Lakhmir Singh and Manjit Kaur Solutions for Chapter: Fibre to Fabric, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

X and Y are the two natural fibres. Both these fibres are obtained from the stems of their respective plants. The fibre X is a rough but strong fibre which is used for making ropes and gunny bags. On the other hand, fibre Y is comparatively much smooth fibre which is used to make linen cloth. Name the fibres X and Y. 
 

There are two pieces of fabrics labelled P and Q. Both these fabrics are subjected to burning test, one by one. Fabric P burns by giving the smell of charred meat whereas fabric Q burns by giving the smell of burning plastic. Fabric Q also melts and forms small beads on burning . 
(a) Which fabric is made of nylon? 
(b) Which fabric is made of silk? 

A and B are the two natural fibres. Fibre A is very soft and smooth which is separated from the seeds by the process C. Fibre A is used for making the wicks of oil lamps lit on Diwali. Fibre B is very rough which is present as an outer covering on the ripened fruit D which occurs mainly in coastal areas. Fibre B is also known by another name E. This fibre is used for making ropes and mats. 
(a) Name the fibre A. 
(b) What is the process C known as? 
(c) Name the fibre B. 
(d) What is the name of fruit D? 
(e) Write the name E. 

 

You are given two pieces of different types of fabrics which are labelled X and Y. Both the pieces of fabrics are burned, one by one. The fabric X burns vigorously giving a smell of burning paper whereas fabric Y burns producing a smell of burning hair. 
(a) Which fabric could be made of wool? 
(b) Which fabric do you think is made of cotton? 

The material P obtained from an animal's skin is converted into Q by a process R. Q is then made into a sweater by the technique S. What are P, Q, R and S ?