Friday, July 10, 2015

Mahatma Gandhi University B.Tech Production Engineering composite materials and manufacturing Question paper 2014

University: Mahatma Gandhi University
Course: B.Tech
Subject : composite materials and manufacturing
Year of Question Paper : 2014

B.TECH DEGREE EXAMINATION, MAY 2014
Eighth Semester
Branch: Production Engineering
PE 010 801 - COMPOSITE MATERIALS AND MANUFACTURING
MODEL QUESTION PAPER
(Regular-New Scheme-2010)
Time: Three Hours Maximum: 100 marks

Part A
Answer all questions
Each question carries 3 marks

1. Give a brief historical review of composite materials?
2. Epoxy is most common type of matrix material. Why?
3. What are the applications of metal matrix composites?
4. What is ceramic matrix composite? What are their advantages?
5. What is role of plasma coating in composite?
(5 X 3 = 15 marks)

Part B
Answer all questions
Each question carries 5 marks

6. Write the conventional fabrication procedure for glass fibers?
7. Make a comparison between thermoplastic and thermosets?
8. What is metal matrix composite? What are their advantages?
9. Give a short note on reaction bonding process?
10. Give a short note on welding of thermoplastic?
(5 X 5 = 25 marks)

Part C
Answer any one full question from each module
Each full question carries 12 marks

11. (a) What is a composite? How are composite classified?
(b)What are the advantage, disadvantage and application of composite materials?
Or
12. (a) What are boron fibers? Write the process for fabrication of boron fibers? Write its
applications?
(b) What are aramid fibers? Write the process for fabrication of aramid fibers? Write its
applications?

13. What are whiskers? Write the process by which whiskers are produced and its applications?
Or
14. Give notes on
(a) Pultrusion
(b) Diaphragm forming
15. Explain the following
(a) Duralcan process
(b)Squeeze casting
Or
16. Give notes on
(a) Diffusion bonding
(b) In situ process

17. Describe two manufacturing methods of ceramic matrix composite?

Or
18. Explain the following
(a) Liquid phase sintering
(b) Self propagating high temperature synthesis
19. Explain the post processing operations in composite materials?
Or
20. Give notes on
(a) Ultrasonic welding
(b) Laser machining
(5 X 12 = 60 marks) ..

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