Which type of drawing is primarily used to show "inside" details of an object?

The correct choice focuses on the purpose of a section view drawing, which is designed to reveal the internal features and details of an object that are not visible from the exterior. This type of drawing helps engineers and designers understand the internal relationships and configurations of components, which is crucial for analysis, manufacturing, and assembly purposes.

A section view typically involves cutting through the object along an imaginary plane, allowing the viewer to see what the internal structure looks like. This is particularly useful in complex assemblies where the arrangement and interaction of parts need to be made clear. By utilizing section views, important aspects like dimensions, material properties, and relationships between different components can be conveyed effectively.

In contrast, while both half sections and full sections also provide insight into internal details, they are specialized forms of section views that focus on specific aspects of a cut or sliced object. A part drawing usually emphasizes individual components rather than focusing on how those components relate to each other within an assembly. Thus, the broader term "section view" encompasses various methods, including half and full sections, but specifically targets the need for highlighting internal details.