Which sketch represents an object with true width and height, while the depth can be any size and drawn at any angle?

Which sketch represents an object with true width and height, while the depth can be any size and drawn at any angle?

• A. A form of pictorial in which an object is represented as true width and height, but the depth can be any size and drawn at any angle.
• B. A sketch where all axes are perpendicular to the projection plane.
• C. A perspective drawing with vanishing points.
• D. A sketch drawn strictly to scale on orthographic planes.

Answer: (A)

In oblique pictorial drawings, the front face is shown in true width and height, while the depth is drawn at an angle and can be any length. This preserves the exact size of what you see head-on, making the front features easy to read, while the depth provides a sense of volume without forcing all dimensions to match the front view. The depth line is drawn at a fixed angle relative to the front, but its length isn’t constrained to match the front—so you can vary how deep the object appears. This contrasts with orthographic sketches, which project views so that each dimension is true on its own plane; perspective drawings, which use vanishing points to create depth that foreshortens; and strictly to-scale orthographic drawings, which don’t present a single view with an undistorted front face.

In oblique pictorial drawings, the front face is shown in true width and height, while the depth is drawn at an angle and can be any length. This preserves the exact size of what you see head-on, making the front features easy to read, while the depth provides a sense of volume without forcing all dimensions to match the front view. The depth line is drawn at a fixed angle relative to the front, but its length isn’t constrained to match the front—so you can vary how deep the object appears. This contrasts with orthographic sketches, which project views so that each dimension is true on its own plane; perspective drawings, which use vanishing points to create depth that foreshortens; and strictly to-scale orthographic drawings, which don’t present a single view with an undistorted front face.