Fibre to Fabric NCERT Solutions

9/13/2015 CBSE



Fibre to Fabric questions


1:�Classify the following
fibres as natural or synthetic:Nylon, wool, cotton, silk, polyester, jute


Answer:Let us first understand
natural and synthetic fibres. Natural fibres are those which are obtained
directly from nature, i.e. from plants and animals. Synthetic fibres are the
man-made fibres. The given types of fibres now easily be classified as
following:


  • Nylon � Synthetic fibre� as chemically made
    by man
  • Wool � Wool is naturally obtained from
    sheep, i.e. animal and hence it is natural fibre
  • Cotton � It is naturally grown on plants,
    it�s a natural fibre
  • Silk � Naturally obtained from animals, i.e.
    silkworms, so silk is a natural fibre
  • Polyester � These are synthetically prepared
    by man so it comes under synthetic fibre.
  • Jute � Natural fibre as obtained from plants

2:�State whether the following
statements are true or false:


1.� Yarn is made from fibres.


2.� Spinning is a process of making fibres.


3.� Jute is the outer covering of coconut.


4.� The process of removing seed from cotton is
called ginning.


5.� Weaving of yarn makes a piece of fabric.


6.� Silk fibre is obtained from the stem of a
plant.


7.� Polyester is a natural fibre.


Answer:


1.� True


2.� False ; Spinning is process for making yarn


3.� False ; Jute comes from Jute plant


4.� True


5.� True


6.� False ; Silk is obtained from silk worm,
i.e. animal


7.� False ; polyester is prepared chemically,
it�s a synthetic fibre


3:�Fill in the blanks:(a)
Plant fibres are obtained from�________�and�________(b) Animal
fibres are�________�and�________


Answer:


(a) Stems and Fruits


(b) Silk and Wool


4:�Cotton and jute are
obtained from which parts of plants?


Answer:


  • Fruits (cotton balls) of cotton plants
    produces�cotton fibres.
  • Jute fibres are obtained from the stem of
    jute plants.

5:�Name two items that are
made from coconut fibre.


Answer:We can make brooms and
mattresses from coconut fibre.


6:�Explain the process of
making yarn from fibre.


Answer:The process of making
yarn from fibres is called as spinning. In this process, fibres from a mass of
cotton wool are drawn out and twisted. This brings the fibres together to form a
yarn.




Similar Post You May Like