GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-III (NEW) EXAMINATION - SUMMER 2019
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Subject Code: 2132901
Subject Name: Textile Fibres
Time: 02:30 PM TO 05:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 | Define following: 1) Staple i) Filament 1i1) Yarn | MARKS 03 |
| Q.2 | Write in short on fibre length and values of same for different fibres. | 04 |
| Q.3 | Give a detailed classification of textile fibres with chemical names wherever possible. | 07 |
| Q.3 | What is meant by fineness of the fibre? Provide values for fibres from natural origin. | 03 |
| Q4 | Give differences between addition and condensation polymerization. | 04 |
| Q4 | Write a note on desirable properties of textile fibers. | 07 |
| OR | ||
| Q.5 | Write on advantages and disadvantages of natural fibres. | 07 |
| Q.5 | Define: Mature, Immature and Dead cotton fiber. | 03 |
| Discuss on crystalline and amorphouros region of fiber. | 04 | |
| Write a note on BT and organic cotton fiber. | 07 | |
| OR | ||
| Give differences between melt, dry and wet spinning. | 03 | |
| Briefly write on electrospinning and nano fibres. | 04 | |
| Write in detail on different types of wool. | 07 | |
| Which process parameters are important during production of viscose fibres? | 03 | |
| State advantages and disadvantages of manmade fibers. | 04 | |
| Explain the cultivation process of silk fibre. | 07 | |
| OR | ||
| Write a note on application of jute fiber. | 03 | |
| Differentiate between viscose rayon, polynosic and HWM rayons. | 04 | |
| Explain the manufacturing process of nylon fiber. | 07 | |
| Write only the chemical reaction for two types of polyamide fibres. | 03 | |
| Give physical and chemical properties of polyester fiber. | 04 | |
| Explain the manufacturing of polyester fiber. | 07 | |
| OR | ||
| Write a note on hemp fiber. | 03 | |
| Give physical and chemical properties of cotton fiber. | 04 | |
| Explain fine structure of cotton fiber in detail. | 07 |
Date: 04/06/2019
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Total Marks: 70
This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University
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