I Sem B.sc - Fashion and Apparel Design - Question Paper 2011

I Semester B.Sc (FAD) Examination, October / November 2011
(N.S.) (Semester Scheme) (2011-12Batch)
Fashion and Apparel Design
FAD103: FIBER AND YARN SCIENCE

Time :3 hours                                                           Max. Marks:70

All Section are compulsory . illustrate wherever necessary.

SECTION – A

I. Write short answers: (9x2=18)

1) Define fiber and yarn?
2) Name any four natural fibers?
3) Define crystallinity and amorphous regions?
4) Are cotton fibers prone to pilling? Give reason?
5) Draw the longitudinal view and cross sectional view of silk?
6) Name the solvents that dissolve:
a) Polyester
b) Cotton
7) Mention the density of cotton and nylon?
8) What are the objective of blending?
9) What are alternating copolymers? Give examples?

SECTION – B 

II. Write notes on the following (any four): )4x5=20)

1) Discuss the merits and demerits of natural fibers over man made fibers?
2) What are the requirements of fier forming polymers ? explain
3) Mention the physical properties of cotton?
4) Write the burning characteristics of wool and nylon?
5) Compare ring spun yarn and rotor spun yarn?
6) Write the uses oh hemp, polyester and polyester fibers?

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