Tag: botany

Questions Related to botany

Which of the following is an example of soft and fine wool?

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

  1. Merino

  2. Cotswold

  3. Both A and B

  4. None of them

Show answer
Correct Option: A
Explanation:

$Merino$, 

Merino wool is fine and soft. Staples are commonly $65–100 mm (2.6–3.9 in)$ long. A Saxon Merino produces $3–6 kg (6.6–13.2 lb)$ of greasy wool a year, while a good quality Peppin Merino ram produces up to $18 kg (40 lb)$. Merino wool is generally less than $24 micron$ in diameter. 

Which of the following does not yield wool?

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

  1. Camel

  2. Sheep

  3. Deer

  4. Goat

Show answer
Correct Option: C
Explanation:

Deer do not yield wool. Camels, sheep, goats, yaks yield wool. Wool is a natural fiber. 

Which of the following are synthetic fibres?

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

  1. Wool

  2. Cotton

  3. Acrylic

  4. Polystyrene

Show answer
Correct Option: C,D
Explanation:

Acrylic is a synthetic fibre resembling wool used to knit sweaters, socks, and shawls.

Polystyrene is also a synthetic fibre used for making protective packagings such as packing peanuts and CD and DVD cases, containers such as clamshells, lids, bottles, trays, tumblers, disposable cutlery and in the making of models.

Therefore, option C and D both are correct.

Which of the following fibre can be drawn into very fine fibres that can be woven like any other yarn?

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

  1. Terylene

  2. Rayon

  3. Acrylic

  4. Nylon

Show answer
Correct Option: A
Explanation:

Terylene is a popular polyester. It can be drawn into very fine fibres that can be woven like any other yarn.

The process of removing the fleece of sheep along with a thin Layer of skin is called _________.

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

  1. Shearing

  2. Soaring

  3. Sorting

  4. Scouring

Show answer
Correct Option: A
Explanation:

Shearing

Sheep shearing is the process by which the woollen fleece of a Sheep is cut off. The person who removes the sheep's wool is called a shearer. Typically each adult sheep is shorn once each year (a sheep may be said to have been "shorn" or "sheared", depending upon dialect). The annual shearing most often occurs in a shearing shed a facility specially designed to process often hundreds and sometimes more than $3,000$ sheep per day.

Cotton fibers are separated from seeds by:

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

  1. combing

  2. knitting

  3. weaving

  4. rubbing

Show answer
Correct Option: A
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 $\text{A}$

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. 

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

  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

Show answer
Correct Option: A
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

Natural fibres can be defined as :

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

  1. substances produced by plants and animals

  2. man-made fibres produced industrially

  3. synthetic fibres

  4. none of the above

Show answer
Correct Option: A
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.

These clothes are used best in summer :

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

  1. Wool

  2. Silk

  3. Cotton

  4. Nylon

Show answer
Correct Option: C
Explanation:

Cotton is a natural fiber it has the tendency to absorb the sweat. Also, its a breathing fabric and so allows air to pass through keeping your body cool.  cotton is the best fabric to use in summer.

Coir is also known as:

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

  1. jute

  2. coconut fibre

  3. cotton fibre

  4. none of the above

Show answer
Correct Option: B
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.