Detail drawings are usually marked on which view?

• A. Plan view
• B. Elevation view
• C. Section view
• D. Isometric view

Answer: (A)

Detail drawings are set up to clearly magnify and specify a small, important portion of the part, and the marker that points to this magnified view is placed on the view that presents the feature most clearly. For sheet metal parts, that clear presentation is the plan (top) view, which shows the flat layout and the precise positions of holes, cuts, bends, and edges in a single, unambiguous plane. Marking the detail on the plan view keeps the association between the feature and its enlarged drawing straightforward, and it makes dimensions and annotations easier to read and translate to fabrication. Elevation, section, or isometric views can illustrate the feature, but they are not as ideal for locating and detailing the feature with a magnified view.