Question

What is the difference between the section line and the centre line?

(a) The length of the long dashes

(b) The length of short dashes

(c) The width of the gap

(d) The two ends of the lines

I had been asked this question in class test.

The query is from Different Types of Lines in section Lines, Lettering and Dimensioning of Engineering Drawing

Answer 1

The correct choice is (d) The two ends of the lines

The explanation is: The ends of a section line are thickened so as to distinguish it from the centre line. The rest of the section line has the same thickness and dimensions as that of the centre line. The thickening of the ends in the section line is also used to denote the direction of viewing.