Baseline Dimensioning is also referred to as:

Baseline Dimensioning is also referred to as:

• A. Baseline Dimensioning
• B. Datum Dimensioning
• C. Alignment Dimension
• D. Reference Dimensioning

Answer: (B)

Baseline dimensioning uses a fixed reference line as the starting point for all measurements, and that fixed reference is treated as a datum. Because the baseline acts as the datum that defines how features are located, this approach is also called datum dimensioning. This naming reflects the use of a single, established reference to control how dimensions are applied and inspected. The other terms don’t fit since alignment isn’t a standard term for this method, and reference dimensions are typically informational rather than controlling the feature locations.

Baseline dimensioning uses a fixed reference line as the starting point for all measurements, and that fixed reference is treated as a datum. Because the baseline acts as the datum that defines how features are located, this approach is also called datum dimensioning. This naming reflects the use of a single, established reference to control how dimensions are applied and inspected. The other terms don’t fit since alignment isn’t a standard term for this method, and reference dimensions are typically informational rather than controlling the feature locations.