Which drawing technique provides multiple views to describe a part's geometry?

• A. Orthographic projection
• B. Perspective drawing
• C. Isometric drawing
• D. Oblique drawing

Answer: (A)

Showing a part from multiple views without perspective distortion is what orthographic projection does. It projects the object's features onto perpendicular planes to create front, top, and side views. Each view presents true size and shape for features parallel to that plane, and together they provide a complete, unambiguous description of the geometry that can be used for precise dimensions and manufacturing.

Perspective drawing adds depth with a vanishing point, which distorts true sizes. Isometric drawing shows three faces in one view but doesn’t provide separate true-size views for all directions, and oblique drawing emphasizes depth on a single view rather than multiple orthogonal views. So the method that yields multiple views to accurately describe a part’s geometry is orthographic projection.