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Design
Quick questions on Graphic techniques and modelling - SQA Higher Design and Manufacture
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is freehand sketching?Show answer
Quick, loose drawings made by hand. Sketching is fast and needs no equipment, so it suits the idea-generation stage where the designer wants many options on paper quickly. Annotated sketches (notes added to a drawing) also record thinking and explain how an idea works.
What are pictorial drawings?Show answer
Three-dimensional views that show what a product looks like. Isometric drawings keep vertical edges vertical and project the others at 30 degrees, giving a clear, measurable 3D view; perspective drawings use vanishing points for a realistic look. Pictorial views are used to communicate the form to clients and users.
What are orthographic working drawings?Show answer
Flat, dimensioned views (typically front, plan and end elevations) drawn to a standard and used to manufacture the product. They carry the exact sizes, tolerances and details a maker needs, so they remove ambiguity that a pictorial sketch leaves.
What is computer-aided design?Show answer
Software that builds an accurate digital 3D model. CAD is used heavily in development: the model is easy to edit, can be rendered into realistic images, can be analysed (for strength or fit), can generate working drawings automatically, and can drive CAM machines directly. CAD files are shared instantly with clients and manufacturers.
What is q1?Show answer
Explain why freehand sketching is suited to the idea-generation stage. [3 marks]
What is q2?Show answer
Explain the difference between a pictorial drawing and an orthographic working drawing, and when each is used. [4 marks]
What is q3?Show answer
Explain two advantages of building a CAD model during development. [4 marks]
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