USN

.Nbte: l. Answer any FIVE full questions, choosing at least two from each part.'',,,.. 2. Answer all objective type questions only on OMR sheet page 5 of the answer booklet.,,, ' 3, Answer to objective type questions on sheets other than OMR will not be valued.

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Max. Marks:100

'1r:

' .: (04 Marks)

First/Second Semester B.E. Degree Examination, Dec.2013 /Jan.2OL4Engineering Ghemistry

Time: 3 hrs.dO

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a.

,,,',i ',,,,, PART - AI a. Chaose the correct answers for the following :

i) : 4 metal rod is dipped in a solution of its ions. Its electrode potential is independent of:A) temperature of solution B) concentration of solution

A) +0.74V B) +1.74Y c) rp)317v

C) areaof the metal exposed D) nature of mqtal.ii) The emf of a cell consisting of a SHE and a metal is fti,ilUd'to be 0.74V. The SHE is

the positive €iectrode in the combination. Then the potential of the metal electrode is:

iii) Electrode potentiil of a metal in a dilute solution is:A) same as that in a concentrated solutionB) lower than that in eonaentrated solutionC) higher than that in a concentrated solutionD) none oIthese.

iv) The potential of the two metal eleetrodes used in a cell are 0.35V and 0.85of the cell lormed by combining them is:

o1-0.74!fsr

p7

b.

c.

d.

A) 1.20v B) 0.5V c) -0.50v D) -1.20V.

What are concentration cell?lExplain the workinf of a concentration cell by taking suitableexample. (05 Marks)Explain a method for the determination of single elechode potential. (05 Marks)An electrochemical cell consists of magnesium electrode,in 0.042m mg(NO:)z solution andsilver electrode i"O.Jl- AgNO3 solutiin. The SEP of Mg.and Ag are--2.36iV and +0.80Vrespectivelr,,, *UU.,r.r, the cell, write the cell reaction and c lcpl,aq the emf of ,n.

,"r?Lr.u,

Choose'the correct answers for the following (04 Marks)i) . 1't,;,, lead acid battery the product formed on both anode and cathodd'is:. .'

A) PbO2 B) PbO c) Pbso4 D) Pb.

; i0 A battery in which a key component is separated from the battery prior to its activation

2a.

is called:A) Primary battery B) Secondary battery C) Tertiary battery

iii) In which of these batteries aqueous KOH is used as an electrolyte?A) Ni-cd B) Ni-MH C) Zn-at

iv) In which of the following battery the cell reaction is not reversible?A) Pb-PbO2 B) Li-MnOz c) Ni-MH

:

D) Reserve battery

D) All of these

D) Ni-Cd

b. Explain the construction and working of Zn-MnO2battery. (05 Marks)c. What are fuel cells? How it differ from battery? Explain the construction and working of

CH:OH-Oz fuel cell. (07 Marks)d. Write the discharging and charging reactions in the following batteries:

i) Ni-Cd battery; ii) Ni-MH battery. (04 Marks)

l

10cIIEt2t22

3 a. Choose the correct answers for the following : (04 Marks)i) When a buried pipeline is protected from corrosion by connecting to magnesium block

it is called:A) Impressed voltage protection B) Sacrificial cathodic protectionC) Sacrificial anodic protection D) None of these.' ii) During galvanic corrosion the move noble metal act as: i ,

, A) anode B) cathode . "' I

, ,.. C) anode as well as cathode D) None of theseiii) In water line corrosion, the maximum amount of corrosion take place:

, ,tr') along a line just above the level of water meniscus'Ell along a line at the level of water meniscus

C) along a line just below the level of water meniscusD) at the bottom of the vessel.

iv) During dif eential aeration type corrosion, the corrosion:A) occurs at more oxygenated part B) occurs at less oxygenated partC) occurs uniforr,n throughout D) rlbne of these.

b. What is metallic .orrorro*, Explain electrochemical theory of corrosion by taking iron as

example. (06 Marks)c. Explain the corrosion control technique by,eathodic protection. (06 Marks)d. Explain galvanization process. (04 Marks)

-,''

4 a. Choose the correct answers for"the,followin$': (04 Marks)i) In chromium plating elecftoly,te used in the bath solution:

A) H2CrOa +H2SOa ,1r ' B) KzCrOa + H2SOaC) HCIO+ + H2CrOa ' D)'None of these

ii) Printed circuit boards are prepared by the process of:A) Electroplating B) Electro polishingC) Electroless plating D) Electiofogilrng

iii) The ability of the plating bath to develop uniform coating on the entire surface of theobject is measured by its:

A)',eurrent density B) Decomposition potential

. ; ,,,? Plating power D) Throwing poweriv) Polarization effect can be minimized by using:

A) Large electrode surface B) Highly conducting solutionC) Low electrolyte concentration D) AX of these

b. Explain the following terms:i) Polarizationii) Decomposition potential. 106 Marks)

c. Explain how the following plating variables affect the nature of electro deposit:i) Current densityi, pHiil) Complexing agent. (06 Marks)

d. What is electroless plating? Explain electroless plating of copper. (04 Marks)

2of4

PART _ B

5 a. Choose the correct answers for the following :

A) burns slowlyC) contains rain water

A) Straight chained€) Side chained

i) A knocking sound is produced in the internal combustion engine when the fuel:B) burns factD) None of these

B) Branched chainD) Aromatic

B) propaae numberD) butane number.

D)4

t0cIJBtzt22

(04 Marks)

(05 Marks)

(06 Marks)(04 Marks)(06 Marks)

ii) For good perflormance" the hydrocarbon molecules in a diesel fuel should be:

iii) Catalyic cracking of heavy oil is carried out to get better quatity:A) Kerosene B) DieselC) Gasoline D) Lubricating oil

iv) Suitability,of diesel fuel is determined by: :'

A) octane numberC) cetane numboi

b.

c.

Define calorific value. Explain how calorific value of solid fuel is determined by bombcalorimeter.

,,,,,,,,,, ,,, (07 Marks)0.789 of coal containing i.9% hydrogen, when burnt in a bomb calorimeter, increased thetemperature of 2.7kg water from27.ZoCto29.7"C. If the water equivalent of calorimeter isl.2kg. Calculate gross and net calorific value (specific neat of water 4.187 kJ/kg/"C, latentheat of steam2457 kJ/kg.

d. Explain the purification of silicon by zone refining process.

6 a. Choose the correct answers for the following :

i) For water system the maximum number of degrees of freedoA)0c)2

ii) When lead is progressively added to molten silver, the melting point of the resultantalloy is:A) raisedC) unaltered

iii) The colorimetric analysis is based on:A) Faraday's lawC) Ohm's law

B) lowered

B) Beer-Lambert'sD) Kohlrauen's law i

iv) In potentiometric titration platinum electrode act as:A) reference electrodeC) reduction electrode

B) standard electrodeD) indicator electrode.

b.c.

d.

Draw phase diagram of Fe-C system. Explain eutectic and eutectoid point.Explain Pattinson's process of desilverizationof read.Discuss the theory and instrumentation of potentiometric titration.

.,forAY g\Io

\t,j i,<1 l)

3 of4

tocrJBtzt22

7 a. Choose correct answers for the following : (04 Marks)i) A plastic which can be softened in heating and hardened on cooling is called:

A) thermoplastic B) thermosettingC) thermoelastic D) thermite

i ii) Which of the following is an elastomer:

C) Nylon D) Neopreneiii) ','" Chloroprene is the repeating unit in: "'i ,,,,,'A) Polystyrene B) Neoprene ;"

C) PVC D) Poly,theneiv) Thepiocess ofr,,ulcanizationmakes rubber:

A) Soluble in water B) SoftC) Hard ' D) Mo-re elasric.

b. What is glass transition temperature? Explain any three factors that influence the glasstransition temperature. (04 Marks)

c. Explain the manufacture of plastic by compression moulding and injection mouldingtechnique. ' (06 Marks)

d. Give the synthesis of i) Tefloh; ii) Neoprene; iii) Polyurethane. (06 Marks)

8 a. Choose the correct answers for the fo{lowing : (04 Marks)i) Total alkalinity in water is the sum of:

A) OH- and CO]- ions , ,. " . , l . B) OH- ions only

C) CO?- ions only ,: i,,,' ,,D) OH-, HCO?- and COI- ions.

ii) The' indicator used in the determination of chloride context in water sample byargentometric method is :

A) K3 [Fe(CN)sTc) Kz[Fe(eN)i]

' .;ii

B) KzCrO+D) KzCNzOz ,'

iii) Primary tr€atment of sewage is used to remove:A),Suvpended and floating solids B) Soluble inorganic solidsC)''Pathogenic bacteria D) All of these

iv) r fhs reagent used in the estimation of sulphate by gravimetric method is:B) Barium chlorideD) Barium sulphate.

b. Discuss the determination of chloride in water by argentometric method. (06 Marks)c. How is alkalinity of water caused? Explain the determination of alkalinity by

_ phenolphthalein indicator. (06 Marks)d. Define COD. Explain the sewage treatment of activated sludge process. (04 Marks) ,

*****

:: ,: A) Phenol-di-sulphonic acidc) 2-SPADANS

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1 rJt

C

USN 1OMAT21

Second Semester B.E. Degree Examination, Dec.201"3lJan.20l4Engineering Mathematics - ll

Time: 3 hrs. Max. Marks:100

Note: l. Answer any FIW full questions, choosing at least two from each part. ,tiy:

:: ,...,, 3. Answer to objective type questions on sheets other than OMR will not be vuluedii'','",

. .',gef equation of the form,

a; d[*,0,9) = o B) of v,p.9] = o\ cly/ \ dx)\ J./

:::,:::'

ii) The generalsolution of the equation, p2

A) (y+x-,.c:JQ+2x-c)C) (-y-x-cXy-2x-c)=0

iii) Clairaut's equation is of the form.

,,.,,,,,.

,, ,

(04 Marks)y = f (x,0) then difft-rentiating x we

...:

A) x=py+f(p) ts)iy=p'^+f(p) C) y=px+f(p) D)Noneoftheseiv) Singular solution of y: pf,* 2p2 is, ,n ".."""'::'::"'

A) y2+8y=g B) i2*8y=g C)r'+8y-c=0 D)x'+8y=gb. Solve p2 +2pcoshx+1=0. (o4Marks)c. Find singular solution of p = sin(y -xp). (06 Marks)

d. Solvetheequation, y2(y-xp)=rop' ,ringru tion X=l and V=]. (06Marks)

z a. choose the correct J;i";. tn rouo*ing ' ,i',,,,

x v (04 Marks)

i) A second order linear differential "quuiio,

hur, . ""' :,::::,,,

A) two arbift*y solution B) One afbifiary solution

PART _ AI a. , Choose the correct answers for the following :

i)'r Suppose the equation to be solved is of the form,

ciC)

oL .,,,Q :,::,

()

I3soo#

.F

_-o

oo ll

troo.=N

6J Y3

()tr-c0)-'F

a-^

a::

bU

o0trEb>!/66-9G

6.y

rdo!eo.J

O:

@tE

La)

>\ +ioo-tro0o=9Otr>=OCJ:

U<-No

a!oa.

c) 0(*, y, p, =r.,, , D) g(x, y,0) = 0

-3p+2=0is,,B) (vr'x-c)(y-2x-c)=QD) (y-x-cxy*x-c)=Q

C) np arhitrary solution D) None of theseii)

[r,j:f:::: -4i are the roots of A.E of a homogeneous linea differential eWaffiits. solution is,

'lrrr'ri'r

',..' ' C) C,e2' + Cre* cos4x + C,e' sin 4x D; C,e2* cos4x + Cre2'sin.

iii) P.I. of (D + 1)2 y = e-^*3

y'seB; C,e:t + C, cos 4x + C, th !*Y

x'A)-2

B) x3e* 6', X3

"-**:JD) {"-}

2

iv) Particular integral of f(D)y = e*V(x) is,

A) 9H B)eu'frlur,.ll C)eu*ffi[u,,,1

Sorve g'v

-39'v.*:9l-v =0.dx' dx' dxSolve y' -3y' -t2y = 2sin xcosx

Solve the system of equation, # - 2y = cos2t, S * 2x = sin 2t .

D)#.r) [t"'vt*l]

b.

c.

d.

(04 Marks)

(06 Marks)

(06 Marks)

3 a. Choose the correct answers for the following :

i) In xzyo + xy'- Y = 0 if e' = x then we get x2y" as,

A) (D-l)v B) (D+1)y C) D(D+l)yii) In second order homogeneous differential equation,

x: a is a singular point if

1OMAT21

(04 Marks)

D) None ofthesePo (x)y'+ P, (x)y'+ P, (x)y = S ,

(04 Marks)

(06 Marks)

(06 Marks)

(04 Marks)

A) Po(a) > 0 B) Po(a) + 0 C) &(a):0

iii) The general solution or r' 1'{ +r+-y =0 is.dx' dx"llA) )'=C,x-C,- B) Crx*cr, C) C,x+Crx

D) P.(a) < 0

D) C,x - Crx

6

C) Ia,x'ir ' '''' D) None ofthese

iv) Fiobenius series solution of second order linear differential equation is of the form,,:e

A) xt!a.x'r=0

B) f a,x'r=0

b. Solve y' +a'y = secax by the method of variation of parameters.

c. Solve *,Q+4x9+2y=e^.dx' dx l

obtain the series solution of "ldI', 2*n = 0 .

Choose the correct answers for the following :

i) PDE of M+b = a2x+ y is" '

d.

4a.

x 9.9=tdx (N

B\ q 9=o'dx av

ii) The solution of PDE 2,, =2y' is"

A) z=x2*#ril"ig(v) B) z"';*2 y2 + xf (y) + g(y)

D) ,=y'+x{(y)+g(y)

c) x(t)Y(t)

c\ g+Z=o D) Z*4=,'^4 ox oy dx dy

''1i, ::

C) z=x2y'iflx;+g(x)iii) The,,,pulsidiary equations of (y2

.dxdvdzal _=j_=_R,,..'"t"'l'..t"' P q

^\ dx dy dz) )-y- +z' xy xz

+22)p+x(yq -z)=0 arb, ,

dx _dy _d,u) --------=y- +z- x xz

D) None of these

ir) In the method of separation of variables to solve xz" *zr=0 the assumed solution is

.: ofthe form,A) x(x)Y(x) B) x(y)Y(y)

11.l-

b. Solve +=cos(2x+3y).Ax'Ay

c.

d.

Solve xp-yq =y' -x'Solve 3u* + 2r, = 0 by the separation of variable method given

D) X(x)T(t) "":::',,,,

(04 Marks)

(06 Marks)

that u:4e-* when y: 0.

(06 Marks)

PART - B5 a. Choose the correct answers for the following :

lx2D JJ.xaya" =00

A)1

.

iv)"

A) j*'-'.-.d* B) i*'-'.-'o*00

The Beta and Gamma functions relation for B(m,n) =

c.

1OMAT21

(04 Marks)

B) - 1t2 c) u2 D) None ofthese

o; ll41r,e)rdrdo

I 'r't '

DJ Three

the surface o,f the sphere

D) 4n

ii) The integrat l[ f 1x, y;dxdy by changing to polar form becomes,

A) l[Otr,e)a.ae B) llr(r,0)drd0 c) l[rlr,eyraraeiir) For a real positive number n, the Gamma function f(n) =

O1'[x'e-.ax

,, - , o

4, Pril s, +:+(,:) C) r(m)r(n) D)I (m-n) l (m + n)

^ "lY^By changing the order of integration evaluate , ^!t'j:O+ y,;dydx. a > 0.

Hence evaluate 'f d*lw(06 Marks)(04 Marks)

D The scalar surface integral of i ore, s, where s is a surface in a three-dimensional

region R is given by, f?."ar :

-

Uy s divergence theorem.-*

A) IIIv iav ' s) lJv ?a*oy cr ffJv.iav D) None orthesev S -v-

iit If all the surface are closed in a region containing volume V then the followingtheorem !,s applicable.A) Stoke's theo.rem B)Green's theorem C)Gauss divergence theorem D)None of these

iii) The value of [(Z"y-*'h*+(x' +y'])dy] by using Green's theorem is.J

. J ) J -- -Q -

C) Jx'e-.dx0

d.

6a.

a x x+y ::, ,:,

Evaluate II I.-.'''O zdydx.

t,Express the integral I+ in terms of the Gamma function.

o!l-X

Choose the correct answers for the following :

A) Zero B) One C) Twoiv) fff.nas : _, where f : xi+yj+2k and S is

JS

*' +y' +22 =a2

A) 4na B) 4na2 g7 4xa3

b.

c.

Find the work done by a force f =(2y-x')i +6yzj-Bxz2k fromthe point (0,0,0) to thepoint (1, 1, 1) along the straight-line joining these points. (04 Marks)If C is a simple closed curve in the xy-plane, prove by using Green's theorem that the

integral llt"Or-ydx) representstheareaAenclosedbyC. Henceevaluate 4*-L =,.rs/\ | - -r- ---.--- ,J ". - A- b,

_, .

(06 Marks)

d. Verify Stoke's theorem fo. i =(2x-y)i-yz' j-y'zk for the upper half of the sphere

*' + y' +22 =I. (06 Marks)

7 a. Choose the correct answers for the following :

D L[t"1=.nA)-' sn+l

ii) L[e-3'1 =a-lA)

-- s-3

nB) "_,S

11

B)s+3

is equal to,

B) 3!

' (s -2)o

1OMAT21

(04 Marks)

p1 A' qn+l

1

D)s-3

,''a1,

D)(s -2)

....

c) n!' n-1

S

c)

c)

I

s+3

aJM

iii)

iv)

r{r1t-a)H(t-a)}3!A).--_

(s + 2;o

't{ 6rt - 1)} =

ry,,1,t,p;t B) et C) e^ ::,,,,,, . D) e-^

b. Evaluate Lisin'Zt) ,,, ,'.,. (06 Marks)

lz.. o<t<3c. Find L{(t)}" given rhar f1r; : J-, ;:,,,r [,, t > 3

(06 Marks)

li o<t<2I

d. Express f(t)= j4t 2<t<4 in terms of unit s.tep function and hence find their Laplace

[a t>4transform. ,,i...',',.,, ,,,

"""':: (04 Marks)".!j'".

8 a. Choose the correct answers for the foilowing : (04 Marks)

ai --!- sy --l- C) --f-- pl .--l ,S- +a- ,',,;;;.. S- -a- ,i S'+a' S'-a'

.l /r\liii) L-r]cot-rl+ ll=L \s'll,,!1, ,i!

L lr\D-a)J- _ _ .,.,..,,,1:

A) e'f(t) ,,,:,... B) e"tf(t) C) e--'f(t) D) None of these

:

sin t sinh at ^ sin atA) ts) C;.-_-'::.'.""":"tt"'"""" t

For the function (t) : 1, convolution theorem condition, ,,i:,;

A) Not satisfied B) Satisfied with some conditionC) Satisfied D) None of these

h at sin at ,_. sinh ttc)t''?

^ 2sr -6s+ 5

(s - 1)(s - 2Xs -3)

1i,

b. Find the inverse Laplace trans

() .

c. Find l, I

]+- ^ | .rsing convolution theorem. (06 Marks)l(s-lxs'+4)J

d. Solve differential equation y'(t)+y=F(t), where af,l={? 0<t<1. Given that

12 r>ly(0) = 0 = y'(0). (06Marks)

*****

4of4

USN 10ccP13/23

First/Second Semester B.E. Degree Examination, Dec.2013 lJan.2ol4

Gomputer Goncepts and G ProgrammingTime: 3 hrs. Max. Marks:100

l$ote: l. Answer uny FIW full questions, choosing at leust twofrom each part., 2. Answer all objective type questions only in OMR sheet page 5 of the ans|eer,,booklet.'

.,3. Answer to objective type questions on sheets other than OMR will not be valaed.

PART _ A

ii)

iii)

b.

c.d.

()(f

o

(.)

(.)

te.

6e

-o0 I

troa.=Nd<f,

sTog:do

o>o=

a:

oc)(co

o0i

a6

oi=

p- 6.orv()j

o=

4tE

!(J-c.=>!bovtr oll

o=soF>=oo

rr<:-0.)

o-7

foa

la.,,,,' gj

Choose the correct answers for the following :

i) Which of the following is not a type of keyboard connector?B) 6-pin conneetorD) USB-conneCtor

(04 Marks)

D) Fourth(06 Marks)(05 Marks)(05 Marks)

A) 5.pin connectorC) 8-pin connector

ii) Which of the following is not an output device of a computer?

iii) Who is called the father of the computer?A) Balise PascalC) Joseph Jacquard ,,,,

iv) Which generation of computers is covered by the period 1964-197l?A) First B) S-econd ,.. C) Third

Briefly explain about the various generatiorud of computers.With a neat figure" explain how instructions are processed by the CPU.Describe briefly about the various,keys present on a standard keyboard.

2 a. Choose the correct answers f,or the following : (04 Marks)i) Which is a secondary memory device?

A) CPU " rB) 4I-LI C),FiBppy disk D) MouseIf you want to exe-cute more than one program at a time, the systems software that youmust be capable ofA) wordpcessing B) virtual memory C)'compiling D) multitaskingA traaslatbr which reads an entire program written in d.high level language andconverts it into machine language code isA) assembler B) translator C) compiler D) system software,WhichofthefollowingisnotanApplicationSoftware?

C) VDU D) CRT screen

B) Charles BabbageD) Dr. Hewrman Hollerith

A) Word processingC) UNIX

,, b. ' Explain in detail about the construction and operation of the hard disk drive.

,, . Briefly write about various computer processing techniques to process data.,, ' d. List the different network components with examples.

3 a. Choose the correct answers for the following :

i) The flowcharting symbol Diamond Shaped Box indicatesA) Start B) Process step C) Decision

ii) Which of the following is not a keyword in C?A) char B) break C) triangle

iii) Which of the following is an input function?A) scanf B) printf C) puts( )

iv) Which of the following is a valid integer?

B) Spreadsheet :,,,,,,,,,,,

D) Desktop publishing(05 Marks)(07 Marks)(04 Marks)

D) End

D) long

D) putchar(

D) +3,728.2

ctFd?5c&6_

L!&8{JtftY

A) -2s0 B) 4,442I nf ?

c) -31.89

3b.c.

d.

4a.

5a.

6a.

b.

c.

d.

What are the different built-in data types available with C?With an example, explain the structure of a typical C program.Briefly write what do you mean by the C tokens.

Choose the correct answers for the following :

i) which of the following is not a relational operator in c language?A)< B)>: c)1:

ii) which of the following is a special operator in c language?A) sizeof ( ) B) log (x) C) exp (x)

iii) The unary operator in c are used to act upon only - '

operand." A) one B) two C) three

iv) If b: 10 and d:3, what is the result for b%d operation?

. p'<r.ne B) two C) threeExllain relaiional operators in C, with examples.

Jiit11 ?n."rldpl.: ..xplain the Unary operatoi in C language.Explain in detail ii.bout Bitwise operators in C languag. -

10ccPt3t23

(06 Marks)(06 Marks)(04 Marks)

(04 Marks)

D) & ..,

D) sin (x)

D) four

D) 3.33(06 Nlarks)(04 Marks)(06 Marks)

choose the correct f;;r* p.lh:. affi (04 Marks)i) The function that calls itself is called aiA) forwarding function gf conditional functionC) recursive function D) backward functionii) The main( ) function work is defined,ih '

library.A) stdio.h B) conio.fu ' c) string.h D) math.hiii) Parameters passed as arguments to the function call a1e called as /A) actual parameters B) formalpuru.n"t.r, f

C) return(expregsion) D) none ofthese \,in\**_what is a function? Describe wirh declaration synrax. . ,)fiffi,?,::,^O:]l:,_tr.*?rr.ofpassing parameters to tunction with examples. (08 Marks)

b.

c.d.

b.

c.d.

c) no parameters , ' ' *D;;;;i,h;;;"'"" :iiv) which of the rolio*ing return statements #d##n"ij'r'".',io, ? ,;{ "T$l .j} }$A \'-^+,,-.^ 'Y*\ LISI" 'i t l-<A) return B) return(0) ,*\

tno' ' l.:-E)$r

Write a prog-ram to test whether or not a given integer number ir pri'"r. *ith functiJi., (04 Marks)

lhoo9e the correct answers for the following : (04 Marks)i) which of the following looping construct is an entry controlled loop?,A) while B) do-while C) foi b; none of theseii) which of the following is a conditional statement that tests a ril';;;i;ri^jin..",

iii) Which of the following is not a jump statement? - / "A) break B) continue C) go to D) foriv) Which of the following is an exit controlled loopl?A) if B) do-while C) while D) if_else

Write and explain the declaration syntax for while and do...while loop. (p4Marks)write a program to compute the sum ofN numbers using the for loop. (06 Marks)Write a program to check whether the given alphabet is a vowel or not using switchstatement.

(06 Marks)

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t0ccPt3l23

7 a. Choose the correct answers for the following : (04 Marks)i) In an array a[5] : {10,20,30, 40, 50}; the element 40 is designated as

A) afol B) a[1] c) a[3] D) a[a]ii) In an array int a[2][3] : {10, 20,30,40, 50,60};the a[0][1] element is

A) 10 B) 40 c) 60 D) 20iii) Which of the following string handling function is used to add two strings?

A) strcat( ) B) strncat( ) C) strcmp( ) D) strlwr( )iv) Which of the following string handling function is used to compare two strings?

A) strlen( ) B) strcmp( ) C) strcpy( ) D) strev( )(04 Marks)Define ar.array. How are they declared in C language?

A) zero B) single C) control D) none of theseii) Open MP programrning model offers parallel directives for

A) Shared Memory Access B) Zero Memory Access

c. Write a program to read two matrices from keyboard and print the sum of two *u,r,r11:r--(07 Marks)

d. Write a program to test whether the given string is a Palindrome or not. (05 Marks)

8 a. Choose the correct answers for the lollowing : (04 Marks)i) Thread is defined as _ stream of control flow in a program code.

C) Multiple Memory Access D) None of theseiii) execution of instructions in a computer system is referred to as parallel

computing.A) Serial B) Sequeniial C) Accurate D) Simultaneous

iv) Open MP stands for _. .

A) Open Multi-ParallelismC ) Open Multi-Processing

Bring out the scope for Pefallel computing.Explain "Parallel computing" in detail.

, B) Organized Multi-Programming, D) Organized Multi-Parallelism

b.c.

d.

What are threads? Give thedvantages and disadvantages of multiple threads. (06 Marks)(06 Marks)(04 Marks)

CEF{TRALLIS&ARY

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(04 Marks)

D) None of these

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First/Second Semester B.E. Degree Examination, Dec.2013 /Jan.20l4Basic Electronics

Time: 3 hrs. Max. Marks: I00

Note: I. Answer any FIVE full questions, choosing at leust two from each part.2. Answer all obiective type questions only on OMR sheet page 5 of the answer booktet.3. Answer to objective type questtons on sheets other than OMR witt not be valuecl.

PART _ A

I a. Choose the correct answers for the following :

i) The knee voltage of a silicon diode isA) 0.3V B) 0.5V c) 0.7v

ii) The efficiency of full waves rectifier is about %c) 1.21

iii) The missing terms inthe forward diode current is I, = Io[e\'1v. -11A) Vn B) rl C) Vs

iv) The zener diode is mainly used in :

A) Comparator B)Regulatorb. Discuss the behaviour of p-n junctions under:

i) No bias: ii) Forward bias: iii) Reverse bias.

C) Multivibrator D) None of these

(06 Marks)c. Explain the operation of full wave bridge rectifier with neat circuit diagram ,"0 *A1eff;p;

d. A zener diode has a breakdown voltage of 10V. It is supplied from a voltage source varyingbetween 20-40V in series with resistance of 820er, using an ideal zener diode model obtainminimum.and maximuryZener currents. (04 Marks)

2 a. Choose the correct answers for the following :

i) When transistor operated in cut offand saturation. it acts likeB) a switchD) a variable resistor

A) a linear amplifierC) a variable capacitor

iD Ifthe base emitter junction is open, what is the collector currentA)lmA B) 2mA C) l0mA D)0

iii) The _ transistor is used for impedance matchingA) C-B B) C-E C) c-C

iv) cr of a transistor is 0.99 calculate pD) None

A) p :0.9 B) B :90 C) B:99 D) B:0.09

Draw the common emitter circuit and sketch the output characteristics, explain active region,cutoff region and saturation region by indicating them on the characteristic curve. (08 Marks)With a neat circuit diagram explain the working of transistor used as voltage amplifier.

For a certain transistor, gg.6%of the carriers injected into the base cross th. "oil::1#ff]junction. If the leakage current is 5pA and the collector current is 20mA, calculate: i) Thevalue of oc; ii) the emitter current.

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(04 Marks)

10ELN15/2s

3 a. Choose the correct answers for the following : (04 Marks)i) The best biasing stability is achieved by using biasing method.

A) Fixed B) Collector to base

C) Voltage divider D) None of these

ii) In self bias or emitter bias circuit _ is connected between emitter and ground.

C) Resistor D) Zener diodeiii) The stability factor is given by

dr _ dL,A) "'co B) *'u'dt, dl.uc

dlu r\. dl"c) - D) --'' dl.o dl.oiv) The operating point must be _ for the proper operation of transistor

A) High :: B) StableC) Increasing ,r D) Decreasing

ii',,.b. With a neat circuit diagraq explain the working of an collector-to-base bias circuit using an

npn transistor and derive the equation for In. ''- ,,, (06 Marks). .. ':,-

c. Determine the operating point for a'silioon transistor biased by base bias method with

B : 100, Rs:500KfJ, Rc:2.5KO anqVis:20V. Also drawthe load line. (06 Marks)

d. Derive the stability factor S for base bias circ,uit. (04 Marks)

4 a. Choose the correct answers for the following : (04 Marks)i) With gate opeq ifih; supply voltage exceeds the'break over voltage of SCR, then

SCR will con(u0tA) False B) True :

C) Onlv for D.C D) Only for A.bii) The SCR is a device

A) NPN B) PNP

..., c) PJ\PN D) PNNiiD A relaxation oscillator uses _

A) MOSFET B) SCRC) UJT D) BJT

iv) FET is a _controlled deviceA) VoltageC) Power

B) CurrentD) None of these

b. Explain the construction of n-channel JFET and give its symbol.

c. Write and explain the equivalent circuit of UJT.

d. Explain the two transistor model of SCR.

(06 Marks)

(05 Marks)

(05 Marks)

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PART - B

5 a. Choose the correct answers for the following :

i) Oscillator uses _ type of feedbackA) Positive B) NegativeC) Reverse D) None of these

ii) The total phase shift around a loop must be _ for the sustained oscillationsB) 360'D) 270"

B) frequency v, voltage gainD) liequency vs input voltage

is blocked by,,,,,

B) Couplihg capacitor, C6D) The transistor

A) 180.c) 90"

iii) The frequency response is a graph ofA) freouency v, current gainC) frequency v, output voltage

iv) In RC coupled amplifier the d.c componentA) Load reiistance Rr.

C) Re ,,,

With a neat circuit diagram, explainamplifier.

tOELN15/25

(04 Marks)

the workireg of a two stage capacitor coupled CE

,, (08 Marks)

(02 Marks)

(04 Marks)

B).90" ,

D) 360"

B)1D) Negative

B) Triangular waveD) Step

c. Explain with the help of circuit diagram the working of an RC phase shift oscillator usingtransistor. (06 Marks)

d. Find the frequency of the oscillations of transistorized Colpitts oscillator having tank circuitparameters as Cr : 150pF, Cz= 1.5nI and L:50prH.

6 a. Choose the correct answers for the lollowing :

i) In an inverting amplifier there is _ phase shift between input and output.A) 0'c) 180.

ii) Ideally open loop gain of op-amp is _A)0c)*

A) RampC) Cosine wave

iv) Lissajous figures are used to measureA) Phase

C) Frequency

iii) When op-amp used as integrator with input as square wave the output w

difference between sinusoidal signalsB) AmplitudeD) None of these

b.

d.

c.

Write the ideal op-amp characteristics.

Show with a circuit diagram how an op-amp can be used as differentiator.

Explain how current measurement is done using CRO.

(06 Marks)

(06 Marks)

(04 Marks)

CEUTRALLBts$T*F'V

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7 a. Choose correct answers for the following :

i) Which of the following is invalid BCD code?A) 0011c) 0101

B) 1101

D) 1001

B) 2s6D) 8192 :

)

B)111101100 :: :

D) l r00il0

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(04 Marks)

(06 Marks)

(04 Marks)

(04 Marks)

(06 Marks)

ii) Given the number (8BF)r6, what is the positional weight of the 8?

iv) The relation between carrier power and total power in an AM wave

A) 16

c) 40e6iii) (64)rc- (a6)s in binary is

A) 111101101c),111110

A) Pc=r,[,.+)

c) P, = *[,.+)

B) P. =*('.T)

D) P. =p.(t* -')t.)t\ .J

b. Determine the value of base x, if i; {225)*: $al)s; ii) (211),: (152)s. (06 Marks)c. Perform subtraction using 2's complement method I l0l - 1010. (04 Marks)d. Draw the block diagram of super helerodyne receiver and explain the functions of each

block.

8 a. Choose the correct answers fo. ti" following: '

i) De Morgan's theorem siates that A + B isAt a+ec)AB

,i, Universal gate,s are _ andA) NOT and NORC) NAND and NOR

B);A;B':-D) A+B

B) AND and 0RD) XOR and XNOR

B) NORD) EXOR

iii) For.which gate when the two inputs A and B are equal the output is zero and otherwiseone?A) NAND

iv) An half adder has two inputs and _ outputsA) ONE B) TWOC) THREE D) None of these

b. Implement EX-NOR gate using only NOR gates.

c. Simpliiy AB+AC+AeClen+C1.d. Implement fulI adder using two half adders and one OR gate. Write the equations for sum

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and Cnr1. (06 Marks)

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Question Paper Version : C

I I Il Semester B.E Degree Examination, Dec.2013/Jan.20l{

CONSTITUTION OF II{DTA AND PROFESSIONAL ETHICS

Time: 2 hrs.](coMMoN TO ALL BRANCHES)

[Max. Marls: 50

TNSTRUCTIONS TO THE CANDIDATES1. Answer all the fifty questions, each question carries one mark.

2. Use only,Black ball point pen for writing / darkening the circles.

3. For each 4UC.ptioo, after selecting your answer, darken',tfe appropriate circle

corresponOini tri e same question number on ttre sheet.,,',,,,,i'

4. Darkening two cirii* fqr the same question makes iii unr*.r invalid.

5. Damaging/overwriting, using whiteners on the OMR sheets are strictlr,

prohibited.

1.

a) Chief minister b) Governor c) Lok Sabha

The Mandal commission for backward classes was setup in,a) 1987 b) 1978

d) President

d) 1986

3. According' to 44th Amendnrent of 1978 the right to properly was emitted as a fundamentalright and made it a

c) 1996

a) Social right ,,, b) Legal right c) Universal right d) None of these

b) Leads to a better resultd) Is an impediment to responsibility

Groupthing:,.,.a) Gives u gpod r.rrltc) Widm3' riur knowledge

Ow eonstitution prohibits :5.a) Untouchability b) Freedom c) Liquor

.6.. The chief minister of a state is appointed by the:

d) Politics

7. Exclusion of Creamy layer makes a backward class:a) Socially backwardc) More backward

Special majority means more than,a) 50% majorityc) 75% majority

a) Speakerc) Prime minister

b) Chiefjustice of high courtd) Governor

b) Truly backwardd) Economically backward

b) Two-third majorityd) 60ohmqority

-c1-

10crP18/28

25.

24. The Indian Federal system is based on the Federal system of,a) Canada b) usA c) France d) Newzealand

Engineers must:a) Recognize the value of a code of Ethics b) Support a code of ethicsc) Look upon a code of ethics as a sacred writ d) Both (a) and (b).

The president can appoint to Lok Sabha from Anglo Indian community:

-

a) Two persons b) One person c) Five person d.) Three persons

74th Amendment of the constitution refers to :

The final stage of the election process is:a) Pollingc) Announcement of results

a) Rural local bodiesc) Urban locat bodies

b) Counting of votesd) None of these

b) Right to propertyd) None of these

26.

27.

28. Which article of the,constitution provides protection to the civil servants?a) 315 b) 311 c) 368

29. The party system in India can be described as:

a) Bi-party b) Majority party c) Single party

The phrase economic justice is found in,a) Fundamental rights and fundamental duties.b) Preamble and Directive principles of state policyc) Fundamental duties and directive principles of state policyd) Fundamentalrights and fundamental duties.

The Controller and Auditor General acts as the,a) Guardian of public financesc) Guardian of public interests

b) Chief legal advisor of the governmenld) Guardian of fundamental rights

d) 388

d) Multi party

31.

32. The system of legislature in the state of Karnataka is:a) Bicameral b) Unicameral c) Cameral d) Multicameral

33. Voting age of citizens is changed from 21 to 18 years by ConstitutionalAmendnrent Act:a>..42"d b) 56th c) 61't

34. Writ of prohibition cannot be issued against the :

d) 76th

a) Judicial functionsc) Acts of lower courts

35. 'Fault Tree' is used:a) To trace the riskc) To trace the result

a) 97,66 and 47c)97,47 and65

b) Legislative functionsd) Quasi - Judicial functions

b) To assess the accuracyd) To assess the risk

36. How many subjects are there in the central, state and concurrent list:b) 47,66 and 98d) 47,96 and 55

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Question Paper Version : D

Tirne: 2 hrs.]

First/Second Semester B.E Degree Examination, Dec. 2013 I Jan.2014Environmental Studies

(coMMoN TO ALL BRANCHES)[Max. Marks: 50

INSTRUCTTONS TO THE CANDIDATES1. Answer all the fifty questions, each question carries ONE mark.

2. Use only Black ball point pen for writing / darkening the circles. " ,

3. For each question, after selecting your answer, darken ,the ,appropriate circle

corresponding,,to the same question number on the OIVIB sfreet

4. Darkening two circles for the same question makes the answer invalid.

5. Damaging/overwriting, using whiteners on the OMR sheets are strictly

prohibited.

l. Liquefied petroleum gas is a mixture ofa) Methane and ethane b)c) Methane and butane d)

::

Propane and butaneMethane and propane.

Best environmental clean ahernative fuel isa) CNG b) Diesel c) Coal

Nuclear power plant in,Karnataka is located ata) Bhadravatht , O, Sandur c) Kaiga

Air pollution:ftom automobiles can be controlled by fitting "'

d)

2.

3.

4.b) Wet scrubberd) All of these

d) Petrol

d) s5 dB

d) Population groMh

a) Electrostaticprecipitatorc) Catalf,ticconverter

8. Demography is the study ofa) Animal behaviour b) Geography

5. Which of the following is a natural source of environmental pollution?a) Sewage b) Industries c) Automobiles d)

6. Liquid waste generated from bathrooms and kitchens are calleda) Domestic sewage b) Run off c) Salvages d) Allthe these

7. The max average permissible noise levels during day time hours as per environment protectionact in India is

a) 30dB b) 4sdB c) 50dB

c) Rivers

-Dl -