Hvac refrigeration Study guides, Class notes & Summaries

HVAC: EPA 608 Certification Study Guide Questions and Answers | Latest Version | 2024/2025 | Rated A+ Are there alternative refrigerants that can be directly used in systems originally designed for R- 12? Why or why not? No, because these new refrigerants are not compatible with the lubricants and oils used in R- 12 systems. Explanation: The oils and lubricants in R-12 systems cannot properly interact with newer refrigerants, making direct replacements unfeasible. What type of o...

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS Two basic categories of chillers are the compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation circulation The primary function of an expansion device is to produce a reduction in the pressure on the liquid refrigerant, regulate the flow of refrigerant into the evaporator, lower the boiling point of the refrigerant far enough below the temperature of the load to g...

HVAC Refrigeration Final Practice Exam Questions and Answers 100% Pass Temperature - Correct Answer ️️ -Levels of heat, the speed of molecules are traveling British thermal unit - Correct Answer ️️ -Amount of heat To raise the temperature of 1 lbs of water 1 degree F Heat flow - Correct Answer ️️ -Transfer from hot to cold Conduction of heat - Correct Answer ️️ -Heat transfer from one molecule to another within a substance or both substances are in contact with touching C...

HVAC Refrigeration Final Practice Exam Questions and Answers 100% Pass Temperature - Correct Answer ️️ -Levels of heat, the speed of molecules are traveling British thermal unit - Correct Answer ️️ -Amount of heat To raise the temperature of 1 lbs of water 1 degree F Heat flow - Correct Answer ️️ -Transfer from hot to cold Conduction of heat - Correct Answer ️️ -Heat transfer from one molecule to another within a substance or both substances are in contact with touching C...

HVAC Refrigeration Final Practice Exam Questions and Answers 100% Pass Temperature - Correct Answer ️️ -Levels of heat, the speed of molecules are traveling British thermal unit - Correct Answer ️️ -Amount of heat To raise the temperature of 1 lbs of water 1 degree F Heat flow - Correct Answer ️️ -Transfer from hot to cold Conduction of heat - Correct Answer ️️ -Heat transfer from one molecule to another within a substance or both substances are in contact with touching C...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - Correct answer-November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - Correct answer-Recover all refrigerants. The objective of the Clean Air Act is to protect what? - Correct answer-The earth's stratosphere. HFC's - Correct answer-HydroFlouroCarbon's CFC's - Correct answer-ChloroFluoroCarbon's ODP - Correct answer-Ozone Depletion Potential Which in...

Temperature - Answer-Levels of heat, the speed of molecules are traveling British thermal unit - Answer-Amount of heat To raise the temperature of 1 lbs of water 1 degree F Heat flow - Answer-Transfer from hot to cold Conduction of heat - Answer-Heat transfer from one molecule to another within a substance or both substances are in contact with touching Convection of heat - Answer-Heat transfer from one place to another place using water, air or steam Radiant heat - Answer-Heat that passes...

HVAC Refrigeration Exam Questions And Answers With Verified Solutions Rated A+

HVAC 4 commercial and Refrigeration Final Questions and Answers (Graded A)HVAC 4 commercial and Refrigeration Final Questions and Answers (Graded A)HVAC 4 commercial and Refrigeration Final Questions and Answers (Graded A) On a low temperature defrost the fans stay running - ANSWER - False On medium temperature reach an evaporator with a box design temperature of 38 degrees, we normally need to us a planned defrost scheme - ANSWER - False On a medium temperature walk in system the thermos...

HVAC Refrigeration Final Practice Exam Questions And Answers With Verified Solutions