Fibre and Yarn Testing exam (YE 201) from BUTEX affiliated colleges' 2024 Level-2 Term-I finals. Questions include moisture regain-content relations with numericals, maturity ratio proofs, zoning technique, Beesley balance, twist calculations, and HVI advantages.
Level-2 Term-I, Final Exám-2024
Subject: Fibre and Yarn Testing (Code: YE 201)
Time: 3.0 Hrs. Full Marks: 72
(Use separate answer script for Part: A and Part: B)
(All parts of a question must be answered consecutively)
Part: A
(Answer any three questions)
1. (a) Define testing. Mention the objectives of textile testing.
(b) Establish a relationship between moisture regain and moisture content.
(c) A skein of fibre weighs 105 grains. After heating at 105° for 20 minutes, the weight of the sample reduced to 80 grains. Find out moisture content and moisture regain of the sample.
[4+5+3 = 12]
2. (a) Define degree of cell wall thickening. Mention the importances of fibre fineness.
(b) Prove that maturity ratio is between 0.2 to 1.2.
(c) Establish the relation,