Which line is used to represent the visible edges of an object on a technical drawing?

Which line is used to represent the visible edges of an object on a technical drawing?

• A. Center Line
• B. Construction Line
• C. Object Line
• D. Hidden Line

Answer: (C)

In technical drawings, the lines that show the actual visible edges of the object are the object lines. These are solid, continuous lines that define the outer silhouette and any edges you can see from the chosen view, making the shape of the part clear and unambiguous. Center lines indicate axes of symmetry or rotation and appear as alternating long and short dashes. Construction lines are light guidelines used during drafting to help place features and are usually erased in the final drawing. Hidden lines depict edges not visible from the view and are drawn as dashes. Because only the visible boundaries should be shown as solid, continuous lines in the final representation, the object line is the correct choice for depicting visible edges.

In technical drawings, the lines that show the actual visible edges of the object are the object lines. These are solid, continuous lines that define the outer silhouette and any edges you can see from the chosen view, making the shape of the part clear and unambiguous. Center lines indicate axes of symmetry or rotation and appear as alternating long and short dashes. Construction lines are light guidelines used during drafting to help place features and are usually erased in the final drawing. Hidden lines depict edges not visible from the view and are drawn as dashes. Because only the visible boundaries should be shown as solid, continuous lines in the final representation, the object line is the correct choice for depicting visible edges.