If a welding drawing is scaled to 1/8 inch = 1 foot, what kind of ruler would you use for measuring?

• A. Engineering scale
• B. Architectural scale
• C. Ruler scale
• D. Metric scale

Answer: (B)

When a drawing is scaled so that 1/8 inch on the sheet equals 1 foot in real life, you read it with an architectural scale. Architectural rulers are built with edges labeled for scales like 1/8" = 1'-0", 1/4" = 1'-0", and so on, specifically designed for feet-and-inches drawings. Using that edge lets measurements on the paper convert directly to actual sizes. For example, 1 inch on the drawing would correspond to 8 feet in real size.

This scale is typical for building-related drawings, which is why an architectural scale is the right choice here. Metric scales would map to meters, and the term "ruler scale" isn’t a standard designation, while engineering scales use different conventions more common in technical or mechanical drawings.