NERIST NEE (3) 2017 Question Paper

Exam-IIUl7130-351A PAPER C{IDE: 3&/3XI3ZI33 1S4I3S

f,XA&{TNATTGN*XTH
Duration: 3 Hours Maxir?rum Msyks : 150

keaEl fhe following Ynstnuctions carefully:
;. {'il{E{ls{ T}{E PAPEI1 CODE OF THE QUESTION pAPER WrTH pApER CODE pRr\rTED rhi ysutr dB&,ti.r
i:AR$" fF I'I DCES,\iOT NXATCI{, REPORT IT Ihfl\'XtrDIATEtr-Y TO THE il{VIGln,ATGR"
?" Ttr;s Question Paper contains 130 multiple-choice otr.jective t;upe questions as ftllows:
Secfiom-A Fhl'sics (Q No. 1 - 25 of 1 rnark each) Section-A is Compulsorv fbr all
Secticn-E Chemistry (Q No 26 - 5A of I rnark each) Section-B i. Co*!,ul*.*y for ail
See fion-c L4athematrcs (Q. No. 5l
- 80 of I mark eacl: section-c i. e;*pulr"rv for all
Section-D Engineering branch (Q. No 8 I - i 10 of 1 mark each, anci Q. No. I t f I f :O of2 ,*rk each)
This section contains questions from six Engineering branch-es (paper Code : 30 - 35)
ONLY ONE Engineertng branch is to bc atternptecl as per Faper Code printctj on Admit
Card
3. rne page no. of question paper of six Engineering Branches arc as follor.vs:
AE (16 - 23), CE (24 - 31), CSE (32 - 40), ECE (41 - 48), EE (49 - 55), ME (56 _ 63).
4. Do not attempt tire questions paper before the scheduled start.
5. Each Question has four options (A, B, C and D). Choose the correct / most appropriate option (only
one) for your answer by darkening the bubble with Blue i Black ball point pen in
the OMR Aflswer
Sheet accordingly.

For exampie: if your choice of answcr is (A). $:-1
Use of Pencil on OMR Sheet is strictly prohibiterl.
!!.1
6' Darkening more than one option bubble in the OMR Answer Sheet against a
euestion Nurnber shall
be treated as incorrect. For every incorrect answer to a question, 25yo (U4th)
carried by that question will be deducted. No deduction &om the total score u,ill be made
,f ;;; *arX,
if no
response is indicated for an item in the Answer Sheet.
7" All rough works should be done in the space provided in this questron paper.
Any rough works /
calculations done on the OMR Sheet will lead to Cancellation of Candidature.
8' No candidate is allowed to carry textual material, printed or written, bits of paper, pager,
mobile
phone, any other electronic gadgets, etc. except the Admit
Card in the Examination ftali. However,
calculator (non-programmable) / log table are allowed in the Examination Hall.
9' Candidates may leave the Examination Hall only after the expiry of one hour of
the examination but
they ri'ill not be allowed to take this euestion paper along with them.
l0' This Question Paper contains 64 printed pages. In case of any discrepancy, please repofi
immediateh,to rhe Invigilator on duty in the HalyRoom.
l1' Adoption of any kind of unfair means/ malpractices in the examination hall wili render
the candida{c
iiable for canceilation of his/her candidature ladmission.
12. write your RollNo. and Name in the Box provided below:

Roll Number

Name

I

NEE-Irr/l7l30-3s/A Page 3 of64
PAPER CODE: 30 to 35

SECTTON _ A (PHYSTCS)
[Section - A is Compulsory for all al the candidatesl

Question numtrers I - 25 carry 1 mark each:
I' The coeffrcient of linear expansion of brass and
steel.are o1 and {r2 respectively. If we take a
brass rod of length il and steel rod of tength
r, ui oilC.li;rT:.;;; in their length will
remain same at all temperatures, if

tA] 0,1 11:02 12
tBl 0.1 12:0,2
tcl a12 l; a22 12
tD] a12 12: a22
11

11

2. The distances of two planets from the sun
are 10r3 and 10r2 m, respectively. The
time period of these planets is ratio of the

tAl 100 lBl o.fi o
tcl Jo 1

lDl llJto
3' rt I'aand rare the moment of inertia, angular acceleration
and torque respectively of a
body rotating about any axis with angular
velocity a, , ltren
lAl r: Id iBl .ttt.: Ia
icl I = r0 [Dl Ia
==

4' A steel rvire is 1 m iong and 1 mm2 in area of,cross-ser;rion.
wire by i mm, hou' much lorce will be If it takes 200 N to stretchthis
requirJ io srrctch a wire of the same material
diameter fiom its normal length to length and
oll OO2 cmZ
[A] 100 N tBl 200 N
tcl 400 N tDl 2000 N
5' How much time will light take to traverse
a glass slab of thickness l0 cm
1.5? and refractive index

lAl 0.5 x 10-e s tBl I'-5xlo-es
LC) 2.0xlo-8s
V' -- -v "
[D] 3:() x 10-8 s
6. Eddy currents are

lA] induced currenrs due to changing tB] Induced
magnetic flux currenrs due to high
magnetic flux
tC] induced currents in a homogeneous tD] Unstable
materiai currents in a conductor

(Spacefor ro@

r

Exam-IIVl1130-351h Page 4 of 64
PAPER CODE: 30 to 35

The rate of flow through
7. Two capiliary tube A and B are of equal radius and equal iength'
either tube under a pressure
p is g.*jir... If the tw<l tubes are connected in series and same
pressure is maintairied across the combination the flow will
be,

tAl 8 cm3/sec tBl 2 cm3/sec
icl 4 cm'/sec tDl 6 cm'/sec
g. The sensitivity of the potentiometer can be increased by

tAl lncreasing the e.m.f. of primary cell lBl Increasing the potential gradient
the length of potentiometer
tcl tn.."urir! the length of potintiometer tDl Decreasing
wire wire

9. Fusion reactions take place at high temperature, because

break up at high
tAl Atoms are ionized at high temperature [B] Molecules
temperature
Nuclei break up at high temperature lDl Kinetic energy is higir enough to
overcome repulsion between nuclei
e' ii
n'jk 10. If force (F), velocity (V) and Time (T) are chosen as fundamental units, the dimensions o1
rss in this systentwill be represented as

tAl MLoTo tBl FV]T,
icj Mr-T'2 tDl FV'r-'
The magnitude cf resultant of two equal forces is equal to either of the
11
force. The angk
between two forces will be

LAI 600 iBl 9oo
lcl t}ao lDl i3so
12. The relative permeability of a material is 0.99. It will essentially'be,

lA] Paramagnetic substance tB] Diamagnetic substance
fCj Ferrc,magnetic substance tD] None of these
13. A flyvheel rolls down an inclined plane. At any instant of time, the ratio, of rotational to it
kinetic energY is

tAl 1:1 lBl r:2
tcl 2:r tDl 1:3

NtrE-{I{in7l3{}-35/A Fage 5 *f 64
{"}AA'EH" CCISE: 30 ts.15

n'4. trn lru'hich of the follolving case mutual inciuctance is maxiireum

iAl Srv'YY]^y\
',,r-v [B1 S *
P P /yft y'\a\
lcl S vr*e,XXX,(,r
,^fir'
fDl S\r,..t,^/^tr,^,n^, p
P
15" The therrnodynamic process in which no exchange of heat frcrn ttrre s)rstem takes place is
cailed

lAl Isothermal tBl Adiabatic
tcl Isobaric tDl Isometric
16. N-type germanium is obtained on doping intrinsic germanium by
tAl Phosphorus [B] Aluminium
tcl Boron tDl Gold
17. To get three images of a single object, one should have two plane mirror at an anglc of
Ixl eOu
"tcl
, 30o tBl 60o
tDl i 20"
18. Absorptive power of the perfect blackbody is
lAl l [B] -1
tcl 0 [D] Infinity
19. Which of the following is incorrect regarding the tlrst law of thermodynamics
lAl It is the resultant of the principle of tBl It is not applicable to any cyclic
conservation ofenergy process
tcl It introduces concept of entropy IDI tsoth [B] and lCl
2C. The eie cliic potentiai at the surfaee of an atomic nncleus {Z: 50} of radius 9"0 x 10-rsm is
[Aj 80 \,/ [B] I ,. 106v
l"Cl eY tDJ 9.0x10sV

(Space for rough works)

t-
Exam-IIUl7130-351A Page 6 of 64
PAPER CODE: 30 to 35

21. A curie is a standard unit of radio activity. Its value is

tAl l0edisintegrations/sec tBl l0rodisintegrations/sec
tC] 3.7 * l0r0disintegrations/sec lDl 37000 disintegrations/sec
22. The velocity of sound in air is 350 ms-r. The frequency of the fundamental note emitted by a
tube of length 50 cm open at both ends is

tAl 50 Hz tBl 175 Hz
tcl 350 Hz tDl 700 Ltz.
23. When the light travels from one medium to another, which of the following does not change?

lAl Frequency tBl Velocity
lcl Wavelength IDI Refractive index
24. A cylinder of radius r is rigidly flxcd at one end. It is tu'isted tlrrough a cerrain angle. The
couple required is proportional to

l tAl ,o tBl ,.'
--l
IH tcl I
1
iDl I
.
Iri t' t'-

25. With high fiequencies, capacitive reactance

tA] Remains unchanged IB] Increases
tC] Decreases tDl None of these

------xxx----Physics Paper Ends------xxx-----

NEE-rII/17l30-35/A PageT of64
PAPER CODE: 30 to 35

SECTION _ B (CHEMISTRY)
[Section B is Compulsory for all althe candidatesl

Question numbers 26-50 carry I mark each:

26' The Van't Hoff factor for 0.lM Ba(NO3)2 solution is 2.74. the degree
of dissociation is

lAl er3% tBl 87%
tcl tjo% lDl 74%
27 - colligative properties of sorutions are those which depend upon

tA] The nature of the solvent tB] The nature of the solute
tC] The number of solvent molecules tD] The number of solute particles
28. The Blue colour of the sky is due ro

tA] Brownian movelnent tB] The presence of macromolecules
tcl Tyndall effect tD] Electrophoresis
29' The solubility of Agl in an aqueous solution of Nal is less than that in pure water because
lAl AgI forms complex with Nal IB] of common ion effect
lcl Solubility product of AgI is less than of ioj The temperature of the solution
Nal decreases
30. which of the follorving has the least Lervis acicl character,/

tAl BF3 tBl BCt3
tcl BBr3 . tDl Br:
31. Azimuthal quantum nunrber determine the

tAl Size of an atomic orbital IB] Spin of electrons
tC] Orienration of an aromic orbital ID] Angular momentum of an atomic
orbital
32. Among BeF2, BF:. NH: and CCI+, the molecule with net
dipole moment is
tAl BeF2 tBl BF:
tcl NHr lDl ccl4

(Spacefor rorgiii,@

Exam-Ililtr 7/30-35/,& Fage I of 64
PAPER. CODE: 30 to 35

silver?
33. Which metai is common in brass, bronze and german

lAl CoPPer tBl Iron
tD4 Zinc
tcl Alurninium
alcohotr because of
54" Carboxyiic acids are tnore acidic tharr phenol and

lAl Intennolecular hydrogenbonding lBl
.[oj Formation of dimmers
Greater resonancs stabilization of their
[C] HighiY acidic hYdrcgen conjugate base
.E
al For an isothermal process? AS is equal to

tAl q tBl g,"u/T
tcl erev [D] Tq."v
rate of the reaction. what is the order of
36. Rate constant of a reaction has the same unit as the
this reaction?

tAl First order [B] Second order
tC] Pseudo ftrst,order tD] Zero order'
oiCH:CO:Na is added?
3?. In which dtection wiil ttre following equilibrium shi{t if a solution
CI{:COOF{(aq)# CUTCOT(aq)+H*(aq)

JA Shift to the right lBl Shift to the left
tcl No change tDl None ofthese
?o The ionic radii of K* , Ci*,Cf and 52- ions decrease in the
order
J(),

tAl cr> s2> K*> ca2',
rftl
K*> Ca2*> cr> s2-
li] j
icj s2-> ct-> K*> ca2* lDl ca2* > K-> cl-> s2-

39. Sulfuric acid is manufactured bY

tA] Habers Process [E] Contact Process
[C] Redox Process [D] Complex Frocess
40. Which of the following is an aromatic heterocyclic compound?

tAl Pyrroie [B] Fyrrolidine
tcl Ethylene oxide tDl Dioxane

NEE-III/17/30-35/A Page 9 of 64
PAPER CODE: 30 to 35

41. Which of the following is not a mixture of hydrocarbons?
lAl Candle wax tBl Kerosene
tcl Paraffin oil tDl Vegetable oit
42. Which of the following compounds reacts with sodium to liberate hydrogen gas?
lAl Ethane tBl propylene
ICI Acetylene tDl Benzene
43. Corrosion is an example of
iAl Electrodeposition tBl Oxidation
tcl Reduction tDl Electrolysis
44. A true statement about "Green House Effect,,is that it is
lAl Caused by combination of many gases tBl Caused by COz
tcl Caused only by CO2, CFC, CH+ & NOz tDl None of these
45. Amines are basic in character because they have
tAl A lone pair of electrons on the nitrogen tB] A hydroxyl group in the molecule
atom
tc] Replaceable hydrogen atom tD] Tetrahedral structure
46. Neoprene is a
tAl Monomer tBl Synthetic Rubber
tcl Polyester tDl polyamide
47. \\4rich of the following compounds is most basic?
IAI Cyclohexylamine tBl Aniline
tcl p-merhoxyaniline tDl p_nitroaniline
48. Chlorobenzene is formed by reaction of chlorine with benzene in the presence of AlCl:.
Which of the following species attacks the benzene ring in this reaction?

tAl cr Bl cln
tcl AlCl3 tDl tAlcl4l-

(Space for rough works)

Exam-IIU17l30-3ilA Page l0 of64
pApER CODE: 30 to
35
49. The primary alkyl halide would prefer to undergo
tAl Syl reaction tBl o-Elimination
tcl Sp2 reaction
s0' The compound that is most reactive towards .,."::lJ:rr#:
lA] Nitrobenzene ,-ffi Benzene
tcl Benzoic acid tD] Toluene

-----xxx----Chemistry paper End___--_xxx-_--

tu
1V st
r&
,rT1us
$t ,t "'
"\S
r\'
*V' /
\/ \
a_ ,.' \
\r

X
\
"Y f,/

\,, t/
//\'v"
\Q2
; \// \\ \ -'
\"
qu r.ilP' rd
q. -
\s\
\-

NEE-III/I7/30-35i4 Page 11 of64
P.A,PER CODE: 30 to 35

SECTTON - C (MATHEMATICS)
[Section C is gprnpulSgg for all al the candidates]

Question numbers 51-80 carry I mark each:

51. The number of solution equation
fnn-1i" - fJ 7 fna-1x, l tarr-1(x + 1] : tc.n-l3:t is
tAl 3 tBl 2
tcl 1 ID] 4
JL'
5?
The fociof the ellipse; +
.r2 1'? -
l andthehyperbolaL*;: f
.r'2 vz 1
coincide,thenthe
*:
value of b2 is

tAl i tBl s
IC] 9 tDl 7
53. If F = xy3i + 2131,s3 - 3],.e 3l*, then curl F at [1,-1,1) is
tAl i + 7,k tBl -i + gid q
tcl -i - ?k tDl -i - ?j
54. Equations of the straight line through the point (a, b, c) which is parallel to z-axis is
tA] .f,-a_-*.-*="-" tB] x-a =- -r.-l: =- z-c
Y-
001
tcl x-n._y-&_t-" tDl None of these
010
55. A purse contains 4 copper, 3 silver coins and the second purse contains 6 copper, 2 silver
coins. A coin is taken from any purse, the probability that it is a copper coin be

tAl 4t7 tBl %
tcl 3t7 tDl 37ts6
55" Theevents,{and BaresuchthatPdC): L/+, P{rt;5; :LfZ andP(B lH}:3/3.Then
F{te) is

tAl L/2 IB] U3
IC] U6 lDl 213

u'Y-4l.Qc\ }rf N'
/,
/qL\ rf
/{
A/
fr!,, /\ s
)"tu

ri7-+r .*-
t
'dI \\

ff:.
-,/
$
..Y
t
v
Exam-IIU17130-351A Page 12 of 64
PAPER CODE: 30 to 35
v t^
\7 7. \ _ )'Ldn S7'ml
f2
I
d,tt 'i: 'k; La
Ju a:'coslx.f &tsinEx
\
.--i'-td'.1^lt'
'
tAl 2,,t ct&
tBl n d-D' 1"" ^v\" ,?\
rlL
u
tcl tDl a \'4
asb" (1.
2ab
58' rr z :ftns + ar) + (y
- ax)l, tnanff- &a ffi) is equal to

tAj 0 !1
tBl I
tcl - cx ,1" tD] sec{r. f a;rJ
59. The function u : Br:3 13 + ,h,3 is maximum at
-
tAl (_s, _3)
o\t,
tBl (0,2)
tcl (-2,0) ioj (3,5)
60' The distance between the point(-l, -5, -10) and the point of intersection
of the line
1U *-2 y+1
IH 3 - 4 =1:2
12 -- ---- r'- x_y*z:5 is
*i1,nthe plane

,t I l\
,r/ll 13 1nl rs
pln r Z
1l
-\
"rc1rc L"r LL
i
i

\
I 1eL\
If a, b, c and x are real numbers and
n*s61. o l+ ax 1+ ax'l - -\[/'
. il' \ -.'-:" lt+
[ux-Ll -n \(
'',:.J*-d$u."4=|t+al+bxl+bx,|.ThenthevalueofAis 1

'i";'
" .," l.*tt' lt*" t+cx t+"*'l
'\' t* ;5 90(
,-L',.x
.ato
o
*)) ffitcl abc L' '- r,. tBl Abcx
-y
- rl lu
\ - j *.' ;$ J'- [Dl None of these /!
l

'il$' 4*
** i, If sum of the slopes of the lines given by xr z*ry T yr: o is four times
\, -'' - -
,
r\ - their
product, the value of cr is
\' .ut,g"
\T'.* : [t] A*f
A v n{-d-
7-' Bl _l
u

\l

Y**,
it tLru \ L
K,/
x' --" \[
\ L r',\i
t \ L
9
\ru v1,)
.q- i (r- .t,' (
,t'
) ."1, \- 9
\r" yv z r lt)
$ \r \t10
,\ t
tb)

t .{
l/v
r (('
\-
c) -\
xp .t n0
.Ll.
- \0\

Page 13 of64
PAPER CODE: 30 to 35

I li
63. If x > l,y >l,z >1 are in G.P. then -_____,_ are in
1+logx l+log y l+logz

tAl A.P. lBl H.P.
y'o, tDl None of these
64. The greatest rate of increase ofu: xyz2 at the point (1, 0, 3)
IA] 9 IB] 3
IC] -9 lDl 0
65. The linear system of equations :t: + y + E :6,H*23. *3s:1*, x*2t *&s: p has
unique solution if

lAl S + l*, r* may have any value lBl #: 3., F * tO
tcl G=3,S:tS + 3, F may have any value
,.W"
66.
The value of an integrat is f # A.x is
' \--- tv

{r/€} r.*-.'r{.-1 - t)rx'r€}l
h-
I lQL4tttfl) IBI {rr*tr} t*sr[{rE - r}/r}E}] ft* #
sin-l[ xn s)1:r{T}]
/ L\-- - -r''*'-tJ tDl
L I {rf-ry}
Lr losi{*, + rjf*+Eij ,+ "
Y
!
aa
o/. ^A\
'^n ""' *L ''"1
IfSisanyctosedsurface,*", fl curlF 'i aS
's\,n.-
\11 +
tAl -2 Fl 2 o -'s"
[c] I , lof a (2,-\ '\-1ef
/
b
'
The lines 1- - 51 - 11 a14 -1 3'-+ E-5 arecoplanarif
1x l+t{6
68.
1 1 -s o ==?=T
tAl s:lor-l ,-Wa:Osr-3 I I t-a(
(o l( L' I

For a binomial variable X if n:5 and p(X: 1): gp(X: 3). Then p I'
is given by
IAI 4ts Bl it3
tcl Us iDl 2t3
rough works)
P('ne s) = * p{ y - {too"for
r t ytYb
f", n' (a)o) g 5r, Lb b)- i y**
g btu tc tg^b
6 L L\ = 8 trc D^)' 7
gv 4 al t'
/ ffb{b- ',&o

-

Exam-IIUl.7130-351A Page 14 of 64
PAPER CODE: 30 to 35

70- The area bounded by the curves y2 = 4x and x' = 4y is
tAl 32t3 @
tDl
rcn
tcl 8t3 0

71. Two tinearly independent solutions of the differential equation n (-H) - U (=)4 5-r'
:0
are

tA] e*r'? sos*-, e-t'i3 sittx tB] €""!'. ccsx, e*/3 slnx
*-x,r'3 cos :s, *-x/3 sinr tD] *-x'/! cos.:i, e''"2 -sin.'j
iCi

72. If a is a reat number and if the middle rerm * (+* f lt i, I 120, then value of a is
r*
[3 )
fAl +2 tBl t1 r.9
"lcl 1..6 lDl tJ,
73. The point on the curve Ji * Ji = Ji ,the normal at which is parallel to the X-axis is
{Al (o, tBl (0, a)
.

rq o)
lcl (a,0) tDl (a, a) x4-V
il S4
u'6{.i
q-Ll.
74. The number of diagonals in a octagon is
*'nt'
tAl 20 ,- {Bl 28
lcl 10 tDl 16
75. Ifthelines3x*,v *Z: s, 2x - l-+ 1 :0 andx i-tn.t'-3:o are concuffent, then
0
the value of rn is
nnn'"
vah f
tA] I, IBI 7,
h't{-
tcl 3 $i{t
76. if ,{ be an 4 X 4 matrix such that determinant of ,t is ?, Then the determinant of ar{j ;1
is

V{AI 8 tBl 16 9:-*+
alr
tcl 2 x
i tDl 4
,) L6

#^ *+\t
o\\
\t
\,
\i lw 9t ,*t,\*,ff
,fi -t
ryt
{f I

t;*
'b

-1V' e
lr'/ =. L\*
2
1,

NEE-IrI/17l30-35/A Page 15 of64
PAPER C0DE: 30 to 35

77. Thevalue of line integral f(rr- Sy)ctx+(r.. 6y)dy,whereC istheellipse **r'=,
4

tAl 0 tBl lar
tcl -t2r lDl 12 n
-a
Which is the solution of the differential equation: [x * ] -v]] {*}
: o #
tAl y/r:sr+c tB] :r:y:{I-/Z}y*+c ,\,v
tcl s/Y : ]'! * c iri Nor,"
"rlrrJ'. { - n .y ?

r$ - t: "'*
d//4
Qr^l-
g.nn ". b
--{"1 , C

If stn-1{i}u s6sss -'{:} : }, then the value of x is
n
79. &\0
+ ,q*
Fri
tAl r tBl 3 1&
trgl *
-Ws
80. In an ellipse, the distance between its fbci is 6 and minor axis is 8, then its eccentricity is
_a

lli l,f ,*'*6o ?0o:r:: ,\
tAl
.tcl
a/7,
4{s
' 't/'
.)-S ,,g
{ ---xxx---Mathematics Paper End---xxx---- U-U, *
n, \) 0
,rt
g ,.Qu
t
.F'
/n -\ t\ a'\t \
^v
'1CI * -L u
ou c6 , v*'u o' ,,v '/ ' I nit'd'-
" ^ r'r
,)' ^r 9 q"[ ,'){
\o
{/
Q.r
Lb.: v# 1\o,t.,\o
o\'' (r' ? b'o l-
CANDTSAYE r{AS TS ATTtrMpr QUESTION NUMBERS St-trO
I
.l.

)

OF SECTIGIV-D FR.OWS APtrRtrFzuATE ENGIIYEERING BRANCH
AS SHOWN [N THE ADMIT CARD OF NEE-20I7
.Ll

+v
L,
nv
q. u
^A
Y
I'rt
,\A' f
'
i
\
0-, q
works)
1t \-/.
\,
v' ' Ua
:!-iv I
) , bL* ^ +y
,r'6\ ' ,/
\, : * +k /t-
rY,
r \'c ^ t'
^
Y'
4"$ +l \L' %) t-.
^) \0
"l
q"
\(/
?
,' Fu 'u
^v
J\ 4/
n ''
n-
| ,\ Q-t
ol' -*r 0-
I^ A
.,|
t"1
4) 1t
4

Exam-IIUl7130-3514 Page24 of 64
/ PA,PER CODE : 3l
J

SECTION - D (Civit Engineering)
[CandidatewhohasoptedforCE(Code.3l)inNEE-2017|

Question numbers 81-110 carry
I mark each:
g1. An element is subjected to two equal and like stresses o, on two mutually perpendicular
planes. The shape of the Mohr's circle will be

tAl A circle of radius 2o tBl A circle of radius o
tcl A circle of radius o/2 tDl A point
g2. The difference between bending moment values at any two sections will be equal to
difference in slopes of shear
- between tB] The
tA] The area of shear force diagram diagram at the same sections
those two sections force
moment of area of diagrarn
[C] The area of loariing diagram between tD] The
between the two sections taken about
the two sections
mid-point betrveen the trvo sections

Y g3. The neutral axis of tire cross-secrion a beam is that axis at which the
bending stress is
H
t)fU N,Iaximurn tBl Average
- !cl Mini.ruLn ,*S1 ze;:o
g4. The maximum deflection of a fixed bearr carrying a central point load lies
at

. [A] Fixed ends .t{dl 1/3 liom fixed ends
'[C] Centre of beam 'p] None of these
85" The ratio of compressive strength to tensile strength of conerete
rW Increases with age lB] Decreases with age
IC] Remains constant tDl None of these
g6. The reiation between modulus of rupture f., and characteristics strength of concrete
f.t il
given by (where f., and tt are in N/mm2)

IAI f., :0.35{ f.r. tBl f., :0.5 { f.r.
0.7{ f.t tDl t, = 1.2{ f.u
5;1 f., =

\EE-III/17,/30-35/A Page 25 of 64
PAPER CODE : 31
87. Irrigation canal is generally aligned along
iAl Ridge line lBl Contour line
tcl Valley line tDl Straight line
88. Reynolds number is the ratio of inertial force and

tAl Elasticity lBl Gravitationalforce
iC] Surface tension ,.!D] Viscous force
89. Hydrostatic pressure on dant depends upon, its
lAl Length tBl Depth
icl Material .Jpl Alt of these
90. If the dynamic viscosity of a fluid is 0.5 poise and speciflc gravity is 0.5, then the kinematic
viscosity of that fluid in stokes is

tAl 0.2s tBl 0.50
.lql 1.0 tDl None ofthese
91. The ratio of the volume of voids to the volurne of soil solids in a given soil mass, is known
AS

tAl Porosity --IBT Void ratio
tcl Specific gravity tDl None of these
92. A vertical triangular area with vertex downward and altitude 'h' has its base lying on the
free surface of a liquid. The centre of pressure below the free surface is at a distance of

tAl h/4 tBl h/3
Jct htz tDl 2w3
93. Under-reamed piles are generally
iAl Driven pile tBl Bored pile
tcl Precast pile IDI All of these
94. The unit weight of a soil at zero air voids depends on
lAl Specific gravity tBl Water content
lcl Unit rveight of water iDl All of these

(Space for rough works)

\

=

Exam-Ilf/l7139-351A Page 26 of 64
PAPER CODE : 31

95. For a given soil sample, C.: coethcient of gradatiofl, Cu : coefficient of uniformity, D16 :
effective size, D3s : diameter through which 30 per cent of the total soil rnass is passing. If
C. : i.0 and Cu : 4.0, then the value of D:o / Dro would be

tAl 2.00 tBl t.7s
tcl 1.s0 lDl 1.2s
96. Shearing strength of a cohesionless soil depends upon

tAl Dry density .,i61 Loading rate
tC] Confining pressure IDI Nature of loading
97. In water bound macadam (WBM) roads, binding materials to hold the stones is
tAl Stone dust lBl Sand
tcl Brick dust lDl Cement
98. The convexity provided to the carriageway between the crown and edge of the pavement
is known as

tA] Super-elevation tBl Camber
ty tcl Fleight of the pavement tDl None of these
H 99. If the stoppin! distance and average length of a vehicle are 18 m and 6 m, respectively,
then the theoretical maximum capacity of a traffic lane at a speed of 10 m/sec is

iAl 3000 vehicles per hour tBl 2000 vehicles per hour
tcl 2500 vehicles per hour ,JD]
1500 vehicles per hour

100. The boundary of rvater of a still lake, represents
tAl Contour line tBl Level line
tC] Contour gradient tD] Contour surface
101. The compensation for curvature on gradient for Meter Gauge is given by

tAl 70lR tBl 52"s/R
tcl 35/R tDl 10s/R +L \
\c6' q
102. In a metric leveling staff, value of subdivision is \,,b
IAI 3 mm tBl 4 mm
lq 5mm tDl l0 mm \
(Space for rough works)

\EE-Irr/n?/30-35/A Page27 of64
pApER CODE : 3X
103" screw is tightened and upperciamp
fffij:m;'u-o screw is roosened, the theodorire

[A] On its outer spindle. without a reiative
motion befween the vernier and Itsj On its outer spindle ,rvitir a relative
motion between the vernier and
-^_._ q.uduated scaie of lower plate graduated scale of lower plate
Lq' On its inner spindie with a relative
'-/ motion between the vernier and iD] On its imer spindle without a
graduated scaie of lower plate relative motion between the vernier
and graduated scale of lower plate
1a4' For steel structure, trre most economical
section for corumn is

iAl Rectangular
tcl Tubular section iBl Solid circular
tDl Hexagonal
105' The detention period in coaguration
tanks is usuary kept as

iAl 1.0 ro 1.5 hours 2.0 to d.0 hours
tcl Ttog hours ,_ lts]
8 to 12 hours
ID]
106. If rhe focal lr of the object glass is 25 cm and
rnra-i^- ^-., ?,g,rl
trunnion axis is 15 cm, ttre adaitivl.orrtunt
the distance from object glass
to the
l.
tAl o.l tBl 0.6
tcl 0.4 tDl 1.33
107
;filiiff#;i,?,J:#;lJH:'ffi'::li.;;;H is 5000, 7000 and 8100] respectivery
method is year according to geometricai
ir.r.ur.
tAl es00
tcl 10100 tBl e800
I 08. The type of valve which is
_[P] 10920
provided on the suction pipe
in a tube_we, is
. tAl Reflux valve
tC] Pressure relief valve tBl Air-relief valve
tDl Sluice valve
109' For controring the growth of algae,
the chemical generary
used is
TA] AIum
IC] Bleaching powder tBl Lime
, tDl Copper sulphate
---.------
@pace Jor rough works)

I

\

Exam-IIV17l30-351A Page 28 of 64
PAPER CODE : 31

110. Self-cleaixing velocitY is
tAl The minimum velocity of flow required IBI The maximum velocity of flow
to maintain a certain amount of solids in required to' maintain a certain
the flow amount of solids in the flow
[eK Such . flow velocity as would be ilt [-r-4y* Such flow velocity as would be
,V- sufficient to flush out any deposited sufficient to ensure that sewage does
solids in the sewer not remain in the sewer
,,
Question numbers 111-130 carry 2 marks each:

11 1. One sirnply supported beam 'A' carries a point load at its mid span. Another identical beam
'B' carries same load uniforrnly distributed over the entire span. The ratio of maximum
deflection of the bearns A and B will be

tAl s/8 ,ril None
9ts
tcl 3t5 lDl of the these

112. The slope of the elastic curve at the free end of a cantilever beam of span L and flexural
rigidity Ei, sub.jected to uniformly distributed load of intensity w is

*$ wlslosi tBl wL3/3Ei
ic] wt-4/88tr tDl wL3l2EI
113. A drainage basin has axial length and area i00 krn and 225 krn2, respectively. The form
factor of the same basin is

-tcl o.ls
LIAI a"zs
iBl o.2o
IDI o"3o
ItA" The reduction coefficient of a reinforced concrete column with an effective length of 4.8 m
and size 250x300 mrn is

iAl 0.80 [tsJ 0"es
tcl 0.eo tDl 0.8s
115. If the velocities of flow of a stream of 10 m depth recorded by a current meter at depths of
2 m and 8 m are 0.7 m and 0.3 m, respectively, the discharge per unit rvidth of the stream in
cubic metres, is

tAl 2.s tBl s.0
tcl i0"0 [Dr] Nons of these

{Space lbr rougfa. works}

*",1

\

NEE-IIr/I7l30-35/A Page 29 of 64

PAPER CODE : 3I
116. A coarse grained soil sampre has void ratio
0.75 and specific gravity 2.75. The
gradient at which quick sand condition critical
occurs, is
b;\,
JAI 1.00
icl 0.7s tBl
0.50 )o
\-A --'\*u
t -y) o-
r
,x9i.t)
tDl
0.2s

117 ' If one wants to be 90%o sure that the design flood in project will not occur during the
design life period of 100 years, the recurrence 1 9u*
interval for such a flood would be
lAl About 90 years IB] Equal to 100 years
tcl Abour 110 years Roughly 1000 years
._[Pl
118' The intensityof active earth pressure at a depth^of
r0 m in a dry cohesionress sand with
angle internal friction 30o and weight an
l g kN/;r;;r^

_ tAl 40 kN/m2 tBl 5o kN/m2
tcl 6o kN/m2 tDl 80 kN/m2
119' A fluid jet discharging from a 4 cm diameter
orifice
has a diameter 3 cm at its vena
If the coefficient of velocity is 0.98, the coefficient
;:i[lt'" of oir.rrurg. for the orif.ice

._lAl 0.98 x (0.712 tBl (0.7r2l 0.e8
lcl 0.98 x (1.33)2 iDl 0.98 /(1.33)2
120' A clay strata of 2 m thickness consolidates
80% i4 l0 years. For g0% consolidation
thick of same clay layer, required of g m
time is

lAl 100 years JBI 160 years
tcl 140 years tDl 120 years
121" A vehietre is travelling at a speed of
80 krirr-'hour on concrete pavement.
cf lriction between tyre and pavement surfhce For the coefficient
being 0.35, st*pping distance fbr
the vehicie

t,'\l 44"44 m rhl
Irr
TLJ 116.43 m LrJj 76.99 m
tDl 232.86 m

lSporrTii@

Exam-IIUl 1130-351L Page 30 of 64

PAPER CODE : 3l

and PI of sand: zero' then for a desired
122. Given that Plasticity Index (PI) of local so-il:-|5-
should be
PI of 6, the percentage of sand in the mix

tAl 70 ffi6030
tcl 40 tDl
0.5. Find its seepage
rz3. A soil has a discharge velocity of 6x10-7 m/s and a void ratio of
velocity "f>

18x10-7 m/s tBl 12x10-7 m/s
-lAl
tcl 6x10-'m/s iDl 3x10-'m/s
up gradient and 5o/o down gradient'
124. A summit curve is formed at the intersection of a 3o/,summit curve needed will be
of
To provide a stopping distance of 128 m, the length

tAl 27r m tBl 340 m
tcl 322 m [fl zst m
with 4 bars whose area of cross
IH
H
r25. An old short column 20 cm x 20 cm in section is reinforced
stresses in concrete and steel are 4'0
sectional area is 20 sq. cm. If permissible compressive
I

MPaandl30MPa,thesafeloadonthecolumn,shouldnotexceed

tAl 41.2 kN tBl 412ld{
tcl 412 o kN tDI None ofthese
for constructing a broad
126. For a sleeper density of (n+5), the number of sleepers require'd
gauge railway track of length 650 m is

iAl eoo
'tCi tBl e18
e7s tDl 880
level and a 3 m staff on
127. The following consecutive readings were taken with a dumpy
I

continuouslY sloPing ground'
7.025,2.165,2.955.
0.4?5,1.035, 1.950, 2.360,2.950,0'750, 1.565, 2.450,0.320,
Which of the following reading are backsights?

tAl 0.425,2.950,0.750, 0'320 tBl 0'425,0 1s-9'9 i20'2'95s
!q, oi.qz',0.7s0,0.320
tDl 0.42s,2.360,0.7s0,0.320

NEE-IrI/|7l30-35/A Page 31 of64
PAPER CODE : 3tr

128. The back staff reading on a bench mark (8. M.) of R. L.300 m is 2.6g5 m and fore sight
reading on a point is 1.345 m. The reduced level of that point is

tAl 302.585 m
.; N '7'e$,
tBl 30tr.345 m
tcl 304.030 rn W 301.340 m

129' A city supply of 15000 cubic metres of water per day is treated with a chlorine dosage of
0.5 ppm. For this purpose, the requirem ent of 25Yo bleaching powder per day would
be"

tAl 300 kg tBl 75 kg
lC] 30 kg tDl 7.5 kg
130' In a BoD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen
concentration of diluted sample was 6.0 ppm. On incubating the diluted sample
for 5 da! at
2OoC, its BOD was 4.0 ppm. The BOD oiru* sewage was

W 100 ppm
ppm
tBl 200 ppm
tcl 300 tDl *:* of these

------xxxx..... civil Engineering (code - 3l) paper Ends--------xxxx-

\
,/

fa-.
t\\'^ *'t-
I

a Yrfr
vLv fv
s'6
\
fit .-l-l
.6
& k w*o (-J-
) 7t-

Yt-:_l -'l(l'l'(' -fr hJ--O
x* .# /x-
4)

a) 2 Y*0,

(Space for rough works)

Exam-IIVl7130-351A Page32 of 64
PAPER CODE : 3i

SECTION - D (Computer Science and Engineering)
[Candidate who has opted for CSE (Code-32) in NEE - 20171

Question numbers 81-110 carry I mark each:

81. What is the octal equivalent of (A98)re
tAl (s124)s tBl (s230)8
tcl (s424)s tDl (4424)8
82. The number of columns in a state table for a sequential circuit with 'm' flip-flops and 'n
input is

tAl m*n tBl m*2n
lcl 2m*n tDl 2m+2n
83. The total number of possible Boolean functions involving 'n' Boolean variables is

tAl n,r, [B] r,'
IU [C] trrn
tDl None of these
t 84. The number of processes completed per unit time is known as

iAl Output tBl Throughput
tCl Efficiene5, [D] Capacity
85. The operation of J-K fiip-t1op is srmilar to that of the S-R flip-flop except that the J-K fiip-
flop

tA] Doesn't have an invalid state lA] Sets to clear rvhen both J : 0 and K : r

[C] Does not shorn, transition on change in iC] Does not ace ept asynelronous inpurs
pulse

85. Which of the foilor,ving is a non-preemptive CPU scheduling?

tAl Round Ro"nin lB] First Come First Serve
iCl Multilevel Queue Scheduling tDl None of tirese
87. A positive edge-triggered flip-flop changes its state when

lAl Enable input ( EN ) is set tBl High-to-low transition of clock
lcl Lowto-high transition of clock iDl Preset input ( PRE ) is set
(Space for roagh works)

NEE-III/17/30-35/A Page 33 of 64
PAPER CODE : 32

88. System calls are invoked by using
tAl A software intemrpt iBl Polling
tcl In-direct jump tDl None of these
89. The 3 variable Karnaugh Map (K-Map ) has cells for min or max terms

tAl 4 tBl 8
tcl 12 tDl t6
90. A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units
then, deadlock

tAl Can never occur IBI May occur
tC] Has to occur tD] None of these
91. Sparse matrices have

tA] Many non-zero entries tB] Many zero entries
tcl Higher dimension tDl None of these
92. The rnaximum number of comparisons needed to soft 7 items using radix sort is (assume
each item is a 4 digit decimal number)

iAl 28 tBl 38
lcl 12a [Dl 280
93. Two main measures fbr the efEciency of an algorithm are

[A] Processor and memcry tB] cornplexity and capacity
/ icl Time and space [ti] l)ata and space
I q4. Given two sorted list of size 'fir' and 'n' respectively, the number oicomparisons needed. in
the u,orst case by the rnerge sort algorithrn wili be

tAl m x n [B] Maximum of rn, n
lcl Minirnum of m, n tDl m * n -l
95. Which of the foilowing is essential for converting an infix expression to the postfix forrn
effrcientl5r?

tA] An operator stack tBl An operand stack
tC] An operator stack and an operand stack tD] A parse tree
i
(Space for rougle works)
t
I
i

-

Exam-IIV17/3CI-35/A Fage 34 of 64
PAPER CODE : 3.
96. Match the fbllowing
(a) Compieteness i) How iong does it take to find a solution

(b) Time Cornpiexitv ii) How much memory needs to perform the search

(c) Space Complexity iii) Is the strategy guaranteed to find rhe solutior
when there is one

tAl a-iii,b-ii,c-i tBl &_i,b_ii,c_iii
tcl a-iii,b-i,c-ii tDl z_i,b_iii,c_ii
97. The sequence of events that happen during a typical fetch operation is

tAl PC--MAR--+Memofy+MDR---+lR tBl pC--Memor)_+tu[](_-18
tcl PC--+Memor)-+[ft iD] pC+\ztdB---Memory--IR
98. A micro-programmed control unit

lA] Is faster than a hard-wired control unit tB] Facilitates easy implementation of nev
instructions
H
tC] Is useful when very small programs are tD] Usually refers to the control unit of
to be run
r

H
microprocessor

99. On receiving an intemrpt from an I/O device, the CpU

tA] Halts for a predetermined time tB] Hands over control of address bus an<
data bus to the intemrpting device
tC] Branches off to the intemrpt service tD] Branches off to the intemrpt servict
routine immediately routine after completion of tire curren
instruction
100. To achieve parallelism, one needs a minimum of

tA] 2 processors [B] 3 processors
tC] 4 processors [D] I processor
l0l. The default values of auto, register and static storage class are

tA] 0, garbage, garbage IB] garbage, garbage,
" 0
tcl garbage,0, 0 tDl O, O, gu.Ulge

NEE-IIr/17l30-3s/A Page 35 of 64
PAPER CODE : 32
iaz. choose the correct output for the following cocie segment
while ( 1 )

{
printf( "abc" );
\t

tAl Compile time error, tB] Run time error
tcl Print abc tD] Print abc for infinite times
103. which one of the fbllowing intemrpt is non-maskable?
IA] TRAP tBl RSr 7.s
IC] INTR tDl RSr 6.5
104. What is the output of the following program?
# include < iostream.h >
void main ( )

{
inta [ ]: { 10,20,30 };
cout << * a* 1;

)

tAl 20 IB] 10
tcl 11 tDl 2t
105. Choose the correct for the following code segment
void main ( )

{
inti=3;
printf ( " yod yod %d,,,++i, i, i++
;.
)

tAl 3,4,5
tBl 4,4,5
tcl 3,5,5
tDl 5,4,3
(Spa""1or-ii@

Exam-III/17130-351A Page 36 of 64
PAPER CODE : 32

106. The purpose of the fbllowing code segment
a: a+b;
b:a-b;
a: a-b;
where 'a' and 'b' are two integers is to

tA] Transfer the Qontent of 'a'oa'to 'b' tBl Transfer the content of 'b' to 'a'
tC] Exchange the content of and 'b' ID] Negate the content of 'a' and 'b'

107. A byte addressable computer has a memory capacity of 2^ Kbytes and can perform 2n
operations. An instruction involving 3 operands and one operator needs a maximum of

tAl 3m bits tBl 3m+n+30 bits
lcl m+n bits lDl 3m+n bits
108. In a paged memory, the page hit ratio is 0.35. The time required to access a page in
secondary memory is equal to 100 ns. The time required to access a page in primary memory
is i0 ns. The average time required to access a page is

t tAl 30.0 ns tBl 68.0 ns
t tcl 68.5 ns tDl 78.5 ns
109. Thevalues ofX andY, if ( X567 )a + ( 2YX5 )g:( 71YX )s is
IA] 4,3 tBl 3,3
tcl 4,4 tDl 4,5
110. When a subroutine is called, the address of tlie instruction follorving the CALL instructions
stored in/on the

tAl Stack pointer tB] Accumulator
lC] Program counter lDl Stack
Question numbers 111-130 carry 2 marks each:

11 1. A hash function f defined as f ( key ) : key mod 7, with linear probing, is used to insert the
keys 37, 38,72,48, 98, 1 1, 56 into a table indexed frorn 0 to 6. What will be the location of
key 11?

tAl 3 IB] 5
tcl 4 tDl 6
(Space for rough works)

NEE-III1I7/30-35/A Page37 of 64
PAPER CODE : 32

ll2. The average successful search time for sequential search on 'n' items is

lAl nt2 tBl {n-t)t2
tcl (n+t)t2 lDl log(n)+1
I 13. The Boolean expression A B + e F+.,{ C+ AC isunaffectedbythe valueof Boolean
variable

tA] A tB] B
IC] C lDl None of these
ll4. The minirnum number of gates required to implement the Boolean expression
AB+ AB+* Cis
tAl I AND gate and 1 OR gate [B] 2 NAND gates
[C] 3 ,AND gates ani12 OR gates tDl I OR gate
1 15. Consider the following page reference srring
12342t55212376321236
for LRU page repiacement algorithm with 4 frames, the number of page foults is

tAl i0 tHi
t- I T4
IC] 8 ID] 11

116. A system has 12 instances of same resource and 3 processes. Consider the following resource
allocation table

Frocess no. Maximum need Current ailocation
Fi 10
P2 4 2
rJ 9 2

Which of the following sequence is a safe sequence?

IAI Pl ,P2,P3 tBl 12,P3,Pl
tcl P2,Pl ,P3 tDl P3,Pl ,P2
Ll7. Disk requests come to disk driver for cylinder in the order 10, 22,2A,2,40,6, 38 at a time
when the disk drive is reading from cylinder 20. The seek time is 8 ms per cylinder. The total
seek time, if the disk arm scheduling algorithm is frst come first serve is

IAI rs75 tBl 1i6E
tcl e6o iDl 1050
(Spcce for r*ugft'*,orks)

Exam-IIVl7BA4ilA Fage 38 of64
PAPER CQDE : 32

118. At a particular time of computation rhe vaiue of a ccunting semaphore is i3. It will become 7
after
iAl 6 \r operations tBl 5 F operations
tC] 10 V operatiors and 2 F operations iDl 10 P operations and 4 V operations
119. The seek time of,a disk is 40 ms. It rotates at the rate of 20 rotations per second" Each track
has capacity of 300 u,ords. The average access time is approximately
iAl 65 ms ttsl 50 ms
tcl 45 ms tDl 50 ms

12A. A machine needs a minimum of i00 sec to sort 1000 names using quick sort aigorithm. The
minimum time needed to sort i00 names will be approximately
tAl 3.4 sec tBl
6.7 sec
tcl 12.3 sec tDl 72.6 sec
l2l. A 3-ary tree is a tree in which every internal node has exactly 3 children. The number of leat
nodes in such a tree with 6 internal nodes will be
tAl 15 tBl 14
tcl 13 tDl 16
122. The seek time of a disk is 30 ms. It rotates at the rate of 30 rotations per second. Each track
has capacity of 300 words. The average access time is approximately
tAl 47 ms tBl 50 ms
tcl 60 ms tDl 62 ms
123. The average successful search time taken by binary search on a sorted array of 10 items is
lAl 2.6 tBl 2.7
IC] 2,8 tDl 2.e
124. Thepostfixexpression forthe infixexpressionA+B * (C+D)/F+ D * E is
lAl AB+CD+*F/D+E* lBl ABCD+*F/+DEx+
tcl A*B+cdlF*DE++ tDl A+*BCD/F*DE++
125. How many 32Kx 1 RAM chips are needed to provide merCIry capacity of 256 K-Bytes?
tAl 32 IBI 2s6
tcl 128 tDl 64
126. If the cache needs an access time of 20 ns and the main memory 120 ns, then the average
access time of the CPU is (assuming the hit ratio is 80% )
tAl 30 ns tBl 40 ns
tcl 45 ns tDl 50 ns

(Space for rough works)

NEE-rrril7/30-3slA Page 39 of 64
PAPER CODE : 32
'127 . Chor:se the coirect output flor the follou,ing code segment

# inciude < iostream.h >
using namespace std:
class Base
I t-

public:
void f ( )
I
i
cout <<
)
i.t,
class Derived: public Base
{
i
public:
void f ( )
{
cout << "Derived\n";
)

void main ( )
{
Base *p: new
P->fo;
)

tAl Base tBl Derived
lC] Compilation error ID] None of these

128. Choose the correct output for the following code segment
void main ( )

{

int i:5;
i:(++i)/(i++;;
printf( " '/od", i);

)
tAl 1
iBl 2
tcl 3 ID] 4

(Space for roagh works)

f-

Exam-IIVl7130-351A Page 40 of 64
PAPER CODE : 32
129. Choose the correct output for the fbllowing code segment
inta:4,b:6;
printf ('" o/od", u : : b );

lAl Error tBl 1

IC] O tDl None of these
130. Choose the correct statement for the follorn,ing code segment
class abc ;

class def ;

{ intx; // statement 1

protected : int y; ll statement 2
public : int z; l/ staternent 3
friend abc '
\.
Jt

Class abc

,
{ public :

void main ( def A )

{ cout<<(A.x:3 ); cout(<(A.y:4); cout<<( A.z:5 );
\.
t,
void main ( )

{
defxl ;
abcx2;
x2.marn(x1 );
)
tAl Will compile successfully if statement I lBl Will compile successfully if statement
is removed 2 is removed
LLJ Will compile successfully if staternent 3 iDl Will run successfuliy anci print 3 4 5
is removed

------xxx------Computer Science and Engineering (Code - 32) Paper Ends--------xxx--------

(Spuce for rough works)

NEE-IrI/|7l30-35/A Page 41 of 64
PAPER CODE : 33

SECTION - D (Electronics and communication Engineering)
[candidate who has opted for ECE (code-33) in NEE - zohy

Question numbers 81-ll0 carry l-mark each:

81. Excess camiers are generated in a sample of N-type semiconductor by shining light
at one
end. The current florv in the sample r,l,ill be made up of

tAl Diffusion tlorv of carriers tB] Drift flow of carriers
tcl Both diffusion and drift flow of carriers tDl Neither ditfusion nor drift flow
of
carners
82. The voltage where avalanche occurs is called the
tAl Barrier porential [B] Depletion layer
tcl Knee voltage tDl Breakdown voltage
83. An N-type semiconductor is illuminated by a steady llux of photons with energy greater tSan
the band gap energy. The change in concluctivity Ao obeys wltich relation?

tAl Ao:0 tBl Ao:e(p,,*pr) An
tC] Ao:e (p,, An -p, Ap) tDl Ao:e p,, An
84. which of the foilorving has a negative-resistance region?

lAl Tunneldiode tBl Step-recovery diode
tcl Schottky diode tDl Optocoupler
85. The current gain cf a transistar is detlned as the ratio cf the collector current
to the
lAl Supply current lBl Emitter current
lC] Base current tD] Coiiector current
86' To avoid thermal runway in the design of an analog circuit, the operating point of the BJT
shouid be such that it satisfies the condition

tAl Vce : V6s/3 lBl Vca < Yccl}
lcl Vcr > Vcc/3 tDl Vca < 0.78 Vcc
87. At high frequencies, ordinary diodes don't work properly because of
[A] Forward bias lBl Reverse bias
lcl Breakdown IDI Charge storage
{Spoce for rough works)

I

Exam-IIVl7130-35/A Page 42 of 64
PAPER CODE : 3
88. Consider the following statements:
The lower cut-off frequencies for an RC coupled cE
arnplifier depend on
f . input and output coupling capacitors
2. emitter bypass capacitor
3. junction capacitor
Which of these statements is/are correct?

lAl 1 alone tBl 2 alone
tcl I and2 tDl 2 and3
89. In an ac amplifier using an op amp with coupling and bypass
capacitors, the output offse
voltage is

tAl Zero lBl Minimum
tcl Maximum iDl Unchanged
90. The kind of oscillator found in an electronic wristwatch
is the

tAl Armsrrong tBl Ciapp
tcl Colpitts lDl Quarlz crysral
9l' A T flip-flop function is oi:tained trom a JK flip-flop. Ifl rhe
flip-flop belongs ro a TTL
family, the connection needed at ti:e input must be

tAl J:l and K:0 itsj i:K:0
lcl J:K:l iDl J:0 and K:l
92' A 4 bit moduio-6 ripple counter uses JK flip-riop.
Ii'the propagation delay of each FF is 50
ns, the maximum crock frequencv that i:an
be used is equar to

tAl 5 MHz tBl 10 MHz
tcl 4 MHz tDl 20 MHz
93. Consider the fbllowing statements:
A multiplexer
1' selects one of the severar inputs and transmits it to a single output.
2. routes the data f|o.m a single input to one of many outputs.
3. converts parallel data into seriai data.
4. is a combinational circuit.
Which of these statements are correct?

tAl 1,2 and 4 tBl 2,3 and.4
tcl 1,3 and4 tDl 1,2 and3

NEE-IrI/|7130-35/A Page 43 of 64
FAPER CODE : 33
'i1. Consider the fbllorving registers:
1. Accumuiator and B register
2. BandCregisters
3. D and E registers
4" Fi and L registers
which of these 8-bit registers of 8085 microprocessor can be paireci
rogether to make a 16-bit
register?

tAl 1.3 and 4 lBl 1, 2 and 3
tcl 1 and2 tDl 2,3 and 4
95. Consider the fbllorving statemenrs:
1. Cache memory is low cost and fast memory.
2. Cache memory is fast but costly memory.
3' Performance of cache during ilrogram execution is measured by hit ratio.
which of the folrorving statemenrs given above are co,,ect?

tAl I and2 tBl 2 and 3
tcl 1 and 3 iDl None of these
96. If the instrument is to have a wide range, the i'strument should
have
tAI Linear scale iB] Square-law scale
tC] Exponential scale tDl Logarithmic scale
97. If the output of a voltage regulator varies liom l5 to 14.7 v between
the minimum and
maximum load current, the load regulation is

tAl 0 tBl 2%
lcl t% lDl s%
98' An ammeter of range o-25A has a guaranteed accuracy
of lo/o of full scale reading. The
current measured by the ammeter is 5A. the rimiting
.r.oi in the reading is
tAl 2% lBl 25%
tcl 4% tDl s%
99. A two-port network is reciprocal, if and only if
lAl ZtrZzz lBl BC-AD: I _
tcl Ytz:Yzr lDl h12:h21
100. In a uniform plane wave, the value of lEl/lHl is
tAl (ptt)"' tBl (rtp)'''
tcl I tDl (pr)'''
(Space foruougii@

c

Exam-IIUl7130-351A Pzge 44 of 64
PAPER CODE jl3

101. If the height of the lvaveguide is halved, its cut-off wavelength rvill
iAl Be halved lBl Re doubled
tcl Remain unchanged [D] Be one-fourth of tire previous value
102. An antenna is desired to operate on a fi'equency of 40 MHz rvhose quality factor is 50. The
bandwidth of antenna is

iAl 800 kHz tBl 5.03 MHz
tcl 127 kHz iDl None of these
103. In a DSB-SC system ivith 100% modulation, the porver saving is
lAl so% iBl 66%
tcl 1s% [D] r00%
104. A 10 kW carier is sinusoidally modulated by two carriers corresponding to a modulation
index of 30o/o and400l0, respectively. Tlie total radiated porver is

[A] 1 1.2s kW [B] 12.5 kW
tcl t5 kw iDl 17 kw
105. The bandwidth of a 'N' bit binary coded PClv{ signal fbr rnodulating a signal }iaving
bandwidth of 'f' Hz is

iAl f7N Hz lBl flN2 Hz
tcl Nf Hz IDI N2f Hz
106. Which of the following are tire advantages of FN{ c'vei'A-f"{?
1. Better noise immunity is provided.
2. Lower bandrvidth is required.
3. The transmitted porver is more usefui.
4. Less modulating power is requred.
Select the correct answer using the codes given below:

lAl 1, 2 and 3 tBl 2,3 and 4
tcl 2 and 4 tDl 1,3 and4
107. In phase modulation, the frequency deviation is
tAl directly proportional to the modulating tBl inversely proportional to the
signal frequency modulating signal frequency
tcl independent of the modulating signal tDl inversely proportional to the square
frequency root of the modulating frequency

(Space for rough x,orks)

NEE-rrr/17l30-35/A Page 45 of64
PAPER CODE : 33
108. The number ofunused states in a 4-bit Johnson counter is
tAl 2 IBI 4
tcl 8 [D] 12
109. Identi$ the frequency response curve for a band-reject filter.
tAl tBl

IC] tDl

,i

110. Satellite communication systems use the frequency band
lAl 3 to 5 GF{z tBl 50 ro 70 MHz
tcl i0 to 20 MFIz , [D] 100 to 0A GHz
Question nurnbers X11-130 carry 2 rnarks each:

111. The ftee electron density in a conductor is (l/1.5) xlA22 cra-3. The electron mobility is l0
What is the value of its resistivity ?
"m'lvr.
tAl tr04 fim tBl 1.dx10-2 fim
tcl 104 Qcm [n: 10a mho cm-r
ll2. The diodes in a bridge rectifier each have a maximurn dc current rating of 2 A. This means
the dc load current can have a maximurn value of

tAl tA iBl 2A
[c] 8A tDl 4A
113. Assuming an operating temperature T:300K and corresponding V1 :26my, what is the
change in semiconductor silicon diode forward voitage Vn to produce a 10:1 change in the
diode current Ip, while operating in the forward bias region (<25mV)?

tAl 60rnV tBl 120mV
lcl 180mV tDl 240mY
(Space for rough works)

Exam-IIVl7/30-3siA Page 46 of 64
PAPER CODE : 3.

ttl. Consider the following rectifier circuits:
l. Half,-wave rectifier without filter.
2. Full-wave rectifier without filter.
3. Fuli-wave rectifier with series inductance filter.
4. Full-wave rectifier with capacitance filter.
The sequence of these rectifier circuits in decreasing order of their ripple factor is

tAl 1,2,3,4 tBl 3,4, j.,2
icl 1, 4,3,2 tDl 3,2. L, 4
115. Assuming ideal elements in the circuit shown below, the voltage V"u will be

" 2{)

5\',
1D
tAj 3v tBl 0v
tcl -3 v tDl sv
1i6. If XY = 0 then X @y is equal to:
tAl x +Y tBl V +T
tcj xY tDl Ty
ll7. If8085 adds 87 H and 79 i{, rhen

tAl Both CARRY and ZERO flags will be IBI Both CARRY and ZERO flags will be
set to 0 set to 1
tcl CARRY flag will be set to 1, ZERO flag tDl cARRy flag will be set to O, ZERO
toO flagto i
118. Assertion (A): Microprocessor 8085 has on-chip oscillator with inbuitt crystal.
Reason (R): For frequency stability crystal oscillator is preferred.

tAl Both [A] and [R] are corect and [R] is IBI Both [A] and [R] are correct but [R] is
conect explanation of [A] not correct explanation of [A]
tcl tAl is comect [R] is wrong tDl [Aj is wrong [R] is correct

NEE-rrril7/30-3s/A Page 47 of 64
FAPER CODE : 33

1i9. if the input to the digital circuit shown in figure consisting of a cascade of 20 XOR gates is
X, then the output Y is equal to

tAl 1
IB] X
IC] 0 tD] T
120. Two coils have seliinductances of 0.09H and 0.01H and a mutual inductance of 0.015H. The
coefficient of coupiing between the coils is

tAl 0.06 iBl 0.5
tcl i.o tDl 0.05
l2l. In an amplitude modulated system, if tire total power is 600W and the power in carrier is
400W, then the modulation index is

tAl 0.5 tBl 0.7s
tcl o.e lDl 1

1,22. A super heterodyne receiver is designed to receive transrnitted signals between 5 and tr0
MHz. High-side tuning is to be used. The tuning range of the local oscillator for IF frequency
500 kHz would be

tAl 4.5MHz- 9.5 MHz tBl 4.5 MHz - 10.5 MHz
lcl 5.5 MHz - 10.5 MHz tDl None ofthese
123. An amplifier has two identical cascaded stages. Each stage has a bandwidth of 20KHz. T\e
overall bandwidth shall approximately be equal to

tAl 10.3 KHz IBI t2.9 KIIz
tcl 20.eKttz tDl 28.3 Krlz
124. An S-bit D/A converter has a full scale output voltage of 20V. the output when the input is
1101i011, is
iAl 160mV iBl 78mV
tcl 20v IDI r7v
125. Which RAM is created using MOS transistors
tAl Dynamic RAM tBl Static RAM
tcl Permanent RAM tDl SD RAM
(Space for rough works)

r

Exam-IIVl7130-3514 Page 48 of 64
PAPER CODE : 33

126. In a differential amplifier, the CMRR is limited mostly by

tAl CMRR of the oP amp tBl Gain-bandwidthProduct
tC] Tolerance of resistors tDl Supply voltages
lZ7. A pole zero pattern of a cerlain filter is shown in figure. This filter must be
Imaginar:t
+l o

tAl LPF lBl BFP
icl HPF tDl APF
128. When VSWR is 3, the nragnitude of the reflection coefJ-tcient is

tAl Yo tBl 1t3
tC] Y, tDl 1

l2g. A band-pass signal has signiticant frequency components in the range of 1.5Mi{z tr: 2MHz'
if the signal is to be reconstructed fi'om its sampie, the rninirnum sampiing frequency r.till tre

tAl lMHz tBl ZMHz
tcl 3MHz tDl 4MHz
130. On which bands, do the optical fibers operate?
1. Ultra violet band
2. rJltra high frequencY band
3. Visible light band
4. trnfrared band

iAl i only tBl land2only
lcl 1, 2 and onlY tDl 1, 3 and 4

------xxx-----Eleetronics and Commmnication Engineering (Code - 33) Faper Ends-....xxx-----

I{EE-IE{117130-3siA Page 49 of64.
PAPER CODE : 34

SECTIGN - D @XectrEcal Engineering)
[candidate who has opted for EE (code: 3ay in NEE
--r017J
Question nurnhers 81--11S carry I rriark eaeli:

81. A network is said to be iinear if it satisfies

lA] Superpositioncon<lition tBl Homogeneitycondition
iC] Both superposition and hornageneity tDl Associative condition
conditions
82. A capacitor
IAI Offers eas,r'path to AC bur block DC tBl Offers easy path ro DC but biock AC
icl Offers easy parh to borh AC and DC tDl Blocks AC
83. ,A star circuit has each eiernent of resistance R/2. The equivalent elements of delta circuit
be
will

IA] R"
[B] 3R
lcl 3w2 [D] R/6
84" When the reiative perrneabiiity of materiai is much greater than tr, it is called
as
iAl Ferromagnetic rnaterial tB] paramagnetic rnaterial
[cj Diamagneric materiatr foj None of these
85 If a transformer primarrv is energized from a triangular wave vortage source,
its output voltage
will be a

tAl Sine wave [B] Square wave
iC] Triangular wave tDl Pulse wave
85. In a three-ptiase induction motor running at slip s, the meehanicar power deveroped
in terms of
air gap power F, is

[A] d(s-1) tB] Pg
l-s
lcl r, (l - s) tDl tP,
8?' The series DC motors ha"re the highest starting
torque as compared
motors because of its r----- to
!e var
shunt and comoound Dc

lA] Lower armature resistance iBj Stronger series fjelct
lcl Fewer series turns iDj targer armatur* cuffent
{spuce for io;ek wot W

Exam-IIUl7130-3514 Page 50 of 64
PAPER CODE : 3z

88. If the input to the prime mover of air alternator is kept constant but the field excitation ir
changed , then the

tA] Reactive component of the output is tB] Active component of the output ir
changed changed
[C] Power factor the troad remains constant tD] Power factor of the load reduces
89. Skin effect is
tA] Proportional to the square of frequency tB] Proportionai to the frequency
tcl Inversely proportional to the frequency iD] Independent of the frequency
90. Ratio of the maximum demand to the corureeted load in a pcwer system is known as
tAl Load factor [B] Diversity factor
tcl Demand factor iDl Power factor
91. The most severe fault on the power system is
tAl Line to line fault tBl 3-phase short circuit fault
tcl Double line to ground fault tDl Line to ground fault
92. For a 8 pole wave wound armature, the number of brushes required will be
tAl 2 [B] 4
tcl 6 tDl t2
93. Buchholz relay is used for the protection of

tAl Generator iBl Transmission line
tcl Transformer [D] Bus-bar
94. Which of the circuit breakers has high reliability and negligible rnaintenance?
iAl Air-blast IBI Vacuum
icl oil tDl SFo
95. In an electric arc welding, the voltage required to strike AC arc is about
tAl s0-60 v tBl 80-e0 v
tcl 100-200 v tDl 220Y
(Space for rough worksi

NEE-rIr/l7 t30-35tA Page 51 of64
PAPER CODE : 34
96. Lumens per watt is the unit of
IAj Luminous efficiency lBl Brightness
lC] Luminous intensity tDl Illuminatiorr
97. Integrating tlpe measuring instruments are used for the measurernent
of
lAl Voltage IBI Curent
tcl Phase tDl Energy
98. Which of the following instruments is the rnost accurate?

tAl PMMC tBl Moving iron
tcl Thermo couple lDl Induction tlpe
99. The number of flip flops required in a decade counter is
tAl 2 IB] 3
IC] 4 IDI 10
100. A fuse is normally a
tAl Current limiting device lBl Voltage limiting device
tcl Power limiting device lDl Power factor correcting device
101. The number of comparators needed in a parallel conversion type S-bit A to D converter
is
tAl 2s6
IB] 8
tcl 16 lDl 2ss
102'
rne leffect in SCR can result in
dt

IA] Low capacitive charging current lBl False triggering
tC] Increasedjunctioncapacitance lDl High rate of rise of anode voltage
103. The input impedance of an operational amplifier is
lAl Infinite tBl Zerc
lcl Very high but not infinite lDl Very small
104. Which of the following is not a jump sratement in C++?
lAl Break tBl Goto
lcl Exit tDl Switch
(Spacefor rough wor@

I

t
!

I
Exam-trIU1?/30-35/A Page 52 of 64 pApER CODE : 34

problem is called
105. Step by step instructions written to solve any
tAl Pseudo code tBl Algorithm
[C] Assembler [D] Class

106. The frequency can b'e rneasured by
[A] Anderson bridge [B] Hays's bridge
tcl Wien bridge iDl 0wen bridge
in
107. The magnetningcurrent in a transformer is rich
-hur*oni.
tA] 3'd harmonic tBl 5'h harmonic
ici i'n [Pt 13'h harmonic
108. The surge impedance of cables is around
[A] 20 Q tBl loo C,
lcl 2oo Q tDl so el
l0g.Breakingcapacityofacircuitbreakerisusuallyexpressedin
tAl MVA IBI Mw
tcl KA tDl KV
110. Nuclear power plant is invariably used as a/an
lAl Peak load plant tBl Base load plant
tcl Standby plant tDl Emergency plant
carry 2 marks each:
Question numbers 111-130
have porvers of 200 W and 100 W' If ther
111. The electric bulbs rated for the same voltage
resistances are R, and R, respectively'
then

tAl Rt=2Rz tBl R' =4R'
lcl R, = 2Rt tDl ft' = 4Rz
c*ils *f I H and 4 H is
112. The nrutuai ind.uctance between the two unity couple'J-coupled
tAl 35 H LBI 13 H
ici zlg tDl 6 H

-' TiliA1ifrii;iifri',7ili

\EE-rrI/17l30-35/A Page 53 of64
PAPER CODE : 34

113. A DC shunt generator delivers 195 A at a terminal voltage of 250 V. The armature and the
shunt field resistance are 0.02 O and 50 C), respectively. What is the value of generated e.m.f.?

tAl 2s4Y tBl 246 v
tcl 27oY tDl 282Y
ll4. The copper loss of a certain transformer at half-full load is measured as 400 W. The copper
loss at full load will be

tAl 800 w tBl 200 w
lcl 400 w tDl 1600 w
115. A voltmeter gives 120 oscillations per minute wlten connected to the rotor of an induction
motor. The stator frequency is 50 Hz. The slip of the motor is

tAl 2% tBl 2.s %
tcl 4% tDl s%
116. In Boolean algebra, ,q+ AB is equal to
tAl A+ B tBl )+ a
tcl ,q+E lDl 2+E
ll7. The ratio of the rehdings of the two wattmeters connected to measure power of a 3-phase
balanced load is 5:3 and the load is inductive. The power factor of the load is

tAl 0.917lead tBl 0.6 lag
lcl 0.6 lead tDl 0.917 lag
118. Rotor input to an induction motor is 100 kW. The slip is 10%. Gross mechanical power
developed by its rotor is

tAl 10 kw lBl e0 kw
tcl ee kw tDl 80 kw
119. The binary division 110002 +l00rgives
tAl I l0 tBl 1100
tcl l1 tDl 101
120. At a certain current, the energy stored in an iron-cored coil is 1000 J and its copper loss is 2000
W. The time constant (in seconds) of the coil is

tAl 0.2s tBl 0.5
tcl 1.0 ID] 2.0
(Space for rough works)

I

Exam-IIVL1l30-35tA Page 54 of 64 pApER CODE : 34

L1l. An 8-bit DA converter has a maximum output voltage of 2 v. If v1l:i.5 v, the digital output
at the end of conversion willbe

tAl ooo111oo tBl o01ooo11
ic] ol looooo tDl l ioooooo
122. In a DC series motor, if the armature current is reduced by 50oh, the torque of the motor will
be

equal to

tAl IOO%of the previous value iBl 50% of the previous value
iCj 25oh of thepievious value tDl 10% of the previous value
123. A 1mA ammeter has a resistance of 100 C). It is to be converted to a 1 A ammeter. The value of
shunt resistance is

lAl o.oo1 C) tBl 0'1001 fl
ici looooo ei tDl 1oo ei
124. A single-phase half-wave controlled rectifier has 400sin 3l4t as the input voltage and R as the
load. For a firing angle of 60o for the SCR, the average outptlt voltage is

tAl 400I n tBl 200 t n
tcl 2401 tr tDl 3001 t
t25. Three identical resistances connected in star consume 4000 W. If the resistances are connected
in delta across the same supply, the power consumed will be

iAl l2ooo w tBl 8ooo w
ici 6000 w tDl 4ooo w
126. AZ50V lamp has a total flux of 3000 lumens and takes a current of 0.8 A from 250 V mains.
Its luminous efficiencY is

tAl i2 lumens/watt IBI 9.6 lumens/watt
iCl 15 lumens/watt tDl 240lumens/watt
127. The active and reactive powers of an inductive circuit are 60 W and 80 VAR, respectively. The
power factor of the circuit is

tAl 0.6 lagging tBl 0'5 lagging
lct 0. S lagging tD] o'75 lagging
,-
(Space for rough works)

\TE-IrI/17l30-35/A ' Page 55 of 64
PAPER CODE : 34

l1g. When the supply voltage to an induction motor is reduced by l0o/o, the maximum torque will
be reduced bY aPProximatelY

tAl s% tBl t0%
tcl 20% tDl 40%
lzg. A 3-phase induction motor takes a line current of 45 A when started by direct switching' If the
star-delta starter is used, the line current will be

tAl 4s A tBl 30 A
tcl 26 A tDl ls A
130. A meter has a full scale deflection of 90' at a current of 1 A. The response of the meter is
square-law. Assuming spring control, the current for a deflection of 45' will
be

tAl 0.2s A tBl 0.707 A
tcl 0.67 A tDl 0.s A

----xxxx----- Electrical Engineering (Code - 34) Paper Ends-------xxxx-----

"\
L'N
Y1*,*
>.
ffur^wr,:]fi''t
'.. { >t
\nl
v

ff)'k,
4-*"{"' \^*/ f'
\- ,"(!
r"*' x\7
e

* -, n"^

*- f}'
,d
.f ,d) ;\ w t,l
f'ur'
"**'n* I" i /Of+

(Space for raugh works)

I
I

Exam-IIUl7 130'3514 Page 56 of 64

PAPER CODE : 35

SECTION - D (Mechanical Engineering)
[CandidatewhohasoptedforME(Code:35)inNEE_20|7|

Question numbers 81-110 carry 1 mark
each:

g1. Which one among the following welding processes uses non-consumable
electrode?

tAl Gas metal arc weJding tBl Submerged arc welding
tcl Gas tungsten arc welding tD] Flux coated arc welding
82. Moment of inertia of a circular section about its diameter (fl is
tAl of na lBl nd3l32
tcl nt ttz lDl ntteq
g3. The process of reheating the martensitic steel to reduce its briuleness
without any significant
loss in its hardness is

[A] Normalising tBl Annealing
tcl Quenching tDl Tempering
g4. level circular path, is
The maximum velocity of a vehicle in order to avoid skidding away on a

lAl Psr tBr
lon
lcl .t*, tDr
)'r*'
85. A measure of Rockwell hardness is the

tA] Depth of penetration of indenter tBl Surface area of indentation
tC] Projected area of indentation tDl Height of rebound

86. Ductility of material with work hardening

tAl Increases tBl Decreases
tcl Remains same tDl Unpredictable

87. In CNC programming the code GO1 is used for

tA] Circular interpolationclockwise IB] Circular interpolation counter clockwise
tC] LinearinterPolation ID] Dwell

NEE-III/|7l30-35/A Page 57 of 64
PAPER CODE : 35

88. According to Gibb's phase rule, the number of degree of freedom of an eutectic point in a binary
system is

tAl I iBl 2
IC] O
tDl 3
89. Permeability is poor for

tAj Coarse grains tBl Mediurn grains
tcl Fine grains tDl Rounded grains
90" The crystatr structure of austenite is

tAl Body centered cubic iB] Face centered cuhic
i-C] i{exagonal closed packed tDl Body centered tetragonai
91. Corrosion resistance cisteel can be increased by addition of which cf tiie firliowing material

[A] Chromium Bl Tungsten
icl Nickel iDl Cobalt
92" In the assembly design of shaft, pulley and key, the weekest rnember is
tAl Puliey iBl Key
lcl Shaft [D] None ofthese
>J" Tool life in the case of grinding wheel is the time taken

iA] Between two successive wheel loading tB] For the wheel to be balanced
IC] Between two successive wheel dressing [D] For wear of I mm on its diameter
94" Head of the Pelton turbine in meter is of the order of

lAl Below 60 tBl 60-1s0
tcl 1s0-2s0 lDl Above 250
95. SI unit of dynamic viscosity is

tAl N-sec/m2 IB] Kg-m/sec2
tcl Nm2/Sec tDl Kg sec2/m
96. Existence of velocity potential implies that

tAl Fluid is continuum IB] Fluid is irrotationatr
icl Fluid is ideal ID] Fluid is compressible

(Space for rough works)

f,

Exam-IIV17l30-351A Page 58 of 64
pApER CODE : 35

97. Which one of the fbllon,ing sets of conditions clearly applies to an ideal fluid?
tA] Viscous and compressible tB] Viscous and incompressible
iCl Non viscous and compressible tD] Non viscous and incotnpressible
9g. The ratio of area under the bending moment diagram to the flexural rigidity betrveen any two
points along a beam gives the cltange in

tAl Shear tbrce IBI Bending moment
tcl SloPe tDl Def'lection
gg. The number of clegrees of fieedom in a plane mechanism liaving'n' links and 'j' sirnple hinge
joints is

tAl 3(n-3) - 2j tBl 3(n-l) - 2j
tcl 3n - 2j tDl 7j' 3n + 4
100. The Bernoulli's equation refers to conservation of
tA] EnergY tB] Linear momentum
lcl Angular momentum tDl Mass
l0l. The value of poission's ratio of a material is zero. Then materialbehave as a
tAl Perfectly elastic body tBl Perfectly plastic body
iCt Ductile material tDl Rigid body
lO2. Work done in a fi'ee expansion process is
tAl Minirnum tBl Zero
tcl * ve tDl -ve
103. Aqua ammonia is usecl as refrigerant in the tbllowing type of refiigeration system:
tAl Bray'ton cycle tBl Gas cYcle
iCt Vapour cornpression tD] Vapour absorption
104. The compression ratio for petrol engines is
lAl 3to6 tBl stoS
tcl 15 to 20 tDl 20 to 30
105. If a heat engine gives an ourput of 3 kW rvhen the input is 10,000 J/s, then the theflnt
etficiency of the engrne u'ill be

tAl 20% IBI 70%

NEE-III/I7130-351A page 59 of 64
PAPER CODE : 35

106. Newton's lau,of viscosity is a relationship between

iA] Shear stress and rate of angular IB] Shear stress and rate of normal linear rate
deformation of deformation
tC] Pressure, velocity and viscosity tD] Shear stress, pressure and rate of angular
distortion

l0l. The accumulation of soot in a cylinder results in an increase of

tAl Clearance volume iB] Ignition time
tc] Etl-ective compression ratio tD] val'e travel tirne
108. Side rake a.gle of a single point cutting tooI is the angle

tA] by rvhich the face of the tool is inclined tBl by rvhiclr the face ot'the rool is inclinetl
towards back sideu,ays
tC] betrveen the surface of tire llank tD] betwcen the surlhce of the f'lank
imllrediately belorv the point and a plane inrmecliately belorv the point and a line
at right angles to the centre line of the drawn fiorn the point perpenclicular to the
point of tlre tool base

109. Tool life is measured by the,

tA] Number of pieces rnachined betrveen iB] Tinre thc tool is rn contact rvith the joh
tool sharpenings
tc] volume of rnarerial re,oved betrveen tD] Allof thesc
tool sharpenings

110. FIot rolling of mild steel is caried out
tA] At recrystallisation temperature [B] Betrveen 100 ,,c to 150 ,,C
tC] Above recrystallisation ternperature ID] Belorv recrystallisation temperature
Question numbers I I I-130 carry 2 marks each:

111' If the rnaximum and minimutn resultant lbrces of trvo forces acting on a pafiicle are 40kN ancl
l0 kN respectively, then thc trvo tbrces in question would be

tAl 25kN and i_s kN tBl 20kN and 20 kN
tcl 20kN and 10 kN tDl 20kN and 5 kN
(Spoce for rough works)

l

Exam-I[UX7130-351A Fage 60 of 64
PAPER. CGDE :

t12. Twc mating spur gears have 40 and 120 teeth, respectively. The pinion rotares at i208 ri-1m a
transmits a torque cfl20 Nm. The torque transmitted by the gear is

lAl 6.6 Nm [B] 20 Nm
icl 40 Nrn iDl 60 Nm
113. A venturimeter of 20 rnm throat diameter is used to measure the .reiocity of water in
horizontal pipe of 40 mm diameter. If the pressure difference betrveen the pipe and the thr<
sections is found to 30 kPa then, neglecting ftictional losses , the flow velocity is

iAl 0.2 m/s tBl x.0 m/s
tcl 2.0 mrs [Dl 1.4 mis
114. A box rests in the rear of a truck moving rvith a declaration of 2rn/s2. To prevent the box frc
sliding, the approximate value of static coefficient of friction between the box and the bed of t
truck should be

lAl 0.1 tBl 0.2
tcl 0.3 tDl 0.4
115. The values of enthalpy at the beginnrng of compression, at the end of compression and at t
end of condensation are 185 kJ/kg, 210 kJikg and 85 kJ/kg, respectively. What is the value
the COP of the vapour compression refrigeration system?

tAl 4 tBl s.4
lcl 0.2s tDl i.3s
116. In a strained material, one of the principle stresses is twice the other. The maximum shear stre
in the same case is r,',0,. Then, what is the value of the rnaximum principal stress?

tA] rrnax tB] Zr,nu*
tC] 4r*u* tD] Srn,u*
ll7. Dry bulb temperature, Wet bulb temperature and deu, ooint temperature are same for

tAl Dry air tBl Saturated air
[C] Unsaturated air lD] Ncne of these
118. In a cotter joint, the width of the cotter at the centre is 50mm and its thickness is i2mm. Tl
load acting on the cotter is 60kN. What is the shearing stress developed in the cotter?

tAl 120 N/mm2 tBl 100 N/mm2
tcl 75 Nlmm2 tDl 5o N/mm2
(Spacefu

NEE-III/I71344ilA Page 61 of64
PAPER CODE : 35

119. A irole of 20 mm diameter is to be drilled in a steel block of 40 mm thickness. The drilling is
performed at rotational speed of 400 rpm and feed rate of 0.1 mm/rev. The required approach
and over run of the drill together is equal to the radius of drill. The drilling tirne ( in minute) is

iAl r.00 tBl t.2s
tcl 1.s0 tDl r.1s
120. Car moving with speed 'I-J' can be stopped in minimum distance 'X' when brakes are applied. If
the speed becomes 'N' times, the minimum distance over which the car can be stopped would
take the value

tAl N2x tBl Nx
tcl xa{ tDl xar2
l2l. The reading of the pressure gaug-e fitted on a vessel is 25 bar. The atmospheric pressure is 1.03
bar and the value of g is 9.81 m/s2. The absolute pressure in the vessel is

tAl 23.97 bar tBl 25.00 bar
lcl 26.03 bar tDl 34.84bar
I22. A pipe flow system with flow direction is shown in the below Fig.l. The following table gives
the velocities and the corresponding areas

%l r
Pipe no. Area (cm') Velocity (crr/s)
I 50 10
2 50 Vz
a
J 80 5
+A 70 5
The valtie of Vz is

lAl 2"5 crnis [B] 5.0 cm/s
tcl 7.5 cn/s [D] 10.0 cn/s
123. A closed system undergoes a process 1-2 for which the values of Qr-z and Wr-z are *20 kJ and
+50 kJ, respectively. If the system is returned to state, 1, and Qz-r is -10 kJ" What is the value of
the work Wz-r?

tAl + 20 kJ lBl -80 kJ
IcI -40 KJ tDl +40 kJ

Exam-IIUl7130-351A Page 62 of 64
PAPER CODE : 35

124. A closed system receives 60 kJ heat but its internal energy decreases by 30 kJ. Then the
work done by the system is

tAl e0 kJ tBl 30 kJ
tcl -30 kJ tDl - e0 kJ
125. Two points, A and B located along the radius of a wheel, as shown in Fig. 2 below, have
velocities of 80 and 140 m/s, respectively. The distance between points A and B is 300 mm. The
radius of wheel is........

Fig.2

tAl 400 mm tBl 500 mm
tcl 600 mm tDl 700 mm

126. A micrometer screw has pitch of 2 cm and the thimble has scale of 64 divisions. Calculate the
least count of the micrometer

tAl 0.313 mm tBl 0.01 mm
lcl 0.001 mm iDl 0.031 mm
127. A brass billet is to be extruded from its initial diameter of 100 mm to a final diameter of 50 mm.
The working temperature of 700 "C and the extrusion constant id 250 MPa. The force required
for extrusion is

tAl s.44 MN tBl 2.72 MN
tcl 1.36 MN tDl 0.36 MN
128. In a blanking operation to produce steel washer, the maximum punch load used in 2x105N. The
plate thickness is 4 mm and percentage penetration is 25. The work done during this shearing
operation is

tAl 20a t tBl 400 J
tcl 600 J tDl 800.r
(Spuce for rough works)

NEE-III/I7l30-35/A Page 63 of64

PAPER CODE : 35

t29. For S.I engine, fuel in order of increasing knocking tendency are

tA] Paraffins,Napthenes, Are<imatics tB] Areomatics, Napthenes, Paraffins
tC] Napthenes,Paraffins,Areomatics tD] Areomatics, Paraffins, Napthenes
130. In orthogonal cutting, the depth of cut is 0.5mm at a cutting peed of 2 m/s. If the chip thickness
is 0.75 mm, the chip velocity is

tAl 1.33 m/s tBl 2 m/s
tcl 2.5 mts tDl 3 m/s

-------xxx--------Mechanical Engineering (Code - 35) Paper Ends---..--xxxx--------

(Space for rough works)