Fibres and Polymers

1

The material similar to silk in appearance is

  1. Nylon
  2. Rayon
  3. Polyester
  4. Terylene
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2

Which is a thermosetting plastic?

  1. Melamine
  2. Polythene
  3. PVC
  4. Nylon
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3

Polycot is obtained by mixing

  1. nylon and wool
  2. polyester and wool
  3. nylon and cotton
  4. polyester and cotton
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4

Which of the following is a source of rayon?

  1. Wool
  2. PET
  3. Wood pulp
  4. Silk
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5

Reeling of silk is

  1. a process of making silk reels.
  2. spinning of silk fibres.
  3. weaving of silk cloth.
  4. the process of taking silk threads from cocoon.
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6

Silkworms secrete fibre made of

  1. fat
  2. cellulose
  3. protein
  4. nylon
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7

Selective breeding is a process of

  1. selecting the offsprings with desired properties.
  2. selecting the parents with desired properties.
  3. selecting an area for breeding.
  4. selecting fine hair for good quality wool.
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8

Wool fibre cannot be obtained from which of the following?

  1. Goat
  2. Llama
  3. Alpaca
  4. Moth
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9

Silk fibre is obtained from

  1. fleece of sheep
  2. cotton ball
  3. cocoon
  4. shiny jute stalk
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10

Which of the following is not a type of silk?

  1. Mulberry silk
  2. Tassar silk
  3. Mooga silk
  4. Moth silk
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11

The rearing of silkworms for obtaining silk is called

  1. cocoon
  2. silk
  3. sericulture
  4. silviculture
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12

The correct sequence to get cloth is

  1. fibre → fabric → yarn
  2. fibre → yarn → fabric
  3. fabric → yarn → fibre
  4. yarn → fibre → fabric
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13

Yarn is woven to get fabric using

  1. charkha
  2. spinning machines
  3. looms
  4. knitting needles
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14

Which part of the jute plant is used for getting jute fibre?

  1. Flower
  2. Stem
  3. Fruit
  4. Leaf
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15

Which of the following is not a natural fibre?

  1. Cotton
  2. Jute
  3. Nylon
  4. Flax
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