The general process that takes place at a sheep shearing shed is
(a) removal of fleece
(b) separating hair of different textures
(c) washing of sheep fibre to remove grease
(d) rolling of sheep fibre into yarn

Academic Chemistry NCERT Class 7

Correct Answer: (a) removal of fleece

Explanation: Removal of the fleece from a sheep is called shearing. It can be done manually with a large razor or with a shearing machine.

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Updated on: 01-Feb-2023

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How the fleece obtained from sheep is turned into wool?
What is the process by which the skin is removed from the fleece of Sheep?
Which Part Of a Sheep Is Used For Making Wool ?
Explain the process of making yarn from fibre
Like sheep hair is used for making wool why human hair is not used?
Do sheep give us milk?
You must be familiar with the following nursery rhymes:(i) ‘Baa baa black sheep, have you any Wool.’(ii) ‘Mary had a little lamb, whose fleece was white as snow.’Answer the following:(a) Which parts of the black sheep have wool?(b)What is meant by the white fleece of the lamb?
How do we get wool from sheep?
1. Select the natural fibre from the. following option:-(a) wool (b) cotton (c) Jute (d) all of these2. Which of the following is a synthetic fibre(a) Nylon (b) cotton (c) Jute (d) None of these.3. Animal fibre are _______ and _______.(a) wool & silk (b) Nylon (c) Jute (d) cotton4. Silk fibre is obtained from -(a) silkworm (b) cotton plant (c) Jute (d) none5. The process of removing seed from cotton is called _______.(a) Spinning (b) ginning (c) shearing (d) None6. From which part of the cotton plant, cotton are obtained.(a) fruit (b) stem (c) seed (d) leaves7. From which parts of plants, Jute are obtained.(a) fruit (b) stem (c) seed (d) leaves8. Name items that are made from coconut fibre.(a) Ropes (b) mats (c) both a & b (d) nylon9. Polyester is _______ fibre.(a) synthetic (b) natural (c) both a & b (d) None10. _______ of yarn makes a piece of fabric.(a) weaning (b) spinning (c) ginning (d) none.
The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large number of ester groups. another synthetic fibre C is made of a polymer D which consists of a number of glucose units joined one after the other.(a) Which fibre could be (i) terylene (ii) rayon and nylon?(b) Name the polymer D.(c) Which fibre (A, B or C) is prepared from a natural raw material?(d) Which fibre (A, B or C) contains the same type of groups as those in a PET jar?
What is fabric, yarn and fibre?
Fill in the blanks:1. Silk and wool are _________ products.2. The world's finest wool is extracted from _________ sheep.3. During the process of shearing _________ is removed.4. Silk is known as _________.5. _________ hatches from the egg of Moth.
State whether the following statements are true or false:a) Yarn is made from fibres.b) Spinning is a process of making fibres.c) Jute is the outer covering of coconut.d) The process of removing seed from cotton is called ginning.e) Weaving of yarn makes a piece of fabric.f) Silk fibre is obtained from the stem of a plant.g) Polyester is a natural fibre.
Fill in the blanks_________ is the process of washing the sheared skin to remove dirt and hair.
Which of the following is not a synthetic fibre?A. nylon B. flax C. acrylic D. polyester

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