Drawing pencils are graded according to increase in relative

drawing-pencils-are-graded-according-to-increase-in-relative

Drawing pencils are graded according to increase in relative __________

A. diameter

B. sharpness

C. length

D. hardness

The question was posed to me in an interview.

My question comes from Different Types of Lines in division Lines, Lettering and Dimensioning of Engineering Drawing

Right answer is D. hardness

The best I can explain: Drawing pencils are graded according to the increase in relative hardness. They are marketed with the labeled as H, 2H, 3H, 4H, 5H, 6H etc. These grades are used for getting accurate, clean and neat drawings.