A 1 answer refrigerants - Study guides, Class notes & Summaries

Which refrigerants contain the most chlorine? - ANSWER-CFC. R11,R12,R500. As of what date did it become unlawful to intentionally release Class I and Class II refrigerants to the atmosphere? - ANSWER-July 1 1992. Which refrigerants have the lowest ozone depletion potential (ODP)? - ANSWER-HFC. R134a. The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is: - ANSWER-Chlorine. Stratospheric ozone consists of: - ANSWER-Three oxygen atoms. Stratospheric o...

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 the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin lay...

EPA Certification Exam |Questions and Verified Answers| 100% Correct| Graded A (New 2023/ 2024 Update) QUESTION Which best describes the definition of Type 1 "small appliance" as defined by EPA? Answer: Systems manufactured, charged and hermetically sealed with five (5) pounds or less of refrigerant QUESTION For small appliances use, the recovery equipment manufactured after November 15, 1993, must be capable of recovery: Answer: 80% of the refrigerant when t...

EPA 608 Core Test Sample Questions with Correct Answers 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 - Correct 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 the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer...

EPA Certification Questions With Revised Correct Answers BEST UPDATED!! 1) What is the state of the refrigerant leaving the condenser? - ANSWER High pressure liquid 2) What is the color code of refrigerant gauges? - ANSWER Low side blue, high side red 3) What is considered recycling? - ANSWER To remove, filter and reuse refrigerant in a system 4) Refrigerant cylinders should be.... - ANSWER of rust and dents Free 5) Which leak detector will help loc...

Epa 608 Universal Final Exam (questions and answers) Which refrigerants contain the most chlorine? - CORRECT ANSWER-CFC. R11,R12,R500. As of what date did it become unlawful to intentionally release Class I and Class II refrigerants to the atmosphere? - CORRECT ANSWER-July 1 1992. Which refrigerants have the lowest ozone depletion potential (ODP)? - CORRECT ANSWER-HFC. R134a. The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is: - CORRECT ANS...

What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? - CORRECT ANSWER Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? - CORRECT ANSWER 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? - CORRECT ANSWER Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? - CORRECT ANSWER Hydrogen, chlorine, ...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - CORRECT ANSWER November 14, 1994 1989- Montreal Protocol July 1 1992- Violation to vent CFCs or HCFCs Nov 15 1993- Recovery/Recycling equipment must be certified and labeled by EPA AND Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, or 4 in Hg After this date recovery equipment needs to be capable of rem...

1. On low pressure chillers, moisture typically enters the refrigerant system through Answer air leaks from areas with gaskets or fittings 2. The maximum test pressure for leak testing a low pressure centrifugal is Answer 10 psig 3. Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller Answer ... 4. A hydrostatic tube test kit is used to Answer determine if a tube leaks 5. Commercial and industrial process refrigeration systems must b...

What must be located outside a Class T machinery room? Select one: a. Spare flashlights b. Disposable coveralls c. Machinery shut off switch d. Light switches - ANSWER c Degradation of heat transfer fluid of a hot oil system will begin to occur if: Select one: a. The oil filter is not serviced regularly b. The oil temperature is above a specified range, for an extended period of time c. The oil is allowed to churn in the circulating pump d. The oil becomes too viscous - ANSWER b...