Which one of the following polymeric materials is used for making bullet proof jacket?

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Q: 105 (CDS-II/2009)
Which one of the following polymeric materials is used for making bullet proof jacket?

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,32,32,19,10,32,3

keywords: 

{'polymeric materials': [0, 0, 1, 0], 'nylon': [0, 0, 0, 2], 'bullet proof jacket': [0, 0, 1, 0], 'rayon': [1, 0, 0, 0], 'kevlar': [0, 0, 1, 0], 'dacron': [0, 0, 1, 0]}

The correct answer is option 3: KEVLAR. Kevlar is a polymeric material that is commonly used for making bulletproof jackets. Kevlar is a high-strength synthetic fiber that is lightweight and known for its exceptional strength and resistance to impact. It is made from poly-paraphenylene terephthalamide, a type of aromatic polyamide.

Nylon 6,6 (option 1) is a strong and durable synthetic polymer, but it is not typically used for making bulletproof jackets. It is commonly used in textiles, ropes, and engineering plastics.

Rayon (option 2) is a semi-synthetic fiber made from natural cellulose, but it does not possess the necessary strength and ballistic resistance for making bulletproof jackets.

Dacron (option 4) is a brand name for polyester, which is a synthetic polymer. While polyester has some strength and durability, it is not commonly used for making bulletproof jackets.

Therefore, the correct answer is option 3: KEVLAR, as it is specifically designed and widely used for its high strength and ballistic resistance, making it suitable for bulletproof jackets.