Types of Fibres Quiz - CBSE Class 7 Science

Free practice quiz: Types of Fibres (CBSE Class 7 Science). 15 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which of the following is a natural fibre?

   1. Nylon
   2. Polyester
   3. Cotton
   4. Acrylic
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   Answer: C. Cotton

   Cotton is a natural fibre obtained from the cotton plant, unlike Nylon, Polyester, and Acrylic, which are synthetic fibres.

2. What part of the jute plant is jute fibre obtained from?

   1. Roots
   2. Leaves
   3. Bark
   4. Stems
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   Answer: D. Stems

   Jute fibre is primarily extracted from the stems of the jute plant.

3. Which fibre is made by processing wood pulp into fibres?

   1. Rayon
   2. Nylon
   3. Cotton
   4. Linen
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   Answer: A. Rayon

   Rayon is a semi-synthetic fibre made from regenerated cellulose, derived mainly from wood pulp.

4. Which fibre is known for its low flammability relative to others?

   1. Wool
   2. Silk
   3. Cotton
   4. Acrylic
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   Answer: A. Wool

   Wool has a high ignition temperature and is self-extinguishing, making it relatively fire-resistant compared to other fibres.

5. Which fibre is hygroscopic but retains warmth when wet?

   1. Silk
   2. Wool
   3. Nylon
   4. Polyester
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   Answer: B. Wool

   Wool is hygroscopic, meaning it can absorb moisture, but it still retains warmth when wet, unlike many other fibres.

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