Question

Which is the instrument used to draw parallel lines fast?

(a) Set square

(b) Ruler scale

(c) Protractor

(d) Roll-n-draw

This question was posed to me by my school teacher while I was bunking the class.

Question is from Drawing Tools and their Uses topic in section Drawing Instruments, Sheet Layout & Free-Hand Sketching of Engineering Drawing

Answer 1

Correct answer is (d) Roll-n-draw

The explanation is: Using roll-n-draw scales, we can draw parallel lines very accurately and fast. They are used to draw parallel lines in the horizontal direction, vertical direction and also in inclined planes. The general dimension of the roll-n-draw scale is 30 cm and 15 cm. The scale is rolled on the paper to achieve parallel lines.