R410a - 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...

Commercial Refrigeration Final study guide Questions with Complete Solutions The order of the four main components of the refrigeration cycle is: Compressor - condenser - metering device - evaporator. The small line on a split system air conditioning unit is the: liquid line Where is the liquid receiver located? On the high side just after the condenser The line that connects the condenser to the metering device is called the: liquid line The discharge, liquid, and suction lines of a pack...

HVAC FINAL Exam Questions With Verified Solutions. Which of the following would have the greatest effect on the heat content of the refrigerant? A) The refrigerant's humidity B) The refrigerant's state C) The refrigerant's temperature D) The refrigerant's pressure - answerCorrect Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: - answerRemoving heat from the room. The four types of cooling mechanisms are: - answerEvaporative, Thermoelectric, Ab...

R410a PRACTICE TEST ...

Epa 608 Universal Elaborated Questions And Reviewed Answers Ozone - CORRECT ANSWER-03 atoms Air we breathe - CORRECT ANSWER-O2 Length of ozone - CORRECT ANSWER-7-28 miles above atmosphere ODP - CORRECT ANSWER-Ozone Depletion Potential What causes odp - CORRECT ANSWER-Chlorine containing refrigerants How many ozone molecules are destroyed by 1 chlorine molecule - CORRECT ANSWER-100,000 Montreal Protocol (1987) - CORRECT ANSWER-phase out of ozone depleting substances. UV radiation ri...

Heat that causes change in temperature of a substance - Answer-sensible heat Heat that is added with out a rise in temperature - Answer-latent heat Heat added to refrigerant in vapor state after evaporation process is - Answer-super heat Scroll compressor moves refrigerant by means of - Answer-involute spirals movement of heat by way of fluid or air - Answer-convection movement of heat by way of solid - Answer-conduction Standard unit for measuring heat - Answer-BTU refrigerant gives up h...

Because of its higher vapor heat capacity, the discharge temperature of R-410A is ____ than R-22. A. Higher B. Lower C. The same D. None of the above - Answer B. Lower R-410A is also known as: A. Suva 410A B. AZ-20 C. Puron D. All the above - Answer D. All the above Both suction and discharge pressures of R410a systems are _____ than R22 systems. A. The same B. 40% to 70% higher C. 60% lower D. 10% to 30% higher - Answer B. 40% to 70% higher The temperature glide fo...

sensible heat - Heat that causes change in temperature of a substance latent heat - Heat that is added with out a rise in temperature super heat - Heat added to refrigerant in vapor state after evaporation process is involute spirals - Scroll compressor moves refrigerant by means of convection - movement of heat by way of fluid or air conduction - movement of heat by way of solid BTU - Standard unit for measuring heat Condensor - refrigerant gives up heat in the liquid slugging - refrige...

HVAC FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Which of the following would have the greatest effect on the heat content of the refrigerant? A) The refrigerant's humidity B) The refrigerant's state C) The refrigerant's temperature D) The refrigerant's pressure Correct Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: Removing heat from the room. The four types of cooling mechanisms are: Evaporative, Thermoelectric, ...

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...