Tag: classification of fibres

Questions Related to classification of fibres

Animal fibers generally comprise of:

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. collagen.

  2. keratin.

  3. both $A$ and $B$.

  4. triglycerides.

Show answer
Correct Option: C
Explanation:

Animal fibers are natural fibers that consist largely of particular proteins. These proteins include collagen, keratin and fibroin.

examples include silk, sinew, wool, catgut, angora, mohair and alpaca.
The animal fibers used most commonly both in the manufacturing world as well as by the hand spinners are wool from domestic sheep and silk.

Which of the following fibre is not a natural fibre?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Cotton

  2. Silk

  3. Nylon

  4. Jute

Show answer
Correct Option: C
Explanation:

Nylon is a man-made synthetic fibre prepared by the process of polymerisation. 


The monomer used to prepare Nylon is E-caprolactum. 

Hence the option C is correct.

Bed sheets, curtains, tents, parachutes etc are made from :

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Natural fibres

  2. Synthetic fibres

  3. Yarn

  4. Plastics

Show answer
Correct Option: A,B
Explanation:

Fibres which are man-made are called synthetic fibres and which occurs naturally are called natural fibres. Rayon (synthetic fibre), when mixed with cotton (natural fibre), is used to making curtains, bedsheets etc. of clothes, ropes, seat-belts, curtains, sleeping bags, parachutes, tents etc.

Raw materials for most of the natural fabrics are obtained from :

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. water

  2. earth

  3. petroleum

  4. sky

Show answer
Correct Option: C
Explanation:

Some of the most common raw materials for the production of natural fabrics are cotton, wool, flax, ramie and wax. Since wax is a petroleum product, C is the correct answer.

Which of the following represents correct statement(s)?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. The fibers of some fabrics such as cotton, jute, silk and wool are obtained from plant and animals. These are called synthetic fibers.

  2. Cotton and jute are examples of fibers obtained from animals.

  3. Wool and silk fibers are obtained from plants.

  4. None of the above

Show answer
Correct Option: D
Explanation:

The correct statements will be-


(A) The fibers of some fabrics such as cotton, jute, silk and wool are obtained from plant and animals. These are called natural fibers.

(B) Cotton and jute are examples of fibers obtained from plants.

(C) Wool and silk fibers are obtained from animals.

The botanical name of moonj plant is:

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Hibiscus moonja

  2. Saccharum moonja

  3. Gossypium

  4. All of the above

Show answer
Correct Option: B
Explanation:

The botanical name of this plant is Sachatum moonja.


Moonj is obtained from the moonj grass. It is a grass found in arid areas and along river banks in India. It belongs to the family Gramineae.

Hence, option B is correct.

Use of charkha was popularized by Mahatma Gandhi as part of the Independence movement.

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Use of charkha was popularized by Mahatma Gandhi as part of the Independence movement. He encouraged people to wear clothes made of homespun yarn and disapprove of imported cloth made in Britain. Charkha is a handmade device used to spun yarn.

Which of the following are natural fibres?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. wool, cotton, nylon, jute

  2. jute, silk, rayon, wool

  3. silk, cotton, wool, jute

  4. silk, jute, cotton, polyester

Show answer
Correct Option: C
Explanation:

Natural fibres are obtained from natural sources like plants animals.
Examples of Natural fibres are silk, cotton, wool and jute.

________ is usually picked by hands and fibres are then separated from the seeds by combing.

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Jute

  2. Moonj

  3. Cotton

  4. None of the above

Show answer
Correct Option: C
Explanation:

Cotton is usually picked by hands and fibres and then separated from the seeds by combing.

Which of the following is monomer of natural rubber?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Isoprene

  2. Chloroprene

  3. Caprolactum

  4. Styrene

Show answer
Correct Option: A
Explanation:

Natural rubber is an addition polymer that is obtained as a milky white fluid known as the latex from a tropical rubber tree. Natural rubber is from the monomer isoprene (2-methyl-1,3-butadiene). Since isoprene has two double bonds, it still retains one of them after the polymerization reaction. Natural rubber has the cis configuration for the methyl groups. So, the correct option is A i.e. Isoprene.