Download GTU BE/B.Tech 2019 Summer 8th Sem New 2182901 Principles Of Textile Processes Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2182901 Principles Of Textile Processes Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2182901 Date:15/05/2019

Subject Name:Principles of Textile Processes

Time:10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Explain The Importance Of Size Pick Up. 3
(b) Write Short Note On Power Required For Picking. 4
(c) Explain Foster Theory Of Perfect Drafting. 7

Q.2 (a) Explain The Significance Of Fiber Acceleration Behind Top Comb. 3
(b) Explain Only Procedure To Find Out Transfer Efficiency. 4
(c) Derive An Equation For Traveler Speed. 7
OR
(c) What Are The Reasons Of End Breaks At Ring Frame? Discuss. 7
Q.3 (a) What Is Cleaning Efficiency Of Blow Room? 3
(b) Discuss The Factors Affecting Drafting Force. 4
(c)
Define Transfer Ratio And Residual Ratio. Derive An Equation To Find Transfer
Ratio Of Card.
7
OR
Q.3 (a) State The Limitations Of Negative Friction Type Let Off Motion. 3
(b) Why Perfect Drafting Is Not Achieved In Conventional Draw Frame? 4
(c)
Derive The Formula For Friction Forces In Negative Let Off Motion Also
Discuss Design Of Let Off Mechanism.
7
Q.4 (a) State The Configuration Of Fibers In Card Sliver. 3
(b) Discuss The Factors Affecting Drafting Force. 4
(c)
Derive An Equation Of Yarn Tension At Any Radius ?R?
7
OR
Q.4 (a)
Write The Various Factors Affecting Motion Of Sley.
3
(b) Derive Equation Of Winding Tension (Tw) In A Spinning Balloon Zone. 4
(c)
Discuss The Importance Of Size Pick.
7
Q.5 (a) Explain ?Alacrit? With Respect To Picking Mechanism 3
(b) Discuss Interrelationship Between Shedding And Beat Up Briefly. 4
(c)

Derive An Equation For Sley Velocity With Necessary Assumptions And Draw
The Curve.
7
OR
Q.5 (a) Is The Acceleration Of Shuttle Uniform? Why? 3
(b)
State The Types Of Stretch In Sizing And Factors Affecting It.
4
(c) Explain Briefly Power Required For Picking. 7

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