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1. Which one of the following is a synthetic fibre?
a.) Rayon
b.) Nylon
c.) Polyester
d.) All of the above
Answer – (d.) All of the above
Explanation – Synthetic fibres are man-made polymers that are used to create fabric. Polymers are formed when many small units are chemically joined together.
2. The process of separating cotton fibres from the seeds is called ____.
a.) Retting
b.) Ginning
c.) Weaving
d.) Spinning
Answer – (b.) Ginning
Explanation – Ginning is the process of separating cotton fibres from cotton seeds or lint. It also aids in the removal of impurities such as dust, small stones, wooden particles, and so on.
3. Which of the following is not a plant fibre?
a.) Cotton
b.) Jute
c.) Silk
d.) Bamboo
Answer – (c.) Silk
Explanation – Silk is obtained from silkworms and is, therefore, an animal fibre.
4. What is the process by which yarn from raw fibrous material is made called?
a.) Spinning
b.) Knitting
c.) Weaving
d.) Ginning
Answer – (a.) Spinning
Explanation – Spinning is the process of turning fibres into yarn.
- Knitting is the method of making fabric out of yarn. It is accomplished by interlacing a series of yarn loops with needles.
- Weaving is the process of combining two sets of yarn to create a fabric. Weaving is done on looms.
- Ginning is the process of removing cotton seeds.
5. Which of the following fibres contains protein units in their molecules?
a.) Cotton
b.) Nylon
c.) Silk
d.) Jute
Answer – (c.) Silk
Explanation –
- Cotton is composed of cellulose.
- Silk is made up of a single core protein called fibroin.
- Nylon and Rayon are synthetic fibres composed of chemicals.
6. Fabrics can be obtained by which of the following processes?
a.) Ginning
b.) Weaving
c.) Knitting
d.) Reeling
Answer – (b.) Weaving and (c.) Knitting
Explanation – Knitting is the process of transforming thread or yarn into fabric or cloth. Weaving is the process of interlacing two types of yarn or threads to create a fabric or cloth.
7. What is the process of making yarn from fibres called?
a.) Weaving
b.) Knitting
c.) Spinning
d.) Ginning
Answer – (c.) Spinning
Explanation – Spinning is the twisting together of drawn-out strands of fibre to form yarn.
8. The climate that is suitable for growing cotton plants is ____.
a.) Warm climate
b.) Humid climate
c.) Cold climate
d.) Rainy climate
Answer – (a.) Warm climate
Explanation – Cotton is typically grown in areas with black soil and a warm climate.
9. The method of extracting threads from a cocoon for the use of silk is called ____.
a.) Weaving
b.) Ginning
c.) Reeling
d.) Spinning
Answer – (c.) Reeling
Explanation – Silk reeling is the process of reeling together several cocoon baves to produce a single thread.
10. Which fibre is usually picked by hands and then separated from the seeds by combing?
a.) Jute
b.) Silk
c.) Cotton
d.) Wool
Answer – (c.) Cotton
Explanation – Ginning is the process of separating cotton fibres from seeds.
11. The lamb’s fleece refers to ____.
a.) A popular breed of sheep
b.) The white colour of the fur
c.) Hairy fibres of the sheep
d.) All of the above
Answer – (c.) Hairy fibres of the sheep
Explanation – The white fleece of the lamb refers to the pure white coloured hairy skin of the lamb.
12. Which of the following breeds of goats give wool?
a.) Cashmere
b.) Beetal
c.) Angora
d.) Barbari
Answer – (a.) Cashmere and (c.) Angora
Explanation – Although sheep are commonly associated with wool production, goats produce some of the most extravagant fibres. Mohair from Angora goats and Cashmere from a variety of goat breeds are among these fibres.
13. The rearing of silkworms is called ____.
a.) Pisciculture
b.) Sericulture
c.) Polyculture
d.) Arboriculture
Answer – (b.) Sericulture
Explanation –
- Pisciculture is fish farming
- Sericulture is the rearing of silkworms
- Polyculture is the planting of two different crops in the same field at different times
- Arboriculture is the management of trees, shrubs, perennial woods, etc.
14. Which of the following fibres is used as a wick in an oil lamp?
a.) Nylon
b.) Cotton
c.) Linen
d.) Jute
Answer – b.) Cotton
Explanation – Cotton, which is 90% cellulose, has good absorbing power and a sponging action, making it suitable for wicks. It is also inexpensive and does not melt when heated to high temperatures.
15. Which of the following animals yield wool?
a.) Camel
b.) Sheep
c.) Goat
d.) All of the above
Answer – (d.) All of the above
Explanation – Sheep are the most prevalent producers of wool, though it also comes from camels, goats and rabbits.
16. Which of the following is inexpensive?
a.) Silk
b.) Wool
c.) Cotton
d.) Linen
Answer – (c.) Cotton
Explanation – Silk is very expensive due to its scarcity and high production costs. The process of making yarn from wool is time-consuming. There are numerous stages to the process, and each one can be costly due to the products and labour involved.
17. The process of removing the fleece of sheep, along with a layer of skin, is called ____.
a.) Spinning
b.) Weaving
c.) Shearing
d.) Ginning
Answer – (c.) Shearing
Explanation – When a sheep grows a thick coat of hair, it is shaved off to produce wool. Shearing is the process of removing a sheep’s woollen fleece with a thin layer of skin.
18. The fabric which is smooth to touch and has vibrant colour and shine is ____.
a.) Cotton
b.) Silk
c.) Wool
d.) Rayon
Answer – (b.) Silk and (d.) Rayon
Explanation – Silk fabric which is a natural fibre, is commonly thought to have a soft and smooth texture as well as a luminous or reflective surface. Rayon is called artificial silk because it has properties similar to silk.
19. Choose the incorrect statement from the following:
a.) Polyester is a synthetic fibre
b.) The yarn is made from fibres
c.) Rayon is called artificial silk
d.) Jute is the outer covering of coconut
Answer – (d.) Jute is the outer covering of coconut
Explanation – Jute is made from the stem of the jute plant. It is grown in West Bengal, Bihar, and Assam in India.
20. Which of the following fibres is cultivated during the rainy season?
a.) Cotton
b.) Silk
c.) Jute
d.) Wool
Answer – (c.) Jute
Explanation – A warm and wet climate, as provided by the monsoon climate during the fall season, immediately followed by summer, is ideal for growing jute.
