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Synthetic Fibres and Plastic

Synthetic Fibers and Plastic

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is used for making electrical switches and plugs because it does not become soft on heating?

  1. Teflon
  2. Polythene
  3. PVC
  4. Bakelite
  5. Nylon
Question 2 Multiple Choice (Single Answer)

Which of the following is also called an artificial silk?

  1. Acrylic
  2. Rayon
  3. Terylene
  4. Nylon
  5. Terrycot
Question 3 Multiple Choice (Single Answer)

Which of the following is a man-made fibre made from a natural material called cellulose?

  1. Nylon
  2. Rayon
  3. Polyester
  4. Acrylic
  5. Silk
Question 4 Multiple Choice (Single Answer)

Which of the following statements is/are false?
a. A polymer is a very big molecule formed by the combination of a large number of smaller molecules.
b. Flax and jute are animal fibres.
c. Wool and cotton are natural polymers.

  1. Only a
  2. Only a and b
  3. Only b
  4. b and c
  5. Only c
Question 5 Multiple Choice (Single Answer)

Which of the following is/are the uses of rayon?

a. Rayon is used in the textile industries to make clothings like sarees, dresses, etc.
b. Rayon is use in the medical field for making dressings and bandages.
c. Rayon is used in the tyre industry for manufacturing tyre cord.

  1. Only a
  2. Only a and b
  3. Only c
  4. Only b and c
  5. All of these
Question 6 Multiple Choice (Single Answer)

Which of the following is not a property of a nylon fibre?

  1. Nylon fibre absorbs very little water.
  2. A nylon fibre is stronger than a polyester fibre.
  3. A nylon fibre is wrinkle resistant.
  4. Nylon fibers have high abrasion resistance.
  5. Nylon fibre is not attacked by moth and ordinary chemicals.
Question 7 Multiple Choice (Single Answer)

Which of the following is not a property of plastic?

  1. Plastics are poor conductors of heat and electricity.
  2. Plastics can be moulded into different shapes.
  3. Plastics are quite cheap and easily made.
  4. Plastics are chemically reactive.
  5. Plastics are strong, light and durable.
Question 8 Multiple Choice (Single Answer)

Which of the following man made fibre is chemically identical to cotton?

  1. Nylon
  2. Acrylic
  3. Terrycot
  4. Rayon
  5. Terylene
Question 9 Multiple Choice (Single Answer)

Which of the following is/are the uses of polyester fibre?
a. Polyester is used for making sails of sail-boats.
b. Polyester is used for making water hoses for fire fighting operations.
c. It is used for making conveyer belts.

  1. Only a
  2. Only a and b
  3. Only c
  4. b and c
  5. a, b and c
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?
a. Polyester is a thermoplastic polymer.
b. Polycot is a mixture of polyester and wool.
c. A synthetic fibre is a polymer made from the molecules of a monomer or two monomers joined together to form very long chains.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 11 Multiple Choice (Single Answer)

Which of the following is not a property of synthetic fibres?

  1. Synthetic fibres are very strong.
  2. Synthetic fibres are more durable.
  3. Synthetic fibres are wrinkle resistant.
  4. Synthetic fibres are very light in weight.
  5. Synthetic fibres are good absorbers of water.
Question 12 Multiple Choice (Single Answer)

Which of the following synthetic fibres is not prepared from raw materials obtained from petrochemicals?

  1. Nylon
  2. Rayon
  3. Acrylic
  4. Terylene
  5. Terrywool
Question 13 Multiple Choice (Single Answer)

What type of clothes can melt and stick to the body on heating?

  1. Cotton
  2. Nylon
  3. Jute
  4. Wool
  5. Flax
Question 14 Multiple Choice (Single Answer)

Match the following
a. Cellulose 1. It is a substance produced by plants and animals that can be spun into a filament, thread or rope.
b. Natural fiber 2. It is a man-made fibre produced from chemical substances.
c. Synthetic fiber 3. It is a polymer, which is made up of a large number small glucose molecules joined one after the other.
  1. a - 3, b - 1, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 1, b - 3, c - 2
  4. a - 1, b - 2, c - 3
  5. a - 2, b - 1, c - 3
Question 15 Multiple Choice (Single Answer)

Which of the following sequence of fibres is correct regarding the increasing order of their strength?

  1. Wool, Silk, Nylon, Cotton, Polyester
  2. Nylon, Wool, Cotton, Silk, Polyester
  3. Polyester, Wool, Cotton, Silk, Nylon
  4. Wool, Silk, Nylon, Polyester, Cotton
  5. Wool, Cotton, Silk, Nylon, Polyester
Question 16 Multiple Choice (Single Answer)

Which of the following is not a bio-degradable waste?

  1. Glass
  2. Paper
  3. Cotton cloth
  4. Wood
  5. Woolen clothes
Question 17 Multiple Choice (Single Answer)

Which of the following is used to give non-sticking coating on cookwares?

  1. Melamine
  2. Bakelite
  3. Teflon
  4. PVC
  5. Polythene
Question 18 Multiple Choice (Single Answer)

Match the following
a. Polyester 1. It is a high-strength, resilient synthetic polymer, the molecules of which contain the recurring amide group.
b. Rayon 2.It is a synthetic fibre in which the polymer units are linked by the ester groups.
c. Nylon 3.It is a man-made fibre prepared from a natural raw material called cellulose by chemical treatment.
  1. a - 3, b - 2, c - 1
  2. a - 2, b - 1, c - 3
  3. a - 2, b - 3, c - 1
  4. a - 3, b - 1, c - 2
  5. a - 1, b - 3, c - 2
Question 19 Multiple Choice (Single Answer)

Which of the following are thermosetting plastics?
a. Teflon
b. Bakelite
c. PVC
d. Melamine

  1. Only b and d
  2. Only a and c
  3. Only a and b
  4. Only c and d
  5. Only a and d
Question 20 Multiple Choice (Single Answer)

In which of the following polymers, long polymer chains are not cross-linked with one-another?

  1. Nylon
  2. Polythene
  3. Teflon
  4. Melamine
  5. Bakelite
Question 21 Multiple Choice (Single Answer)

Match the following 'synthetic fibres' with the 'chemicals from which they are made'
a. Acrylic 1. Ester
b. Polyester 2. Amide
c. Nylon 3. Acrylonitrile
  1. a - 3, b - 1, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 2, b - 1, c - 3
  4. a - 2, b - 3, c - 1
  5. a - 1, b - 3, c - 2
Question 22 Multiple Choice (Single Answer)

Which of the following synthetic material can be used to make shatterproof bottles as well as fabric?

  1. Polyester
  2. Rayon
  3. Nylon
  4. Acrylic
  5. Terylene
Question 23 Multiple Choice (Single Answer)

In which of the following polymers, long polymer chains are cross-linked with one-another?

  1. Nylon
  2. Polythene
  3. PVC
  4. Teflon
  5. Melamine
Question 24 Multiple Choice (Single Answer)

Which of the following are thermoplastics?
A. Polythene
B. Bakelite
C. PVC
D. Malamine

  1. Only A and B
  2. Only B and C
  3. Only A and C
  4. Only C and D
  5. Only B and D
Question 25 Multiple Choice (Single Answer)

Which of the following is used to coat the uniforms of fire-men to make the uniforms fire-resistant?

  1. Polythene
  2. Polyvinyl chloride
  3. Bakelite
  4. Teflon
  5. Melamine
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