Multiview drawings: Multiview projection presents one or more necessary orthographic views of an object to fully communicate its shape and size.

Introduction / Context:
Multiview drawings are the bedrock of mechanical and architectural documentation. Rather than pictorial illusions, they provide exact, measurable views aligned to orthographic projection.

Given Data / Assumptions:

• A view is “necessary” if it adds unique information (e.g., features not seen or dimensioned elsewhere).
• Common sets include front, top, and right-side; additional views are added as needed.
• Orthographic projection keeps parallel lines parallel and preserves true size for dimensions aligned with the projection planes.

Concept / Approach:
Engineering communication aims for sufficiency, not redundancy. Selecting the minimal set of views that fully defines geometry prevents clutter while ensuring unambiguous manufacture.

Step-by-Step Solution:
Choose the principal view showing the object most clearly.Add secondary views to reveal hidden geometry or critical dimensions.Include auxiliary or sectional views if necessary for inclined or interior features.Hence multiview projection indeed shows one or more necessary views.

Verification / Alternative check:
Compare a complex part drawn with too few views (ambiguous) versus with sufficient views (fully defined). Standards recommend adding only views that contribute information.

Why Other Options Are Wrong:
“Incorrect” ignores core drafting practice. Limiting to third-angle or to reduced scales is unfounded; the principle holds for both first- and third-angle and at any scale.

Common Pitfalls:
Providing too many redundant views; failing to include an auxiliary view for inclined surfaces, leading to distorted dimensions.

Final Answer:
Correct