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प्रश्न
Polyester is a natural fibre.
पर्याय
True
False
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उत्तर
This statement is False.
संबंधित प्रश्न
Spinning is a process of making fibres.
A natural fibre is called ______.
A polymer is a chain of many small units joined together which are called ______.
Match items in List A with the items of list B.
| List A | List B |
| (a) nylon | (i) non-stick coating |
| (b) PET | (ii) electric switches |
| (c) rayon | (iii) parachutes |
| (d) thermosetting plastics | (iv) polyester |
| (e) teflon | (v) artificial silk |
The rearing of silkworms for obtaining silk is called ______.
Hair trap a lot of ______, which is a poor ______ of heat.
Fibres that are made using raw materials from ______ are synthetic fibres.
Artificial fibres are stronger than natural fibres.
The following is an answer given by Boojho to a question asked by his teacher - “Cotton, wool, silk and jute are classified as natural fibres whereas nylon and polyester are classified as synthetic fibres”.
Can you tell what question the teacher has asked?
Describe the two main processes of making fabric from yarn.
