Question

A point is 20 units away from the vertical plane and 12 units away from profile plane and 9 units away from horizontal plane in 1st quadrant then the projections are drawn on paper the distance between the side view and front view of point is ______________

(a) 29 units

(b) 21 units

(c) 32 units

(d) 11 units

I had been asked this question in unit test.

This intriguing question originated from Projection of Points in First Quadrant topic in division Projection of Points of Engineering Drawing

Answer 1

Correct choice is (c) 32 units

To elaborate: Since the point is 12 units away from the profile plane the distance from the point to reference line will be 12 units. And then the point is at a distance of 20 units from profile plane the distance from reference line and point will be 20 units, sum is 32.