Which section removes one quarter of the object? In conventional mechanical drafting terminology, which section type is defined by removing one quarter of the object so that one half of the view is sectioned and the other half remains as an exterior view?

Introduction / Context:
Section types are named for how the imaginary cut is applied and how much of the object is conceptually removed. This affects what the final composite view looks like on the paper or screen.

Given Data / Assumptions:

• We are using standard mechanical drawing terminology.
• The goal is to show inside and outside features in a single view.
• The object is suitable for symmetric sectioning.

Concept / Approach:
A half section is created by passing a Cutting Plane along the centerline and imagining that one quarter of the object is removed. The resulting view displays one half in section (hatched) and the other half as an external elevation, maximizing information density with minimal views.

Step-by-Step Solution:
Lay the Cutting Plane along the symmetry plane.Conceptually remove one quarter of the object.Depict the remaining half: one side hatched (interior), the other side unhatched (exterior).Dimension from the centerline as needed; avoid hatching conventions violations.

Verification / Alternative check:
Textbook definitions explicitly state that “in a half section one quarter of the object is removed,” confirming the terminology linkage between the removal fraction and the final composite view.

Why Other Options Are Wrong:

• Revolved section: shows a cross-section rotated into the view, typically for shafts.
• Removed section: section taken and placed elsewhere on the sheet.
• Quarter section: not standard terminology in mainstream standards.

Common Pitfalls:
Hatching through holes or fasteners that should remain unsectioned, or forgetting the centerline in the final half-section view.

Final Answer:
Half section