Question

A pentagon is placed perpendicular to horizontal plane and inclined to profile plane which of the following is true.

(a) Front view-line, top view- pentagon

(b) Front view- pentagon, top view- line

(c) Front view –line, top view-line

(d) Top view-line, side view- line

This question was addressed to me at a job interview.

My doubt stems from Projection of Planes Inclined to one of the Reference Plane & Perpendicular to other topic in section Projection of Planes of Engineering Drawing

Answer 1

Right answer is (b) Front view- pentagon, top view- line

Easiest explanation: When a plane is perpendicular to one of the reference planes and inclined to the other, its inclination is shown by an angle which its projection on the plane to which it is perpendicular, makes with xy. Its projection on the plane to which it is inclined is smaller than the plane itself.