Question

If a plane is inclined with both the reference plane then the plane come under ____________

(a) auxiliary plane

(b) oblique plane

(c) perpendicular plane

(d) cross planes

I had been asked this question in semester exam.

The doubt is from Projection of Oblique Plane in section Projection of Planes of Engineering Drawing

Answer 1

Right choice is (b) oblique plane

The best I can explain: Sometimes every detail can’t be understood if the view falls on only reference planes so then auxiliary planes help in finding unknown measure there is no such rule it should incline to both references but oblique planes are inclined to both the reference planes.