Name of the College : Mahatma Gandhi University
Department : Polymer Engineering
Subject Code/Name : PO 010 805 G01/FIBRE TECHNOLOGY
Sem : VIII
Website : mgu.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/4994-PO%20010%20805%20G01%20FIBRE%20TECHNOLOGY_ELECTIVE-IV_%20_PO_.pdf
Fibre Technology Model Question :
MAHATMA GANDHI UNIVERSITY
POLYMER ENGINEERING
VIII SEMESTER B.TECH DEGREE EXAMINATION
Related : MGU PO010804L01 Adhesive Technology B.Tech Model Question Paper : www.pdfquestion.in/4993.html
Time :3 hrs
Maximum Marks : 100
Part A :
(Answer all the questions
Each question carries 3 marks)
1 What is tenacity? How is it expressed?
2 How does molecular orientation affect the strength of fibers?
3 Give the characteristics of nylon
4 What do you mean by bonding and weaving?
5 Give an account of properties of yarns.
(5X 3= 15)
Part B :
(Answer all the questions
Each question carries 5 marks)
6 What are various fibers used in rubber industry? Mention the characteristics of any two
7 Explain any two methods of determination of fiber structure.
8 Write short note on dyeing of fibers.
9 Explain the terms:-
(a) Spinning (b) Knitting
10 Explain the following terms
(a) Friction (b) twist
(5 X 5 = 25)
Part C :
(Answer all the questions
Each question carries 12 marks)
11. (A) Discuss the uses of fibers in polymer industry
OR
(B) Discuss the present status and future prospects of fiber manufacturing industries in India
12. (A) Discuss the uses of the following natural fibers:-
(i) Flax (ii) Jute (iii) Cotton (iv) Silk (v) Linen (vi) Coir
OR
(B) Explain the mechanical, electrical and optical properties of fibers
13. (A) How polyesters are made? Discuss the properties of ester based fibers
OR
(B) Discuss the production, properties and uses of aramid fibers
14. (A) Discuss the spinning and drawing of fibers
OR
(B) Write notes on:-
(i) Lacing (ii) Felting (iii) Spinning of cotton yarns and blends
15. (A) Explain the following yarn properties:-
(i) Fatigue (ii) Evenness (iii) Appearance (iv) Abrasion
OR
(B) Explain the following fabric properties:-
(i) Abrasion resistance (ii) Air permeability (iii) Thermal properties (5 X 12 = 60)
Model Question Paper :
VI Sem. B. Tech. Polymer Engineering Degree Examination
Mahatma Gandhi University
PO 010 605 : Polymer Blends and Composites
Time : 3Hours
Maximum Marks : 100
Part A :
(Answer all questions)
(Each question carries 3 marks)
1. What are the thermodynamic criteria for miscibility in a polymer blend system
2. Briefly explain the molecular architecture and properties of styrene block copolymer based TPEs
3. Name three commercially important matrices and reinforcements in composite manufacturing
4. Briefly mention on polymer concrete
5. Mention the advantages and disadvantages of hand lay up
(3×5 =15)
Part B :
(Answer all questions)
(Each question carries 5 marks)
6. Based on miscibility, how polymer blends are classified. Explain the morphology of each with examples
7. What is dynamic vulcanization? With example, discuss the properties of dynamically vulcanized blends
8. Briefly explain the rule of mixtures in composites
9. Briefly explain on polymeric binders used in rocket propellants
10. What is meant by filament winding (5×5 =25)
Part C :
(Answer either a OR b)
(Each question carries 12 marks)
11(a) (i) Explain in detail the various methods of preparing polymer blends
(ii) Discuss on any one technique for characterizing polymer blends
OR
(b) (i) Explain on the specific interactions present in polymer blends
(ii) With neat sketch, explain the phase separation phenomena
12(a) Discuss on the basic structure, manufacture, morphology and applications of thermoplastic
polyurethane elastomers
OR
(b) Write notes on (i) ionic TPEs (ii) silicone based TPEs
13 (a) What are composites? What are the advantages of composites over traditional engineering
materials? Explain the role of matrix and reinforcement in composite technology
OR
(b) Write notes on
(i) factors affecting the performance of composites (ii) bonding agents
(iii) critical fibre length
14(a) What is the composition of glass? Explain the production of glass fibre. What are the different
types and its important properties.
OR
(b) Write notes on
(i) carbon fibre (ii) aramid fibre (iii) Polymer concrete
15(a) With a neat sketch, explain filament winding process. Mention the applications
OR
(b) Write notes on
(i) vacuum bag moulding (ii) pultrusion (iii) RRIM