Question

A rectangular plate of sides 60 x 30 cm has its shorter side in the V.P, inclined to 60 degrees with V.P and 30 degrees with the H.P. The front view while drawing projections in 1, 2 and 3 are ______  ________ and ________ respectively.

(a) line, line, parallelogram

(b) line, parallelogram, line

(c) rectangle, square, square

(d) rectangle, square, parallelogram

I had been asked this question by my school principal while I was bunking the class.

I'm obligated to ask this question of Projection of Oblique Plane topic in portion Projection of Planes of Engineering Drawing

Answer 1

Correct option is (c) rectangle, square, square

To elaborate: As initially the plane is assumed to be parallel to V.P the front view will be rectangle and then the plane is tilted with respect to V.P to 60 degrees angle the top view will be rectangle compressed to square (60 x cos (60)= 30). Finally the plane is tilted with respect to H.P then square will just turn w.r.t H.P.