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Seat No.: Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-V (NEW) EXAMINATION - WINTER 2018
Subject Code:2152901 Date:27/11/2018
Subject Name:Yarn Manufacturing-II1
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
MARKS
Q.1 (A) What Are The Objects Of Ring Frame Machine 3
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(B) Write On The Difference Between Dry And Wet Doubling Systems. 4
(C) Draw Passage Of Yarn & Explain The Function Of Each Part Of The 7
Ringframe Machine
Q.2 (A) What Is The Role Of Traveller, Name Different Type Of Traveller 3
(B) Explain The Construction Of The Spindle At Ring Frame. 4
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(C) Explain Spinning Geometry With A Neat Sketch. 7
OR
(C) Which Factors Contribute To The Balloon Collapse On A
Ringframe? State Different Ways Adopted To Minimize It On 7
Modern Ring Frames And Mention Their Benefits And Limitations.
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Q.3 (A) What Is S Twist And Z . Twist Yarn And How To Adjust It On 3
(B) Discuss The Significance Of Traveller Mass. 4
(C) What Is Compact Spinning? How It Gives Value Addition To Quality. 7
OR
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Q.3 (A) What Is The Importance Of Spacer Bar 3
(B) Write Short Note About Creel Of Ring Frame Machine. 4
(C) Explain With Neat Sketch Of Mechanism Used For Building The Cop. 7
Q.4 (A) Discuss The Importance Of Anti Wedge Ring. 3
(B) Discuss Manufacture Of Two-Colour Spot Yarn. 4
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(C) Describe The Methods Of Manufacture Of Snarl Yarns, Loop Yarns 7
And Two Colour Flake Yarns.
OR
Q.4 (A) Give The Formula For Calculation Of Production In Kgs For
Ringframe Machine. 3
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(B) What Is Cable Yarn? Discuss The Method Of Production Of 6-Cord 4
Weaving Thread With Necessary Particulars.
(C) Discuss In Brief About Reducing End Breakages In Ring Frame. 7
Q.5 (A) Give The Characteristics Of A Good Ring. 3
(B) Discuss The Methods Of Maintaining Uniform Yarn Tension At Ringframe 4
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(C) Write On The Concept Of Autodoffing Employed On Ring Spinning Machine 7
OR
Q.5 (A) State The Limitations Of Ring Doubling Systems 3
(B) Explain How Two For One Twisting Is Advantageous Over Ring Doubling. 4
(C) Name Different Types Of Spindle Driving Systems Used On 7
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Ringframe And Write Briefly On Each.--- Content provided by FirstRanker.com ---
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