GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- III (New) EXAMINATION — WINTER 2019
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Subject Code: 2133403 Date: 30/11/2019
Subject Name: Engineering Materials and Metallurgy
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Define: 03
- Solid Solution
- Substitutional Solution
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(b) Explain Development of microstructures in Iron- carbon alloys 04
(c) Explain Iron-Iron carbide equilibrium diagram in details 07
Q.2 (a) Describe Jominy end quench test. 03
(b) Write a short note on CCT cooling curves. 04
(c) Explain Principle, methods and advantages of induction hardening with neat sketch. 07
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OR
(c) Explain Principle, methods and advantages of Flame hardening with neat sketch. 07
Q.3 (a) Write down the classification of steels 03
(b) Write a short note on Copper alloys with application 04
(c) Explain Various Titanium Alloys and their applications. 07
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OR
Q.3 (a) Write down applications of nickel and its alloys 03
(b) Write a short note on Aluminum and its alloys with application 04
(c) Explain Cobalt alloys with properties and applications. 07
Q.4 (a) Differentiate Metal and Non-Metallic Materials 03
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(b) Differentiate Commodity Plastics and Engineering Plastics 04
(c) Explain Nano-materials with properties and some application 07
OR
Q.4 (a) Describe Non-Metallic Materials. 03
(b) Differentiate thermosetting and thermoplastics polymers with application. 04
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(c) What is Bio-Degradable Plastics and explain the Bio-Degradation Plastics. 07
Q.5 (a) Define: 03
- Modulus of Elasticity
- Plastic Deformation
- Hardness
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(b) Write a short note on Creep Tests 04
(c) Differentiate tension test and Compression test with neat diagram also write a short note on impact test 07
OR
Q.5 (a) Define: 1) Creep 2) Toughness 3) Ductility 03
(b) Write a short note on Tension Tests 04
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(c) Define fatigue, & write down importance of fatigue test? Also, explain fatigue test theory. 07
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