Download VTU BE 2020 Jan ME Question Paper 15 Scheme 3rd Sem 5A5ME32 Material Science

A
USN
C-.
<
0

--- Content provided by FirstRanker.com ---

6
/SRA rp
tt

C

--- Content provided by FirstRanker.com ---

Hfr
t
i
(
C

--- Content provided by FirstRanker.com ---

?
1,fA5ME32
6 el(ACJ
-
fi

--- Content provided by FirstRanker.com ---

r
/
Third Semester B.E. Degree Examination, Dee.2 ' 020
Material Science
Time: 3 hrs. NI a x 80

--- Content provided by FirstRanker.com ---

Note: Answer any FlIE fitll questions, choosing ONE Intl question
.
from each module.
73
P iv) Co-ordination number v) Automic packing factor. (05 Marks)

--- Content provided by FirstRanker.com ---

b. Differentiate between Edge and Screw dislocation. (05 Marks)
.,3
c. Explain factors affecting diffusion. (06 Marks)
u
L.'

--- Content provided by FirstRanker.com ---

7.
7!
Co -c)
OR
. -

--- Content provided by FirstRanker.com ---

C.. 7,- .
...v.: P. 2 a. Explain surface defects with neat sketches. (05 Marks)
gi
c
;

--- Content provided by FirstRanker.com ---

u., b. Explain cup and cone fracture, with neat sketch. (05 Marks)
s?Nra, II
F? c: oc c. Explain with neat stress - strain diagram, the mechanical properties of a material in plastic
-:
E: N

--- Content provided by FirstRanker.com ---

+
range. (06 Marks)
,,- ..,.b
.

--- Content provided by FirstRanker.com ---

Module-2
.,
. .: 3 a. Explain solidification in pure metals. (05 Marks)
0
..,...

--- Content provided by FirstRanker.com ---

;.- c b. Define Solid Solutions. Explain the types of solid solutions. (05 Marks)
.7..
C! 1
c. What is Hume Rothay's rule? Explain all the rules of Hume Rother's. (06 Marks)
ti u

--- Content provided by FirstRanker.com ---

7: t
OR
c ----

?

--- Content provided by FirstRanker.com ---

-c
to c
4 a. Lead (Pb) melts at 323
?
C and tin (S?) melts at 232

--- Content provided by FirstRanker.com ---

?
C. Additions of S? to Pb lowers the
ct
-Ei k-
.: 17 ,5

--- Content provided by FirstRanker.com ---

melting point Pb and addition of Ph to Sn also lowers the melting point of S
n
at 180
?
C, Liquid

--- Content provided by FirstRanker.com ---

.v ct
,_ -
of composition 61.9 % S
n
, alpha (a) phase of composition 19.2 % S

--- Content provided by FirstRanker.com ---

n
and beta (() phase of
c
-- ,?
composition 96.2 % S

--- Content provided by FirstRanker.com ---

n
are in thermal equilibrium. The solubilities of Pb in S
r
, and S? in Pb at
0

--- Content provided by FirstRanker.com ---

_
a room temperature are negligible.
,., ?.?
2" - ..,
i) Draw the Ph ? Sn diagram ii) Identify the reactions occurring at 180

--- Content provided by FirstRanker.com ---

?
C
c.
:
. th- iii) Calculate the amount of phases in an alloy of composition 40% S,, at 1790

--- Content provided by FirstRanker.com ---

?
C.
.,.c. -
.....
e

--- Content provided by FirstRanker.com ---

i .0
(1.,
(08 Marks)
: u
v: ...c, b. Draw the neat sketch of Iron - Carbon diagram. Indicate all phases and explain 3 invariant

--- Content provided by FirstRanker.com ---

c ?-
. a
L 4) reactions. (08 Marks)
72

--- Content provided by FirstRanker.com ---

t 0
C: 041
Module-3
?- c
t :_

--- Content provided by FirstRanker.com ---

.
5 a. Explain T - T - T diagram for eutectoid steel. (08 Marks)
E: .
s
>.

--- Content provided by FirstRanker.com ---

? - b. With a neat diagram, explain continuous cooling transformation diagram. (08 Marks)
(... '-.
C
>,
c ,

--- Content provided by FirstRanker.com ---

<
...: N
OR
.42
.

--- Content provided by FirstRanker.com ---

6 a. Define Heat treatment. List its objectives. (05 Marks)
z;
b. Write the classification of heat treatment. (05 Marks)
t
cv

--- Content provided by FirstRanker.com ---

c. Explain age hardening heat treatment for non - ferrous materials. (06 Marks)
t:
C,
C:.
Ei

--- Content provided by FirstRanker.com ---

-.
Module-4
7 a. What are Ceramics? List and explain processing of ceramics.
(07 Marks)
b. Explain mechanical properties of ceramics.

--- Content provided by FirstRanker.com ---

(05 Marks)
c. List advantages and applications of ceramics.
(04 Marks)
1 of 2
Module-1

--- Content provided by FirstRanker.com ---

? 1 a. Define the following : i) Unit cell ii) Lattice iii) Space lattice
FirstRanker.com - FirstRanker's Choice
A
USN
C-.

--- Content provided by FirstRanker.com ---

<
0
6
/SRA rp
tt

--- Content provided by FirstRanker.com ---

C
Hfr
t
i

--- Content provided by FirstRanker.com ---

(
C
?
1,fA5ME32
6 el(ACJ

--- Content provided by FirstRanker.com ---

-
fi
r
/
Third Semester B.E. Degree Examination, Dee.2 ' 020

--- Content provided by FirstRanker.com ---

Material Science
Time: 3 hrs. NI a x 80
Note: Answer any FlIE fitll questions, choosing ONE Intl question
.
from each module.

--- Content provided by FirstRanker.com ---

73
P iv) Co-ordination number v) Automic packing factor. (05 Marks)
b. Differentiate between Edge and Screw dislocation. (05 Marks)
.,3
c. Explain factors affecting diffusion. (06 Marks)

--- Content provided by FirstRanker.com ---

u
L.'
7.
7!
Co -c)

--- Content provided by FirstRanker.com ---

OR
. -
C.. 7,- .
...v.: P. 2 a. Explain surface defects with neat sketches. (05 Marks)
gi

--- Content provided by FirstRanker.com ---

c
;
u., b. Explain cup and cone fracture, with neat sketch. (05 Marks)
s?Nra, II
F? c: oc c. Explain with neat stress - strain diagram, the mechanical properties of a material in plastic

--- Content provided by FirstRanker.com ---

-:
E: N
+
range. (06 Marks)
,,- ..,.b

--- Content provided by FirstRanker.com ---

.

Module-2
.,
. .: 3 a. Explain solidification in pure metals. (05 Marks)

--- Content provided by FirstRanker.com ---

0
..,...
;.- c b. Define Solid Solutions. Explain the types of solid solutions. (05 Marks)
.7..
C! 1

--- Content provided by FirstRanker.com ---

c. What is Hume Rothay's rule? Explain all the rules of Hume Rother's. (06 Marks)
ti u
7: t
OR
c ----

--- Content provided by FirstRanker.com ---

?
-c
to c
4 a. Lead (Pb) melts at 323

--- Content provided by FirstRanker.com ---

?
C and tin (S?) melts at 232
?
C. Additions of S? to Pb lowers the
ct

--- Content provided by FirstRanker.com ---

-Ei k-
.: 17 ,5
melting point Pb and addition of Ph to Sn also lowers the melting point of S
n
at 180

--- Content provided by FirstRanker.com ---

?
C, Liquid
.v ct
,_ -
of composition 61.9 % S

--- Content provided by FirstRanker.com ---

n
, alpha (a) phase of composition 19.2 % S
n
and beta (() phase of
c

--- Content provided by FirstRanker.com ---

-- ,?
composition 96.2 % S
n
are in thermal equilibrium. The solubilities of Pb in S
r

--- Content provided by FirstRanker.com ---

, and S? in Pb at
0
_
a room temperature are negligible.
,., ?.?

--- Content provided by FirstRanker.com ---

2" - ..,
i) Draw the Ph ? Sn diagram ii) Identify the reactions occurring at 180
?
C
c.

--- Content provided by FirstRanker.com ---

:
. th- iii) Calculate the amount of phases in an alloy of composition 40% S,, at 1790
?
C.
.,.c. -

--- Content provided by FirstRanker.com ---

.....
e
i .0
(1.,
(08 Marks)

--- Content provided by FirstRanker.com ---

: u
v: ...c, b. Draw the neat sketch of Iron - Carbon diagram. Indicate all phases and explain 3 invariant
c ?-
. a
L 4) reactions. (08 Marks)

--- Content provided by FirstRanker.com ---

72

t 0
C: 041
Module-3

--- Content provided by FirstRanker.com ---

?- c
t :_
.
5 a. Explain T - T - T diagram for eutectoid steel. (08 Marks)
E: .

--- Content provided by FirstRanker.com ---

s
>.
? - b. With a neat diagram, explain continuous cooling transformation diagram. (08 Marks)
(... '-.
C

--- Content provided by FirstRanker.com ---

>,
c ,
<
...: N
OR

--- Content provided by FirstRanker.com ---

.42
.
6 a. Define Heat treatment. List its objectives. (05 Marks)
z;
b. Write the classification of heat treatment. (05 Marks)

--- Content provided by FirstRanker.com ---

t
cv
c. Explain age hardening heat treatment for non - ferrous materials. (06 Marks)
t:
C,

--- Content provided by FirstRanker.com ---

C:.
Ei
-.
Module-4
7 a. What are Ceramics? List and explain processing of ceramics.

--- Content provided by FirstRanker.com ---

(07 Marks)
b. Explain mechanical properties of ceramics.
(05 Marks)
c. List advantages and applications of ceramics.
(04 Marks)

--- Content provided by FirstRanker.com ---

1 of 2
Module-1
? 1 a. Define the following : i) Unit cell ii) Lattice iii) Space lattice
tA,
LIB

--- Content provided by FirstRanker.com ---

Fgz\l'
6
i.0,00?
Socie'
-

--- Content provided by FirstRanker.com ---

; t
15ME32
OR
8 a. What are Plastics? List processing of thermoplastics and explain any one method. (07 Marks)
b. Explain in brief the selection of engineering materials. (05 Marks)

--- Content provided by FirstRanker.com ---

c. Explain NDT method for Residual life assessment. (04 Marks)
Module-5
9 a. Define Composite Materials. List their classification based on matrix and reinforced
constituents. (07 Marks)
b. Differentiate between thermoset and thermoplastic materials. (05 Marks)

--- Content provided by FirstRanker.com ---

c. Write a note on Metal Matrix Materials. (04 Marks)
OR
10 a. List and explain various fibers used in preparation of composite materials.
b. Explain Powder metallurgy technique of production of composite materials.
c. With neat sketch, explain Squeeze casting.

--- Content provided by FirstRanker.com ---

(07 Marks)
(05 Marks)
(04 Marks)
* * *
2 of 2

--- Content provided by FirstRanker.com ---

FirstRanker.com - FirstRanker's Choice