What is hcfcs - Study guides, Class notes & Summaries

Which of the following is not a violation of refrigerant management regulations under the clean air act? : Servicing a system that uses CFCs or HCFCs after the phase of those refrigerant Which of the following refrigerants has the lowest global warming potential? : R-600a How does the global warming potential of R410A compare to carbon dioxide? : It is thousands of times greater How does the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to the G...

HVAC: EPA 608 Certification Study Guide Questions and Answers 100% Solved 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 lubricant What is difference b/w ternary blend a azeotropi...

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 lubricant What is difference b/w ternary blend a azeotropic blend? - Ternary blends are three-part mixtures whereas azeotropic blends are blends of...

federal, state, and local laws. As technicians, we must follow and be up to date on all: 25 Core questions 25 Type I questions 25 Type II questions, and 25 Type III questions. This makes for 100 questions total. For Universal Certification, you will receive how many questions? 50 questions - 25 Core questions and 25 Type III questions If you need to get Type III certification, which of the following will be on your exam? 70% What is a passing grade for all EPA certif...

Are there drop-in replacements for R-12 systems? Why or why not? - ANSWER 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? - ANSWER Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - ANSWER Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? - ANSWER Ternary blends are three-part mixtu...

Are there drop-in replacements for R-12 systems? Why or why not? - correct answer 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? - correct answer Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - correct answer Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? - correct answer Ternary blends ...

Dont disolve iin water What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? 100,000 ozone molecules Each chlorine atom in the stratosphere can destroy how many ozone molecules? Theyre all CFC's Which refrigerant contains a CFC? R500, R12, R113 or R11? Hydrogen, chlorine, flourine and carbon HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? HFC R 134A Which refrigerant is a chlorine fre...

True or false: CFCs neither dissolve in water nor break down into compounds that dissolve in water, so they do not rain out of the atmosphere. : True How many ozone molecules will one chlorine atom destroy? : 100,000 What does ODP stand for? : ozone depletion potential What is ODP? : the measurement of CFC's and HCFC's ability to destroy ozone Which refrigerant is the most harmful to the ozone layer? : R-12 CFC 2 | P a g e The Clean Air Act prohibits venting of CFCs and HCFCs as ...

HVAC: EPA 608 CERTIFICATION EXAM 2024 WITH 100% CORRECT ANSWERS Are there drop-in replacements for R-12 systems? Why or why not? - correct answer 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? - correct answer Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - correct answer Alkylbenzene lubricant What is difference b...

Where is the stratosphere? - 10 to 30 miles Where is ozone located? - stratosphere What does an ozone molecule consist of? - 3 oxygen atoms The ozone layer protects us from... - ultraviolet radiation The ozone layer helps to maintain... - stable earth temperatures Depletion of ozone causes... - crop loss, eye disease, skin cancer, reduced marine life, deforestation, increased ground level ozone. What type of refrigerants, when released into the atmosphere, cause ozone depletion...