Computer-Aided Design (CAD) Fundamentals is one of 9 topics in the Grade 12 Engineering Graphics and Design CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What is a layer in CAD?
A named, independently controllable sheet within the same drawing file onto which different categories of content are placed
A physical sheet of paper used only for printing
A type of dimension line
A synonym for the drawing's title block
Answer: A named, independently controllable sheet within the same drawing file onto which different categories of content are placed — A layer is a named, independently controllable sheet within the same drawing file, onto which different categories of drawing content (dimensions, outlines, hidden detail, etc.) are placed.
Easy
2. What does setting up a CAD drawing environment typically include, before construction begins?
Selecting appropriate drawing units, setting drawing limits/extents, and choosing an appropriate output scale
Only choosing a font for the title block text
Immediately drawing the object with no preparation steps
Selecting a random layer with no planning involved
Answer: Selecting appropriate drawing units, setting drawing limits/extents, and choosing an appropriate output scale — Setting up a CAD drawing environment includes selecting appropriate drawing units (e.g. mm or m), setting drawing limits/extents matched to the object and sheet size, and choosing an appropriate output scale.
Medium
3. Name the layer state that temporarily hides a layer and excludes it from calculations, useful for improving software performance on very complex drawings.
Answer: frozen — A frozen layer is temporarily hidden and excluded from calculations, useful for very complex drawings to improve software performance.
