Question

Pictorial drawings, used to communicate the structure of objects to others are called

• A. Multiple plane drawings
• B. Three plane drawings
• C. Two plane drawings
• D. One plane drawings

Hint:

Remember that orthographic projection uses multiple planes to construct a set of flat 2D views, whereas pictorial projection uses only one plane to represent all three dimensions at once.

Answer 1

The Correct Option is D

Step 1: Understanding Pictorial Drawings:
Pictorial drawings represent a 3-dimensional object on a 2-dimensional surface (such as a sheet of paper or a screen) in a single view. This allows the viewer to immediately understand the object's depth, width, and height simultaneously, approximating its realistic appearance.

Step 2: Comparing Projection Methods:
In multiview orthographic projections, the object is projected onto several mutually perpendicular planes (such as the Horizontal Plane, Vertical Plane, and Profile Plane), which results in multiple separate 2D views (multiple plane drawings, two-plane drawings, or three-plane drawings).

Step 3: Determining the Plane Count for Pictorial Views:
Because pictorial views (such as isometric, oblique, or perspective projections) present all three dimensions of the object in a single composite view projected onto a single plane of projection, they are technically classified as One plane drawings. Thus, option (D) is correct.