Tag: history of fabric

Questions Related to history of fabric

Which of the following is true?

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

  1. Cellulose is made up of glucose units.

  2. Weaving and knitting are two process to get plastic.

  3. Plastics get corroded easily.

  4. Plastics are not polymers.

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Correct Option: A
Explanation:

Cellulose is made up of glucose units by glycosidic bonds.

Weaving and knitting are used to make silk fiber.
Plastic is non-corrosive and it is a polymer of the various compound.
Example: PVC, bakelite, etc.

The fruits of cotton plants are called:

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

  1. calotropis

  2. cotton bolls

  3. xanthiun

  4. none of the above

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Correct Option: B
Explanation:

Cotton bolls.

The fruit, called bolls, then begin to develop. These green, immature bolls are a segmented pod containing approximately 32 immature seeds from which the cotton fibres  will grow. The boll is considered a fruit because it contains seeds.

In which of the following, polymer chains are held with hydrogen bonds?

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

  1. Thermoplastics

  2. Fibres

  3. Thermosetting polymers

  4. Elastomers

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Correct Option: B
Explanation:

$Fibres$ are the thread forming solids which possess high strength and high modulus. This characteristic is attributed to the strong intermolecular forces like hydrogen bonding.

Weaving is the process of 

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

  1. Separating seeds from cotton bolls

  2. Spinning of yarn

  3. Arranging two sets of yarn together to make a fabric

  4. Immersing stems of jute plant in water

Show answer
Correct Option: C
Explanation:

Weaving is a method of textile production in which two distinct sets of yarns or threads are interlaced at right angles to form a fabric or cloth. Cloth is made by crossing two sets of threads over and under each other. The two sets of threads are called warp and weft.

Therefore, the correct answer is option C.

Acrylic is used for making carpets and blankets.

chemistry materials of daily use classification of fibres fibres history of fabric

  1. True

  2. False

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Correct Option: A
Explanation:

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of $\sim100,000$, about $1900$ monomer units. Strong and warm, acrylic fiber is often used for sweaters and tracksuits and as linings for boots and gloves, as well as in furnishing fabrics and carpets. It is manufactured as a filament, then cut into short staple lengths similar to wool hairs, and spun into yarn.
option A is correct

After people began to settle in agricultural communities, they learnt to weave twigs and grass into mats and baskets.

chemistry materials of daily use classification of fibres fibres history of fabric

  1. True

  2. False

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Correct Option: A
Explanation:

After people began to settle in agricultural communities, they learnt to weave twigs and grass into mats and baskets. Vines, animal fleece or hair were twisted together into long strands. These were woven into fabrics.

In ancient times, which of the following materials were used by people to cover themselves.? 

chemistry materials of daily use classification of fibres fibres history of fabric

  1. barks

  2. big leaves of trees

  3. animal skins

  4. furs

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Correct Option: A,B,C,D
Explanation:

In ancient times, barks and big leaves of trees or animal skins and furs were used by people to cover themselves.

Saree, dhoti, lungi or turban is used as an un-stitched piece of fabric.

chemistry materials of daily use classification of fibres fibres history of fabric

  1. True

  2. False

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Correct Option: A
Explanation:

Stitched clothes have gone through many variations since the invention of stitching. But, even today, saree, dhoti, lungi or turban is used as an un-stitched piece of fabric.

After people began to settle in agricultural communities, they learnt to weave ____________ and ____________ into mats and baskets.

chemistry materials of daily use classification of fibres fibres history of fabric

  1. grass, twigs

  2. cotton, jute

  3. twigs, grass

  4. jute, cotton

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Correct Option: A
Explanation:

After people began to settle in agricultural communities, they learnt to weave grass and twigs into mats and baskets.

In ancient __________, cotton as well as flax were cultivated near the river Nile and were used for making fabrics.

chemistry materials of daily use classification of fibres fibres history of fabric

  1. Libya

  2. Egypt

  3. Sudan

  4. Ethiopia

Show answer
Correct Option: B
Explanation:

Egypt is known as the oldest agricultural civilization. Due to less rainfall, river Nile was used as a source of water for agriculture. Hence, in ancient Egypt, cotton as well as flax were cultivated near the river Nile and were used for making fabrics.