Tag: fibres

Questions Related to fibres

Yarn is made from fibers.

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

  1. True

  2. False

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Correct Option: A
Explanation:

yes, Yarn is made from fibres by spinning.

What is fleece?

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

  1. The fine soft under hair is called fleece.

  2. The long hair.

  3. The hard under hair is called fleece

  4. None of these.

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Correct Option: B
Explanation:

$A$ 

A woolen coat of a domestic sheep or long-haired goat, especially after being sheared (but before being processed into yarn or thread).

Which of the following is considered as animal fibre?

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

  1. Alpaca fibre and mohair

  2. Silk and fur

  3. Alpaca and angora

  4. All of them

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Correct Option: D
Explanation:

Animals fibres are those which largely consists protein. Some of the animals have the property to provide such kind of father or fur which can be used to produce wool. All the given examples are animal fibre use to form a different type of wool.

The rearing of silkworms to obtain silk is called __________:

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

  1. Sericulture

  2. Horticulture

  3. Agriculture

  4. None of these

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Correct Option: A
Explanation:
$A$
In sericulture,silkworms are cultivated to produced silk. Although there are several commercial species of silkworms, Bombyx Mori (the caterpillar of the domesticated silk moth) is the most widely used and intensively studied silkworm. Silk was first produced in China as early as the Neolithic period.

Pashmina a type of wool is obtained from:

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

  1. camel

  2. goat

  3. sheep

  4. artificially

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Correct Option: B
Explanation:

Pashmina a very fine quality of wool is obtained from goats.

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

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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

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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

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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

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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

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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.