Download GTU BE/B.Tech 2019 Winter 3rd Sem New 3132004 Principles Of Materials Science And Metallurgy Question Paper

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Subject Code: 3132004

GUJARAT TECHNOLOGICAL UNIVERSITY

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BE - SEMESTER- III (New) EXAMINATION — WINTER 2019

Subject Name: Principles of Materials Science and Metallurgy

Time: 02:30 PM TO 05:00 PM

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1

1. (a) Differentiate material science and metallurgy. (MARKS 03)
2. (b) Write a short note on Creep and Fatigue. (MARKS 04)

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3. (c) Describe material selection process for turbine blade. (MARKS 07)

Q.2

1. (a) Enlist three non-ferrous metals. (MARKS 03)
2. (b) What is APF and CN? State CN for BCC, SC and FCC unit cell system. (MARKS 04)
3. (c) What is the significance of crystallographic planes and directions? Enlist the steps to find out crystallographic planes within unit cell. (MARKS 07)

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OR

1. (c) Differentiate among single crystal and polycrystalline materials. Also explain isotropy and anisotropy of the materials. (MARKS 07)

Q.3

1. (a) Explain Bragg’s law for crystal structure determination. (MARKS 03)
2. (b) Explain jominy hardenability test. (MARKS 04)

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3. (c) Enlist and explain different point defects in metallic and ionic materials. (MARKS 07)

OR

1. (a) Define linear and planer density. (MARKS 03)
2. (b) Enlist the steps involved in liquid penetrant test. Explain each briefly. (MARKS 04)
3. (c) Give a detailed overview of ultrasonic testing method. (MARKS 07)

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Q.4

1. (a) Explain sintering process in power metallurgical process. (MARKS 03)
2. (b) Give the advantages and disadvantages of MPT. (MARKS 04)
3. (c) Explain the ductile and brittle failures with relevant diagram. (MARKS 07)

OR

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1. (a) What is the requirement of performing jominy hardenability test? (MARKS 03)
2. (b) Give brief overview of flame hardening process. (MARKS 04)
3. (c) Define hardness. Explain Rockwell hardness test in detail. (MARKS 07)

Q.5

1. (a) State Gibb's phase rule giving its significance in metallurgy. (MARKS 03)

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2. (b) Explain significance of TTT diagram. (MARKS 04)
3. (c) Enlist the various techniques for powder production. Explain any one with neat sketch. (MARKS 07)

OR

1. (a) Enlist the steps involved in micro examination of specimen. (MARKS 03)
2. (b) Draw and explain isomorphous binary phase diagram. (MARKS 04)

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3. (c) Draw iron-iron carbide equilibrium diagram with all necessary details. Briefly explain cooling of 0.8 % carbon steel. (MARKS 07)

Date: 3/12/2019

Total Marks: 70

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