BPSC – Combined Competitive Examination · Question 11
What is the fibre used to make bulletproof jackets?
Show answer & explanation
Answer: (D) Kevlar
Explanation
Kevlar (DuPont) is a para-aramid fibre about five times stronger than steel by weight.
- (A) Incorrect
Wrong: not strong enough to stop bullets.
- (B) Incorrect
Wrong: a polyester for clothing.
- (C) Incorrect
Wrong: a woollen fabric.
- (D) Correct
Correct: Kevlar, an aramid fibre, has very high tensile strength.