and recycling. Refrigerant that is recovered can be returned to: A) the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed" unless it: B) has been chemically a...