Wiring and Cabling Diagrams in Electronics
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary purpose of wire in an electrical circuit?

  • To create resistance
  • To serve as a current amplifier
  • To connect two points together (correct)
  • To provide insulation

Which material is commonly used for making wiring due to its low resistance?

  • Copper (correct)
  • Gold
  • Plastic
  • Iron

What is essential for the correct drawing of wire in an electronic assembly?

  • Labeling each wire with names
  • Ordering by length
  • Using multiple colors
  • Using the correct size and style (correct)

What type of drawing provides the physical relationship in electronic packaging?

<p>Wiring diagram (B)</p> Signup and view all the answers

Which of the following best describes cables in the context of wiring and cabling diagrams?

<p>Groups of wires bundled together (D)</p> Signup and view all the answers

In wiring diagrams, which term describes the methods of finishing or joining wire ends?

<p>Termination (D)</p> Signup and view all the answers

What is typically NOT a characteristic of connecting wire?

<p>High resistance (C)</p> Signup and view all the answers

Which method is least likely used for making electrical connections in wiring diagrams?

<p>Gluing (B)</p> Signup and view all the answers

What is the equivalent solid wire gauge of an 8/34 stranded wire?

<p>AWG #25 (D)</p> Signup and view all the answers

What is the maximum amount of current that can be carried by a stranded wire compared to solid wire?

<p>60% (D)</p> Signup and view all the answers

Which of the following best describes the purpose of insulation on conductors?

<p>To protect against electrical shock and prevent unwanted connections (C)</p> Signup and view all the answers

What is included in a wiring diagram?

<p>The size and type of wire, insulation, and type of connection (C)</p> Signup and view all the answers

What kind of termination might be used in equipment with interchangeable sections?

<p>Plug-type assemblies (D)</p> Signup and view all the answers

How is the type of insulation determined for conductors?

<p>By the environmental conditions and application needs (C)</p> Signup and view all the answers

What is the role of colors used in insulation materials?

<p>To aid in tracing circuit connections (D)</p> Signup and view all the answers

What is a common characteristic of all wiring diagrams?

<p>They must include components, connection lines, and means of connection (B)</p> Signup and view all the answers

What is the primary purpose of a baseline diagram?

<p>To present complex circuits in a compact format (C)</p> Signup and view all the answers

How should short feeder lines terminate in relation to the baseline?

<p>Perpendicular to the baseline (A)</p> Signup and view all the answers

What type of diagram is referred to as a lineless diagram?

<p>Tabular form diagram (C)</p> Signup and view all the answers

What is a key characteristic of the baseline in diagrams?

<p>It is usually represented as a heavyweight dark line (D)</p> Signup and view all the answers

When multiple baselines are used in a complex circuit, what is a common effect?

<p>It allows feeder lines to connect to different baselines (A)</p> Signup and view all the answers

What should a tabular form diagram include for each wire?

<p>The color and type of insulating material (A)</p> Signup and view all the answers

In baseline diagrams, all changes in direction should form what kind of angles?

<p>90-degree angles (A)</p> Signup and view all the answers

What is a cable defined as in the context of wiring diagrams?

<p>A group of two or more insulated conductors (A)</p> Signup and view all the answers

What is the main advantage of using a highway diagram for drawing layouts?

<p>It allows the wires to be bundled together efficiently. (D)</p> Signup and view all the answers

What distinguishes a harness from a cable?

<p>A cable consists of separate, insulated wires. (B)</p> Signup and view all the answers

What is a key characteristic of an interrupted line diagram?

<p>It organizes many wires with minimal visual clutter. (D)</p> Signup and view all the answers

What is the primary purpose of a trial sketch in the preparation of wiring diagrams?

<p>To determine size requirements and types of drawings needed (C)</p> Signup and view all the answers

Why may wires that travel through the assembly not be bundled together?

<p>Due to variations in wire lengths and connections. (A)</p> Signup and view all the answers

What does a cable typically represent in electrical installations?

<p>A combination of wires insulated from each other as a single unit. (C)</p> Signup and view all the answers

What is the recommended minimum distance between connection lines on wiring diagrams after reductions?

<p>1/2 in. (A)</p> Signup and view all the answers

In which cases is it more practical to use a continuous line diagram?

<p>When creating simple and straightforward wiring layouts. (D)</p> Signup and view all the answers

What type of lines are traditionally used for the majority of the wiring diagram?

<p>Black, medium-weight lines (A)</p> Signup and view all the answers

Why should junctions or splices be avoided in electronic assemblies according to wiring diagram conventions?

<p>They complicate the diagram unnecessarily. (C)</p> Signup and view all the answers

What does a harness assembly typically involve?

<p>Connecting a group of wires as a single unit. (A)</p> Signup and view all the answers

Why might an interrupted line diagram not be convenient for production?

<p>Components are not accurately placed in physical relationships. (A)</p> Signup and view all the answers

What is the significance of using templates in wiring diagram preparation?

<p>They help maintain uniformity in component outlines. (D)</p> Signup and view all the answers

How should wire identification lettering be aligned in wiring diagrams?

<p>To be read from no more than two sides (D)</p> Signup and view all the answers

What is a guideline for the spacing of crossover lines in wiring diagrams?

<p>Crossover and jogs should be minimized. (A)</p> Signup and view all the answers

What should be included in the wiring diagram besides component identification?

<p>Specific wire identification and specifications (C)</p> Signup and view all the answers

What is the primary difference between a cable and a wiring harness?

<p>A cable includes a protective outer covering, whereas a harness does not. (B)</p> Signup and view all the answers

What is a common use of flat ribbon cables?

<p>To connect one subassembly to another with minimal routing space. (C)</p> Signup and view all the answers

What preliminary step is crucial before preparing a harness diagram?

<p>Reviewing the wiring diagram to understand the harness shape. (C)</p> Signup and view all the answers

How are harness wires typically treated in terms of environment and protection?

<p>Wires in a harness may have some type of clear coating for protection. (A)</p> Signup and view all the answers

In what format is the harness diagram usually prepared?

<p>True size to reflect accurate dimensions. (A)</p> Signup and view all the answers

What is a wiring harness?

<p>A collection of wires bundled together primarily for convenience. (A)</p> Signup and view all the answers

Why do cable assemblies require individual drawings separate from the wiring diagrams?

<p>They involve different routing and connections that must be detailed. (B)</p> Signup and view all the answers

What is the advantage of using a ribbon cable in assembly processes?

<p>It fits through small slots, saving routing space between assemblies. (C)</p> Signup and view all the answers

Flashcards

Wiring Diagram

A diagram illustrating the physical connections between components in an electronic or electrical system.

Wire Gauge

Measurement of wire diameter, affecting current-carrying capacity.

Wire Termination

Methods for connecting wires to components or other wires.

Wiring Diagram Parts

Components of a wiring diagram, like symbols representing components and wire connections.

Signup and view all the flashcards

Cables and Harnesses

Bundled wires used in electronic equipment for complex connections.

Signup and view all the flashcards

Wire Material

Materials such as copper or aluminum used in wires to allow current flow.

Signup and view all the flashcards

Wire Function

Connects two points in a circuit, ideally without altering its electrical characteristics or function.

Signup and view all the flashcards

Wire Types

Different sizes, styles, and types of wire used in various electronic systems.

Signup and view all the flashcards

8/34 wire

A wire composed of 8 strands of #34 gauge wire.

Signup and view all the flashcards

Circular mils

A unit of area used to measure wire cross-sectional area.

Signup and view all the flashcards

Wire Insulation

Material that covers a wire to prevent electrical connections between wires or with metal.

Signup and view all the flashcards

Wiring Diagram Labels

Essential information on a diagram, including wire size, insulation type, and connection details.

Signup and view all the flashcards

Wiring Diagram Components

All parts, connections, and methods of connection on a wiring diagram.

Signup and view all the flashcards

Wire Connection Methods

Ways to connect wires, such as soldering or using connectors (terminals, clips).

Signup and view all the flashcards

Derating Current

Reducing the maximum allowed current to a lower value, often 60% in certain cases.

Signup and view all the flashcards

Tracer Wires

Insulated wires with coloured stripes for identifying circuits.

Signup and view all the flashcards

Highway Diagram

A wiring diagram that groups wires traveling in the same direction into a main highway.

Signup and view all the flashcards

Harness

A group of wires assembled together in precut lengths, bends, and terminations.

Signup and view all the flashcards

Cable

Two or more insulated wires or conductors as a single unit.

Signup and view all the flashcards

Interrupted Line Diagram

A wiring diagram used for complex circuits showing wire connections concisely even if not physically accurate.

Signup and view all the flashcards

Number Code

A method of identifying each component, lead, and destination using sequential numbers.

Signup and view all the flashcards

Trial Layout

A preliminary circuit design that helps determine effective wire routing.

Signup and view all the flashcards

Baseline/Airline Method

A simplified circuit diagram focusing on main lines and connections. Placement of lines does not necessarily reflect actual physical routing.

Signup and view all the flashcards

Baseline Diagram

A wiring diagram that uses an imaginary line (baseline) and short feeder lines to show the connections between terminals in a circuit.

Signup and view all the flashcards

Feeder Lines

Short lines extending from the baseline to each terminal in a circuit, showing wiring connections.

Signup and view all the flashcards

90-degree Turns

When drawing feeder lines, turn at right angles (90 degrees) when terminal markings are in a circle and can't connect directly to the baseline.

Signup and view all the flashcards

Baseline Location

The baseline can be placed down the center of the drawing with components on both sides, or on any side depending on the circuit complexity.

Signup and view all the flashcards

Tabular Wiring Diagram

A wiring diagram that lists connections in a table, not drawing lines.

Signup and view all the flashcards

Cable Definition

A cable is a group of insulated conductors with the conductors at each end being positioned at approximately the same location.

Signup and view all the flashcards

AWG Number

A wire gauge standard that indicates the diameter of a wire.

Signup and view all the flashcards

Wiring Diagram Types

The three main types of wiring diagrams are baseline, tabular (lineless), and those using cables/harnesses.

Signup and view all the flashcards

What is a cable assembly?

A group of wires bundled together with a protective outer covering, typically used to connect subassemblies with mating connectors.

Signup and view all the flashcards

What is a flat ribbon cable?

A type of cable assembly with conductors arranged side-by-side, resembling a flat ribbon.

Signup and view all the flashcards

What is a wiring harness?

A group of wires bundled together without a protective outer covering used to connect components in a circuit.

Signup and view all the flashcards

What's the difference between a cable assembly and a wiring harness?

A cable assembly has a protective outer covering, while a wiring harness does not. A harness can also have various wire lengths and branch off at different locations.

Signup and view all the flashcards

Why are special drawings needed for cables and harnesses?

They require detailed information about wire lengths, branching points, and connector types, separate from general wiring diagrams.

Signup and view all the flashcards

What is a highway-type drawing?

A wiring diagram that shows the physical relationships, sizes, and locations of all components.

Signup and view all the flashcards

Why is a harness diagram typically drawn true size?

To accurately represent the physical layout and dimensions of the wiring harness.

Signup and view all the flashcards

What are some key considerations for harness diagrams?

Harnesses need to be designed to fit within the available space, provide sufficient wire length and routing, and meet safety and environmental requirements.

Signup and view all the flashcards

Trial Sketch Purpose

A preliminary drawing to determine size, required assemblies (cables/harnesses), and the desired type of final drawing.

Signup and view all the flashcards

Grid Paper For Wiring Diagrams

Grid paper or underlay is helpful for creating wiring diagrams because they are typically drawn on a vertical and horizontal grid.

Signup and view all the flashcards

Connection Lines Spacing

Spacing between connection lines on a wiring diagram should be equal and at least ½ inch after reductions.

Signup and view all the flashcards

Junctions in Wiring Diagrams

Unlike schematics, junctions are rarely made in wiring diagrams. Connections go directly from one terminal to another.

Signup and view all the flashcards

Line Weight in Wiring Diagrams

All lines in wiring diagrams are generally the same weight and color, typically black and medium-weight.

Signup and view all the flashcards

Component Outlines and Symbols

Thin-weight lines can be used for component outlines or symbols to avoid confusion in wiring diagrams.

Signup and view all the flashcards

Lettering in Wiring Diagrams

Lettering in wiring diagrams should be clear, consistent, and readable from no more than two sides.

Signup and view all the flashcards

Wire Identification in Wiring Diagrams

Each wire in a wiring diagram includes identification of all specifications, usually with lettering in a break in the line.

Signup and view all the flashcards

Study Notes

Wiring and Cabling Diagrams Electronic Packaging

  • Wiring Diagrams: Visual representations aiding in the assembly and production of electronic packages. They illustrate the physical relationship between components.
  • Wire Gauge: The size of a wire, determined by standardized American Wire Gauge (AWG) numbers. Smaller numbers denote larger wires
  • Wire Insulation: Covers for wires, often using various colors/tracers for identification. Insulation prevents electrical contact with other components.
  • Wire Termination: Methods for connecting wires include soldering or using terminals, clips, plugs, etc. The method depends on how often the connection may need to be removed.
  • Wire Types: Wires can be single strands or multiple strands, and the material (copper, aluminum) affects resistance.
  • Stranded Wire: Flexible wire made up of multiple strands; can handle slightly less current than a solid wire with the same cross-sectional area. Use in assembly where there may be excessive movement.
  • Wiring Diagram Components: Must include components (parts, terminals), connection lines, and connection means.
  • CAD Diagrams: Computer-aided design (CAD) can create wiring diagrams with accuracy and ease.
  • Wiring Diagram Types:
    • Continuous Line: Shows every wire connection. Useful for simple circuits; detailed but can become confusing with many wires.
    • Interrupted Line (Baseline): Used for complex wiring, less physically accurate but efficient space-wise and shows organization of multiple connections, allowing for broader understanding.
    • Tabular Form: A lineless diagram using a table format to list connections. Shows all wire specifications and can reduce space on the diagram.

Activity 5

  • Objective: Prepare wiring for a fluorescent tube light.
  • Components Required: Switch, tube lamp, fitting, choke, starter, tube, holder, joint clips, switch board screws.
  • Fluorescent Lamp Circuit: Includes a choke, fluorescent tube, starter and a frame, typically 40W, 230V using argon and mercury.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Topic-V Wiring and Cabling Diagrams Electronic Packaging PDF

Description

This quiz explores essential concepts related to wiring and cabling diagrams used in electronic packaging. It covers wire gauge, insulation types, termination methods, and the differences between stranded and solid wire. Test your knowledge on how these components contribute to assembly and production processes.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser