Question

A triangular pyramid is placed such that its axis is perpendicular to H.P and one of its base’s edges is parallel to H.P the front view and top view will be _________________

(a) Triangle of base, triangle due to slanting side

(b) Triangle due to slanting side, triangle of base

(c) Triangle of base, rhombus

(d) Rhombus, triangle of base

I had been asked this question during an online interview.

This intriguing question originated from Projection of Solids with Axis Inclined to Horizontal Plane and Parallel to Vertical Plane topic in portion Projection of Solids of Engineering Drawing

Answer 1

Correct answer is (b) Triangle due to slanting side, triangle of base

To explain: Given a triangular pyramid which means the projection to its base gives triangle of base and other orthographic views give triangle due to slanting sides. Here given is pyramid whose axis is perpendicular to H.P so its front view will be triangle due to sides and top view will be triangle of base.