Nate core exam Questions with 100% Correct Answers| Graded A+
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 characteristics of a ladder diagram 1. Provides the most helpful information for electrical troubleshooting 2.The intention of the overall schematic is to show how the circuit functions not how it actually looks. Describe the characteristics of a pictorial diagram 1. Usually includes drawings that more closely resemble the components themselves rather than the symbols. 2. Provides the best indication of the actual positions of the components in the equipment or control panel. Describe the characteristics of an installation diagram 1. Used primarily By the person installing equipment 2. It normally only shows what the terminal board connections are and may or may not include any internal wiring of the unit 3. Field wiring Generally represented as Dashed lines. 4. Thicker lines represent line voltage wiring(120/240 V) 5. Thin lines represent low-voltage control wiring
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