Download GTU BE/B.Tech 2019 Winter 3rd Sem New 3132107 Introduction To Materials Engineering Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 3132107 Introduction To Materials Engineering Previous Question Paper

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

BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 3132107 Date: 3/12/2019

Subject Name: Introduction to Materials Engineering
Time: 02:30 PM TO 05:00 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) Differentiate between metallurgy and material science. 03
(b)
What do you mean by technological properties? List the properties . and
explain any two in detail 04
(c)
List the criteria for selection of an engineering materials. Explain any
three in detail 07

Q.2 (a) Differentiate between ductility and malleability. 03
(b) Diferentiate between stress and strain. 04
(c) write short note on Rolling. 07
OR
(c) Distinguish between the properties of ceramics, metals and plastics 07
Q.3 (a) Suggest combination of properties required for the following
objects
1.Hammer 2.Al wire 3. Gold ornaments 4. Copper wire for
electrical cable
03
(b)
Differentiate crystalline and non-crystalline materials
04
(c)
Calculate the atomic radius of Simple cubic,FCC and BCC structure
07
OR
Q.3 (a) Draw the schematic figure of extrusion process. 03
(b)
Differentiate the edge dislocation and screw dislocation
04
(c) What do you mean by imperfection in crystals? Explain briefly the
different types of crystal imperfections
07
Q.4 (a) Write different steps of investigation of material failure. 03
(b) What is casting? Write different steps of production of foundry. 04
(c) Select the material for making handle of screw driver and justify
the selection of material in context of properties requirement.
according to application
07
OR
Q.4 (a) Being human of 21
st
century it is difficult to survive without
metals/materials. Justify the statement.
03
(b) List the advantages and limitation of powder metallurgy. 04
(c) State the role of metallurgy Engineer in industries. List out various
metallurgical industries in India.
07
Q.5 (a) Differentiate between soldering and brazing. 03
(b) State different welding techniques used for fabrication work 04
(c) What is welding? Explain SMAW in detail. 07
OR
Q.5 (a) List the characteristics of brittle failure in metal alloys. 03
(b) Write brief note on forging. 04
(c) Write short note on deep drawing operation. 07

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