GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- ITI(OLD) EXAMINATION - SUMMER 2019
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Subject Code: 133403 Date: 07/06/2019
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) Sketch and explain the Iron — Iron Carbide equilibrium diagram. [07]
(b) Explain Nitriding process and state its advantages and disadvantages. [07]
Q.2 (a) Explain in brief about the TTT curve with neat sketch. [07]
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(b) Discuss in brief about effect of Mo, Mn and Si alloy addition on Steel. [07]
OR
(b) Define Constitution of alloy. Explain the isomorphism microstructural development with a neat sketch. [07]
Q.3 (a) Classify phase diagram. Draw and explain about cooling curve for pure metal. [07]
(b) How do you measure the hardenability of Steel by using Jominy end quench method with sketch? [07]
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OR
Q.3 (a) Write the procedure for measuring Hardness by using Rockwell Test with a sketch. [07]
(b) Explain in brief about Composite materials and its properties. [07]
Q.4 (a) What are case hardening and martempering treatments? What are their purposes? [07]
(b) Write short notes about Bio degradable materials and its advantages. [07]
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OR
Q.4 (a) Differentiate clearly between thermoplastics and thermosetting plastics with suitable applications and examples. [07]
(b) Write short notes about properties of ceramics materials. [07]
Q.5 (a) Explain in brief about Super conductors and its properties. [07]
(b) How to determine Creep limit by using Creep Testing Method with procedure. [07]
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OR
Q.5 (a) Write short notes on composition, properties and applications of austenitic stainless steel and high speed steel. [07]
(b) Write the stages of heat treatment process. Write short notes on Annealing. [07]
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