Which statement correctly describes isometric drawings?

• A. To show plans from a top-down perspective
• B. To illustrate electrical wiring
• C. To represent three-dimensional objects in two dimensions
• D. To show sectional views

Answer: (C)

Isometric drawings show three-dimensional objects in two dimensions by using three axes that are equally foreshortened. This keeps measurements along all three directions consistent, so you can read size and shape without perspective distortion. That's why this statement best describes isometric drawings: they represent three-dimensional objects in two dimensions. A top-down plan is a plan view from above, not an isometric representation; illustrating electrical wiring is a wiring diagram; showing sectional views depicts a cut-through to reveal interior features. In an isometric drawing, the three axes are usually drawn at 120-degree angles, with edges parallel to each axis staying parallel, giving a clear 3D feel in a single view.