Btuh - Study guides, Class notes & Summaries

Nate Core Exam Questions With 100% Verified Answers 1kwh of electric power is equivalent to ___ btu per hour. A. 3142 B. 6412 C. 9412 D. 6812 - answerA Gas valves operate at ____ voltage. A. 120v B. 230v C. 24v D. 12v - answerC What will be the resistance in the circuit if the supply voltage is 30v and current flowing through the circuit is 5A. ©BRAINBARTER 2024/2025 A. 3 ohms B. 1/3 ohms C. 1/6 ohms D. 6 ohms - answerD Furnaces are placed into categories based upon. A. Vent...

Nate core Exam Questions with 100% Verified Correct Answers Graded A+ 1kwh of electric power is equivalent to ___ btu per hour. A. 3142 B. 6412 C. 9412 D. 6812 - Correct Answer A Gas valves operate at ____ voltage. A. 120v B. 230v C. 24v D. 12v - Correct Answer C What will be the resistance in the circuit if the supply voltage is 30v and current flowing through the circuit is 5A. A. 3 ohms B. 1/3 ohms C. 1/6 ohms D. 6 ohms - Correct Answer D Furnaces are placed into c...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% - c (+15%) The maximum sensible cooling capacity of a heat pump should be within _...

NATE Exam: Air Conditioning and Heat Pumps Exam Questions And Answers Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - ANS d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +3...

HVAC S.T.A.R EXAM QUESTIONS AND ANSWERS 100% PASS The evaporator in a refrigeration system: - Correct Answer ️️ -Is the component where refrigerant boils and absorbs heat. The purpose of the compressor is to change ___________. - Correct Answer ️️ -Low- pressure, low-temperature vapor to a high-pressure, high temperature vapor A common refrigerant leak detection device is the: - Correct Answer ️️ -Halide torch. Copper-plating of compressor parts is: - Correct Answer ️️ -Ca...

Gas Tech 2 Questions and Answers Already Passed What is the minimum diameter of a pressure gauge needed to perform leak test on gas piping? 3" Amp meter can read what? Conductor magnetic field What would be the primary voltage of a furnace? 120/1/60 What is the function of an intermittent pilot? Stays on during the main burner operation What are the millivolts power output on a closed circuit test? A. 20 to 30 millivolts. B. 10 to 15 millivolts. C. 2 to 4 millivolts. D. 10 millivolts or...

NATE Air Conditioning and Heat Pump Study Questions and Answers 2023 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 calcul...

HVAC NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (Graded A+) What is the primary purpose of using flux when soldering copper or brass parts? -Ans Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? -Ans Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? -AnsExcessive ice can build up on the bottom of the coil and can reduce capacity. What is the component th...

According to the SMC group, #2 refrigerants are - Toxic, flammable, explosive under certain conditions, and includes ammonia and SO. A hermetic system is a totally enclosed refrigeration system when the - Motor and compressor are sealed within the same system with the refrigerant. A heat pump has what type of valve that redirects refrigerant flows from heating to cooling? - A four way reversing valve A capillary tube system responds to an overcharge by - Head pressure. A capillary tube sy...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% - c (+15%) The maximum sensible cooling capacity of a heat pump should be w...