Which term refers to the line that shows the visible edges of an object in a drawing?

Which term refers to the line that shows the visible edges of an object in a drawing?

• A. Object line
• B. Centerline
• C. Plot
• D. Framing

Answer: (A)

In technical drawings, different line styles communicate different things about the part. The line that traces the actual visible edges and outer contour of the object is an object line. It’s drawn as a continuous, solid line to clearly define the shape you’d see in a direct view. Centerlines use a long-dash–short-dash pattern to mark symmetry or center locations, not the visible edges. The other terms aren’t used to depict the object's edges in standard drawings. So the visible-edge line is the object line.