Question

Which is the wrong statement from the below options?

(a) As far as possible all dimensions should be given in millimeters, omitting the abbreviation mm

(b) The height of the dimension figures should be from 3mm to 5mm

(c) A zero must always precede the decimal point when the dimension is less than unity

(d) The dimensions should only be given in mm

I have been asked this question by my college professor while I was bunking the class.

The origin of the question is Types of Dimensioning in division Lines, Lettering and Dimensioning of Engineering Drawing

Answer 1

The correct answer is (d) The dimensions should only be given in mm

Easy explanation: There is no need to give the dimensions only in mm. Some of the drawings may be very large in size it is not convenient to give dimensions in millimeters and another unit is used but only one dimension should be used among the whole drawing.