Download GTU BE/B.Tech 2019 Winter 3rd Sem New 2132004 Principles Of Materials Science And Physical Metallurgy Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 2132004 Principles Of Materials Science And Physical Metallurgy Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 2132004 Date: 3/12/2019

Subject Name: Principles Of Materials Science And Physical Metallurgy
Time: 02:30 PM TO 05:30 PM Total Marks: 70
Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Explain the need of material science in Engineering applications. 03
(b) Mention various polycrystalline and non-crystalline materials. 04
(c) Discuss the factors that are taken into consideration in selecting
materials for engineering application.
07

Q.2 (a) Derive Bragg?s Law. 03
(b) Draw a unit cells and show the following planes (1) 100 (2)111
(3) 112 (4) 001
04
(c) Draw and Explain iron ? iron carbide diagram. 07
OR
(c) Explain Eutectic, Eutectoid, Peritectic and Peritectoid Systems. 07
Q.3 (a) Ductile materials are tougher than brittle ones. Why? 03
(b) Differentiate between Micro Examination and Macro
Examination of Engineering Metallic Materials.
04
(c) What is the use of Jominy hardenability test? Explain in Detail. 07
OR
Q.3 (a) What is creep? Explain the factors affecting it. 03
(b) Differentiate crystalline and non-crystalline structure. 04
(c) Define heat treatment? Explain various stages of heat treatment. 07
Q.4 (a) Differentiate between carburizing and nitriding. 03
(b) Define the following properties of engineering materials.
(1) Stress (2) Strength (3) Ductility (4) Fatigue
04
(c) Explain TTT diagram with fully labeling. 07
OR
Q.4 (a) What is difference between Pre sintering and sintering? 03
(b) Give the overview of Hardening, tempering and normalizing
processes.
04
(c) Explain Gibb?s phase Rule. 07
Q.5 (a) Enlist the various techniques for powder production. Explain any
one with neat sketch.
03
(b) Write down comparison of destructive and non destructive test. 04
(c) Explain magnetic particle test with diagram. State its application. 07
OR

Q.5 (a) Define and explain annealing process. 03
(b) Explain the Principal of Ultrasonic Testing with neat sketch. 04
(c) What is powder metallurgy? Discuss advantages and
disadvantages of powder metallurgy techniques.
07

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