A line is a fine, solid line used to indicate the locations, length, width, or thickness of an object.

A line is a fine, solid line used to indicate the locations, length, width, or thickness of an object.

• A. Leader
• B. Dimension
• C. Center
• D. Hidden

Answer: (B)

The main idea here is understanding what a dimension line does on a drawing. A dimension line is used to show the size of a feature—its length, width, or thickness—and it indicates locations as well by tying the measurement to the edges with extension lines and arrowheads. The actual measurement is placed near or above the line. This is different from a leader line, which simply guides a note or label to a feature rather than conveying the size itself. Center lines indicate the axis or symmetry of a feature, and hidden lines depict edges not visible in the current view. So the line described is a dimension line because its purpose is to communicate the size and location measurements of the object.

The main idea here is understanding what a dimension line does on a drawing. A dimension line is used to show the size of a feature—its length, width, or thickness—and it indicates locations as well by tying the measurement to the edges with extension lines and arrowheads. The actual measurement is placed near or above the line. This is different from a leader line, which simply guides a note or label to a feature rather than conveying the size itself. Center lines indicate the axis or symmetry of a feature, and hidden lines depict edges not visible in the current view. So the line described is a dimension line because its purpose is to communicate the size and location measurements of the object.