GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
Subject Code: 2182902
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VIII (NEW) EXAMINATION — WINTER 2018
Subject Name: Process & Quality Control in Weaving
Time: 02:30 PM TO 05:00 PM
Date: 29/11/2018
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Give ATIRA’s recommendations for uniformity of Dent spacing in reed. | 03 |
| (b) State the importance of Quality of knots ? Which are suitable for cotton & polyester blend yarns ? How knots are dangerous ? | 04 | |
| (c) Which are the factors affecting loom efficiency ? Suggest the correct method for the calculation. | 07 | |
| Q.2 | (a) State the functions of Grey Inspection Department in weaving. | 03 |
| (b) How the package faults wild yarn & chaffed yarn occurs? | 04 | |
| (c) Explain the effect of immersion roller, squeezing roller & size-paste level on average size pick-up ? --- Content provided by FirstRanker.com --- ORState the causes of weft breaks on loom & suggest it’s remedies. | 07 | |
| Q.3 | (a) What it means by “ Machinery Audit “? | 03 |
| (b) What are the steps would like to take to minimize the end breakage rate at Pirn winding ? | 04 | |
| (c) Discuss in detail about Reed marks & Patti along with it’s causes and remedies. OR How one can control the Hard Waste in weaving department? | 07 | |
| Q.4 | (a) Describe about Single Moti- a fabric defect. | 03 |
| (b) Discuss on control of yarn stretch at sizing | 04 | |
| (c) Briefly explain about Process type hard waste. | 07 | |
| Q.5 | (a) What are the causes of low-productivity at Warping ? | 03 |
| (b) Discuss in detail about”Jerki & Temple marks along with it’s causes and remedies. OR --- Content provided by FirstRanker.com --- State the formula of Clearing efficiency & Knot factor of slub catcher. | 04 | |
| (c) Explain any two factors helps to minimize end breaks at warping. Give causes & remedies of Weft bar and Furkies fabric damage. | 07 | |
| Q.5 | (a) How the Reed parameters effect on weaving performance? | 03 |
| (b) Discuss any two factors plays important role for improving the Quality of Warping beams. | 04 | |
| (c) ‘Unwinding tension at winding is considered as an important parameter.’- Justify. OR Briefly explain methodology of direct process control. | 07 | |
| (a) Discuss the role of slub-catcher for efficient removal of yarn faults. | 03 | |
| (b) Write a note on fabric defects- Lashing-In and Chira. | 04 |
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