- Study guides, Class notes & Summaries

CFC/HCFC/HFC Questions and Answers 2023 HFC HFC Refrigerant - HFC refers to the chemical composition of the refrigerant. HydroFluoroCarbon indicates that the refrigerant is comprised of Hydrogen, Fluorine, and Carbon. Common HFC refrigerants are R134a CFC CFC Refrigerant - CFC refers to the chemical composition of the refrigerant. ChloroFluoroCarbon indicates that the refrigerant is comprised of Chlorine, Fluorine, and Carbon. Common CFC refrigerants are R11, 12,13,113,114, and 115 ...

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1 pages

Written in 2022/2023

Grade A+

julianah420

cfc universal Questions and Answers 2023 which of following refrigerants has lowest global warming potential ? A. R-134 A B. R407 D C. R410 A D. R600A D. R600A which of the following gases is used as the baseline measurement for global warming potential ? A. Ammonia B. Carbon Dioxide C. CFC- 12 D. Propane B. Carbon Dioxide Which type of refrigerant typically has the lowest global potential? A. HCFCs B. HFOs C. HFCs D. All are equal B. HFOs Why are HFO refrige...

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4 pages

Written in 2022/2023

Grade A+

julianah420

CFC's and the ozone layer Questions and Answers 2023 CFCs are organic molecules that contain 3 elements: carbon, chlorine and fluorine CFCs are both non toxic or flammable and start off unreactive In water CFCs are insoluble CFCs have a low boiling point CFCs were used in refrigerators, air conditioning systems, propellants and aerosol spray cans In 1974 discovered the truth behind CFCs which was that the chlorine inside CFCs helped destroy ozone ...

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2 pages

Written in 2022/2023

Grade A+

julianah420

5) air pollution 2 - ozone and CFC'S Questions and Answers 2023 What is an allotrope? Different forms of pure elements An allotrope is a form of an element that is chemically distinct from other forms of the same element. Graphite and diamond are two allotropes of carbon. What is the structure of ozone? O3 Where is the 'ozone layer'? stratosphere Is ozone in the troposphere good or bad? What about in the stratosphere? troposphere = bad stratosphere = good W...

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3 pages

Written in 2022/2023

Grade A+

julianah420

EPA 608 CORE QUESTIONS AND ANSWERS 2023 What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? Hydrogen, chlorine, flourine and carbon Which ...

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23 pages

Written in 2022/2023

Grade A+

julianah420

C6e: Depletion of the ozone layer Questions and Answers 2023 Explain why the use of CFCs has been banned in the UK • society has agreed with scientists' views that CFCs deplete the ozone layer. Describe and explain how scientists' attitude to CFCs has changed: • initial enthusiasm for the use of CFCs based upon their inertness • later discovery of ozone depletion and link to presence of CFCs • acceptance by scientists and the rest of the world community that the use o...

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2 pages

Written in 2022/2023

Grade A+

julianah420

Chlorofluorocarbons (CFCs) Questions and Answers 2023 What makes up Chlorofluorocarbons? Chlorine, Carbon and Fluorine What is it used for? Used as a refrigerant, propellants in aerosol cans and asthma inhlaers What Industries would you find CFCs in? Anywhere with heating or air conditioning, commercially and the medical field When was it first produced? First synthesized in 1928 by GM What protocols were initiated to control this substance? The Kyoto Protocol a...

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1 pages

Written in 2022/2023

Grade A+

julianah420

ODP test Questions and Answers 2023 Chlorofluorocarbon (CFC) refrigerants consist of: Chlorine, Fluorine, Carbon What causes a CFC molecule to break down once it reaches the upper atmosphere? Ultraviolet light The Ozone layer: Reduces ultraviolet radiation. Hydrochlorofluorocarbon (HCFC) refrigerants consists of: Hydrogen, Chlorine, Fluorine, Carbon. Which of the following refrigerants causes the least amount of damage to the ozone layer? R-134a Are there...

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4 pages

Written in 2022/2023

Grade A+

julianah420

UNIT 9 APES QUESTIONS AND ANSWERS 2023 What is the difference between Stratospheric Ozone and Tropospheric Ozone? Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the troposphere, closer to Earth's surface, is a pollutant and hazardous to our health. What are the three types of radiation the sun produces? UV-A, UV-B, and UV-C. Which type of UV ray is most dangerous to life? UV-C(short wavelength) Which type of UV ray does...

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11 pages

Written in 2022/2023

Grade A+

julianah420

Cfc Exam 1 Questions And Answers 100% Correctcfc Exam 1 Questions And Answers 100% Correct

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19 pages

Written in 2022/2023

Grade A+

NursingTutor1

CFC Test 2023 Questions and Answers (Graded A)CFC Test 2023 Questions and Answers (Graded A)CFC Test 2023 Questions and Answers (Graded A) asphyxiate you - ANSWER-While R22 is considerd to be non toxic it can oxygen - ANSWER-never use_____ to purge lines or to pressure a unit when refrigerant is in the line - ANSWER-when should u never cut or weld a refrigerant line check data plate - ANSWER-how do you determine the safe pressure for leak testing A1 - ANSWER-what is the most safe ...

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2 pages

Written in 2022/2023

Grade A+

NursingTutor1

OZONE Layer Protection; CFC Exam Questions and Answers OZONE Layer Protection; CFC Exam Questions and Answers OZONE Layer Protection; CFC Exam Questions and Answers ozone construction exists as 3 basic forms - ANSWER-o - oxygen atom o2 - oxygen molecule o3 - ozone molecule - toxic, unstable gas, protects us from UV sunlight sunlight strikes o2 molecules and splits them, the floating o atoms will "float" and come into contact with o2 to form - ANSWER-o3- ozone molecule the stratosph...

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9 pages

Written in 2022/2023

Grade A+

NursingTutor1

CFC Certification Questions and AnswersCFC Certification Questions and AnswersCFC Certification Questions and AnswersCFC Certification Questions and Answers CFC (R-11, R-12, R-502) - ANSWER-Chlorine Fluorine Carbon HCFC (R-22, R-123) - ANSWER-Hydrogen Chlorine Fluorine Carbon HFC (R-134a) - ANSWER-Hydrogen Fluorine Carbon 3 R's - ANSWER-recover, recycle, reclaim Recover - ANSWER-is to remove refrigerant in any condition from a system and store it in an external container Recyc...

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2 pages

Written in 2022/2023

Grade A+

NursingTutor1

Cfc Exam Questions And Answers (Verified Answers)Cfc Exam Questions And Answers (Verified Answers)

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1 pages

Written in 2022/2023

Grade A+

NursingTutor1

CFC Core Exam Questions and Answers 100% CorrectCFC Core Exam Questions and Answers 100% CorrectCFC Core Exam Questions and Answers 100% Correct __are fluorocarbon refrigerants that cause no harm to stratospheric ozone. A.CFCS B.HCFCS C.HFCs D.HalonsTM - ANSWER-C 2.The Clean Air Act_. A.calls for the phaseout of PFC refrigerant production B.requires that all leaks be fixed within 30 days C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal D...

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20 pages

Written in 2022/2023

Grade A+

NursingTutor1

__are fluorocarbon refrigerants that cause no harm to stratospheric ozone. A.CFCS B.HCFCS C.HFCs D.HalonsTM - ANSWER C 2.The Clean Air Act_. A.calls for the phaseout of PFC refrigerant production B.requires that all leaks be fixed within 30 days C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal D.prohibits CFC/HCFC venting as of July 1,1992 - ANSWER D 3.Refrigerant__is the type of contamination that is the most difficult for a reclaiming ...

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20 pages

Written in 2022/2023

Grade A+

papersbyjol

Manufacturers often color code the exterior of gauges, on a typical gauge manifold set the low pressure gauge is color coded - ANSWER blue Approved refrigerant recovery cylinders can be identified by which colors - ANSWER gray body and yellow top Chlorofluorocarbon (CFC) refrigerants are so named because they contain the elements - ANSWER chlorine, fluorine, carbon What is being done in the U.S. to stop damage to the stratosphere - ANSWER enforcing strict emission requirements on incine...

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2 pages

Written in 2022/2023

Grade A+

shantelleG

__are fluorocarbon refrigerants that cause no harm to stratospheric ozone. A.CFCS B.HCFCS C.HFCs D.HalonsTM - ANSWER C 2.The Clean Air Act_. A.calls for the phaseout of PFC refrigerant production B.requires that all leaks be fixed within 30 days C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal D.prohibits CFC/HCFC venting as of July 1,1992 - ANSWER D 3.Refrigerant__is the type of contamination that is the most difficult for a reclaiming ...

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20 pages

Written in 2022/2023

Grade A+

shantelleG

lifetime of cfcs is believed to be in the range of ______ - Answer- 20 to 100 years After recovering refrigerant from a sealed system, which of the following gas is used to pressurize or blow debris out of the system: - Answer- Nitrogen gas A recovery cylinder can maximum store____ number of refrigerants - Answer- One Which of following substance present in refrigerant appliance results in corrosion ? - Answer- Acidic A Vacuum test could actually hide a leak: - Answer- True Refrig...

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4 pages

Written in 2022/2023

Grade A+

millyphilip

ozone construction exists as 3 basic forms - Answer- o - oxygen atom o2 - oxygen molecule o3 - ozone molecule - toxic, unstable gas, protects us from UV sunlight sunlight strikes o2 molecules and splits them, the floating o atoms will "float" and come into contact with o2 to form - Answer- o3- ozone molecule the stratosphere is approx. how far away above earths surface - Answer- 15 to 50 km normally there is a balance between the ___________ and ___________ of o3 - Answer- destructi...

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9 pages

Written in 2022/2023

Grade A+

millyphilip