NATE CORE EXAM 2024/2025 WITH
100% ACCURATE SOLUTIONS
,NATE CORE EXAM 2024/2025 WITH
100% ACCURATE SOLUTIONS
What are the five basic components to any schematic? - Precise 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? - Precise Answer ✔✔1. The ladder diagram
2. The pictorial diagram
3. The installation diagram
Describe the characteristics of a ladder diagram - Precise Answer ✔✔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 - Precise Answer
✔✔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 - Precise Answer
✔✔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
What is a switch? - Precise Answer ✔✔A switch is a device that
interrupts power to the load. It may be manually or automatically
activated by pressure, temperature or it may be an electrically controlled
switch
What is a load? - Precise Answer ✔✔A load is a device that consumes
power and converts it into some other form of energy
Describe the side-by-side arrangement four wire diagrams - Precise
Answer ✔✔Usually arranges motors and other power consuming
components on the right side of the diagram called the "load" side. The
switches and other controllers are placed on the left side of the diagram
called the "line"side.
100% ACCURATE SOLUTIONS
,NATE CORE EXAM 2024/2025 WITH
100% ACCURATE SOLUTIONS
What are the five basic components to any schematic? - Precise 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? - Precise Answer ✔✔1. The ladder diagram
2. The pictorial diagram
3. The installation diagram
Describe the characteristics of a ladder diagram - Precise Answer ✔✔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 - Precise Answer
✔✔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 - Precise Answer
✔✔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
What is a switch? - Precise Answer ✔✔A switch is a device that
interrupts power to the load. It may be manually or automatically
activated by pressure, temperature or it may be an electrically controlled
switch
What is a load? - Precise Answer ✔✔A load is a device that consumes
power and converts it into some other form of energy
Describe the side-by-side arrangement four wire diagrams - Precise
Answer ✔✔Usually arranges motors and other power consuming
components on the right side of the diagram called the "load" side. The
switches and other controllers are placed on the left side of the diagram
called the "line"side.
