Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

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

  1. Merino

  2. Cotswold

  3. Both A and B

  4. None of them
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

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

Which of the following are synthetic fibres?

  1. Wool

  2. Cotton

  3. Acrylic

  4. Polystyrene
Reveal answer Fill a bubble to check yourself
C,D Correct answer
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.

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

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

  1. Shearing

  2. Soaring

  3. Sorting

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

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.