Question

Which are not usually used as angle between the projection plane and receding lines for oblique projection?

(a) 30 degrees

(b) 50 degrees

(c) 45 degrees

(d) 60 degrees

I had been asked this question by my college director while I was bunking the class.

The question is from Oblique Projections topic in section Oblique & Perspective Projection of Engineering Drawing

Answer 1

Correct choice is (b) 50 degrees

For explanation I would say: Usually used as angles are 30, 45, 60 degrees which are between the projection plane and receding lines for oblique projection. But if needed any angle can be taken as per requirement of the view.