Question

1. How can you distinguish between a silk and a cotton fibre?
2. Yarn, fabric and fibre are related to cach other. How?​

Answer 1

Answer:

Silk is a natural, strong fibre as it has great tensile strength, which allows it to withstand a great deal of pressure. Cotton is also a strong fibre but the strength is largely affected by moisture, as its wet strength is 20% (much higher than dry strength).

Fabrics are made from yarns and fibres. Fabrics may be made by a variety of processes including weaving, knitting, knotting and twisting yarns together and by bonding fibres together. Yarns are made from fibres, and fibres may be natural such as cotton and wool, or man-made such as acrylic and polyester.

Answer 2

1.Silk is a natural, strong fibre as it has great tensile strength, which allows it to withstand a great deal of pressure. Cotton is also a strong fibre but the strength is largely affected by moisture, as its wet strength is 20% (much higher than dry strength).

2.Yarn, fabric and fibres are related to each other. ... (a) Silk is a plant fibre. (b) Jute is obtained from the leaves of a plant. (c) Weaving is a process of arranging two sets of yarn together.