Hvacr unit Study guides, Class notes & Summaries

HVACR CONTROLS UNIT 13 TEST ..

Nate core exam study guide with Complete Solutions 100% verified What are the five basic components to any schematic? - Correct Answer 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? - Correct Answer 1....

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated 2024/2025 (GRADED) 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 _____...

What are the five basic components to any schematic? correct answers 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? correct answers 1. The ladder diagram 2. The pictorial diagram 3. The installation d...

In HVACR terms, what is a feature? correct answers A special characteristic of a product. In HVACR terms, what is a benefit? correct answers The value the customer receives from using the feature What type of temperature is often used by customers when discussing human comfort? correct answers Dry bulb What is an honest person? correct answers A person who is free from fraud or deception, credible, and is marked with integrity. An honest person is fair in their dealings with other peopl...

In HVACR terms, what is a feature? - ️️A special characteristic of a product. In HVACR terms, what is a benefit? - ️️The value the customer receives from using the feature What type of temperature is often used by customers when discussing human comfort? - ️️Dry bulb What is an honest person? - ️️A person who is free from fraud or deception, credible, and is marked with integrity. An honest person is fair in their dealings with other people. What is the unit of electr...

What are the five basic components to any schematic? 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? 1. The ladder diagram 2. The pictorial diagram 3. The installation diagram Describe the characteris...

(I) represents in equation - "intensity" 12-gauge (AWG)= 20 amps is recommended for - residential receptacle outlets. 14-gauge (AWG)= 15 amps wire be suitable for - lighting circuits. a breaker rated for 15 amps is installed into a 30 amp circuit - not enough current to flow a breaker that is rated at 30 amps installed into a 15 amp circuit - would allow too much current flow. a closed circuit is - a circuit with complete path and allows the load to function. A kilowatt is equal to - 1,...

A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called: - Brine. Air-conditioning tube-and-fin coils are commonly available as: - Slab coils, slant coils, "A" coils, and "N" coils. An evaporator in which refrigerant enters as a saturated liquid vapor mix and leaves as a superheated vapor is a: - Direct expansion evaporator. An evaporator that covers the coils being cooled with liquid refrigerant is a:...