Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 3rd Sem New 2131904 Material Science And Metallurgy Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER?III (New) EXAMINATION ? WINTER 2018
Subject Code: 2131904 Date: 01/12/2018
Subject Name: Material Science and 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) Explain the requirement of engineering materials.
03
(b) Explain zero dimension defects with neat sketch 04
(c) Draw iron ? iron carbide equilibrium diagram. Explain
important phases in it. Discuss the phase transformation takes
place for the eutectoid steel from liquid to room temperature.
07
Q.2 (a) State composition and specific applications of :
Muntz metal ; German silver ; Naval brass
03
(b) What are the effects of alloying chromium, nickel,
molybdenum, and carbon in steels?
04
(c) Justify the need of Heat treatment processes for metals. Explain
with neat sketch TTT diagram for heat treatment of steel.
07
OR
(c) Explain magnetic particle testing (MPT) method with neat
sketch. Also explain its benefits and limitations.
07
Q.3 (a) Write procedure to find miller indices for atomic plane with
suitable example.
03
(b) Explain powder production methods in powder metallurgy
manufacturing process with neat sketch
04
(c) What is critical resolved shear stress? Explain how it is
responsible for initiating slip in atomic plane?
07
OR
Q.3 (a) What is solid solution? Briefly explain types of it with neat
sketch.
03
(b) List types of cast iron. Explain any two types with
composition, properties and application.
04
(c) Draw neat sketch of inverted metallurgical microscope and
Explain in detail steps for specimen preparation for
metallurgical examination under metallurgical microscope.
07
Q.4 (a) Justify the statement ?iron shows limited solubility for
carbon in solid phase?
03
(b) List the characteristics required in dye material for dye
penetration testing.
04
(c) List case hardening processes. Explain carburizing and
induction hardening with neat sketch.
07
OR
Q.4 (a) Discuss applications of steels in engineering field. 03
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER?III (New) EXAMINATION ? WINTER 2018
Subject Code: 2131904 Date: 01/12/2018
Subject Name: Material Science and 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) Explain the requirement of engineering materials.
03
(b) Explain zero dimension defects with neat sketch 04
(c) Draw iron ? iron carbide equilibrium diagram. Explain
important phases in it. Discuss the phase transformation takes
place for the eutectoid steel from liquid to room temperature.
07
Q.2 (a) State composition and specific applications of :
Muntz metal ; German silver ; Naval brass
03
(b) What are the effects of alloying chromium, nickel,
molybdenum, and carbon in steels?
04
(c) Justify the need of Heat treatment processes for metals. Explain
with neat sketch TTT diagram for heat treatment of steel.
07
OR
(c) Explain magnetic particle testing (MPT) method with neat
sketch. Also explain its benefits and limitations.
07
Q.3 (a) Write procedure to find miller indices for atomic plane with
suitable example.
03
(b) Explain powder production methods in powder metallurgy
manufacturing process with neat sketch
04
(c) What is critical resolved shear stress? Explain how it is
responsible for initiating slip in atomic plane?
07
OR
Q.3 (a) What is solid solution? Briefly explain types of it with neat
sketch.
03
(b) List types of cast iron. Explain any two types with
composition, properties and application.
04
(c) Draw neat sketch of inverted metallurgical microscope and
Explain in detail steps for specimen preparation for
metallurgical examination under metallurgical microscope.
07
Q.4 (a) Justify the statement ?iron shows limited solubility for
carbon in solid phase?
03
(b) List the characteristics required in dye material for dye
penetration testing.
04
(c) List case hardening processes. Explain carburizing and
induction hardening with neat sketch.
07
OR
Q.4 (a) Discuss applications of steels in engineering field. 03
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2
(b) Explain sintering process in powder metallurgy with neat
sketch.
04
(c) Write short notes on Recovery, Recrystallization and Grain
growth
07
Q.5 (a) Classify engineering materials and discuss mechanical
properties.
03
(b) With neat sketch explain solidification of metals and alloys. 04
(c) Draw the phase diagram of binary system showing 100%
solubility in liquid and solid phases and explain lever rule.
07
OR
Q.5 (a) List applications and properties of tool steel. 03
(b) Explain white metal and bearing alloys by stating
composition, properties and application.
04
(c) What is atomic packing factor? Derive APF for hexagonal
closed pack (HCP) structure with neat sketch.
07
*************
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This post was last modified on 20 February 2020