Which statement about ARE measurement units is accurate?

• A. Metric units only.
• B. There are no standard units.
• C. Both metric and inch-pound.
• D. Inch-pound units only.

Answer: (D)

In ARE practice, the standard measurement system used for drawings, specifications, and quantities is inch-pound. This means lengths are given in inches (with feet as needed), areas in square feet, and weights or loads in pounds. Metric units exist in many contexts, especially internationally, but they are not the standard for ARE questions in the U.S. Therefore, saying inch-pound units are the standard is the accurate choice. The other options imply either no standard, or that metric is also standard, which isn’t the case in this context. If you work on international projects, you may encounter metric, but for ARE and typical US practice, inch-pound is the primary standard.