Fibre to Fabric: Introduction and Important MCQs

Ans.  (a) Silk

Explanation. Silk is a natural fibre because it is produced by the silkworm as a cocoon. the silkworm creates a cocoon around itself as a nest which is extracted to create the silk fibre cloth. Silk is considered a luxurious fabric, it is very popular in the fabric industry. Silk obtained from larva is considered the best form of silk.

Ques. Which one of the following is a synthetic fibre?

(a) Nylon

(b) Rayon

(c) Polyester

(d) All of these

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Ans. (d) All of these

Explanation. Nylon, rayon & polyester of them are all synthetic are fibres. Synthetic fibres are artificially made from polymers. Polymers are compounds having a long chain-like structure that provides strength in the material. Some synthesised materials are even waterproof. Synthetic fibres are used more than natural fibres due to their special characteristic features.

Ans.  (d) ginning

Explanation. Ginning is the process of filtering cotton of unwanted components such as seeds, debris. The cotton is first dried to get the moisture off and then cleaned to remove the debris. It is a mechanical process and requires machines to process large quantities of cotton. The other three processes which are weaving, spinning, knitting are the processes of yarn or cloth formation from the fibres.

Ans.  (c) fibre

Explanation. Fibres are the thinner strands from which clothes are made. Fibres are arranged together to make a thread and a bundle of the thread makes up a yam. Fibres are the smallest unit of cloth. In case of natural fibres, they are made up of chemical compounds called polymers. For them, the smallest unit is the molecule of the chemical compounds.

Ans. (a) stem of jute plant

Explanation. Seeds, fruits and roots of the jute plant are not rich in fibres hence, the jute fibres are extracted from the stem of the jute plant. Jute is extracted from patsun plant. It is usually 3 to 4 meters tall in height. It is also called as white jute plant. The roots and shoot part of the plant does not contain good quality fibres that is why it is extracted from the stem.

Ans. (c) two sets of yams in weaving and single in knitting

Explanation. The process of knitting requires single yams but in weaving two sets of yams are required to make a piece of cloth. Weaving requires threads to be warped in a way to form a criss-cross pattern, this makes the cloth elastic. Knitting requires threads to be aligned parallel to each other, this makes the cloth stretchable.

Ans.  (c) both (a) and (b)

Explanation. Weaving can be done in both handlooms and power looms. Power loom weaving is a faster process. Takli is not used in weaving. Power looms require steam engines or electric power to function. In handlooms as the name suggests all the work is done manually which include shedding, picking and beating the fabric.

Ans. (d) Both (a) and (c)

Explanation. Yam is made from fabric by spinning, takli and charkha make yam by spinning whereas, loom fabric is woven. In this process, a mass of cotton wool is drawn out and twisted. This brings the fibres together to form yams. Yams are made from both synthetic and natural fibres.

Ans. (c) Cotton

Explanation. Wool is obtained from animals by rearing. Silk is extracted from silkworm, Nylon is a synthetic fibre. Cotton is obtained from plants. Cotton is actually a white fibrous covering of the seed of the cotton plant. This is extracted and processed to form a cotton fibre. It is light and strong in nature and allows air to pass through it easily. Cotton was discovered several thousand years back and still, it is used widely in the clothing and fabric industry.

Ans. (c) flowering stage

Explanation. In order to get the best quality of fibres, the jute plant is cut during the flowering stage. After this stage, the plant fibres become harder and are difficult to use. the jute fibres are extracted from the stem of the jute plant. Jute is extracted from patsun plant. It is usually 3 to 4 meters tall in height. It is also called as white jute plant. The roots and shoot part of the plant does not contain good quality fibres that is why it is extracted from the stem.

Ans. (b) bobbins

Explanation. Yarn is wound on big reels. These reels facilitate the storage of the yarn. These are called bobbins. Bobbins are cylindrical in shape. Bobbins are also helpful in knitting. Knitting bobbins are tiny in size, yarn is wrapped around them and it facilitates as a storage device for yarn that is easy to hold and use.

Ans. (a) bailing

Explanation. Bailing is the process of compressing and packing cotton into large bales using wires and hoops. Bales are made to transport from one place to another. Cotton fibres are compressed to form a bale of cotton. Bales also act as the wholesale unit of cotton and hence becomes useful in the cotton trade. 

Ans. (c) retting

Explanation. Fibres are extracted from the jute stem by the process of retting. Retting is the process in which microorganisms are used to separate fibres from the stem. Jute is extracted from patsun plant. The roots and shoot part of the plant does not contain good quality fibres that is why it is extracted from the stem. In order to get the best quality of fibres, the jute plant is cut during the flowering stage.

Ques. A single yarn is used to make a piece of fabric is:

(a) gimming

(b) spinning

(c) weaving

(d) knitting

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Ans. (d) knitting

Explanation. The process of knitting requires single yams but in weaving two sets of yams are required to make a piece of cloth. . Weaving requires threads to be warped in a way to form a criss-cross pattern, this makes the cloth elastic. Knitting requires threads to be aligned parallel to each other, this makes the cloth stretchable.

Ans. (a) loom

Explanation. Loom is used for weaving fabric. There are two types of looms power loom and handloom. Power looms require steam engines or electric power to function. In handlooms as the name suggests all the work is done manually which include shedding, picking and beating of the fabric. In modern times power looms are used due to their efficiency and time-saving feature.

Ans. (b) natural fibres

Explanation. Fibres obtained from natural sources are called natural fibres. Artificial or man-made fibres are called synthetic fibres. Natural fibre can be referred to as an agglomeration of cells wherein diameter is negligible compared to the length. common natural fibres are sourced from the plant kingdom that comprises cotton, flax, bamboo, sisal, jute, and hemp, whose main component is cellulose. 

Ans. (a) synthetics fibres

Explanation. Synthetic fibres are artificially made from polymers. Polymers are compounds having a long chain-like structure that provides strength in the material. Some synthesised materials are even waterproof. Synthetic fibres are used more than natural fibres due to their special characteristic features.

Ans. (c) patsun

Explanation. Patsun is a plant belonging to the Malvaceae family. Jute is extracted from patsun plant. It is usually 3 to 4 meters tall in height. It is also called as white jute plant. Fibres are extracted from jute stem by the process of retting. In order to get the best quality of fibres, the jute plant is cut during the flowering stage.

Ans. (b) rainy

Explanation. Patsun plant requires humid conditions and water for cultivation, hence it is cultivated during the rainy season. The jute plant is cut during the flowering stage. The process of extracting jute from the plant is called retting which includes the use of microorganisms to separate fibres from the stem of the patsun plant.

Ques. In which soil do jute plants grow?

(a) black soil

(b) loamy soil

(c) white soil

(d) alluvial

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Ans. (d) alluvial

Explanation. Alluvial soil is rich in minerals and due to its highly porous nature, it requires less water. This type of soil is formed due to the alluvial deposit by running water on the banks and edges. In India the alluvial soil is formed by the Indo-Gangetic-Brahmaputra rivers due to silt deposited by them, this makes the region fertile and serves as an agricultural hotspot.

Ans. (d) All of these

Explanation. Jute is generally grown in the northeastern region of India. Including the region of Bihar, Assam & West Bengal. Jute requires a hot and humid type of climate with regular rainfall. Alluvial soil is considered best for jute cultivation. The region of Bihar, Assam, West Bengal fulfils all the preferable requirements for jute growing.

Ans. (c) pale yellow

Explanation. Jute fibres are generally pale yellow in colour due to the colour of the patsun plant. This plant is also known as white jute. Jute is generally grown in the northeastern region of India. Including the region of Bihar, Assam & West Bengal.

Ans. (a) 6-8 feet in length

Explanation. Jute fibres are extracted from the stem of the platsun plant. The general length of the jute fibres is 6 to 8 feet. patsun plant is usually 3 to 4 meters tall in height. It is also called as white jute plant. Jute is generally grown in the northeastern region of India. Including the region of Bihar, Assam & West Bengal

Ans. (d) takli

Explanation. Takli is a small handheld device that is used for spinning yarn. It is a hand-operated device. Charkha is also another hand-operated device used for similar purposes. Mahatma Gandhi used charkha for spinning. It is a symbol that describes the power of self-reliance, perseverance, and determination.

Ans. (b) charkha

Explanation. Charkha is a hand-operated spinning device. Mahatma Gandhi used charkha for spinning it has 24 spokes and the national flag chakra is also inspired by this. It is a symbol that describes the power of self-reliance, perseverance, and determination. Charkha was used to make khadi out of cotton in medieval times.