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Technical Drawing

Electrical Engineering · Level 5  ·  6 Chapters

Compiled by: Wanjiru Kariuki

Can I download Technical Drawing notes as a PDF?

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What Technical Drawing covers

Technical Drawing at Electrical Engineering Level 5 moves from equipment and plane geometry to AutoCAD and electrical diagrams. The work begins by identifying and caring for equipment and materials. Plane geometry covers lines, lettering, title blocks, angles, tangents, patterns and drawing conventions. Pictorial and orthographic drawing covers symbols, freehand sketches, isometric and oblique views. Two AutoCAD outcomes cover the interface, commands and file saving, then layouts and 2D drawings. Electrical drawing ends the unit: symbols, block and schematic diagrams, simulation and installation of components in a building.

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Careers after Technical Drawing

Technical Drawing prepares an electrical trainee to read plans and produce the drawings that guide installation work, from hand sketches to computer files.

  • Electrical installation firms in Nairobi - read wiring layouts and draw block and schematic circuit diagrams using electrical symbols and abbreviations.
  • Architectural and building design offices in Nakuru - produce 2D drawings in AutoCAD, set up layouts and save them in the correct file format.
  • Building sites in Mombasa - interpret orthographic views and electrical drawings to place components in a building.

  • Draughting services run by one person in Kisumu - sell hand and AutoCAD drawings and sketches to small contractors and home owners.

  • Electrical equipment suppliers in Eldoret - read drawing symbols and abbreviations so that parts match the diagram.

Care of drawing equipment and standard conventions apply in each role, from the first sketch to the saved file, and the unit's six outcomes feed into one another.

Chapters

1
Prepare Drawing Equipment and Materials
11 topics
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2
Produce Plane Geometry Drawings
20 topics
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3
Produce Pictorial and Orthographic Drawings of Components
6 topics
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4
Manage Basic Operations in AutoCAD
7 topics
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5
Develop Drawings in AutoCAD
6 topics
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6
Produce Electrical Drawings
6 topics
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What Technical Drawing covers: 38 main topics in 6 chapters

1. Prepare Drawing Equipment and Materials

  1. 1.1 Identification and Care of Drawing Equipment
  2. 1.2 Identification and Care of Drawing Materials
  3. 1.3 Reference to manufacturer's instructions and work place procedures on use and maintenance of drawing equipment and materials

2. Produce Plane Geometry Drawings

  1. 2.1 Types of Lines in Drawings
  2. 2.2 Freehand Printing of Letters
  3. 2.3 Borderlines and Title Blocks
  4. 2.4 Construction of Different Angles
  5. 2.5 Measurement of Different Angles
  6. 2.6 Bisection of Different Angles and Lines
  7. 2.7 Construction of Geometric Figures
  8. 2.8 Patterns Development
  9. 2.9 Different Types of Tangents
  10. 2.10 Standard Drawing Conventions

3. Produce Pictorial and Orthographic Drawings of Components

  1. 3.1 Meaning of Pictorial and Orthographic Drawings
  2. 3.2 Meaning of Symbols and Abbreviations
  3. 3.3 Free Hand Sketching of Different Types of Geometric Forms, Tools and Equipment
  4. 3.4 Drawing and Interpretation of Orthographic Elevations
  5. 3.5 Drawing Objects in Isometric View
  6. 3.6 Drawing Objects in Oblique View

4. Manage Basic Operations in AutoCAD

  1. 4.1 Identification of Key Features of CAD Software
  2. 4.2 AutoCAD Visual Reference Commands
  3. 4.3 AutoCAD Ribbon Tools
  4. 4.4 AutoCAD Status Bar Tools
  5. 4.5 AutoCAD Navigation Commands
  6. 4.6 AutoCAD Drawing Work
  7. 4.7 Saving of AutoCAD Drawing Files in Proper Format

5. Develop Drawings in AutoCAD

  1. 5.1 Setting Up of Drawing Interface
  2. 5.2 Creating Drawing Layouts
  3. 5.3 Creation of 2D Drawings
  4. 5.4 Editing/Modification of 2D Drawings
  5. 5.5 Saving AutoCAD Drawings
  6. 5.6 AutoCAD 2D Drawing Work

6. Produce Electrical Drawings

  1. 6.1 Electrical Symbols and Abbreviations
  2. 6.2 Meaning of Electrical Drawings
  3. 6.3 Drawing of electrical diagrams e.g. block, schematic, circuit, line and wiring
  4. 6.4 Drawing of Electrical and Electronic Drawings Using an Appropriate CAD Software
  5. 6.5 Simulation of Electrical and Electronic Drawings
  6. 6.6 Installation of Electrical Components in a Building Plan Using AutoCAD

Revise this unit

Exam-style questions 84 Written to CDACC standard, with answers Test yourself 238 Multiple-choice, one at a time Practise questions 123 Quick recall — check you know the facts
3 more for this unit
Oral exam preparation 55 What the assessor asks, and how to answer out loud Worked calculations 27 Step-by-step maths with the common mistakes Quick cards 1,168 Myth busters, skill tips and scenarios

Beyond the syllabus

Decision simulator 6 On site, what would you do? Workplace scenarios 101 Real site situations — what would you do? Turn this into income 60 Where this skill earns — what to charge, how to find clients

Other units in Module III