2015,2014,2013,2012 and 2011 Anna University questions of the subject Engineering Materials and Metallurgy for the students are studying 2 nd year Mechanical Engineering are here take for your reference and try to get maximum marks and also it will be useful for the department of Material Science.
.; .
Anna University Question,May - June 2014
Question
Paper Code:
51632
B.E./B.Tech. DEGREE EXAMINJ\TION, MAY/JUNE
2014.
Fourth Semester
Mechanical Engineering ·
'
M,E 2253/ME
44/ME 1253/0801200.:),,7/10'122ME 304 -
ENGINEERING MATERIALS AND METALLURGY
ENGINEERING MATERIALS AND METALLURGY
(Commonto Automobile Engineering, Mechanical and Automation
Engineering)
(Regulation 2008/2010)
(Common to P'TME
2253 - Engineering Materials and Metallurgy
for
B.E. (Part-Time) Third Semester- Mechanical E:ngjneering- Regulation 2009)
Time : Three. hours
Maximum : 100 marks
Answer ALL questions.
PART A_-
(10 x 2 = 20 marks)
1. State Gibb's
phase
rule?
. .
2. State
Hume
Rothery's rules
for formation of substitutional solid solutions.
3. What is quenching?
List some of the quenching
medium
generally
used in
industries. ·
4. What is the
significance of TTT diagram in the
heat
treatment of steel?
5. What are the primary
effects
of chromium, and copper as alloying elements
in
.. ..
6. What are super
alloys?
7. , What
.is meant
by the term
'unsaturated molecule'? State
itaaignificance
in plastics.
8. What are
sialons? State their-appl~catio-ns.
,
9. What is
the
effect .of
the grain
size
on the
mechanical properties of the materials?
10. What
is S-N diagram? What is-the significance of it? .
. .PART
R- (5 x 16 = 80 marks)
11.
(a)
With the help of the, Fe.~C equilibrium
diagram
describe completely the
· changes that take place
during the slew
cooling of 0.5% carbon steel from liquid
state. (16)
· Or
(b) Metal
'A' has
melting
point of 1000°0. Metal
'B' has
melting .point of
500°C. Draw one phase· diagram. (between. the elements
'A'
and
'B')
for each of the
following conditions.
(i) · The two
elements exhibit unlimited
solid solubility. (8)
(ii) The alloy system
shows formation
of two terminal solid solutions and a
Eutectic point, at 50% A and at 700°C. (8). · .
'.
12. (a) Distinguish between
'hardness and
"hardenability". With
suitable
sketches, explain the Jominy hardness test for hardenability. (16)
Or
(b)
(i) Discuss different types of annealing
processes. (8)
(ii) Explain normalizing and induction hardening. (8)
I
13. (a). (i) With a neat sketch, explain precipitation
hardening. (8)
(ii) State the composition, properties arid uses of bearing
alloys. (8)
· Or·
(b) .
Write short
notes
about
the
following materials
in
terms of composition,
properties and applications ..
(i) Maraging steels
|
(4)
|
||
(ii) Alpha-beta brasses
|
(4)
|
||
(iii)
Austenitic stainless steels
|
(4)
|
||
(iv) Ferrite stainless steels. ·
|
(4)
|
||
14.
|
(a)
|
What do
you understand by polymerization?
examples, Compare and contrast the process and condensation Polymerization.
|
With the
help of
suitable of addition
polymerization (16)
|
Or
(b) (i) Write short note. about the different
types
of matrix
materials and reinforcement materials
used
to make polymer matrix composites.
(8)
(ii) Discuss the properties and applications
of Al203 and SiC. ·(8)
15. (a)
Explain the different
types of mechanical properties and mechanism of plastic deformation by slip
and twinning. (16)
Or
(b) (i)
Draw the S-N
curve
formild steel
and aluminium
and
explain its
features .. Explain-the procedure used to obtain
S-N diagram. (10)
(ii)
Explain briefly about charpy impact test, . (6)
2
51632
Anna University Question,May - June 2013
Question
Paper Code:
21564
B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE
2013.
Fourth
Semester
Mechanical Engineering
ME 2253/ME 44/ME 1253/10122
ME
3D4/080120017 - ENGINEERING MATERIALS AND METALLURGY
(Common
to Automobile
Engineering
and
Mechanical and
Automation Engineering) (Regulation 2008/2010)
(Common
to PTME 2253
- Engineering
Materials
and
Metallurgy B.E. (Part - Time) Third Semester - Mechanical Engineering
-
Regulation 2009)
Time : Three hours
Maximum : 100 marks
Answer ALL questions.
|
PART A-(10 x 2 = 20 marks)
1. Write the constitution
of austenite
and
its· crystal structure.
2. Classify
the
plain
carbon
steels.
3. What are different processes of surface hardening?
4. When is the annealing
process
preferred?
5. Define plastic
deformation.
6. What
is creep?
7. What is the
effect
of chromium alloying
element on the properties
of steel?
8. What are bronzes? List some
uses of bronzes.
9. Define
plastics.
10. What
is PA?
PART B-
(5 x 16 = 80 marks)
11. (a) Explain with neat sketch the eutectic
systems? Give examples
for
this
system. (16)
Or
(b) With
the
help
of neat sketch explain
the two types
of solid solution. (16)
12. (a) (i) Distinguish between annealing and normalizing. (6)
(ii) Explain with neat setup fig the working principle of an induction hardening.
(10)
Or
(b) Explain jorniny test (or)
End quench harden ability test with the help of the neat sketchs. (16)
13. (a) Explain the mechanism of plastic
deformation
by slip and twinning with neat sketch.
(16)
Or
(b) Sketch and describe the
fatigue
test.
(16)
14. (a) Write short notes on
(i) Maraging steels
(5) (ii) Stainless steels
(5) (iii) High speed steels.
(6)
Ot
(b) (i) Name non ferrous
materials
for the following articles
(1) Bush
(2) Furnaces Heating· element
(3) Type
writer parts
(4) · coins
(5) girders
for
airship
(6) Big
end bearing
(7) filament of electric lamps
(8) Turbine blades.
(ii) Write short notes on
(1) Bearing metals
(2) Brasses. (8)
15. (a)
Write notes on
(i) PVC
(ii) PF (iii) Glass
(iv)
PMMA
(16)
Or
(b)
|
(i)
|
What lS polymerization? Describe
|
addition
polymerization
|
and
|
condensation polymerization.
|
(10)
|
(ii) How plastic
materials are classified? Explain each classification. (6)
2
21564
For all mechanical engineering subjects university questions were uploaded.
Search with subject code and name on top right side of this site.
Search with subject code and name on top right side of this site.
No comments:
Post a Comment