Question

While dimensioning, what should always be written before a point accompanied by a figure if the value of the figure is less than unity?

(a) 1

(b) 0

(c) 2

(d) 6

I got this question during an interview for a job.

The doubt is from System of Dimensioning in section Lines, Lettering and Dimensioning of Engineering Drawing

Answer 1

Right answer is (b) 0

Easy explanation: For figures having a value less than one, dimensions should be written as 0.5 or 0.3 as per the value. There needs to be a zero in front of the point if it is less than 1. Sometimes zero is omitted but this practice should not be encouraged.