Umat SRID GL155 beginner

GL155: Technical drawing

Free study notes for GL155 (GL 155) — Technical drawing at Umat SRID, one topic at a time, each with worked examples and a practice quiz.

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Course Syllabus

  1. Introduction to Technical Drawing and Drawing Instruments
  2. Geometric Constructions
  3. Orthographic Projection (First Angle and Third Angle)
  4. Dimensioning and Tolerancing
  5. Isometric and Oblique Projections
  6. Working Drawings and Assembly Drawings

Study Notes

Orthographic Projection (First Angle and Third Angle)

Free model

The goal is to provide enough views so that someone looking at the drawing can completely understand the object's shape, size, and features without ambiguity. Typically, three views are used:
* Front View (or Elevation): Shows the most descriptive face of the object.
* Top View (or Plan): Shows the object looking down from above.
* Side View (or End View): Shows the object from either the left or right side.

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Dimensioning and Tolerancing

Free model
  • Size Dimensions: Specify lengths, widths, diameters, radii, and angles.
  • Location Dimensions: Specify the positions of features relative to other features or a datum.
  • Reference Dimensions: Are shown for information only and aren't used for manufacturing or inspection (often in parentheses).
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GL155: common questions

What does GL155 cover?

This GL155 study guide covers 6 topics: Introduction to Technical Drawing and Drawing Instruments, Geometric Constructions, Orthographic Projection (First Angle and Third Angle), Dimensioning and Tolerancing, Isometric and Oblique Projections, Working Drawings and Assembly Drawings.

Are these GL155 notes free?

Yes. Every GL155 note on this page is free to read without an account. A free account adds practice quizzes, flashcards and a revision plan.

How do I revise for my GL155 exam?

Read the GL155 note for each topic, then take its practice quiz: the questions you get wrong come back as flashcards until you know them. Save the course to get a revision plan built around your exam date.