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

Which one of the following polymeric materials used for making bullet proof jacket? Correct Answer Kevlar

The correct answer is option(3) i.e. Kevlar.

  • Kevlar is used for making a bulletproof jacket.
  • Polymeric material:
    • It is a large molecule or macromolecule composed of millions of repeated linked units, each a relatively light and simple molecule.
  • Polymeric Materials journal deals with the subject areas of Material Science and Organic Chemistry. 
    •  The polymer is a substance made up of a large number of smaller molecules that link together to form larger molecules. 
    • Example of Polymeric material- An example of a synthetic polymer is plastic. An example of a natural polymer is rubber.  
    • Nylon6.6 is a synthetic polymer called a polyamide because of the characteristic monomers of amides in the backbone chain.
    • Two different molecules (adipic acid and hexamethylenediamine) are combined to create repeat units of 6 carbon atoms, thus the name nylon 6.6.  

Related Questions

In the following question below are given three statements followed by four conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. 0% Jacket is Black. II. 100% Black are Blanket. III. 30% Blanket are Cotton. Conclusions: I. No Blanket is a Jacket. II. Some Black are Cotton. III. Some Cotton are Jacket. IV. Some Jacket are Blanket.
Which one of the following is used in making 'Bullet proof Jacket'?
In the following question below are given three statements followed by three conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some Balloon are Red. II. Some Red are Jacket. III. All Jacket are Cap. Conclusions: I. Some Cap are Red. II. No Balloon is Jacket. III. No Cap is Balloon.
Descartes gives
1. causal proof.
2. cosmological proof.
3. non-causal proof.
4. non-cosmological proof.
Select the correct answer:
The radius of base of a solid cylinder is 7 cm and its height is 21 cm. It is melted and converted into small bullets. Each bullet is of same size. Each bullet consisted of two parts viz. a cylinder and a hemisphere on one of its base. The total height of bullet is 3.5 cm and radius of base is 2.1 cm. Approximately how many complete bullets can be obtained?
A sphere of diameter 42 cm is melted and bullets are formed from it. The bullet has circular cylindrical shape from one side and conical from other side. The radius of the base of the cylindrical part of the bullet is 6 cm and the cylindrical part has thrice as much length as the conical part. Find how many such bullets can be formed if the curved surface area of the cylindrical part of a bullet is 79.2 cm2.
Which of the following has developed a lightweight bullet-proof jacket that weighs nine kg and meets the qualitative requirements of the Indian Army?
Who among the following has received the “Army Design Bureau Excellence Award” for indigenously developing the bullet-proof jacket named ‘Sarvatra Kawach’? (Dec 2019)
Shaad lives in Lucknow. He wants to go Aminabaad for shopping from Chowk. He uses his Bullet for the same. The Bullet runs at the rate of 60 kmph and reaches Aminabaad 20 minutes earlier of schedule. After shopping, when he was returning back to Chowk, his Bullet runs at an average speed of 20 kmph, he reaches 30 minutes late. What is the distance between Aminabaad and Chowk ?
Statement I When a gun is fired, i.e. it placing pushes back with much less velocity than the velocity of the bullet.
Statement II Velocity of the recoiling gun is less because the gun is much heavier than bullet.
According to the Principle of conservation of momentum when the gun is fired, momentum of gun and bullet system remains constant.