A broad, solid line outlining the object being viewed on a drawing is the ___ line.

A broad, solid line outlining the object being viewed on a drawing is the ___ line.

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

Answer: (A)

The line that shows the outer edges of what you’re viewing is the object line. It’s drawn as a continuous, heavy line to clearly define the visible boundary of the object in that view. This helps distinguish what is actually seen from other types of lines used in drawings, like centerlines (which indicate symmetry or axes and are dashed) or hidden lines (which are lighter or dashed to show edges not visible in the view). The other terms listed aren’t used to describe the visible contour of the part, so they don’t fit as well.

The line that shows the outer edges of what you’re viewing is the object line. It’s drawn as a continuous, heavy line to clearly define the visible boundary of the object in that view. This helps distinguish what is actually seen from other types of lines used in drawings, like centerlines (which indicate symmetry or axes and are dashed) or hidden lines (which are lighter or dashed to show edges not visible in the view). The other terms listed aren’t used to describe the visible contour of the part, so they don’t fit as well.