Level-2 2016 examination on Textile Fibre: Man Made Fibre (WPE-245), containing two complete papers. BUTEX affiliated colleges students answered on spinning systems, viscose and modal production, acetate fibres, and polyester chemistry.
Q1
Level-2 Term-1, Final Exám-2016
Subject: Textile Fibre: Man Made Fibre (WPE-245)
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) Explain why man made fibre is going to be more popular than natural fibre?
(b) Discuss the classification of man made fibre.
(c) Describe the key properties of man made fibre.
[5.5+5+7=17.5]
2. (a) State filament and staple fibre.
(b) What are the additives? Write the classification of additives.
(c) What are the procedures required for manufacturing, synthetic fibre? Shortly discuss the wet spinning process with suitable sketch.
[3+5+9.5=17.5]
Q2
Level-2 Term-II, Final Exám-2016
Subject: Textile Fibre: Man-Made Fibre, Subject (Code: WPE 245)
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) Describe the wet spinning methods for synthetic fibre production with sketch.
(b) How man-made fibre can be modified during spinning? Explain with examples.
(c) Write the classification of man-made fibre.
(d) What is spinneret? Draw the different holes used in spinneret.
[7+4+3+3.5=17.5]
2. (a) Define primary and secondary acetate.
(b) What are the raw materials and chemicals needed for producing acetate and triacetate?
(c) State the manufacturing process of cellulose acetate fibre with flowchart.