Understanding Fabrics — DU B.A. (Prog) Apparel Design & Construction as Major Previous Year Question Papers

The question paper is divided into two parts — Part A and Part B. Both Part A and Part B have to be written in the same answer sheet. 1. Explain any 6 of the following, terms in 1-2 sentences: *% 1x6-6 (i) Staple fibres < 4! : - (iii) Combing (u) Protein fibres (vil) Grain. 2. State whether the following statements are True or False: * : 1x6=6 (i) Singeing is used for whitening the fabric. • (i) Polyester fibre is self-extinguishing. (io) Silk is a filament.. (u):, Shuttle carries the Weft yarn in a loom. "(vi) Spot/Dot weave creates a diagonal pattern on the fabric surface. 3. Give two examples of each of the following : 2x3-6 (i) Natural fibres - (ii) Fancy weave (iii) Yarn defect:. = • 4. Briefly explain the various tests used for the identification of Nylon fibre. 6 5.' Define yarn count. Discuss the diřéct and indirect systems of yarn nümbering. . 6 6. Write about types of yarn-Single, Ply and.Corded: Also describe any 3 Complex 7. Differentiate between any two of the following : 6 (i) Wet Spinning and Melt Spinning (ii) Rib weave and Basket weave - (iti) Mechanical and Chemical Finish (iv) Carding and Combing. ". 8. Write note on any one of the following 6 (i) Dobby Weave (ii) Fancy yarns (tii) Origin of Textile Fibres. 9. Explain the construction, characteristics and variations of Twill and Satin weaves with suitable point paper diagrams. 20 10. Distinguish between Warp and Weft Knits. Explain characteristics of Knitted fabries in detail. Give examples of knitted fabrics and explain their types in detail. 11. Differentiate between routine and functional finishes. Discuss Mercerization and Scouring finishes in detail. 20 12. Discuss the significance of fabric inspection process. Describe in brief the 4-point system of fabric inspection systems. Explain AQL in detail. 20 13. Describe in detail the various parts of a loom and their functions. Also describe the primary and secondary motions of a loom. 20