GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University
Subject Name: Principles of Textile Processes
Time: 02:30 PM TO 05:00 PM
Date: 02/11/2017
Total Marks: 70
Subject Code: 2182901
GUJARAT TECHNOLOGICAL UNIVERSITY
--- Content provided by FirstRanker.com ---
BE - SEMESTER-VIII (NEW) EXAMINATION — WINTER 2017Subject Name: Principles of Textile Processes
Time: 02:30 PM TO 05:00 PM
Date: 02/11/2017
Total Marks: 70
--- Content provided by FirstRanker.com ---
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) What is perfect drafting? | 03 |
| (b) Why perfect drafting is not achieved in conventional draw frame? | 04 | |
| (c) Explain the retardation of shuttle with hinged swell, along with necessary diagrams. | 07 | |
| Q.2 | (a) Is the acceleration of shuttle uniform? Why? | 03 |
| (b) Discuss the important of size pick. | 04 | |
| (c) What is transfer efficiency of card? Explain only procedure to find out transfer efficiency. | 07 | |
| OR | ||
| (c) What is cylinder loading? Drive an equation to calculate cylinder loading. | 07 | |
| Q.3 | (a) Give the factors affecting drafting force. | 03 |
| (b) Explain the Foster’s theory for perfect drafting. | 04 | |
| (c) Derive an equation of yarn tension at any radius ‘r’ | 07 | |
| OR | ||
| (a) What is cleaning efficiency of blow room? | 03 | |
| (b) Explain the techniques to detect fiber configuration in card sliver. | 04 | |
| (c) Derive an equation for traveler speed. | 07 | |
| Q.4 | (a) Write the various factors affecting motion of sley. | 03 |
| (b) State the types of stretch in sizing and factors affecting it. | 04 | |
| (c) Discuss briefly various aspects of weft insertion in Airjet loom. | 07 | |
| OR | ||
| (a) State the limitations of negative friction type let off motion. | 03 | |
| (b) Explain briefly power required for picking. | 04 | |
| (c) Derive an equation for sley velocity with necessary assumptions and draw the curve. | 07 | |
| Q.5 | (a) Explain ‘Alacrit’ with respect to picking mechanism. | 03 |
| (b) What are the reasons of end breaks at ring frame? Discuss any two. | 04 | |
| (c) Derive an equation to calculate the fractional efficiency of comber. | 07 | |
| OR | ||
| (a) State the configuration of fibers in card sliver. | 03 | |
| (b) Discuss interrelationship between shedding and beat up briefly. | 04 | |
| (c) Discuss briefly effect of I/r ratio on type of movement to sley. | 07 |
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University
--- Content provided by FirstRanker.com ---