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Olympiad Test: Fibre To Fabric - CTET & State TET MCQ


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20 Questions MCQ Test NCERT Textbooks (Class 6 to Class 12) - Olympiad Test: Fibre To Fabric

Olympiad Test: Fibre To Fabric for CTET & State TET 2024 is part of NCERT Textbooks (Class 6 to Class 12) preparation. The Olympiad Test: Fibre To Fabric questions and answers have been prepared according to the CTET & State TET exam syllabus.The Olympiad Test: Fibre To Fabric MCQs are made for CTET & State TET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Fibre To Fabric below.
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Olympiad Test: Fibre To Fabric - Question 1

Which one is a type of synthetic fibre?

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 1

Cotton, silk and jute are natural fibres obtained from plant and animals. Nylon is a synthetic fibre manufactured by human beings.

Olympiad Test: Fibre To Fabric - Question 2

Chemical constituent of cotton is

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 2

Chemical constituent of cotton is cellulose. Cellulose forms the cell wall of plant cell.

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Olympiad Test: Fibre To Fabric - Question 3

Scientific name of mulberry silk moth is

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 3

In Africa, the commonly occurring silkworm species is the Bombyx mori. This species belongs to the Class; Insecta, Order: Lepidoptera, family: Bombycidae, genus: Bombyx. The Latin species name Bombyx mori means silkworm of the mulberry tree. A name that characteristically defines this worm species as it feeds mainly on the mulberry tree leaves during one of its critical lifecycles. This particular species is the best producing silkworm and due to centuries of domestication, this species is no longer found in the wild and has even lost its natural instinct to fend for itself in the wild.

Olympiad Test: Fibre To Fabric - Question 4

Which is not a synthetic fibre?

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 4

Nylon, polyester and rayon are synthetic fibre manufactured by human beings. Hemp is used as fibre, oil and seed.  
Among the given options hemp is the only natural fibre. All the other three are examples of synthetic fibres.
Hemp has a long history as fibre and it is one of the fastest-growing plants. It is a variety of the cannabis Sativa plant species that is grown specifically for the industrial uses of its derived products. 

Olympiad Test: Fibre To Fabric - Question 5

Weavers weaves the silk thread into

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 5

Weavers weave the silk thread into silk cloth. Silk cloth is used to make garments.

Olympiad Test: Fibre To Fabric - Question 6

The machine that comb loose wool in sheet is called

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 6

Carding machine is used to comb loose wool in sheet to make the wool soft and attractive.

Olympiad Test: Fibre To Fabric - Question 7

Wool and Silk are

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 7

Wool and silk are natural fibres obtained from plants and animals.

Olympiad Test: Fibre To Fabric - Question 8

Pashmina is obtained from a variety of

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 8

Pashmina is the finest quality of wool obtained from a special variety of goat Pashmina living in high altitude regions of India. This goat is mainly native to Tibet, Nepal, and Ladakh in Jammu Kashmir, India. They are also called Changthangi goats.

Olympiad Test: Fibre To Fabric - Question 9

Silk is a natural __________ fibre.

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 9

Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.

Olympiad Test: Fibre To Fabric - Question 10

Thick coat of hair on sheep’s body is called

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 10

Thick coat of hair on sheep’s body is called

Olympiad Test: Fibre To Fabric - Question 11

Which of the following species is most common silk moth?

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 11

The most common silk moth is mulberry silk moth and its silk fibres are soft, lustrous, and elastic and can be dyed in beautiful colors.

Olympiad Test: Fibre To Fabric - Question 12

Which of the following animal is not used to obtain wool?

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 12

Wool can be obtained from sheep, goat and camel. Hair of dog is never used to obtain wool.

Olympiad Test: Fibre To Fabric - Question 13

When silk was first produced in china?

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 13

Silk fabric was invented in Ancient China and played an important role in their culture and economy for thousands of years. Legend has it that the process for making silk cloth was first invented by the wife of the Yellow Emperor, Leizu, around the year 2696 BC.

Olympiad Test: Fibre To Fabric - Question 14

Silk moth that contain silk is called

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 14

The silk moth that contains silk is called cocoon. Silk threads are wrapped on the body of silk larva to form cocoon.

Olympiad Test: Fibre To Fabric - Question 15

The silk and wool are made of a kind of

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 15

Silk and wool are chemically made up of protein molecules.

Olympiad Test: Fibre To Fabric - Question 16

The process of rearing silk worms in order to obtain silk is called

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 16

The process of rearing silk worms to obtain silk is called sericulture.

Olympiad Test: Fibre To Fabric - Question 17

Shearing do not hurt the sheep because

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 17

Shearing is removing of upper skin along with hair to obtain wool. Shearing does not hurt the sheep because upper most skin of sheep is dead

Olympiad Test: Fibre To Fabric - Question 18

The process of obtaining silk fibre from cocoons is called

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 18

The process of obtaining silk fibre from cocoon is called reeling. It involve unwinding of filaments from cocoon and collecting over a fast moving reel.

Olympiad Test: Fibre To Fabric - Question 19

Boiling of cocoon is done to

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 19

Cocoon is boiled to kill the pupa inside the cocoon and obtaining the silk thread of silk.

Olympiad Test: Fibre To Fabric - Question 20

Silk yarn is as strong as

Detailed Solution for Olympiad Test: Fibre To Fabric - Question 20

Silk yarn is as strong as steel. Silk yarn is made up of protein molecules twisted in particular manner to give high tensile strength.

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