Question

A square of side 10 cm is held parallel to vertical plane and one diagonal is making 45 degrees with xy reference plane. The length of line in top view will be ________

(a) 10 cm

(b) 14.14 cm

(c) 7.07 cm

(d) 0 cm

This question was posed to me in an interview for job.

I would like to ask this question from Projection of Planes Parallel to one of the Reference Plane topic in chapter Projection of Planes of Engineering Drawing

Answer 1

Correct choice is (a) 10 cm

Easiest explanation: Given the square is parallel to vertical plane ad diagonal is making 45 degrees with xy reference plane the top view and side gives a line and both of same length which is equal to length of side of square because in square angle between the diagonal and side is 45 degrees.