A cross-section reveals what information about a building component?

• A. The exterior color of the surface
• B. The site location
• C. Interior features along the cut plane
• D. The material supplier

Answer: (C)

A cross-section shows what lies inside the component along the cut plane. It reveals interior features such as framing members, insulation, layers, joints, and how finishes meet—everything hidden within the assembly, so you can understand thickness, relationships, and how the parts are actually put together. Exterior color is a surface appearance not shown in a cut view, site location relates to the building’s plot and surroundings rather than the component’s interior, and the material supplier is a procurement detail, not something depicted by a cut-through drawing.