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Technical Drawing

Interior Design · Level 6  ·  6 Chapters

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What Technical Drawing covers

In this unit, you will be able to confidently use and care for the essential drafting tools to create precise and professional technical drawings. You will master the skills to produce neat border lines, title blocks, and accurate geometric shapes, while applying correct line types and architectural symbols. By the end, you’ll be able to sketch clear orthographic projections and present your work with the precision and clarity needed in real-world technical and architectural projects.

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Careers after Technical Drawing

Technical drawing is a foundational skill that opens doors to many practical and rewarding careers in Kenya’s growing industries. Whether you dream of working on the construction of Nairobi’s skyline, designing efficient irrigation systems in the agricultural sector, or innovating in the jua kali workshops, mastering technical drawing equips you with the ability to communicate ideas clearly and bring projects to life.

  • In the construction industry, skilled drafters create detailed blueprints for buildings, roads, and bridges used by companies like County Works Departments and private construction firms. Accurate drawings ensure safety and efficiency on site, and professionals here earn stable wages or can start their own drafting service.
  • In Kenya’s agribusiness sector, especially with organizations like KTDA, technical drawings help design tea factories, irrigation layouts, and storage facilities. This skill supports innovation and optimization, boosting productivity and income.
  • The jua kali sector relies heavily on technical drawing for fabricating metal parts, machinery, and custom tools. Entrepreneurs who master these drawings can create unique products, attract clients, and grow their businesses.
  • In the energy sector, companies such as KenGen use technical drawings to plan and maintain power plants and electrical systems. Skilled drafters here enjoy professional careers with opportunities for advancement.
  • The matatu industry benefits from technical drawings in vehicle customizations and workshop repairs, supporting mechanics and designers in delivering quality services.
  • In hospitality and tourism, technical drawings assist in designing hotels and resorts, ensuring functional and aesthetic spaces that attract visitors and generate income.

By mastering technical drawing, you not only gain a valuable skill for employment but also open up pathways to entrepreneurship and innovation. Your ability to visualize and communicate complex ideas will make you indispensable in Kenya’s dynamic workforce. Keep practicing—your future as a skilled professional or successful business owner starts here!

Chapters

1
Determine tools and equipment
5 topics
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2
Apply line types and symbols
12 topics
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3
Produce plane geometry
23 topics
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4
Produce orthographic projections
54 topics
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5
Apply dimensions and annotations
7 topics
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6
Produce pictorial drawings
29 topics
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What Technical Drawing covers: 54 main topics in 6 chapters

1. Determine tools and equipment

  1. 1.1 Introduction to technical drawing
  2. 1.2 Identification of manual drafting tools
  3. 1.3 Tools specification and selection
  4. 1.4 Application of Drafting tools
  5. 1.5 Maintenance of Drafting tools are maintained

2. Apply line types and symbols

  1. 2.1 Mounting drawing sheets
  2. 2.2 Identification of border lines and title blocks
  3. 2.3 Standards for lettering styles
  4. 2.4 Types of lines and their meanings
  5. 2.5 Architectural symbols
  6. 2.6 Importance of clarity in drawings
  7. 2.7 Application of drafting lines and architectural symbols
  8. 2.8 Dividing lines and circles into equal parts and ratios
  9. 2.9 Inscribing and circumscribing circles

3. Produce plane geometry

  1. 3.1 Construction of Geometric Forms
  2. 3.2 Construction of Angles
  3. 3.3 Measurement of Angles
  4. 3.4 Construction of scales
  5. 3.5 Geometric construction techniques
  6. 3.6 Labelling of Constructed figures
  7. 3.7 Presentation of Constructed figures

4. Produce orthographic projections

  1. 4.1 Identification of Drawing Lines
  2. 4.2 Line thickness and applications for technical clarity
  3. 4.3 Orthographic Projection Techniques
  4. 4.4 Principles of first angle and third angle projections
  5. 4.5 Views in orthographic drawings
  6. 4.6 Dimensioning and Lettering
  7. 4.7 Accurate dimensioning techniques for orthographic drawings
  8. 4.8 Standards for lettering styles and alignment
  9. 4.9 Construction of Orthographic Views
  10. 4.10 Techniques for freehand and scaled drawings
  11. 4.11 Freehand Drawing Techniques
  12. 4.12 Use of scale rulers and accuracy in scaled drawings
  13. 4.13 Interpretation of Orthographic Drawings
  14. 4.14 Standard conventions for orthographic projections
  15. 4.15 Application of orthographic views in architectural and interior design contexts

5. Apply dimensions and annotations

  1. 5.1 Types of dimensioning
  2. 5.2 Purposes of dimensions
  3. 5.3 Dimension line drawing
  4. 5.4 Placement of dimensions
  5. 5.5 Labelling of views, placements and materials
  6. 5.6 Annotations
  7. 5.7 Application of Standard notation and abbreviations

6. Produce pictorial drawings

  1. 6.1 Isometric Drawings
  2. 6.2 Techniques for producing isometric drawings as per conventions
  3. 6.3 Applications of isometric drawings in interior design and architecture
  4. 6.4 Axonometric drawing
  5. 6.5 Applications of axonometric drawings in interior design and architecture
  6. 6.6 Oblique Drawings
  7. 6.7 Distinctions between isometric and oblique views
  8. 6.8 Real world applications of oblique drawings
  9. 6.9 Perspective Drawings
  10. 6.10 Display of the pictorial drawings
  11. 6.11 Presentation of the pictorial drawings displayed.

Revise this unit

Exam-style questions 84 Written to CDACC standard, with answers Test yourself 199 Multiple-choice, one at a time Practise questions 95 Quick recall — check you know the facts
3 more for this unit
Oral exam preparation 48 What the assessor asks, and how to answer out loud Worked calculations 28 Step-by-step maths with the common mistakes Quick cards 991 Myth busters, skill tips and scenarios

Beyond the syllabus

Decision simulator 5 On site, what would you do? Workplace scenarios 101 Real site situations — what would you do? Turn this into income 48 Where this skill earns — what to charge, how to find clients

Other units in Module II