Textile Science — DU B.Sc. (Hons.) Home Science Previous Year Question Papers

1. Briefly explain any Six of the following terms: (3x6=18) i. Shuttle ii. Crystalline arrangement af polymers iii. Textured yarns iv. Types of polymerisation v. Direction of twist in yarns vi. Simple yarns vii. Protein Fibres viii. Knitting needles 2(a) Explain in details the steps that fibres undergo in cotton spinning system as they get converted to a yarn. (10) (b) Define yarn count. Discuss the various systems used to determine yarn count. (8) 3(a) Give a flowchart for the production of viscose rayon and explain the steps in details. (8) (b) Discuss the primary motions of a loom. (5) (c) Draw the microscopic view of Cotton and polyester fibres. (5) 4(a) Enumerate different parts of a loom and explain their functions? Support your answer with suitable illustrations. (8) (b) What are preparatory finishes? Briefly explain any two types of preparatory finishes for cotton fabric (5) (c) Write a short note on sericulture (5) 5(a) Classify weaves. Give an account of twill weaves in details. (10) (b) What are non-wovens? Discuss the production of needle punched non wovens. (8) 6. Differentiate between any three of the following. (6x3=18) i. Resist and Discharge style of printing ii. Primary and Secondary properties of textile fibres iii. Spun yarn and Filament yarn iv. Melt and Dry spinning v. Warp and Weft Knit fabrics 7. Write short notes on any three of the following. (6x3=18) i. Production and processing of wool fibre ii. Methods of printing ili. Types of retting iv. Classification of textile fibres with examples v. Stages of dyeing