Which dimensioning mistake is associated with shading in views?

• A. Shading in isometric or orthographic views
• B. Not shading at all
• C. Using color shading
• D. Shading only in 3D views

Answer: (A)

In engineering drawings, dimensions must be read from clean, unshaded views that show true geometry. Shading in isometric or orthographic views introduces depth cues that can obscure or distort the actual size and location of features, making the dimension lines, extension lines, and leaders harder to read accurately. Because dimensioning relies on precise, unambiguous representation, shading these views is a mistake. Not shading at all is acceptable and common practice. Color shading or shading only in 3D views isn’t standard for dimensioning either, since it can confuse interpretation of measurements; shading is better reserved for presentation or product rendering rather than the views used to specify dimensions.