In a sectional view, which features are typically illustrated?

• A. Exterior contour only
• B. The interior features that are exposed by the cut
• C. Only hidden details
• D. Surface textures

Answer: (B)

A sectional view is about showing what’s inside a part by slicing through it. By removing one portion along a plane, you expose the interior geometry—holes, channels, cavities, walls, ribs, and how these features relate to each other across the cut. This is what the view communicates: the interior features that would be hidden in standard exterior views. Exterior contours are depicted in non-section views, and surface textures aren’t the main purpose of a sectional view (they’re shown with different conventions or notes). So the interior features exposed by the cut are what the sectional view highlights.