Which drawings are bigger or smaller than the real product but exactly in proportion with the product?

• A. Sketches
• B. Scale drawings
• C. Solid modelling
• D. Projection drawings

Answer: (B)

Scale drawings represent a real object at a different size while keeping every dimension in the same ratio. By using a scale factor—like 1:2 to shrink or 2:1 to enlarge—every measurement on the drawing is a fixed multiple of the true size. That means the drawing can be bigger or smaller than the real product, yet all parts stay in exact proportion to one another, so you can accurately infer real dimensions when you apply the scale. This is different from freehand sketches, which aren’t drawn to a consistent size or accurate proportions. Solid modelling is a digital 3D representation used to create and manipulate shapes, not a scaled drawing of the real object. Projection drawings show multiple views of an object, but the defining feature in this context is maintaining a true proportion through an explicit scale, which is what scale drawings provide.