Question

When two spheres of different radius are placed on H.P both are touching each other and the line joining the centers is perpendicular to V.P. The top view will be ______________

(a) single circle

(b) two circles

(c) concentric circles

(d) intersecting circles

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

I need to ask this question from Projection of Spheres topic in section Projection of Solids of Engineering Drawing

Answer 1

Correct choice is (b) two circles

For explanation: Given two spheres of different radius are placed on H.P touching each other, the line joining the centers is perpendicular to V.P so they both align in one line which gives two circles with different radius from top view.