Nylon

Q.

Which one of the following is not a synthetic fiber?

1. polyester

2. nylon

3. acrylic

4. silk

Q.

Why is it advised not to wear synthetic clothes while working in laboratory or kitchen? Name four synthetic fibres and mention their uses apart from their usage in clothes. [5 MARKS]

Q.

The synthetic fibre nylon is:

1. a product of rayon
2. also known as artificial silk
3. first fully synthetic fibre
4. the purest form of silk

Q. ___ is a strong and elastic fibre that is used to make ropes for rock climbing.

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

Q. Fill in the blanks:
a) Plant fibres are obtained from_________ and ________ .
b) Animals fibres are __________ and ___________ .

Q. Ropes made of _______ fibres are used for rock climbing.

1. nylon
2. cotton
3. jute
4. rayon

Q.

37. Why coconut fibres are used in making ropes ?

Q.

It is risky to wear synthetic clothes while working in the kitchen? True or False

1. True
2. False

Q. [ Textbook Question Q-3]
List five things which we can make using each of the following :
a. Glass
b. metal
c. plastic
d. wood

Q. Arrange the given steps in the correct sequence involved in the production of jute fibres.

1. Peeling
2. Soaking
3. Separation
4. Cutting

Q. List the important properties of nylon that make it a useful synthetic fibre. Give two important uses of nylon.

Q. Ropes made of _______ fibres are used for rock climbing.

1. rayon
2. nylon
3. cotton
4. jute

Q. Which of the following is not made of fibres?

1. Iron nail
2. Rope
3. Sweater
4. Saree

Q. Fill in the blanks:
a) Plant fibres are obtained from_________ and ________ .
b) Animals fibres are __________ and ___________ .

Q. 'Bounding putty' is a toy-like substance that is in a state between a liquid and a solid. If it is thrown on the wall, it bounces back like a ball. But, if it is placed on the table, it collapses into a thick liquid. It is made of :

1. Silicone rubber
2. Polythene
3. Tyre rubber
4. Fibreglass treated with wax

Q. Match the terms of List I correctly with the phrases given in List II.

Q. Which of the following is not made of fibres?

1. Sweater
2. Iron nail
3. Rope
4. Saree

Q. The fibre developed in New York & London simultaneously is :

1. Nylon
2. Rayon
3. Teflon
4. Silk

Q. Ropes made of _______ fibres are used for rock climbing.

1. rayon
2. nylon
3. cotton
4. jute