Tag: processing of fibres

Questions Related to processing of fibres

The process of removing seeds from cotton is called ginning.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

Show answer
Correct Option: A
Explanation:
The term 'gin' is abbreviation form 'engine' referring to a machine which removes seeds, lint, and any other foreign particles.
The process of removing seeds from cotton is called ginning.. 

Spinning is a process of making fibers.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

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Correct Option: B
Explanation:

Fibers are first taken out form their source and then twisted into yarn by the process of spinning.

State whether true or false :

Fabric is the material produced by weaving or knitting yarn fibres.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

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Correct Option: A
Explanation:

Fabric is cloth or other material produced by weaving cotton, nylon, wool, silk, or other threads together. 


Fabrics are used for making things such as clothes, curtains, and sheets.


Therefore, option A is correct.

Ginning was traditionally done by machines. These days, machines are not used for ginning. Ginning is nowadays done with hands.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Ginning was traditionally done by hand. These days, machines are also used for ginning.

The machine used for weaving is called: 

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. tackle

  2. powerloom

  3. handloom

  4. both B and C

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Correct Option: D
Explanation:

The process of combining two different sets of yarn called weaving it is done on a machine called handloom or powerloom.

The device on which weaving is done is called:

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. Looms

  2. Ginning

  3. Weaving machine

  4. Netting device

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Correct Option: A
Explanation:

Weaving is done on looms. Loom is an apparatus used for making fabric by weaving yarn or thread.

The process of arranging two sets of yarns together to make a fabric is called ginning.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

The process of arranging two sets of yarns together to make a fabric is called weaving. 

Charkha is an example of spinning.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Spinning of yarn on a large scale is done with the help of spinning machine. Charkha is an example of spinning machine.

Sweaters are made by the process of:

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. weaving

  2. knitting

  3. both A and B

  4. none of the above

Show answer
Correct Option: C

State whether true or false :

Retting is needed to separate cotton fibres from the stem of the plant.

chemistry fibre to fabric: plant fibre yarn to fabric from fibre to fabric processing of fibres

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Retting is a method which is used on plants to rot away the cellular tissues and gummy substances surrounding the fibre bundles. 


This helps in easy separation of the fibre from the stem. 

This is done by the action of bacteria and moisture on plants. Hence, retting is needed to separate cotton fibres from the stem of the plant.

Thus, the correct answer is 'True.