Which of the following best describes what a sectional drawing shows?

• A. A Perspective View of a Street
• B. Cutaway View of a Building
• C. Elevation of a Facade
• D. Plan View of a Roof

Answer: (B)

Sectional drawings show a cut through a building to reveal its interior. By slicing the structure, you can see how spaces relate to each other, where floors and stairs sit, how walls and structural elements line up, and how systems run through the spaces behind the exterior envelope. This is why a cutaway view of a building is the best description: it exposes inside details by presenting a vertical (or sometimes horizontal) cross-section, making the hidden interior visible.

In contrast, a perspective view focuses on the exterior form in 3D from a viewpoint, an elevation shows a flat facing side of the building, and a plan view shows a roof or floor layout from above—none of which depict the interior as a slice through the structure.