Fundamentals of Textiles — DU B.Sc. (Prog.) Home Science Previous Year Question Papers

Answer five questions in all. 1. Briefly explain any five of the following terms: 5×2=10 (a) L.S. and C.S. of cotton (b) Yarn twist (c) Amorphous regions (g) Degree of polymerization. (a) Explain the construction, characteristics and variations of twill weave. Support your answer with suitable point paper diagrams. 15 (b) What are preparatory finishes? Write a short note on any one preparatory finish. 2,3 3. Describe the production and properties of Rayon fibre. 20 (a) Explain the cotton spinning system in detail with the help of suitable diagrams. 15 (b) Explain the characteristics of any two weft knitting structures. 5 5. (a) Describe complex yarns and their types. Support your answer with suitable illustrations. 10 (b) Describe the production process, properties and uses of woolen felts. 10 6. Write short notes on any four of the following 4x5=20 (a) Primary properties of textile fibres - (b) Properties of silk fiber (c) Satin Weave (d) Fibre stage dyeing (e) Indirect system of yarn count. (e) ¡ see see (Indie count) I 7. Differentiate between any four of the following : 4×5=20 (a) Woven and knitted fabrics (b) Woolen and worsted yarn (c) Direct and Discharge style of printing (d) Melt spinning and Dry spinning process (e) Block and Screen Printing.