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CADD-2 Lesson 5
Elecrical Drafting and Schematics
Question | Answer |
---|---|
Electronics | has to do with the flow of electrons moving through metal conductors and other conductors. |
Voltage | Electrical pressure |
Current | A steady stream of electrons |
Direct Current | a flow of electrons through a circuit in one direction only |
Alternating Current | is a flow of electrons in one direction during a fixed time period, and then in the opposite direction during a similar time period |
Series circuits | are those in which the current flows from the power source through one resistance after another |
Parallel circuits | let the current flow through more than one path simultaneously |
Circuit Board | Uses metal, generally copper, printed on a composite board to take the place of wires. Printed Circuit Boards are usually drawn at a much larger scale (4 to 400 times it’s normal size) to show specific details |
Conductors | Material with a small resistance to the flow of electrons. |
Insulators | Material through which electrons will not flow |
Single Line Diagram | Shows the course of an electrical circuit using single lines and graphic symbols. |
Schematic Diagram | Shows the ways a circuit is connected and what the circuit does. |
Block Diagram | Usually made up of squares or rectangles connected by single lines. Shows how the components are related when the circuit is working. |
Wiring Diagram | Simply shows how the components of a circuit are connected. |