Download GTU BE/B.Tech 2018 Winter 5th Sem New 2152106 Physical Metallurgy Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2152106 Physical Metallurgy Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2152106 Date:27/11/2018

Subject Name:Physical Metallurgy

Time: 10:30 AM TO 01:00 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)
Write important features of Miller Indices.
03
(b)
Define Miller indices. Draw following planes in cubic system (123) (001) (100).
04
(c)
Draw Iron ?iron carbide equilibrium diagram indicating all important temps,
phases, and compositions.
07
Q.2 (a)
Draw following directions in cubic system [100] [010] [111]
03
(b)
State and explain the Hume Rothery rules of solid solution formation with
suitable example.
04
(c)
Explain the nucleation and growth mechanism for the solidification of metals.
07
OR
(c)
Calculate the atomic packing factor for BCC and FCC structure
07
Q.3 (a)
Give detail classification of steels.
03
(b)
Draw and briefly explain the Aluminum-Silicon binary phase diagram.
04
(c)
Explain Austenite grain size? Explain any one technique.
07
OR
Q.3 (a)
Explain allotropy of iron with neat sketch.
03
(b)
Draw the Copper-Nickel binary phase diagram and explain it.
04
(c)
Write a note on solidification of metals and alloys.
07
Q.4 (a)
Explain allotropy of iron with neat sketch.
03
(b)
List out Coding of steel? Explain any one standard with suitable example.
04
(c)
What is cooling curve? Draw the cooling curves for binary solid solution alloy
and binary eutectic alloy.
07
OR
Q.4 (a) Explain why C-Si ratio importance in cast Iron? 03
(b)
Mention the effect of alloying elements on the properties of steel.
04
(c)
Discuss about Gray Cast iron with chemical composition, properties, application
and microstructure.
07
Q.5 (a)
Write in detail about basic steps required to prepare metallographic specimen.
03
(b)
Explain Metallurgical Microscope with neat diagram.
04
(c)
Write short note on Nodular Cast irons.
07
OR

Q.5 (a) Discuss effect of impurities on properties of steel. 03
(b)
Explain electrolytic polishing.
04
(c)
Differentiate between Macroscopic and Microscopic Examination.
07
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