Question

What is the representative factor of a line, whose length is 24cm on the drawing sheet, representing an actual length of 6m?

(a) 1:50

(b) 1:25

(c) 1:24

(d) 1:60

This question was addressed to me during an online interview.

I need to ask this question from Representative Factor in chapter Scales of Engineering Drawing

Answer 1

Right option is (b) 1:25

Easiest explanation: Representative factor is calculated as the ratio of the length of the drawing to the actual length of the object. Both the quantities should be taken in the same unit. In this example, R.F. equals to 24 ÷ (600) i.e. 1:25.