Download - Subject Code: R13205/R13 Set No - 1 I B.Tech II Semester … · I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 COMPUTER PROGRAMMING (Common to ECE, EEE, EIE,

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Subject Code: R13205/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. – 2015/2016

COMPUTER PROGRAMMING (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E)

Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B

Answering the question in Part-A is Compulsory,

Three Questions should be answered from Part-B

****

PART-A

1. (a) C is a structured programming language? Justify.

(b) Differentiate between for and while statements.

(c) Explain about the parameter passing using copy by address.

(d) Explain about the *, ** and & keywords.

(e) Explain about the masks.

(f) Differentiate between scanf and fscanf functions with examples.

[3+4+3+4+4+4]

PART- B

2. (a) Explain about different computer languages.

(b) Write a program to calculate the series: 1+ ½+1/3+1/4+1/5…..+1/n

[8+8]

3. (a) Explain about the iterative statements with examples.

(b) Write a program to find the factorial of a given number.

[8+8]

4. Define function? How to declare function? Create functions with and without inputs and

outputs.

[16]

5. (a) What is pointer? How to initialize pointers? Give examples.

(b) Write a program to swap two numbers using pointers.

[8+8]

6. (a) Differentiate between structure and union?

(b) Write a program to calculate the grade and total marks of the given student using

structures.

[8+8]

7. (a) What are different types of files? Explain.

(b) Write a program to display contents of the file on screen.

[8+8]

****

Set No - 1

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ELECTRICAL CIRCUITS ANALYSIS-I (EEE)




*****

PART-A

1. (a) State Kirchhoff’s laws. What are its limitations?

(b) Define phase angle and phase difference.

(c) A series RLC circuit has R=80 ohms, L=100 µH, C=0.3 µF. Find the resonant frequency

and current at resonance if the supply voltage is 10 V.

(d) State Faraday’s laws of electromagnetic induction.

(e) Write the properties of dual networks.

(f) State compensation theorem.

[4+4+4+4+3+3]

PART-B

2. (a) Explain the star-to-delta and delta-to-star transformation for a resistive network.

(b) Find a single source equivalent at the terminals of a circuit shown in fig.1

[8+8]

3. (a) Two coils A and B are connected in series across a 240 V, 50 Hz supply. The resistance

of coil A is 5 ohms and inductance of coil B is 0.015 H. If input from the supply is 3 kW

and 2 kVAr, find the resistance of coil B and inductance of coil A. Also calculate voltage

across each coil.

(b) A resistance R, an inductance L=0.01 H, and a capacitance C are connected in series.

When a voltage )10-cos(3000t 4000

=v volts is applied to the series combination, a

current flowing is )55-cos(3000t 210 0=i amperes. Find R and C.

[8+8]

4. (a) Show that resonant frequency ωn of RLC series circuit is geometric mean of lower and

upper half-frequencies ω1 and ω2.

Page 1 of 2

2 Ω 10 Ω

20 V

Fig.1

2 Ω

10 V

1 A 5 Ω 2 A

A

B

Set No - 1

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Subject Code: R13212/R13

4. (b) Find the value of L so that the circuit shown in fig.2 resonates.

Fig.2

[8+8]

5. (a) Explain the dot convention in coupled circuits.

(b) A magnetic circuit consists of an iron ring of mean circumference 80 cm with cross-

sectional area of 12 cm2 throughout. A current of 2A in the magnetizing coil of 200 turns

produce a total flux of 1.2 m Wb in the iron. Calculate: (i) the flux density in the iron (ii)

the absolute and relative permeability of iron (iii) the reluctance of the circuit.

[7+9]

6. (a) Explain the procedure to form the tie-set matrix of the given network. Discuss the

advantages of tie-set matrix.

(b) For the network shown in Fig.3, obtain the fundamental cut-set matrix.

[8+8]

7. (a) State and explain the Maximum power transfer theorem.

(b) Find VL in the circuit shown in fig.4, using superposition theorem.

[8+8]

*****

Page 2 of 2

E, 60 Hz

81 Ω -j43.2 Ω

15 Ω L

~

Fig.3

2Ω 1Ω 4 Ω

3 Ω

5 A

Fig.4

7 A 4V

+

-

VL

5Ω

8Ω +

-

4Ω

3 A

3Ω

Set No - 1

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ENGINEERING CHEMISTRY (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E)




*****

PART-A

1. (a) A coal sample gave the following analysis C = 66.2%, H = 4.2%, O = 6.1%, N = 1.4%,

S = 2.9% and remaining ash. If one Kg of coal is burnt with 25 % excess air, determine

the quantity of products of combustion.

(b) Write short notes on: (i) Biodegradable polymers (ii) Break point chlorination

(iii) Electroless plating (iv) Electrode potential

(v) Stereo-specific polymers

[7+(3+3+3+3+3)]

PART-B

2. (a) What are boiler troubles? Explain the formation and disadvantages of scale and sludge

particles in boilers.

(b) Write notes on preparation and applications of phenol formaldehyde resins.

(c) Explain the refining of petroleum.

[6+5+5]

3. (a) What is meant by reference electrode? Explain principle and working of primary

reference electrode.

(b) Write notes on differential aeration and pitting corrosion.

(c) Write notes on green house effect.

[6+5+5]

4. (a) Explain theory of dry corrosion and nature of oxide film formed on the metal surface.

(b) Explain the functions of lime and soda in removal of permanent and temporary hardness

of water sample, give chemical reactions.

(c) Explain the anionic addition polymerization with example.

[6+5+5]

5. (a) Write notes on preparation and uses of BUNA-S and Thiokol.

(b) Explain the conductance behavior of weak electrolyte and strong electrolyte.

(c) Write any one method for synthesis of CNTs

[6+5+5]

6. (a) What is meant by ultimate analysis. Explain the determination of carbon and nitrogen

content in a coal sample.

(b) Describe a method for estimation of hardness of water.

(c) Explain the working of Ni-Cd cell with suitable reactions.

[6+5+5]

7. (a) What is setting and hardening of cement. Explain with proper chemical reactions.

(b) Define Calorific value of a fuel. Write notes on HCV and LCV.

(c) What is meant by organic surface coating? Write notes on constituents of paints.

[6+5+5]

****

Set No - 1

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ENGINEERING DRAWING (Common to CE & ME)




*****

PART-A

1. (a) A regular pentagonal lamina of 30mm sides has one edge in HP and inclined at an angle

of 300 to VP. Draw its projections when its surface is inclined at 45

0 to HP.

(b) Draw the isometric view of Fig.1

Fig.1

[10+12]

PART-B

2. (a) Construct a diagonal scale of RF=1/32 showing yards, feet and inches and to measure up

to 4 yards.

(b) A plot of ground is in the shape of a rectangle 110m x 50m. Inscribe an elliptical lawn in

it. Take a suitable scale.

[8+8]

3. (a) A 100mm long line is parallel to and 40mm above the HP. Its two ends are 25mm and

50mm in front of the VP respectively. Draw its projections and find its inclinations with

the VP.

Page 1 of 2

Set No - 1

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3. (b) A point A is situated in the first quadrant. Its shortest distance from the intersection point

of HP; VP and auxiliary plane is 60mm and it is equidistant from the principal planes.

Draw the projections of the point and determine its distance from the principal planes.

[8+8]

4. The projectors drawn from the HT and the VT of a straight line AB are 80mm apart while

those drawn from its ends are 50mm apart. The HT is 35mm in front of the VP; the VT is

55mm above the HP and the end A is 10mm above the HP. Draw the projections of AB

and determine its length and inclinations with the reference planes.

[16]

5. A plane figure composed of an equilateral triangle ABC and a semicircle AC as diameter.

The length of the side AB is 50mm and is parallel to the VP. The corner B is 20mm

behind the VP and 15mm below the HP. The plane of the figure is inclined at 450 to the

HP. Draw the projections of the plane figure.

[16]

6. (a) Draw the projections of a cylinder 75mm diameter and 100mm long, lying on the ground

with its axis inclined at 300 to the VP and parallel to the ground.

(b) A square pyramid base 40mm side and axis 65mm long, has its base in the VP One edge

of the base is inclined at 300 to the HP and a corner contained by that edge is on the HP.

Draw its projections.

[10+6]

7. Draw Fig.2 (i) Front view (ii) Top view (iii) Right side view

Fig.2

[16]

**** Page 2 of 2

Set No - 1

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ENGINEERING DRAWING (Common to CSE, PCE, IT, Chem E, Aero E, Auto E, Min E, Pet E, & Metal E)




*****

PART-A

1. (a) A thin rectangular plate of sides 60mm x 30mm has its shorter side in VP and inclined at

300 to HP. Project its top view, if its front view is a square of 30mm long sides.

(b) Draw Fig.1 (i) Front view (ii) Top view (iii) Right side view

Fig.1

[10+12]

PART-B

2. (a) Draw a scale of full size, showing 1/100 inch and measure up to 5 inches.

(b) Construct a regular pentagon of side 30mm.

[10+6]

3. (a) A point P is 20mm below HP and lies in the third quadrant. Its shortest distance from xy

is 40mm. Draw its projections.

Page 1 of 2

Set No - 1

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3. (b) The top view of a 75mm long line measures 55mm. The line is in the VP; its one end

being 25mm above the HP. Draw its projections.

[8+8]

4. (a) The front view of a line AB measures 70mm and makes an angle of 450 with xy. A is in

the HP and the VT of the line is 15mm below the HP. The line is inclined at 300 to the

VP. Draw the projections of AB, and find its true length, inclination with the HP and its

HT.

(b) The projections on the XY line of the horizontal and vertical traces of a straight line AB

in the first quadrant are 120mm apart. The VT is 100mm above XY and HT 50mm in

front of XY. The points A and B are 30mm and 80mm above the HP respectively. Draw

the projections.

[10+6]

5. (a) Draw the projections of a pentagonal sheet of 26mm side, having its surface inclined at

300 to VP. Its one side is parallel to VP and inclined at 45

0 to HP.

(b) An equilateral triangle of 5cm side has its VT parallel to and 2.5cm above xy. It has no

HT. draw its projections when one of its sides is inclined at 450 to the VP.

[10+6]

6. Draw the projections of a cone, base 75mm diameter and axis 100mm long, lying on the

ground on one of its generators with the axis parallel to the VP.

[16]

7. Draw the isometric view of Fig.2

Fig.2

[16]

Page 2 of 2

Set No - 1

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I B.Tech II Semester Supplementary

ENGINEERING MECHANICS(Common to ECE, EEE, EIE, Bio

Time: 3 hours Max. Marks: 70

Question Paper Consists of

Answering the question in

Three Questions should be answered from

1. (a) Find the unit vector of the force F= 4 i

(b) What is the principle of transmissibility

(c) Use Pappus theorem to find the volume of a sphere of radius r.

(d) State the Parallel axis theorem.

(e) State the condition for the dynamic equilibrium of a

(f) What is instantaneous cen

2. (a) A block weighing 1000 N is kept on a rough plane inclined at 40

coefficient of friction between the block and the plane is 0.4. Determine the smallest

(least) force inclined at 15

(b) A frame is loaded as shown in Fig.

Subject Code: R13210/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. –

ENGINEERING MECHANICS (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E)


Question Paper Consists of Part-A and Part-B



****

PART-A

Find the unit vector of the force F= 4 i -5 j + 8 k.

e principle of transmissibility?

Use Pappus theorem to find the volume of a sphere of radius r.

State the Parallel axis theorem.

he condition for the dynamic equilibrium of a body under translation.

What is instantaneous centre of rotation in plane motion?

PART-B

A block weighing 1000 N is kept on a rough plane inclined at 400 to the hori


(least) force inclined at 150 to the plane required just to move the block up the plane.

A frame is loaded as shown in Fig. 1. Find the support reactions.

Fig.1

1 of 3

– 2015/2016


body under translation.

[4+3+4+4+3+4]

to the horizontal. The


to the plane required just to move the block up the plane.

[8+8]

Set No - 1

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3. (a) Forces 32 kN, 24 kN, 24 kN, and 120 kN

directed through the points whose coordinates are A (2,1,6), B(4,

D(5,1,-2). Determine the resultant.

(b) State and prove Varignon’s theorem.

4. (a) Calculate the moment of inertia of the section shown in Fig.

yy axis.

(b) State and prove perpendicular

5. (a) Find the mass moment of inertia of a thin circular disc (l

(b) Locate the centroid for the area shown in Fig.3


kN, 24 kN, 24 kN, and 120 kN, are concurrent at the origin and are respectively

directed through the points whose coordinates are A (2,1,6), B(4,-2-5), C(

2). Determine the resultant.

arignon’s theorem.

Calculate the moment of inertia of the section shown in Fig. 2 about its centroidal xx and

Fig.2

State and prove perpendicular axis theorem.

Find the mass moment of inertia of a thin circular disc (lxx, lyy, and lzz).

for the area shown in Fig.3.

Fig.3

2 of 3

, are concurrent at the origin and are respectively

5), C(-3,-2,1), and

[8+8]

about its centroidal xx and

[8+8]

[10+6]

Set No - 1

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6. (a) Two cars A and B are travelling in adjacent highway lanes. At an instant of time, their

positions and speeds are as shown in Fig.4

and car B has a constant deceleration of 0.5 m/s

(i) When and where car A will overtake car B and

(ii) The speed of each car at that time.

(b) What is the angle turned by a wheel while it starts from rest and accelerates at a constant

rate of 3 rad/s2 for an interval of 20 s

7. (a) Define impulse-momentum principle.

(b) Define work energy equation


Two cars A and B are travelling in adjacent highway lanes. At an instant of time, their

and speeds are as shown in Fig.4. If car A has constant acceleration of 0.8 m/s

has a constant deceleration of 0.5 m/s2, determine

car A will overtake car B and

he speed of each car at that time.

Fig.4

What is the angle turned by a wheel while it starts from rest and accelerates at a constant

for an interval of 20 sec. ?

momentum principle.

efine work energy equation.

****

3 of 3

Two cars A and B are travelling in adjacent highway lanes. At an instant of time, their

. If car A has constant acceleration of 0.8 m/s2

What is the angle turned by a wheel while it starts from rest and accelerates at a constant

[12+4]

[8+8]

Set No - 1

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ENGINEERING PHYSICS (Common to CE, ME, CSE, PCE, IT, Chem E, Aero E, Auto E, Min E, Pet E, Metal E)


Question Paper Consists of Part-A and Part-B



****

PART-A

1. (a) State and explain Rayleigh’s criterion for resolution.

(b) Define numerical aperture and express it in terms of fractional refractive index change.

(c) How does a SQUID work?

(d) State Gauss divergence and Stokes theorems.

(e) Derive an expression for the de-Broglie wavelength of an electron accelerated through a

potential of V volts.

(f) Distinguish between direct and indirect bandgap semiconductors

[4+4+4+4+3+3]

PART-B

2. (a) How interference phenomenon occurs in Newton’s Rings? Derive the conditions for

bright and dark circular rings in terms of Diameters.

(b) Explain the phenomenon of double refraction.

(c) What is dielectric break down? Explain.

[8+4+4]

3. (a) Describe the construction of He-Ne Laser. Explain its lasing action with energy level

diagram.

(b) Discuss characteristics of lasers.

(c) Deduce an expression for conductivity of an intrinsic semiconductor.

[8+4+4]

4. (a) What are magnetic materials? Distinguish between ferro, anti ferro and ferri magnetic

materials.

(b) Define Electric polarization and discuss various types of polarizations in dielectrics.

(c) What are positive and negative crystals?

[8+4+4]

5. (a) State and explain Maxwell’s equations and express them in differential form.

(b) A hall of volume 5500m3 is found to have a reverberation time of 2.3s. The sound

absorbing surface of the hall has an area of 750m2. Calculate the average absorption

coefficient.

(c) Explain the terms (i) Dielectric loss (ii) Dielectric strength [8+4+4]

1 of 2

Set No - 1

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6. (a) Explain the classification of solids into conductors, semi conductors and insulators on the

basis of Band theory.

(b) Describe the basic assumptions of classical free electron theory.

(c) Determine the lattice constant for a FCC crystal having an atomic radius of 0.1476nm

[8+4+4]

7. (a) What is Hall Effect? Deduce an expression for Hall coefficient.

(b) Explain any four applications of Hall coefficient.

(c) Explain the concept of Josephson junction.

[8+4+4]

****

2 of 2

Set No - 1

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ENGLISH-II (Common to All Branches)




*****

PART-A

1. (a) What are the changes in modern technology according to E.F Schumacher that has made it

inhuman ?

(b) List the factors responsible to stabilize climate in different parts of the world?

(c) Write some measures that are used to prevent soil erosion?

(d) What are the two kinds of technologies currently used to generate solar power on a large

scale?

(e) What was Sarabhai’s educational background?

(f) Give an account of Bhabha’s education after school.

(g) Why did Bose shift his interests? What was his contribution to both the fields he worked

in?

[3+3+3+3+3+3+4]

PART-B

2. (a) What are the problems faced by humans because of extensive technological growth? What

is the alternative technology suggested by E. F. Schumacher? How useful and practical is

it?

(b) Add one prefix to each of the words given below to form a meaningful word. Write one

sentence each using the word after adding a prefix.

(i) Aware (ii) Understand (iii) Literate (iv) Regular

(c) Add a suffix to each of the words given below to form a meaningful word. Write one

sentence each using the word after adding a suffix.

(i) child (ii) Self (iii) Wise (iv) bond

[8+4+4]

3. (a) How and what brings solace to a person? Explain from Abdul Kalam’s point of view.

(b) Write an email to your principal with a copy to your administrative officer asking for

two-bed facility in your dispensary/medical centre to accommodate students who fall sick/

require medical support.

(c) Correct and rewrite the following sentences:

(i) You will get all these informations from the textbook.

(ii) He is working in a bank for the past several months.

(iii) She, along with her sisters, are coming.

(iv) If you are good to people, you will be treated well by themselves.

[8+4+4]

4. (a) Compare and contrast Sambu’s reaction to his father’s film with his mother’s.

(b) Write a antonym for each of the words given below and use the antonym in a sentence

(i) inclusive (ii) restrain (iii) productive (iv) practical

(c) Write a synonym for each of the words given below and use the synonym in a sentence

(i) unwavering (ii) adverse (iii) delight (iv) cruel

[8+4+4]

Page 1 of 2

Set No - 1

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5. (a) What are the various stages to become unattached to work according to Swamy

Vivekananda? Can this be possible in the present world? Explain with examples.

(b) Write a letter to the Managing Director, Bharat Heavy Electricals Limited, Hyderabad,

seeking a job as Assistant Engineer. Try to highlight your credentials suitable for job.

[8+8]

6. (a) In what ways can emerging technologies help humanity? What are their disadvantages?

(b) Describe the features of your mobile phone.

(c) Write the meanings of each of the expressions/idioms given and use them in a sentence.

(i) put out (ii) see eye to eye (iii) give a free hand (iv) carry about

[8+4+4]

7. (a) Write a technical report on the feasibility of laying roads to all the villages in our new

state.

(b) Match the words given in column A with their meanings in column B

Column A Column B

1 inevitable A Living forever

2 prophesy B To come out of something

3 vulnerable C Certain to happen

4 emanate D A prediction of what will happen in the

future

5 immortality E Come to an end

6 Cease F That which can be easily hurt or affected

G Talking about the past

[10+6]

*****

Page 2 of 2

Set No - 1

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MATHEMATICS-III (Common to All Branches)




****

PART-A

1. (a) Find the Rank of the matrix

0 1 2

1 4 2

2 6 5

using Echelon form

(b) Prove that the matrix A and AT

have same Eigen values

(c) Find the volume of loop of the curve 2 revolves about x-axis

(d) Evaluate

1

(e) Prove that 0 where a is a constant vector

(f) Evaluate . where 2 3 along the straight line joining

(0,0,0) and (2,1,1)

[3+3+4+4+4+4]

PART-B

2. (a) Test for consistency and solve 5 3 7 4,3 26 2 9, 7 2 10 5.

(b) Solve the equations

$ 2,7 3 $ 12,8 3$ 5,10 5 3 2$ 20. by Gauss-Jordan method

[8+8]

3. (a) Verify Cayley Hamilton theorem for

1 0 3

2 1 1

1 1 1

A

= − −

, hence compute A4 and A

-1

(b) Reduce the quadratic form 2 2 23 5 3 2 2 2x y z yz zx xy+ + − + − in to canonical form by

orthogonal reduction hence find rank, index and signature .

[8+8]

4. (a) Trace the curve 3 3cos , sinx a y bθ θ= =

(b) Evaluate the /

2 2

0 /( )

a x a

x ax y dxdy+∫ ∫ by change of order of integration [8+8]

Page 1 of 2

Set No - 1

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5. (a) Prove that .( ) .( ) .( )f g g f f g∇ × = ∇ × − ∇ ×

(b) Find the angle between the surfaces 2 2 2 2 212 & 5x y z x y z+ − = + − = at (2, 2, 1)

[8+8]

6. (a) Evaluate 3 2 2

s

x dydz x ydzdx x zdxdy+ +∫∫ over the surface bounded by the planes

z = 0, z = b and the cylinder x2+y

2=a

2.

(b) Evaluate 245v

x ydxdydz∫∫∫ and v is the region bounded by x = y = z = 0 and 4x+2y+z = 8

[8+8]

7. (a) Evaluate 24

0

3x

dx

∞

−

∫

(b) Prove that ( ) (1 )sin

n nn

ππ

Γ Γ − =

[8+8]

****

Page 2 of 2

Set No - 1

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MATHEMATICS-II (MATHEMATICAL METHODS) (Common to CE, ME, CSE, PCE, IT, Chem E, Aero E, Auto E, Min E, Pet E, Metal E)




*****

PART-A

1. (a) Find the root of the equation 3x = 1+cosx by Iteration method.

(b) Prove that ( )

log ( ) log 1( )

f xf x

f x

∆∆ = +

(c) Evaluate y (0.2) by Euler’s method for , (0) 1dy x y

ydx y x

+= =

−.

(d) Find 1

( 1)!Z

n

+

(e) Obtain Half range sine series for f(x) = cosx in [0, 1]

(f) Find finite Fourier cosine transform of f(x) = x+a for 0 < x< π

[3+3+4+4+4+4]

PART-B

2. (a) Evaluate 1/ 12 using Newton Raphson method

(b) Find the Real root of 4sinx = ex by False position method

[8+8]

3. (a) Fit a cubic polynomial for the following data

0 1 2 51, 2, 1, 10.y y y y= = = =

(b) Find the Missing terms in the following data

x 45 50 55 60 65

y 3 -- 2 -- -2.4

[8+8]

4. (a) By modified Euler’s formula find y(0.01), y(0.02) given that , (0) 1dy

y ydx

= − =

(b) By RK method of fourth order find y (0.1), y(0.2) given that 21 , (0) 0dy

y x ydx

= + + =

[8+8]

Page 1 of 2

Set No - 1

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5. (a) Find the Fourier series of ( ) 0 2xf x e x π

−= < < in (-π, π) ,

(b) Find the Half range cosine series for

02

( )

( )2

kx x

f x

k x x

π

ππ π

< <

= − < <

[8+8]

6. (a) Find the Fourier cosine transform of 1

x

(b) Find the Fourier sine transform of ax

e

x

−

[8+8]

7. (a) Solve the difference equation 2 1 0 15 6 3 5, 1, 3n n n

y y y n y y+ +

− + = + = = using Z-Transforms

(b) Find 2

1

2( 2 2)

zZ

z z

−

+ + [8+8]

****

Page 2 of 2

Set No - 1

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NETWORK ANALYSIS (Common to ECE, EIE, E Com E)




*****

PART-A

1. (a) Give the advantages and disadvantages of tie-set matrix.

(b) A two element series circuit R=10 ohms and XL=40 ohms has an effective applied voltage

of 230 V. Find real power and power factor in the circuit. Draw power triangle.

(c) Define quality factor and bandwidth in series resonant circuits and write its expressions.

(d) State Substitution theorem and write its merits over other theorems.

(e) Give the condition for reciprocity and symmetry in case of h-parameters.

(f) Write the procedure to evaluate the initial conditions in electrical circuits.

[4+3+4+4+3+4]

PART-B

2. (a) Define: (i) Loop (ii) Planar graph (iii) Oriented graph

(iv) Loop (v) Path (vi) Connected graph

(b) Determine voltage at node 2 and the power supplied by the dependent current source in the

network shown in fig.1.

[8+8]

3. (a) A 200 V, 50 Hz AC supply is applied to a coil of 0.08 H inductance and 3.5 Ω resistance

connected in series with a 7.2 µF capacitor. Calculate (i) Impedance (ii) Current

(iii) Phase angle between current and voltage (iv) power factor (v) power consumed.

(b) A current of (120-j50)A flows through a circuit when applied voltage is (8+j12)V.

Determine: (i) impedance (ii) power factor (iii) power consumed and reactive power

[8+8]

4. (a) Obtain the expression for frequency at which maximum voltage across the capacitance

occurs in a series resonant circuit.

(b) Two magnetically coupled coils have 500 and 1000 turns respectively. A current of 1 A in

coil 1 produces a flux of 0.5 mWb links all turns of the coil 1 only and a mutual flux of 0.7

mWb. Find L1, L2.

[8+8]

5. (a) State and explain substitution theorem.

Page 1 of 2

3

+

Fig.1

V3

6 A -

40 Ω

0.5 V3

+

-

0.01 V3

20 Ω

10 Ω

2 1

Set No - 1

|''|'||'|''|''||'|'|


5. (b) Find current through RL using Thevenin’s theorem for the circuit shown in fig.2.

[8+8]

6. (a) The Z-parameters of a two port network are Z11=15 Ω, Z22=24 Ω, Z12=Z21=6 Ω. Determine

ABCD parameters.

(b) Find the z-parameters of the two port network shown in fig.3

[8+8]

7. A series RL circuit with R=200 ohms and L= 3H has a sinusoidal voltage source

)sin(600t 100 φ+ applied at time when 0=φ . (i) Find the expression for current (ii) At what

value of φ must the switch be closed so that the current directly enter steady state.

[16]

*****

Page 2 of 2

j30 Ω

+

- ~

9 Ω 60 V

- j 5 Ω

RL= 2Ω 2 Ω

Fig.2

4 Ω

V1

21

Fig.3

4 Ω

2 F

8 Ω

2 F

1

11

2

V2

I1 I2

Set No - 1

|''|'||'|''|''||'|'|


PROFESSIONAL ETHICS & HUMAN VALUES (Common to CE, ME, CSE, PCE, IT, Chem E, Aero E, Auto E, Min E, Pet E, Metal E)




*****

PART-A

1. (a) What is meant by voluntarism?

(b) Suggest methods to reduce risk levels?

(c) What part does legal aspect play in Engineering?

(d) Write about reverse discrimination?

(e) Give the essence of Indian spirituality.

(f) Bring out the difference between profession and professionalism.

(g) What is relevant information?

[3+3+3+3+3+3+4]

PART-B

2. (a) What is conscientiousness?

(b) How does learning from the past help in the making of a new product?

[8+8]

3. (a) Write about whistle blowing?

(b) What are two senses of loyalty?

[8+8]

4. (a) Is absolute safety of any product possible? Discuss.

(b) Explain categories of accidents.

[8+8]

5. (a) Elaborate the ethical dilemmas associated with weapon development.

(b) Environmental movement increases awareness among Engineers. Discuss.

[8+8]

6. (a) Explain the classification of human values.

(b) Is service a part of learning? Explain.

[8+8]

7. (a) Differentiate a gift and a bribe

(b) What is meant by occupational crimes?

[8+8]

****

Set No - 1

Download - Subject Code: R13205/R13 Set No - 1 I B.Tech II Semester … · I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 COMPUTER PROGRAMMING (Common to ECE, EEE, EIE,

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