Textile Testing and Quality Control-I exam (YME 225) from BUTEX affiliated colleges' 2015 Level-2 Term-II finals, worth 105 marks. Questions cover standard moisture regain values, hygrometer working, micronaire relations, WIRA fineness, maturity ratio proofs, and Shirley trash analyzer.
Level-2 Term-II, Final Exám-2015
Subject: Textile Testing and Quality Control-I (Code: YME 225)
Time: 3.0 Hrs. Full Marks: 105
(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 standard moisture regain. Show the standard moisture regain of cotton, silk, polyester, nylon, wool and jute.
(b) Describe the effect of moisture on fibre properties.
(c) What are moisture regain, moisture content and invoice weight? State the relation between moisture content & moisture regain.
[4.5+7+6=17.5]
2. (a) Draw and describe the working principle of a device which calculates the relative humidity of atmosphere.
(b) What is CIW? State the importance of CIW in textiles.
(c) Calculate official allowance of a blended fibre of 65/35 cotton/polyester by assuming all necessary parameters.
(d) What is staple length and span length of a fibre?
[5.5+5+5+2=17.5]
3. (a) What is meant by Hair weight and Micronier value? Show the relation between them.
(b) What are the methods used for measuring the fineness of fibre? Describe the working principle of WIRA fineness meter with schematic diagram.
(c) Define specific surface and prove that specific surface where d = fibre diameter.