Hvacr electrical - Study guides, Class notes & Summaries

A technician uses an ohmmeter to check resistance and for a complete path in the electrical circuit, also known as: - Continuity. A wattmeter is connected to a circuit with 120 V, 10 A, and a power factor of 91.7%. Its reading is: - 1,100 W. An ohmmeter is set on continuity and beeps when the leads are connected to a circuit. This indicates that: - The circuit path is complete. Before attempting to use an electric meter to measure the circuits on a system, the technician should: - Underst...

1 hp = - Answer-746 watts 100 milliamps= - Answer-0.1 amps 2.1KV= - Answer-2100V 3 resistors are wired in series. Each is 300 ohms. What is the total resistance? - Answer-900 ohms A 240V 3 wire circuit can be split into two 120V circuits - Answer-True a black colored wire usually indicates - Answer-a hot wire A capacitor analyzer can; - Answer-read power factor percentage, diagnose an open or shorted capacitor, read the microfarad rating of a capacitor A solenoid valve operates on the pr...

In HVACR terms, what is a feature? - Answer-A special characteristic of a product. In HVACR terms, what is a benefit? - Answer-The value the customer receives from using the feature What type of temperature is often used by customers when discussing human comfort? - AnswerDry bulb What is an honest person? - Answer-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 electrical...

What are the five basic components to any schematic? correct answers1. 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 answers1. The ladder diagram 2. The pictorial diagram 3. The installation dia...

HVACR Practice Test Accurate 100%(RATED A+)What is the symbol for impedance? a. R b. I c. Z d. P - ANSWER z The safety ground conductor for A/C circuit is usually color coded ________. a. red b. green c. black d. white - ANSWER Green Resistance is _______. a. amperage b. electrical pressure c. opposition to current flow d. voltage applied to the circuit - ANSWER opposition to current flow How many watts of power are used by a heater operating at 480 volts and drawing 5 amps?...

What are the five basic components to any schematic? - ANS 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? - ANS 1. The ladder diagram 2. The pictorial diagram 3. The installation diagr...

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 electrical pressure? Volt How is li...

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated (GRADED A+) 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 d...

Nate core exam Question and answers already passed 2023 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 core exam latest complete solution 2024 A+ GRADED 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...