Download GTU BE/B.Tech 2019 Winter 3rd Sem New 2132101 Elements Of Metallurgy Question Paper

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Enrolment No.

Subject Code: 2132101

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- III (New) EXAMINATION — WINTER 2019
Subject Name: Elements of Metallurgy
Time: 02:30 PM TO 05:00 PM
Total Marks: 70

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

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1. (a) Give classification of Engineering materials with examples. (03)
   (b) Define Toughness, Ductility, Malleability, hardness (04)
   (c) Explain the criteria for the selection of materials for engineering application. (07)
2. (a) Define metals and alloys. Classify them. (03)
   (b) Explain with stress-strain diagram plasticity and elasticity of metals. (04)
   

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   (c) What are the imperfections in crystals? Explain about point defect with figure. (07)
   OR
   (c) Compare and contrast edge dislocation and screw dislocation. (07)
3. (a) Define Ceramics. (03)
   (b) What is burgers vector? Explain the relationship between burgers vector and line vector. (04)
   

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   (c) Briefly explain about ceramic structures and properties. (07)
   OR
   (c) Define composite. Give classification of composite based on matrix constituents. (07)
4. (a) Give example of natural composites. (03)
   (b) Write a short note on cement and their products. (04)
   

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   (c) Define polymer. (07)
5. (a) Give classification of polymers. (03)
   (b) What is polymerization? List out different polymerization mechanism. Explain one of it. (04)
   (c) What is refractory? What are the properties of refractory? (07)
   OR
   

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   (c) List out the renowned metallurgical industries in different fields. (07)
6. (a) Discuss the different fields of metallurgy? What are the sources of metals? (03)
   (b) What is the principle of production of Iron? (04)
   (c) What do you mean by founding? Give classification of Foundry based on type of work. (07)
7. (a) What are the steps to be performed to produce casting in foundry? (03)
   

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   (b) What is rolling? Classify the rolling mills with neat sketch. (04)
   (c) Define welding. What is the basic difference between soldering and brazing? (07)
   OR
   (c) On which principle corrosion occurs on the metals? What are steps to prevent the corrosion? (07)
8. (a) Define wear. What are the types of wear? Explain briefly. (03)

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