Question

A sphere is cut by plane which is perpendicular to V.P and inclined to H.P the top view and section will be ___________

(a) line, circle

(b) line, ellipse

(c) ellipse, circle

(d) circle, ellipse

This question was addressed to me in a national level competition.

This intriguing question comes from Sections of Spheres in section Section of Solids of Engineering Drawing

Answer 1

The correct choice is (c) ellipse, circle

To explain I would say: When a sphere is cut by a plane, the true shape of the section is always a circle. But here asked are views so it will be lines or ellipse according to section plane however the section plane will lay section will be circle.