Exercise (NCERT Text Book)
Q1: Classify the following fibres as natural or synthetic:
nylon, wool, cotton, silk, polyester, jute
Ans:
Natural : wool, cotton, silk, jute.
Synthetic : nylon, polyester.
Q2: State whether the following statements are true or false:
- Yarn is made from fibres.
- Spinning is a process of making fibres.
- Jute is the outer covering of coconut.
- The process of removing seed from cotton is called ginning.
- Weaving of yarn makes a piece of fabric.
- Silk fibre is obtained from the stem of a plant.
- Polyester is a natural fibre.
Ans:
- True
- False
- False
- True
- True
- False
- false
Q3: Fill in the blanks:
- Plant fibres are obtained from__ _______ and ________ .
- Animals fibres are __________ and ___________ .
Ans:
- Cotton, jute
- Wool, silk
Q4: From which parts of the plant cotton and jute are obtained?
Ans: Cotton is obtained from its seeds and jute is obtained from its stem.
Q5: Name two items that are made from coconut fibre.
Ans: Carpet and rope.
Q6: Explain the process of making yarn from fibres.
Ans: The process of making yarn from fibres is called spinning in which fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to form a yarn.