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From fibre to fabric - class-VII

Description: from fibre to fabric
Number of Questions: 30
Created by:
Tags: chemistry natural fibres materials of daily use fibre to fabric: plant fibre polymer chemistry fibre to fabric
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The process of removing seeds from cotton is called ginning.

  1. True

  2. False


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.

  1. True

  2. False


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.

  1. True

  2. False


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.

  1. True

  2. False


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: 

  1. tackle

  2. powerloom

  3. handloom

  4. both B and C


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:

  1. Looms

  2. Ginning

  3. Weaving machine

  4. Netting device


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.

  1. True

  2. False


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.

  1. True

  2. False


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:

  1. weaving

  2. knitting

  3. both A and B

  4. none of the above


Correct Option: C

State whether true or false :

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

  1. True

  2. False


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.

Select the process required to obtain the fabric.

  1. Hardening

  2. Setting

  3. Weaving

  4. Knitting


Correct Option: C,D

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

  1. spinning

  2. weaving

  3. knitting

  4. None of the above


Correct Option: B
Explanation:

Weaving is the process in which two sets of yarns are arranged or interlaced together at right angles to make a fabric.

________________ is a method by which yarn is manipulated to create a textile or fabric.

  1. Knitting

  2. Spinning

  3. Weaving

  4. Ginning


Correct Option: A
Explanation:
Knitting, it is a method by which yarn is manipulated to create a textile pr fabric or  for use in many types of garments.

Knitting creates multiple loops of yarn, called stitches, in a line or tube. Knitting has multiple active stitches on the needle at one time. Knitted fabric consists of a number of consecutive rows of interlocking loops. As each row progresses, a newly created loop is pulled through one or more loops from the prior row, placed on the gaining needle, and the loops from the prior row are then pulled off the other needle.

Cotton is usually picked by hand. Fibres are then separated from the seeds by combing. This process is called ___________ of cotton.

  1. ginning

  2. weaving

  3. spinning

  4. knitting


Correct Option: A
Explanation:

Ginning, the process of separating fibres from seeds is called ginning. It is usually done manually or using machines called cotton gin. A cotton gin is a machine that quickly and easily separates cotton fibresers from their seeds, allowing for much greater productivity than manual cotton separation.The fibers are then processed into various cotton goods such as linens, while any undamaged cotton is used largely for textiles like clothing. Seeds may be used to grow more cotton or to produce cottonseed oil.

Which of the following represents correct statement(s)?

  1. From the bolls, cotton is usually picked by hand.

  2. Fibers are then separated from the seeds by combing.

  3. This process is called ginning of cotton.

  4. All of the above.


Correct Option: D
Explanation:

Ginning of cotton is the process in which cotton is usually picked by hand from the bolls and fibres are then separated from the seeds by combing.

What is the name of the process which involves pulling and twisting of strands of a fiber?

  1. Spinning

  2. Ginning

  3. Weaving

  4. Knitting


Correct Option: A
Explanation:

Spinning is the process which involves pulling and twisting of strands of a fiber.

Which of the following process of making cotton fabric is done on machines called LOOMS?

  1. Weaving is done on machines known looms.

  2. Knitting is done on machines known looms.

  3. both a and b

  4. none of these


Correct Option: C
Explanation:

Option $C$ is correct answer.

The correct order of the process involved in making cotton fabric from cotton is:

  1. hand picking of cotton bolls - knitting - Spinning - weaving

  2. hand picking of cotton bolls - Ginning - Spinning - weaving

  3. hand picking of cotton bolls - weaving - Spinning - Ginning

  4. hand picking of cotton bolls - Spinning - Ginning - knitting


Correct Option: B
Explanation:

The process involved in making cotton fabric from cotton is: 

Hand picking of cotton bolls $\rightarrow$ Ginning $\rightarrow$ Spinning $\rightarrow$ Weaving.

Which of the following is the process of ginning?

  1. The process of turning cotton mass in yarn

  2. The process of combining two sets of yarn

  3. The process of removing cotton seeds from bolls

  4. The process of making yarn from fiber


Correct Option: C
Explanation:

Ginning is the process of removing cotton seeds from cotton bolls by combing. 

Interlooping of yarn is called _________

  1. Knitting

  2. Ginning

  3. Weaving

  4. Spinning


Correct Option: A
Explanation:

Knitting is interlooping of yarn . You may have seen your grandmother making an sweater with the help of needles.That process is known as knitting .Here the fabric is manufactured with the help of the loops.
Hence option A is correct.

Spinning is ______

  1. the process of making yarn from fiber

  2. the process of removing cotton seeds from cotton pods

  3. the process involves pulling and twisting of a fibre

  4. both A and B


Correct Option: A
Explanation:

Spinning is the process of making yarn from fiber.

Hence,
option $A$ is the correct answer.

The process in which the interlacement of warp and weft yarn takes in a suitable machine is called :

  1. spinning

  2. ginning

  3. weaving

  4. knitting


Correct Option: C
Explanation:

Weaving is primarily done by interlacing two orthogonal sets (warp and weft) of yarns in a regular and recurring pattern.
Hence option C is correct.

In knitting, two sets of yarn are used to make a piece of fabric.

  1. True

  2. False


Correct Option: B
Explanation:

In knitting, a single yarn is used to make a piece of fabric.

The ginning of cotton is the process of separation of fibres from the seeds by combing.

  1. True

  2. False


Correct Option: A
Explanation:

The ginning of cotton is the process of separation of fibres from the seeds by combing.
From the bolls, cotton is usually picked by hand. Fibres are then separated from the seeds by combing. This process is called ginning of cotton.

Removal of seeds from cotton fibre is called

  1. Ginning

  2. Spinnig

  3. Knitting

  4. Weaing


Correct Option: A
Explanation:

After harvesting the cotton seeds with cotton balls form the crop. The seeds are removed from cotton. This process is called ginning.

Hence option A is correct.

Wrap yarn consists of:

  1. Only two ends

  2. Multiple ends

  3. Single End

  4. No end


Correct Option: C
Explanation:

Warp Yarn is that kind of yarn from which we can get multiple ends of yarn from a given package. While the wept yarn is that in which we have a single end . The end means thread-like thing. ie from a package of warp we can unwind multiple threads at a time while not in case of wept.

Hence, the correct option is $\text{C}$

The process of extracting fibers from cotton seeds in preparation for making yarn includes ginning, carding, and combing.

  1. True

  2. False


Correct Option: A
Explanation:

True, 

Ginning is a process in which cotton fibre is separated from cotton seeds. Carding is a mechanical process that disentangles, cleans and intermixes fibres to produce a continuous web or sliver suitable for subsequent processing. This is achieved by passing the fibers between differentially moving surfaces covered with card clothing. 
After this, cotton is combed when it is to be used for quality fabric with high thread counts. In general, combing is done to filter or sieve out any short length fibers (for example, fibers shorter than 21 mm).

The process of formation of yarn from the unseeded cotton fibre is called as:

  1. Spinning

  2. Ginning

  3. Weaving

  4. Knitting


Correct Option: A
Explanation:

The unseede cotton fibre got from the ginning process is subjected to spinning process to make it as yarn.The process of formation of yarn from the unseeded cotton fibre is called as spinning.
Hence option A is correct.

Weaving of yarn makes a piece of fabric.

  1. True

  2. False


Correct Option: A
Explanation:
Yes, the process of arranging two sets of yarns together to make a fabric is called weaving.

Yarn is spun thread used for sewing, weaving or knitting.

  1. True

  2. False


Correct Option: A
Explanation:

Spun yarns are long continuous length of interlocked fibers, suitable for use in the production of textiles, sewing, crocheting, knittingweaving, embroidery, and rope making. 


Thread is a type of spun yarn intended for sewing by hand or machine. 

Spun yarns can be made from a number of natural or synthetic fibers.

Therefore, option A is correct.

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