Which type of view shows the internal construction of each assembly?

• A. Elevation
• B. Isometric
• C. Sectional
• D. Perspective

Answer: (C)

To reveal how an assembly is put together, you use a sectional view. This kind of view is created by slicing through the object with a cutting plane and removing one portion, which exposes the interior features—hidden cavities, channels, fasteners, mating surfaces, and how parts stack or fit together. This makes it possible to see details that aren’t visible from the outside and to verify clearances, dimensions, and assembly relationships.

Elevation shows only the exterior faces, isometric presents a 3D overall form without cutting through to reveal interior details, and perspective renders a scene with depth but doesn’t provide true interior construction. Sectional views often show the cut surfaces with hatch marks to indicate material, clarifying how the components are actually constructed.