Download GTU BE/B.Tech 2018 Winter 6th Sem New 2162908 Modern Yarn Production Technologies Question Paper

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Subject Code: 2162908
Subject Name: Modern Yarn Production Technologies

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Time: 02:30 PM TO 05:00 PM

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (NEW) EXAMINATION - WINTER 2018
Date: 04/12/2018

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Total Marks: 70

Instructions:
Attempt all questions.

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Q.1 (A) Name The End Use Application Of Rotor Spun Yarns.
(B) Compare The Properties Of Air Jet Spun Yarn With That Of Ring Spun Yarn.
(C) Describe The Features Of Modern Rotor Spinning Machines.

Q.2 (A) Give The Advantages Of Siro Spun Technology.

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(B) Describe Rocos Spinning System Briefly With Neat Sketch.
(C) Discuss The Major Limitations Of Rotor Spinning Technology.
OR
(A) Write A Short Note On Siro Spinning System.
(B) Give The Name Of Different Types Of Rotor Groove.

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(C) Describe Parafill Spinning System With Neat Sketch.

Q.3 (A) With Neat Sketch The Working Of DREF2 Friction Spinning System.
(B) Give The Names Of Different Twistless Spinning Methods.
(C) Describe Bobtex Spinning System With Neat Sketch.

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OR
(A) Describe The Passage Of Material On Airjet Spinning System With A Neat Sketch.
(B) State The Classification Of Airjet Spun Yarn.
(C) Describe Wrap Spinning System With Neat Sketch.

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Q.4 (A) Is Condensed Spun Yarn Better Than Ring Spun Yarn? Explain With Different Arrangement Made On Drafting System.
(B) State Briefly The Disadvantage Of Condensed Yarn Spinning.
(C) Compare Airjet Spinning And Vortex Spinning.
OR
(A) Describe Basic Principle Of Yarn Formation Of DREF Spinning With Neat Sketch.

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(B) How Quality Of Yarn Will Be Influenced On Changing The Nozzle Air Pressure Of Air Jet Spinning Machine?

Q.5 (A) Describe Twistless Spinning System Working With Temporary Adhesion, With Neat Sketch.
OR
(B) What Is Peripheral Twist Extent In Rotor?

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(C) Explain Fibre Migration, A Min And PTE In Rotor Spinning System
(A) With A Neat Sketch, Describe The Principle Of Yarn Formation Of Murata Vortex Spinning.

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

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MARKS