Question

In orthographic projection an object is represented by two or three views on different planes which _________________

(a) gives views from different angles from different directions

(b) are mutually perpendicular projection planes

(c) are parallel along one direction but at different cross-section

(d) are obtained by taking prints from 2 or 3 sides of object

I have been asked this question by my school teacher while I was bunking the class.

This question is from Basics of Orthographic Projections topic in division Loci of Points & Orthographic Projections of Engineering Drawing

Answer 1

Correct answer is (b) are mutually perpendicular projection planes

To explain: By viewing in mutual perpendicular planes- Vertical plane, horizontal plane, profile plane which indirectly gives us front view in x-direction, top-view in y –direction and thickness in z-direction which are mutually perpendicular. Ortho means perpendicular.