Question

How many ways can we draw parallel lines to an existing line?

(a) 1

(b) 2

(c) 3

(d) 4

This question was posed to me in a job interview.

The doubt is from Construction of Parallel & Perpendicular Lines in chapter Geometrical Construction of Engineering Drawing

Answer 1

Right answer is (b) 2

To elaborate: There are two ways by which we can draw parallel lines to an existing line. The first method is when we have to draw parallel lines to a line through a given point. The other method is to draw parallel lines to a line through a given distance.