Download GTU B.Tech 2020 Winter 5th Sem 3152909 Fabric Formation Iii Question Paper

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BE- SEMESTER-V (NEW) EXAMINATION — WINTER 2020
Subject Code:3152909 Date:01/02/2021
Subject Name:Fabric Formation I1I
Time:10:30 AM TO 12:30 PM Total Marks: 56

Instructions:

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1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

Q.1 (A) Define nonwoven fabric. 3

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(B) Explain leno weaving principle 4
(C) With the help of neat diagram, explain the torsion bar mechanism of Sulzer projectile loom in detail. 7

Q.2 (A) Compare rigid rapier with flexible rapier loom. 3
(B) State and explain different ways of classifying rapier looms. 4
(C) With the help of neat diagram, explain double rapier tip transfer type weft insertion system in detail. 7

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Q.3 (A) What is braiding? Name different braiding technique. 3
(B) Discuss application of nonwoven fabric in Geotextiles 4
(C) Compare of different web bonding techniques. 7

Q.4 (A) Discuss application of nonwoven fabric in Automotive textiles. 3
(B) Define nonwovens. Give the sequence of operation followed for manufacturing of nonwovens. 4

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(C) Discuss importance of fibre orientation for nonwoven fabric. How to measure it. 7

Q.5 (A) State different types of weft accumulators used in shuttleless looms. 3
(B) Compare rigid rapier with flexible rapier loom 4
(C) With a neat diagram explain the operation of Weft supply system on Water jet weaving machine. 7

Q.6 (A) Draw a loom-timing diagram of air jet loom. 3

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(B) Explain weft insertion system of air jet weaving machine. 4
(C) What is leno selvedge? Explain the working of leno selvedge with neat diagram. 7

Q.7 (A) Discuss the application of nonwoven filters. 3
(B) Discuss the current market growth of nonwoven industry. 4
(C) Discuss the environmental application of nonwovens. 7

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Q.8 (A) State the effects which may be achieved by Mechanical Finishing 3
(B) Discuss 3D woven fabric manufacturing technique. 4
(C) Discuss the any one polymer lay processes carried out in the Nonwoven web formation. 7

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