Question

From the fbelow figure, what is the name of the line X?

(a) Outline

(b) Section line

(c) Hidden line

(d) Hatching

This question was posed to me in an interview.

I'm obligated to ask this question of Different Types of Lines in division Lines, Lettering and Dimensioning of Engineering Drawing

Answer 1

The correct answer is (c) Hidden line

For explanation I would say: Hidden lines are dashed lines with dashes equaling 2mm and the gap 1mm. These lines depict that there is a hole or slot i.e. no solid part is present there. Section line are long chain thin lines with thick ends.