Answer the following questions :
1. What are the types of fibres?
Ans: There are two types of fibres Natural Fibres and Synthetic Fibres.
2. What are fabrics made of?
Ans: Fabrics are made up of yarns and yarns are further made up of fibres.
3. What are the different ways natural fibres are obtained? Mention with examples.
|Types of Fibre||Examples|
|i. Plant Fibre||Eg. Cotton, Jute|
|ii. Animal Fibre||Eg. Silk, Wool|
4. How are synthetic fibres made of?
Ans: Fibres made from chemical substances such as petroleum based chemicals or petrochemical called synthetic fibres.
5. Where in India jute plant are cultivated?
Ans: Jute fibre are obtained from the stem of the jute plant. It is cultivated during rainy season in West Bengal, Bihar and Assam.
6. Where in India cotton plant are cultivated?
Ans: Cotton fibre is obtained from the fruit of the cotton plant. It usually cultivated at places having black soil and warm climate like Punjab, Maharashtra, Andhra Pradesh etc, and so on.
7. What is ginning of cotton?
Ans: Cotton balls are usually picked by hand. Fibres are then separated from the seeds by combining. This process is called ginning of cotton.
8. What is the process of weaving?
Ans: The process of arranging two sets of yarn together to make a fabric is called weaving.
9. What is the process of spinning?
Ans: Fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn. This process of making yarn from fibres is called spinning.
10. What are the differences between knitting and weaving.
|(i) A single yarn is used to make a piece of fabric||(i) Two sets of yarns arrange together to make a piece of fabric|
|(ii) Wool and acrylic yarn are frequently used for knitting||(ii) Wool, silk, hemp and cotton fibres are used for weaving|
|(iii) Knitting can be done by both hand and machine||(iii) Weaving can be done by hand or by using a machine|