CHEMISTRY NINJA'S

Which one of the following is a synthetic fibre?

• Nylon

• Rayon

• Polyester

• All of these

Which is a natural fibre?

• Silk

• Nylon

• Rayon

• All of these

The clothes are made up of thinner and thinner strands called

• yam

• thread

• fibre

• fabric

Separation of fibres of cotton from its seeds is known as

• weaving

• spinning

• knitting

• ginning

Jute fibres are obtaine from

• stem of jute plant

• seeds of jute plant

• fruit covering of jute plant

• roots of jute plant

Number of yams used to make fabric by weaving and knitting are

• two sets of yams in each case

• single yam in each case

• two sets of yams in weaving and single in knitting

• single yam in weaving and two sets in knitting

Weaving of fabric is done in

• handlooms

• power looms

• both (a) and (b)

• takli

Which one is spinning device?

• Takli

• Loom

• Charkha

• Both (a) and (c)

Which of the following is a plant fibre?

• Wool

• Silk

• Cotton

• Nylon

The right time to cut jute plants is

• matured stage

• before flowering stage

• flowering stage

• any time after flowering