NATE AIR CONDITIONING AND HEAT PUMP ACTUAL 2025/2026

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NATE AIR CONDITIONING AND HEAT PUMP ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Which of the following factors affects a customers level of comfort? - Answer -All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. - Answer -+15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. - Answer -+25% The combined output of a heatpump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. - Answer -15% What amount of auxiliary electronic heat is needed when the output of a heat pump on a design day equals 18,800 Btuh and the heat loss of a home is 29,700 Btuh? - Answer -3.2 kWh The three processes that transfer heat energy are conduction, convection, and _________. - Answer -Radiation Heat transfer that occurs when substances of different temperatures are in contact with each other is called _______. - Answer -conduction What effect does raising the pressure in a sealed system have on Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com refrigerant? - Answer -The boiling point increases What is the primary danger to people near an accidental refrigerant release or spill? - Answer -suffocation caused by the heavier refrigerant displacing oxygen in the air The maximum temperature at which refrigerant may be stored is ______ F when the container is no more than ____% full of liquid by volume.; - Answer -125 F, 80% Boiling of the refrigerant occurs in which system component? - Answer -Evaporator Why is superheat necessary in a system that utilizes hermetic compressors - Answer -It ensures that dry vapor reaches the compressor so that mechanical damage does not occur When the heat load on an evaporator increases, what is the effect on the system? - Answer -Suction pressure and discharge pressure both increase What type of energy is transferred when work is done in the condenser? - Answer -Both latent and sensible heat energy What is the primary function performed by a thermal expansion valve? - Answer -It maintains the correct superheat in the suction vapor leaving the evaporator Which component pumps refrigerant through the system and raises the vapor temperature? - Answer -compressor How are hermetic compressor motors cooled? - Answer -With suction vapor drawn from the evaporator Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com