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USN
Engineering Mathematics - I
Tirne: 3 hrs. Ma>'.. Marks: 80
Note: Answer any FIVE full questions, choosing one full qurestion f.rom each module.()oo!
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Find the nth derivative of -=l-.2x- +7x+ 6
Find the angle between the curves 12 sirr 2 0 :4 and 12 : 16 sin 2 13.
Module-2
e. Expand sin x in powers of (x - *) ,rpro fourth degree term.z
b. Evaluate lim xe. - log(1+ x) .
x-+0 X,
c. Ifu : x*y* z,uy : y* z,uwv : zthenlrn6 9.9'y-4-.6(u, v, w)
ORFind the Maclaurin's series expansion of sec x upto xo term.
If V(x,v-): (l-2xy * y')" unA *$- yg: t' V", then fincl K.ax'fu
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(05 Marks)
(S5 Marks)
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(05 S4arks)
(05 Markri)
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Find the radius ofcurvature ofthe curve represented by r: a(0 + 516 0) , y: a(1- eos 0).
OR
2 a. If y: (x + /11)'" then prove that (x2 - l)yn*, + (2n+ l)xp+r - Gf -m2)yn: 0.
b. Find the pedal equation of rn: a(1 + cos n 0).c. Find the radius of curvature of the curve rn : an sin n0.
.* a.
b.
Module-35 a. A particle moves along the curve whose parametric equations &r€r r- ,- t3 + 1, t' : t2 , z: 2t + 5
where t is the time. Find the component of its velocity at t: I in ttie directiorL of tr + J + 3K.Find also the component of its acceleration at t : 1 alorrg the norrnal to I + J + 3K. (05 &{arkr;}
b. VeriSu whether L: (2x+ yz) I + (4y + zx) J - (62 -xy)K is irrottLti:onral or not. And find the
scalar potential of A. (05 Marks)
c. If A is a vector point function and'$ is a scalar point function thc,r prove that
div($A):$divA-(grad$) A. (osMarkri)
c. If u -- r;n'l ^.*2y,*J1I ,n.r, firrd r4*u4 *r99.lr*+yo+zo.J Ax 'N 0z
OR1of 2
1sCHE12
ORa" 0.759 of aoal sample (carbon-90%), hydrogen-fo/a and ash 4a/o) was subjected to combustion
in a bomb calorimeter. Mass of water taken in the calorimeter was 35009 and the water
equivalerrl. of the calorimeter was 7509. The rise in temperature was found to be 3.2oC.Calculate the gross and net calorific values of a sample (Specific heat ofwater :4"l97kJlKgl"C;Latent heat of steam :2454kJlKg)
b. Expiain the modules, panels and arrays of PV cells.e. Explain the productircn of solar grade silicon by Union - Carbide process.
b. Explain the synthesis, properties and applications of silicone rubber.c. Explain tkre rnechanisrn of conduction in polyaniline
OR10 a. Explain:desalination of sea water by ion selective electrodialysis process.
Usdule-4a" Explain the types of polymerizatian with exarnple. (04l|[arks)b. What is glass transition temperature? Discuss any two factors affecting the glass transition
temperature, {06 Marks)c. Explain the synthesis and applications of the following :
D Plexi glassii) Polycarbonate
ORa. In a polymer sample, 20o/, of molecules have molecular mass i5000g/rnol,45a rnolecules
have mollecular mass 25000g/mol remaining rnolecules have rnolecular mass 27000g/mol,calculate the number average, weight average molecular mass of the polyrner. (06 Marks)
(05 Marks)(06 Marks)(05 Marks)
(06 Marks)
(05 Marks)(05 Marks)
(05 Marhs)
{06 Marks)(05 Marks)
Module-Sa. Exptrain th.e scatre and sludge formation in boiler. (0S Marks)b. Define COD. Discuss the experimental determination of COD of waste water. (85 N{arks)c. Write a note on ftillerences" (05 Marks)
ENplain tkre synthesis of nano rnaterials by Sol-Gel process. Mention its advantages.
c. Write a note on carbon nano tubes.
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USN 14CHF,L2l22ll:,',. , .-
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First/Second Semester B.E. Degree Examinationn D ec,20 1 5/.Ian.20 I 6
En g i n eeriegh Ghsrn istr,gr i1!',- .i.i ,:ir.. f - :
5 E qffiat is Stress Corrosjon]_Exf_lain caustic gmbrittlemsnt in bpilers. (05 Marks)
I .i *$O What is Metallic coating? Explain the process of galvdnization. (05 Marks)
(, \r\\,E dn,(il MopuLE - 3
E\(\* *5 a. 0.7g of chemical fuel containng 5% hydrogen, when burnt in a bomb calorimeter raises the
E " temperature of water from 29lK to 295K. The weight of water is 1.3kg and water.E equivalent of calorimeter is 0.35kg. The specific heat of water is 4.187kJ kg-t 1-t. The latent
t Time: 3 hrs. Max. M.rkt@-+ . S.l .'E Notez Answer any FIVEfull quesfions, selecting
_ .N*{ ONEfull questionfrom eoch tngduta
.,S.E
,{t MopuLE-t .b-e.: I a. Explain redox and gas electrodes with example. C(\ - (05 Marks)g i b. What are reference electrodes? Explain the construction anffio?king of Ag-AgCt
i*l ci,:iffifi;Ii1ltr#ifl:#,1::f#i*i,i', ' ',qi' (asmox*r
!S i) Voltage ii) Energyeffrciency iiD Shelflife. W (osMarks)
E B0 d. Discuss the construction and working of Li-MnO2battery.",* (05 Marks)
SEI E 2 a. Discuss the construction.and working of Znc-Ai, -ffirO, (05 Marks)E f b. What are Fuel cells? Give the classification ffiOt cells on the basis of temperature and.=o? E electrolyte. latx (05 Marks)
! [ c. What are Electrode concentration cells? $tv'e examplp, These.spontangqus galvanic cell
E S Tin I Tin ion(0.02m) ll Tin ion (0.06ntrlfin develops an emf of 0.0141V at298K Calculate
.P F the valency of tin. ^&* (05 Marks)
; € d. Explain the construction and
ffi"tglass electrodq. (05 Marks)
EEE E .o,\' MoDULE - 2
E ; 3 a. Discuss the rusting of irp$&f,sed on electro - chemical th_eory ofcorrosion. (05 Marks)
F B b. How does the followiq#tctors affect the rate of corrosioni '
5 63' :\ Nature of metd*friiJ Anodic and Cathodic polarization. (0s Marks)oi t)
6 € c. Define Metal fffiihg. Mention any four technological importance of metal finishing.EE 5.* ' ... (05lVlarks)
ig d. Writeaffi$& : i) Polarizationand ii) Overvoltage. (osMarks)
.E' $ 4 a. nxpffihe influence of the following in electro deposition :
BE i)qffinent densityand ii) pH. (05tvtarks)
E q b.o*ffiuss the electroplating of chromium with reactions. (05 Marks)\{Mh
b.c.
d.
of steam is 2454klkg. Calculate GCV and NCV of fueLExplain the terms 'Octans' and 'Cetane' numbers.Discuss the diffusion technique for p- and n- doping of silicon.Explain the design of solar module, panel and arays.
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6a.b.
c.
d.
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Explain the construction and working of Photovoltaic cell. (05 Marks)Deicribe the physical and chemical properties of silicon relevant to photovoltaics.
(05 Marks)
What is Knocking? Explain the mechanism of Knocking in
MODULE _ 4a. What is Polymerization? Describe addition and condensation polymerizat example.
(05 Marks)b. Explain three radical mechanism for addition polymerization taking$i?*yle chloride as an
example. t ?:-" (05 Marks)
/, I,
What 4rsl$anomaterials? Explain the size dependent properties of nanomaterials. (05 Marks)
c. Write the synthesis and applications of the following polymers fl? $ *
i) polyurethane and ii) Polycarbonate. '%,w (05 Marks)d. What are Polymer composites? Explain the synthesis of ffi fibre. (05 Marks)
a. What is Glass transition temperature? How is it inftmed byr) Molecular mass and ii) Stereo regularity.,* %r
(05 Marks)b. Discuss Structure - Property relationship of pffiffirs with respect to
i) Elasticity and ii) Chemical resistivity. 65W (05 Marks)c. A polymer sample containing 50, 100 ar:SYS0 molecules having molar mass 1000, 2000
and 3000 respectively. Calculate the {iiiqber average and weight average molecular mass ofpolymer. *#.fd (05 Marks)
d. What are Adhesives? Give the sffiftKis and application of epoxy resin. (05 Marks)
^ff MoDULE - sa. Explain boiler corrosio;We to oxygen, carbon dioxide and magnesium chloride with
reactions. *,-\P (05 Marks)b. What is COD? BxffiYhe estimation of COD of waste water. (05 Marks)c. Write a note on Wwires and nanorods. (05 Marks)d. What are Denhriffers? How are they prepared? (05 Marks)
10 a.
b.
c.spthesis of nanomaterial by chemical vapour condensation method. (0s Marks)
of sewage water sample was diluted to 500mt and equal volumes were taken in twobottles. During blank titration 100m8 of the sample required 9.8m0 of 0.025N NazSzO:
lution. Another 100mt, of incubated sample required 6.9m1, of 0.025N NazSzOr solution.Calculate BOD of sewage water sample. (05 Marks)What is Desalination? Explain desalination of sea water by reverse osmosis with neatlabeled diagram. (05 Marks)
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USN
First Semester B.E" Degree Examination,Programming in G ad Data
Tirne: 3 hrs.
Stnuctures
1sPCD13
Max. Marks: 80
(06 Marks)
(04 Marks)(06 Marks)
(05 Marks)
Note: Answer any FIVE full questions, choosingone full question from each module.
a.Whatisvariable?Explaintherules.,.ffivariablesinClanguage'Giveexampies
LU.
for valid and invalid variables.Evaluate the following expressions :
i) 100% 20 <: 20 - 5 + l00oh l0*20: : 5 > : 1 !: 20ii) a+: b *: c-: 5 where a: 3 b : 5 and c : 8.
Write a C program to find the area and perimeter of a rectangle.
C.
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'=!oEOOF
od
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C.
2a.
b.
ORWrite a C program which takes as input p, t, r. Compute the simple interest and display the
(06 Marks)
(04 Marks)
result.Convert the following mathematicalexpression into C expressions :
.. x v b(ad+e) c
b+c b-c b-a d
What is value of "x" in following code segments? Justifiz your answel's:i)inta,b;
float x ;
a:4;b:5;x:bla;
ii) int a, b ;
float x;a:4;b=5;x: (float) b/a ;
Module-23 a. Explain the syntax of do-while statement. Write a C program to find the factorial of a
number using do-while, where the number n is entered by user. (08 &Iarks)b. What is two way selection statement? Explain if, if else, and cascaded if-else with examples.
(08 Marks)
OR4 a. Write a C program that takes from user an arithmetic operator ('*', '-','*' or '/') and two
operands. Perform the corresponding arithmetic operation on the operands using srvitchstatement. (08 Marks)
b. What is an array? How to declare and initialize the two dimensional ar:ray? (08 Marks)
Module-35 a. What is a function? Write a C program to find the cube of a number using function.
(05 Marks)b. Write a C program to check a number is a prime or not using recursion. (05 Marks)c. Write a program to replace each constant in a string with the next one except letter "z' 'Z'
and oa', 'A'. Thus the string "programming in C is fun" should be modified as "Qsphsannjohjo D jt gvo"
l of 2(06 Marks)
15PCD13
OR6 a. Write a C program to sort the elements by passing affay as function argument. (08 Marks)
b. Write a C program to concatenate two strings without using built - in function strcat( ).(08 Marks)
la.b.
c.
Module-4What is structure? Explain the C syntax of structure declaration with example.
Write a C program to pass structure variable as function argument.
Explain fopen( ) and fclose( ) functions.
(05 Marks)(07 Marks)(04 Marks)
Module-59 a. What is a pointer? Write a C program to find the sum and mean of ail elements in an affay
8 a. Write a C program tostructure.
LU.
10 a.
b.L.
b. Explain fputc( ) , fputs( ), fgetc( )and fgets( ) functions with syntax.
using pointer.What is stack? Explain its operations with examples.
oR.Write a C program to swap two numbers using call by address.
Explain any five preprocessor diregtives in C.
What are primitive and non-primitive data types? Explain with examples.
ORstore and print name, USN, subject and IA marks of students using
(08 Marks)(08 Marks)
(08 Marks)(08 Marks)
(06 Marks)(05 Marks)(05 Marks)
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#xetr.$$)iUSN
First/Second Semester B.E. Degree
L4PCD13I23
Dic.2015lJan.20l6
(10 Marks)
Programming in 'G'and Data Structuresd .*q- \€ Time:3 hrs. Max. Marks:l'q$*6
E N otez Answer FIVE questions, selecting ONE full question from each ParLftoH PART_I
, * I a. Explain the structure of ooC" program with example. (08 Marks)
$g b. Explain scan( ) and print( ) function in 'C' language with syntax and examples. (08 Marks)x= , f Q c- J
"__
* i c. Write a 'C'program to find area of a circle. (04 Marks)dU
= r.)
S+ 2 a. What is an Algorithm? Write an algorithm to find largest of 3 numbers. (08 Marks)
E S b. Explain the following operators in 'C' language :
E 4 i) Relational iD Logical iii) Conditional. t08 Marks)
€ E c. What is an Identifier? Give any 5 rules that are to be followed, while declaring a variable.tr'tro B (04 Marks)Ra.EE; E PART-2aXE f 3 a. Explain the ELSE - IF ladder with syntax arrd example. (08 Marks)
E ! b. List the types of loops. Explain thvwoiking of any one type of loop with syntax andSE example. ,*",*f--a (08 Marks)$Ri
E .H c. Write a program to read u y.uffi input and find whether it is a LEAP YEAR or not.
€ t *1d*- " (0'l }Iarks)
5 ts ..{"' '
fi s 4 a. Explain SWITCH statemenfiwith syntax and example. (08 Marks)
EE b. Differentiate between WHILE and DO - WHILE loops. (06 Marks)
E q c. Write a program to fiad reverse of a number and check whether it is a PALINDROME oroji E not. r_"_ (06 -Vlarks)ot = ,"'ir-(, \8-a tE "q
E E ._neh pARr - 3
>.8 d \,*S ; "'"ph
' (07 Marks)
E g b. W#ffi. the advantages of using User- Defined functions? (06 Marks)
F X c. ffiT6 a program to read a sentence and print the frequencies of each VOWEL and total: ; y{cbunt of CONSONANTS. (07 Marks)o < fl)*/I ^ q6& a. Explain the different types of arrays, with syntax and examples. (07 Marks)
E ,|ft* u U. Explain any 4 string manipulating functions with examples. (08 Marks)
E-fuFe c. Define the following : i) Actual parameter ii) Formal parameter iii) Global
K\- variable iv) Local variable. (05 Marks)o.'
7a.b.c.
What is a FILE? Explain any 2FILE functions, with example.Write a program to maintain a record of "n" student details using an array of structures withfour fields (Roll number, Name, Marks and Grade). Each field is of an appropriate data
Define a STRUCTURE. Explut ,,*.*rffiJr*,ax and example.
type. Print the marks of the student given student name a5 input.
I of2
(10 Marks)
8a.b.c.
t4PCDt3t23,,
Differentiate between STRUCTURES and UNIONS. (05 Marks)Explain the various MODES in which a FILE can be created successfully. (05 Marks)Given 2 university information files "studentname.txt" and "usn.txt" that contains studep&tName and USN respectively. Write a program to create a new file called "output.txt'&'ipcopy the contents of files "studentname.txt" and "usn.txf into output file in the sffi$deshown below : ffidarks)
StudentName USNName - I USN_1Name - 2 USN-2
(05 Marks)(05 Marks)(05 Marks)(05 Marks)
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#dPART _ 5 %"*
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a. Define a PONTER. Explain how pointer variable is ffi#ared and initialized. (06 Marks)b. What are primitive and non - primitive data typgs*? Givb examples. (06 Marks)c. Write a program using pointers to compute surffiffiffn and standard deviation of all elements
stored in an array of "n" real numbers. ,*si,!Pts (08 Marks)
10 a. Explain any 2 pre - processor directives i{l 'C' language.b. What is a STACK? Explain its app,llchlidns.c. What is a QUEUE? Explain with exathple.d. Write a program to swap 2 nuriabefls using call - by - reference method.
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d.
5a.
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Max. Marks:i00
(08 i\{arks}fhe working of full
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First/Second Sernester ts.E. Degree Examination, Dec.2015 I Jan"2&16
Time: 3 hrs.Basic Electronics
Note: Answer FIVE fall questions, selectimgOYE .full q westion.from escla wodwle.
Module - Ia. Draw and explain the V-tr characteristics of a silicon diode.b. What is a rectifier? With a neat circuit diagram and waveforms, explain
wave rectifier.C)
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2 a. Draw and explain the input and output characteristics of cornmon emitter conflrguration.(0E l$ari<s)
b. Explain fullwave rectifier with capacitor filter with necessary waveforms. {s? Marks)c. In cornmon emitter transistor circuit if P : 100 and Is : 50 pA, compute the value s of {c, Ir
and a. (05 &{arks)
Module - 23 a. V/ith a neat circuit diagram, explain the voltage divider bias circuit by giving its exact
analysis. (08 Marks)b. For the base bias circuit for npn transistor, find Is, 16 and Vcs if'Rc :2.2 lKA^ Rs : 470 Kg),
c. A fultr wave rectifier with a load of 1 KT). The ac voltage applied to200-0-200 V, if diode resistance is neglected. Calculate:i) Average dc current; ii) Average dc voltage.
Vcc : 18 V, hi": 100. Draw the dc load line and Q point.c. What is op-amp? List the ideal characteristics of an op-amp.
a. Define for an op-amp (i) CMR.R, (ii) Slew rate, (iii) PSRR. (05 Marks)b. Show how an op-amp canbe used as integrator. Derive an expression for its output"
(S6 N{art<s)
c. For the circuit shown in Fig.Q4(c). Calculate the output voltage.
V, : -2V
n=:v
Fig.e4(c)What is voltage follower? Explain.
(S4 N{arks)
{CI4 Marks}
Convert:i) (35.4.5)io:( )zii) (47s.2s)8: ( )'oiii) (3FD)16: ( )z
Mpdule - 3
looI<JL
I af2(06 Marks)
b. State and prove Demorgan's theorems.c. Show that:
i) ABC+ B'+ tsD+anD+aC : B+ C
ii) AB+A+AE-0iii) AB+A(B + C) +B(B + C) = B+ AC
d. What are ulniversaX gates?
a. .Realize two input EX-OR. gate using only NAND gates.
b. Design full adder and implement it.c. Subtract (11100i)2 from (101011)2 using 2's complement method.d. Realize OR. gate using diodes and explain.
Module -,4.a. Define flip flop. Explain R-S fiip flop.b. With neat block rliagram, explain architecture of 8085 microprocessor.c. List the dlfference between microprocessor and microcontroller.
a. What is transcucer? Distinguish between active and passive transducer.b. With a neat sketcnr, explain construction and working of LVDT.c. Explain the working of photo voltaic transducerr
Module - 5&. What is modr"llation? What is the need of modulation?
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(06 Marks)
(06 Marks)
(S2 Marks)
(05 Marks)(07 Marks)(04 Marks)(04 Marks)
(05 Marks)
{10 Marks)(05 Marks)
(05 Marks)(07 Marks)(08 Marks)
(05 Marks)
(08 Marks)
(05 Marks)(85 Marks)(05 Marks)(04 Marks)
b. A 500 'W, i MHz canier is amplitude modulated with a sinusoidal signal of 1 kHz. The
depth of rnodulation is 50a/o. Calc*late the bandwidth, power in the siriebands and the totalpower transmitted. (07 Marks)
c. Define AM. Draw the AM signal and its spectrum. Derive the necessary expressions forAM.
10 a. With a block diagram, explain typical cellular mobile unit.b. What is IIiDN? Explain services of ISDN.c. Explain advantages and applications of optical fibers.d. Give ttre eomparisorL between AM and FM.
2 af2
USN
3a.
b.
ur'trAav
ElectronicsFirst Semester B.E. Degree
Basic
Time: 3 hrs.
Note: Answer any FIVE full questions, choosing one full question from each module.
Module-1a. For the circuit shown in fig.Q 1(a) draw the DC load line and locate Q * pt.
Max. Marks: 80
(04 Marks)
(S6 Marks)(05 Marks)
{S5 Marks)
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(t)6 Marks)(04 Marks)
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What is the need for capacitor filter? For a Half - Wave Rectifier, explain the operation ofC - f,rlter. (06 Marks)
Considering npn transistor in common emitter configuration, explain how it acts as voltageamplifier. (s6 Marks)
ORExplain the working of a Bridge Full - Wave Rectifier, with a neat circuit diagram and
waveforms. (06 Marks)
Discuss the load and line regulation using zenff diode with neat circuit diagram and
appropriate expressions. (06 Marks)
c. Calculate the values of Is and Ie for a BJT with cr6s: 0.97 and In : 50 ;.rA. Determine B6..(0zl Marks)
Module-2Precisely analyse the circuit of voltage divider bias and hence determine the Vc and Vcr.Mention the advantages of voltage divider bias. {10 Marks)
Derive an equation for output voltage for a non - inverting Op - amp. Find the gain ofamplifier if R.p : 10K0 and Rr : lKO. (06 Marks)
ORA base bias circuit with a 12V supply uses a transistor with hre : 70. Design the circuit so4a.
b.
L.
that Ic :2mA and Vcs: 9V (Assume RE: 0).Explain the working of Op - amp as integrator.Derive the expression of 3 input summing amplifiers.
N'Iodule-3a. Convert the following : i) 172.625x01: ( )z ii) (ABCD"72)ru: (
ii, (io1 1 1 i01.010r)r:( )ro.b. Perform the following operations using 1's and 2's compliment technique
0 (56)ro - (79)ro ii) (23),0 - (18)ro.c. State and prove de Morgan's theorem using truth table for 2 variables.
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ORExplain fu1l adder circuit with truth table. Realise the circuit for sum and can"y using basic6a.
b.
14.
b"
8a.
b.
9a.
b.
gates. Also write the diagram showing FA using two half adders.
Simplify andrealize the following expressions using only NAND and NOR..
D Y:(A+E)(B+C)(e+B) i, Y:AB+AC+BD+CD.
(06 Marks)
(10 Marks)
c. Briefly explain the working of thermistor. Mention its applications.
OR10 a. Explain the frequency modulation with necessary waveforms. Bring out
between AM and FM.b. Explain construction and the principle of operation of LVDT.
Module-4Explain the operation of NOR Latch with symbol, circuit and truth table. (&6 Marks)
With a neat block diagram, explain the architecture of 8051 microcontroller. (10 Marks)
ORHow is Fnip - Flop different from aLatch? Explain the gated RS Flip - Flop with symbol,circuit and truth table. (08 Marks)Interface stepper motor to 8051 microcontroller with a neat block diagram. Explain itsworking principle. (08 Marks)
Module-SExplain Amplitude Modulation with relevant waveforms. Derive the equation forinstantaneous value of modulated signal in volts and define modulation index. (08 Marks)Define the term transducer. Mention any four characteristics a transducer should posess.
(02 Marks)(05 Marks)
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First Sernester B.E. Degree Examination, January
COMPUTER AIDED ENGINEERING DRAWITSG
(coMMoN TO ALL BRANGHES) Max. Marks: 80
Note: 1. Answer three full questions. 2. Use 44 sheets supplied.
3. Draw to actual scale. 4. Missing data, if any, rnay be assumed suitably.
1. a. A point is 30 mm behind VP, 30 mm above HP and 25 mrn in front / 10 Marksbehind /from LPP. Draw its proiections and name the side view.
b. A line AB has its end A 20 mrn above the FIP and 15 rnm in front of the t5 MarksVP. The other end B is 60 mm above the HP and 45 mrn in front of ry'F.
The distance between end projectors is 70 mm. Draw'its prc,jections.Determine the apparent lengths and true inclinations.
OR
I. A 30'-60" set square of 50 mm longest side is so kept such that the 25 Markslongest side is in HP, making an angle of -l0o with VP. The set square
itself is inciined at 45" to HP. Draw the projections of the set square.
2. A hexagonal pyramid 25 rnrn sides of base and 50 mm axis length is 30 Markssuspended freely from a corner of its base. Draw the projections of the
pyramid when the axis appears to be inclined to VP at 45'.
3. A frustum of a square pyamid has its base 40 mm sides, top i5 rnrn sides 25 Mar[<sand height 60 mm, its axis is verticai and side of base is paratrlel to VP.Draw the projections of the fiustum and show the deveiopment of thelateral surfaces of it.
OR
3. A pentagonal pyamid of base side 30 mm and axis length 60 nam is 25 Marksresting on FtrP on its base with a side of base perpendicular to VF. Drawits isometric projections.
