Tag: classification of fibres

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Questions Related to classification of fibres

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

Cotton fibers are separated from seeds by:

  1. combing

  2. knitting

  3. weaving

  4. rubbing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Combing, it is a method for preparing carded fibre for spinning. Combing is divided into linear and circular combing. The Noble Comb is an example of circular combing. The French comb is an example of linear combing. The process of combing is accompanied by filling, a process of evening out carded or combed top making it suitable for spinning. Combing separates short fibres using a rotating ring or rectilinear row of steel pins. The fibres in the 'top' produce have been straightened and lie parallel to each other. When combing wool, the discarded short fibres are called boils and are ground up into shoddy.


Hence, the correct option is $\text{A}$

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

Match the following with the correct answers.
(a) Scouring                 (i) Yields silk fibers
(b) Mulberry leaves    (ii) Cleaning sheared skin 
(c) Sheep                    (iii) Food of silk worm.
(d) Cocoon                 (iv) Wool yielding animal. 

  1. a --> ii, b--> iii, c--> iv, d--> i

  2. a--> i, b--> ii, c--> iii, d--> iv

  3. a--> iv, b--> iii, c--> ii, d--> i

  4. a--> ii, b--> i, c--> ii, d--> iv
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

(a) Scouring means cleaning the sheared skin of animals.

(b) Silk worms feed on mulberry leaves
(c) Sheep gives us wool
(d) Cocoon gives us silk fibers

Hence, answer is A

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

Natural fibres can be defined as :

  1. substances produced by plants and animals

  2. man-made fibres produced industrially

  3. synthetic fibres

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Natural fibres are fibres extracted from plants and animals. 


They can be spun into thread, filaments and ropes.

Plant fibres include seed hairs, stem fibre, leaf fibres and husk fibres. 

Animal fibres include wool, hair and secretions, such as silk.

Hence the correct option is A.

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

Coir is also known as:

  1. jute

  2. coconut fibre

  3. cotton fibre

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coir is extracted from the tissues surrounding the seed of the coconut palm. 


It is used in products such as floor mats, doormats, brushes, mattresses, etc. 

Coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut.

Hence the correct option is B.

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

Materials which are not obtained from plants and animals are called :

  1. synthetic fibres

  2. semi-synthetic fibres

  3. natural fibres

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fibres which are not obtained from plants and animals and are made in a laboratory using petrochemicals are called synthetic fibre.


Hence the option A is correct.

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

Silk fibre is drawn from the cocoon of _________.

  1. butterfly

  2. worm

  3. silkworm
  4. both $A$ and $B$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Silkworm, its larvae are fed with mulberry leaves, and, after the fourth moult, they climb a twig placed near them and spin their silken cocoons. 


This process is achieved by the worm through a dense fluid secreted from its structural glands, resulting in the fibre of the cocoon.

Hence the option C is correct.