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JNTUWORLD Code No: W0123/R07 Set No. 1 II B.Tech I Semester Supplementary Examinations, April/May 2011 SURVEYING (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks 1. (a) Define Surveying. Explain its importance for civil Engineers. (b) What is meant by Reconnaissance Survey. (c) A Chain was tested before starting a survey and was found to be exactly 30m. At the end of the Survey, it was tested again and found to measure 30.10m. The area of the plan of the field drawn to a sale of 1cm = 20m was 160 square centimeters. Find the true area of the field in square metres. [5+3+8] 2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset. (b) Find the maximum length of offset so that the displacement on paper from both sources of error does not exceed 0.2 mm given that the offset is measured with an accuracy of 1 in 25 and the scale is 1cm = 50m. [8+8] 3. During a construction work, the bottom of a sunshade A was taken as a temporary B.M having R.L=63.120m. The following readings were taken: Inverted staff reading on B.M at A = 2.232 m Reading on peg P on ground = 1.034m change of instrument [Reading on peg P on ground = 1.328] Invered staff reading on the bottom of cornice B=4.124m Enter the readings in a level book page and calculate the R.L of cornice B. Use H.I method. [16] 4. Calculate the area between the survey line, the hedge and the end offsets by (a) Trapezoidal rule and (b) Simpson’s rule [8+8] From the following field measurements of perpendicular offsets taken from a chain line to a hedge: Chainage (m) Offsets (m) Chainage (m) Offsets (m) 0 7.6 70 9.5 15 8.5 80 8.3 30 10.7 100 7.9 45 12.8 120 6.4 60 10.6 140 4.4 5. (a) Draw a neat sketch of a transit theodolite and explain the functions of its various components. 1 of 2 www.jntuworld.com www.jntuworld.com
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Page 1: 5

JNTUWORLD

Code No: W0123/R07 Set No. 1

II B.Tech I Semester Supplementary Examinations, April/May 2011SURVEYING

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

? ? ? ? ?

1. (a) Define Surveying. Explain its importance for civil Engineers.

(b) What is meant by Reconnaissance Survey.

(c) A Chain was tested before starting a survey and was found to be exactly 30m.At the end of the Survey, it was tested again and found to measure 30.10m.The area of the plan of the field drawn to a sale of 1cm = 20m was 160 squarecentimeters. Find the true area of the field in square metres. [5+3+8]

2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset.

(b) Find the maximum length of offset so that the displacement on paper fromboth sources of error does not exceed 0.2 mm given that the offset is measuredwith an accuracy of 1 in 25 and the scale is 1cm = 50m. [8+8]

3. During a construction work, the bottom of a sunshade A was taken as a temporaryB.M having R.L=63.120m. The following readings were taken:Inverted staff reading on B.Mat A = 2.232 mReading on peg P on ground = 1.034mchange of instrument[Reading on peg P on ground = 1.328]Invered staff reading on the bottom of cornice B=4.124mEnter the readings in a level book page and calculate the R.L of cornice B. Use H.Imethod. [16]

4. Calculate the area between the survey line, the hedge and the end offsets by

(a) Trapezoidal rule and

(b) Simpson’s rule [8+8]From the following field measurements of perpendicular offsets taken from achain line to a hedge:

Chainage (m) Offsets (m) Chainage (m) Offsets (m)0 7.6 70 9.515 8.5 80 8.330 10.7 100 7.945 12.8 120 6.460 10.6 140 4.4

5. (a) Draw a neat sketch of a transit theodolite and explain the functions of itsvarious components.

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Code No: W0123/R07 Set No. 1

(b) In a traverse survey, the angular measurements were made with an error of20”. What is the relative accuracy in the linear measurements? [12+4]

6. To determine the distance between two stations A and B, a tacheometer was setup at a point P on the line AB and the following observations were made:

(a) When the staff was held at AStaff readings = 2.225, 2.605, 2.985Vertical angle = +8024′

(b) When the staff was held at BStaff readings = 1.640, 1.920, 2.200Vertical angle = −1006′

Also determine the R.L. of B if the R.L. of A is 315.673 m (k=100.00 andc=0.00) [16]

7. (a) Describe the method of setting out a simple circular curve by offsets fromchords produced.

(b) Tabulate the necessary data for setting out the first five pegs of a circularcurve with the following data.Angle of intersection of the straights = 1450, chainage of point of intersection= 1580m. Radius of the curve = 400m. The curve is to be set out by methodof deflection angles with pegs at every 30m. Theodolite has a least count of20′′. [7+9]

8. (a) Describe the object and methodology of Geodetic Surveying.

(b) What impact did the creation of electronic angle measurement (like in TotalStations) have on surveying procedures? [8+8]

? ? ? ? ?

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JNTUWORLD

Code No: W0123/R07 Set No. 2

II B.Tech I Semester Supplementary Examinations, April/May 2011SURVEYING

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

? ? ? ? ?

1. (a) Draw a neat sketch of a prismatic compass and explain it in detail.

(b) Explain bearing. What are different systems of designation of bearings. Ex-plain. [8+8]

2. (a) Explain the procedure of chaining. How will you record the measurements ofChain Survey. Enumerate the points to be kept in view while booking thefield notes.

(b) A Survey line BAC crosses a river, A and C being on the near and oppositebanks respectively. A perpendicular AD 40m long is set out at A. If thebearings of AD and DC are 380 451 and 2780 451 respectively and the chainageat A is 862m. find the chainage at C. [8+8]

3. With the help of neat sketches explain the uses of contour maps. [16]

4. (a) Name the three methods of measuring volume. For what purpose each one ofthese is use?

(b) Explain the measurement of volume from cross sections. [6+10]

5. (a) Draw a neat sketch of a transit theodolite and explain the functions of itsvarious components.

(b) In a traverse survey, the angular measurements were made with an error of20”. What is the relative accuracy in the linear measurements? [12+4]

6. (a) What do you understand by tacheometry? What is the utility of an analyticlens in a tacheometer?

(b) The vertical angles to vanes fixed at 1 m and 3 m above the foot of the staffheld vertical at a station A, were +2015’ and +5050’, respectively. Determinethe horizontal distance and reduced level of A if the height of the instrumentaxis is 235.665 m above datum. [6+10]

7. (a) Why are the curves provided. Explain different types of curves with neatsketches.

(b) Two straights intersect at a chainage of 3500.5m with an angle of intersectionof 1560. These two straights are to be connected by a simple circular curve of200m radius. Calculate the data necessary by the method of offsets from thechords produced with a peg interval of 20m. Explain the procedure to set outthe curve. [7+9]

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Code No: W0123/R07 Set No. 2

8. What are the typical total station programs required to perform a variety of sur-veying functions explain them briefly? [16]

? ? ? ? ?

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JNTUWORLD

Code No: W0123/R07 Set No. 3

II B.Tech I Semester Supplementary Examinations, April/May 2011SURVEYING

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

? ? ? ? ?

1. (a) Define Surveying. Explain its importance for civil Engineers.

(b) What is meant by Reconnaissance Survey.

(c) A Chain was tested before starting a survey and was found to be exactly 30m.At the end of the Survey, it was tested again and found to measure 30.10m.The area of the plan of the field drawn to a sale of 1cm = 20m was 160 squarecentimeters. Find the true area of the field in square metres. [5+3+8]

2. (a) Explain compensating and cumulative errors in chain Surveying.

(b) What are the Survey stations. How will you select them.

(c) A Survey line CD intersects a high building. To prolong the line beyond thisobstacle, a perpendicular DE, 200m long is set out at D. From E, two lines EFand EG are set out at angles of 450 and 600 with ED respectively. Determinethe length of EF and EG in order that the points F and G may lie on theprolongation of CD, and also find the obstructed length DF. [4+4+8]

3. (a) What do you understand by interpolation of contours? What is the assumptionon which the methods of interpolation is based ? Name the different methodsof interpolation.

(b) Explain any 3 methods of interpolation. [8+8]

4. The perimeter of a figure is traversed clock wise with the anchor point inside andwith the tracing area so set that one revolution of the roller measured 100 sg.cm.on the paper. The initial and final readings are 2.828 and 9.836 respectively. Thezero mark of the disc passed the fixed index mark twice in te reverse direction. Thearea of the zero circle is found to be 2352 sg.cm. find the area of the figure. [16]

5. (a) Differentiate between

i. Transiting and swinging of the telescope.

ii. Face left and face right readings.

iii. Clamp screw and tangent screw.

iv. Telescope normal and telescope inverted.

(b) In a theodolite traversing, the distances are to be measured to a precision of1 in 15,000. Determine the accuracy measurements. [12+4]

6. Derive the expressions for the horizontal distance D and the vertical intercept Vwhen the staff is

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Code No: W0123/R07 Set No. 3

(a) Vertical

(b) Normal [16]

7. (a) Describe the method of setting out a simple circular curve by offsets fromchords produced.

(b) Tabulate the necessary data for setting out the first five pegs of a circularcurve with the following data.Angle of intersection of the straights = 1450, chainage of point of intersection= 1580m. Radius of the curve = 400m. The curve is to be set out by methodof deflection angles with pegs at every 30m. Theodolite has a least count of20′′. [7+9]

8. (a) Define geographic information system and describe the relationship betweentraditional analog map and Geographic Information System.

(b) Suggest possible users of a GIS and how it might benefit them. [8+8]

? ? ? ? ?

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JNTUWORLD

Code No: W0123/R07 Set No. 4

II B.Tech I Semester Supplementary Examinations, April/May 2011SURVEYING

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

? ? ? ? ?

1. (a) What is local attraction. How is it detected and removed.

(b) What do you understand by closing error of a compass traverse. Show howcan it be adjusted by graphical method. [8+8]

2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset.

(b) Find the maximum length of offset so that the displacement on paper fromboth sources of error does not exceed 0.2 mm given that the offset is measuredwith an accuracy of 1 in 25 and the scale is 1cm = 50m. [8+8]

3. The following observations were made during the testing of a dumpy level:

Instrument at Staff reading onA B

A 1.702 2.244B 2.146 3.044

Distance AB=150m Is the instrument in adjustment? To what reading shouldthe line of collimation be adjusted when the instrument was at B? If the R.L ofA=432.052, what should be the R.L. of B. [16]

4. (a) List the general methods of calculating are as,

(b) Explain any one methods giving its advantages, limitation and suitability fora given type of work. [4+12]

5. What is Gale’s traverse table? Discuss the procedure for recording the variousentries in the table. [16]

6. (a) Derive an expression for the horizontal distance of a vertical staff from atacheometer, if the line of sight is horizontal.

(b) The following readings were taken with a vernier theodolite on to a verticalstaff

Horizontal distance Stadia readings46.20 m 0.780, 1.010, 1.24061.20 m 1.860, 2.165, 2.470

Calculate the Tacheometric constants. [8+8]

7. (a) What are the usual difficulties in ranging simple curves and how are theyobviated.

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Code No: W0123/R07 Set No. 4

(b) Calculate the ordinates from a 150m long chord at 10m interval to set out asimple circular curve of 80 [8+8]

8. Explain about the segments of Global Positioning system? [16]

? ? ? ? ?

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JNTUWORLD

Code No: W0221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ELECTRICAL MACHINES - I

(Electrical and Electronics Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

�� a) State and explain the principle of energy conversion? (8M)

b) Derive the expression for mechanical force developed for singly excited magnetic field

system? (8M)

�� a) Discuss the function of field system along with its constructional details? What is the

function of interpole, where its provided? (8M)

b) A 4 pole wave connected dc generator has 540 armature conductors. If the flux per pole

30 mWb and runs at 1500 rpm, determine emf generated. If the machine is driven as shunt

generator with the same field flux and speed calculate, terminal voltage when it supplies a

load resistance of 40�. Given the armature resistance is equal to 0.5�. Shunt field resistance

is 450�. Also find load current. (8M)

�� a) What is meant by commutation? Briefly explain the commutation process in the dc

machine? (8M)

b) A 4-pole, 400kW, 500V dc generator has 1000 armature conductors wave connected.

When delivering full load, the brushes are given an actual lead of 120. Calculate the

demagnetizing and cross-magnetizing armature ampere turns per pole. The field winding is

shunt connected and takes 10 A. (8M)

�� a) Discuss, how the magnetization characteristic of dc shunt generator can be obtained?

Deduce the expression for critical field resistance and critical speed from the graph? (10M)

b) What are the different causes of the failure of the induced emf in dc generator? Suggest

some remedial measures. (6M)

�� a) Briefly explain how to obtain the load characteristics of dc series generator? (8M)

b) Two separately excited generators connected in parallel discuss in detail how they share

load? (8M)

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Code No: W0221/R07

� a) Derive from the first principle an expression for torque developed in a dc motor? (8M)

b) A 220 V dc motor runs takes 5A on no load and runs at 750 rpm. The resistances of the

armature and shunt field resistances are 0.2 � and 110 � respectively. Calculate the speed

when the motor is load and taking a current of 50A. Assume the armature reaction weakens

the field by 3%. (8M)

� a) Why the starting current of dc motor is very high? Explain how it limited using the starter

(6M)

b) A 220 V dc series motor a regulating resistance of R in series. The motor resistance is

0.3�. When R = 0 and the current drawn by the motor, I is 30 A and the motor runs at 1000

rpm. Find the speed when resistance, R = 5� and current drawn by the motor, I =15 A. Also

find the ratio of total mechanical output in two cases. Given that the flux with I = 15 A is

80 % of that with I = 30A. (10M)

�� The Hopkinson’s test on two identical shunt machines gave the following results. Line

Voltage 220V, line current excluding the field current 50A, motor armature current 380A,

generator and motor field currents are 5A and 4.2A respectively. The armature resistance of

the each machine is 0.025 �. Calculate the efficiency of the each machine at this load

condition. (16M)

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Code No: W0221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ELECTRICAL MACHINES - I

(Electrical and Electronics Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. Develop an expression for the mechanical force developed for a singly excited linear

system? Show that the same expression is obtained with the analysis is based field energy

and co-energy functions? (16M)

2. a) Derive an expression for induced emf in the armature of dc machine? (8M)

b) The armature of a 6-pole lap wound shunt generator has 1200 armature conductors. The

useful flux per pole is 0.05 Wb. The armature resistance is 0.02 � and the shunt field

resistance is 250 �. Find the speed of the machine when the generator supplies a load of 10

� in parallel with 50 lamps of 100W at a terminal voltage of 250 V. (8M)

3. a) What is meant by armature reaction? Deduce the expression for demagnetizing and cross-

magnetizing armature ampere turns (8M)

b) A 5 kW, 400 V, 4-pole dc generator has 1200 lap wound conductors. The brush leads of 5

angular degrees (mech.) from the geometric neutral axis. Calculate the cross and

demagnetizing turns per pole. Neglect the shunt field current. (8M)

4. a) Explain the different types of dc generators with suitable diagrams? (10M)

b) What are the different causes of the failure of the induced emf in dc generator? Suggest

some remedial measures. (6M)

5. a) Briefly explain how to obtain the load characteristics of dc shunt generator? (8M)

b) Discuss the use of equalizing bars and cross connection of the field windings in the

parallel operation (8M)

6. a) Draw the different characteristics of the series motor? Explain the importance of speed-

torque characteristics? (8M)

b) A 220 V dc shunt motor takes no load current of 10 A and runs at 750 rpm. At full load

the armature current is 100 A and the motor runs at 690 rpm. Resistance of the armature is

0.1 calculate the following

i) back emf at no load and full load

ii) percentage of reduction in flux due to armature reaction (8M)

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Code No: W0221/R07

7. A 220 V dc shunt motor with an armature resistance of 0.4 � and a field resistance of 110 �

drives a load, the torque of which is constant. The motor draws from the supply a line

current of 32A when the speed is 450 rpm. If the speed is raised to 700 rpm what change

must be effected in the value of the shunt field circuit resistance? Assume that the

magnetizing characteristic of the motor is straight line. (16M)

8. a)What are the different regenerative testing methods? Why they are called regenerative

testing methods? (6M)

b) Discuss how to conduct Field’s Test to find the efficiency of dc machines? Derive the

expressions for it? (10M)

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JNTUWORLD

Code No: W0221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ELECTRICAL MACHINES - I

(Electrical and Electronics Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Draw and explain the block diagram representation of an electromechanical energy

conversion device? (8M)

b) A doubly excited magnetic field system has the following inductances in terms of angle �

between the stator and rotor coils.

Stator Self inductance Lss= 0.50 H

Rotor self inductance Lrr= 0.30 H

Mutual inductance Msr= 0.40 cos � H

If the current flowing the stator and rotor are 10 A and 8 A respectively Calculate the

mechanical torque developed? (8M)

2. a) Compare simplex lap winding and a simplex wave winding? Draw their diagrams to show

their difference? (8M)

b) The armature of a 6-pole lap wound shunt generator has 1200 armature conductors. The

useful flux per pole is 0.05 Wb. The armature resistance is 0.02 � and the shunt field

resistance is 250 �. Find the speed of the machine when the generator supplies a load of 10

� in parallel with 50 lamps of 100W at a terminal voltage of 250 V. (8M)

3. a) What is meant by commutation? Briefly explain the commutation process in the dc

machine? (8M)

b) A 6 pole, 148A dc shunt generator has 480 conductors and is wave wound. Its field

current is 2A. Find the demagnetizing and cross magnetizing ampere turns per pole at full

load if

i) brushes are shifted from GNA by 50 electrical

ii) brushes are shifted from GNA by 50 mechanical (8M)

4. a) What is meant by self excitation? Explain the different types self excitation methods of dc

generators with suitable diagrams? (6M)

b) Discuss, how the magnetization characteristic of dc shunt generator can be obtained?

Deduce the expression for critical field resistance and critical speed from the graph? (10M)

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Code No: W0221/R07

5. a) Briefly explain load characteristics of different types of compound generators? (8M)

b) Discuss the use of equalizing bars and cross connection of the field windings in the

parallel operation (8M)

6. a) Derive from the first principle an expression for torque developed in a dc motor? (8M)

b) A 220 V dc shunt motor takes no load current of 10 A and runs at 750 rpm. At full load

the armature current is 100 A and the motor runs at 690 rpm. Resistance of the armature is

0.1 � calculate the following

i) back emf at no load and full load

ii) percentage of reduction in flux due to armature reaction (8M)

7. A 220 V dc shunt motor with an armature resistance of 0.4 � and a field resistance of 110 �

drives a load, the torque of which is constant. The motor draws from the supply a line

current of 32A when the speed is 450 rpm. If the speed is raised to 700 rpm what change

must be effected in the value of the shunt field circuit resistance? Assume that the

magnetizing characteristic of the motor is straight line. (16M)

8. a) Discuss how to conduct swinburne’s test on dc shunt machine? Deduce the expression for

the efficiency of the shunt machines? (8M)

b) In a direct loading test on a shunt motor the speed of the motor is equal to 1350 rpm the

load on one side of the brake band was 18.9 N and on the other 1.67 N. The diameter of the

brake pulley was 13.2 cm. If the input current was 10 A at 220 V, calculate the torque,

efficiency and the brake horse power. (8M)

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Code No: W0221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ELECTRICAL MACHINES - I

(Electrical and Electronics Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Draw and explain the block diagram representation of an electromechanical energy

conversion device? (8M)

b) Develop an expression for the mechanical force developed for a singly excited linear

system? (8M)

2. a) Enumerate the various parts of dc machine that constitute its magnetic circuit with neat

diagrams? (8M)

b) A 4 pole lap connected dc generator has 540 armature conductors. If the flux per pole 30

mWb and runs at 1500 rpm, determine emf generated. If the machine is driven as shunt

generator with the same field flux and speed calculate, terminal voltage when it supplies a

load resistance of 40�. Given the armature resistance as 2� and shunt field resistance as

450�. Also find load current. (8M)

3. a) Briefly explain different methods of improving commutation? (8M)

b) A 6 pole, 148A dc shunt generator has 480 conductors and is lap wound. Its field current

is 2A. Find the demagnetizing and cross magnetizing ampere turns per pole at full load if

i) brushes are shifted from GNA by 50 electrical

ii) brushes are shifted from GNA by 50 mechanical (8M)

4. a) What are the different causes of the failure of the induced emf in dc generator? Suggest

some remedial measures. (6M)

b) Explain how to determine the critical field resistance and critical speed of the dc

generator? (10M)

5. a) Briefly explain load characteristics of different types of compound generators? (8M)

b) Two shunt generators connected in parallel discuss in detail how they share load? (8M)

6. a) Draw the different characteristics of the compound motors? Based on this list different

applications of them? (8M)

b) A 4-pole dc series motor has 944 lap connected armature conductors. At a certain load the

flux per pole is 30 mWb and the total mechanical power developed is 3 kW. Calculate the

line current taken by the motor and the speed at which it will run with an applied voltage of

220 V. The total motor resistance is 1 �. (8M)

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Code No: W0221/R07

7. a) Draw the diagram of a three point starter explain functions of various components in it?

(8M)

b) A 220V, 30A, 900 rpm dc shunt motor has armature circuit resistance of 0.2 �. If load

torque is reduced to 60% of its full-load value and a resistance of 2 � is inserted in series

with armature circuit, Find the motor speed. Armature reaction weakens the field flux by 4%

at full load ? (8M)

8. The Hopkinson’s test on two identical shunt machines gave the following results. Line

Voltage 220V, line current excluding the field current 50A, motor armature current 380A,

generator and motor field currents are 5A and 4.2A respectively. The armature resistance of

the each machine is 0.025 �. Calculate the efficiency of the each machine at this load

condition. (16M)

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Code No: X0324/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

THERMODYNAMICS

(Com. to ME, AE, AME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What do you understand by state function and path function?

b) If a gas of volume 6000 cm3

and at a pressure of 100 kPa, is compressed quasistatically to

pV2=constant until the volume becomes 2000 cm

3. Calculate the final pressure and the work

transfer. (6M+10M)

2. a) Show that energy is a property of the system

b) A closed system undergoes a reversible process at a constant pressure process of 3.5 bar

and its volume changes from 0.15m3 to 0.06 m

3. 25KJ of heat is rejected by the system

during the process. Determine the change in internal energy of the system. (8M+8M)

3. a) State and prove Carnot theorems.

b) A reversible reversed heat engine operates between -130

C and 370C. Calculate its COP as

a refrigerator and as a heat pump. (8M+8M)

4. a) Why cannot a throttling calorimeter measure the quality if the steam is very wet?

b) Find the enthalpy, entropy and volume of steam at 1.4 Mpa, 3800 C. Using steam tables

only. (6M+10M)

5. A gas in a cylinder fitted with a piston undergoes a cycle composed of three processes. First,

the gas expands at constant pressure with a heat addition of 42.0 kJ and a work output of

12.0 kJ. Then it is cooled at constant volume by a removal of 48 kJ of heat. Finally, an

adiabatic process restores the gas to its initial state. Determine

a) The work of the adiabatic process and

b) The stored energy of the gas at each of the other two states if its stored energy in the

initial state is assigned the value of zero. (16M)

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Code No: X0324/R07

6. A gaseous mixture contains 23 % by volume of Nitrogen, 45% by volume of Hydrogen, and

32% by volume of Carbon-dioxide. Calculate the Molecular weight of the mixture, the

characteristic gas constant R for the mixture and the value of the reversible adiabatic index

�. (At 10oC, the cp values of Nitrogen, Hydrogen, and Carbon dioxide are 1.04, 13.95, and

0.85 kJ/kg K respectively.) A cylinder contains 0.095 m3 of the mixture at 1.1 bar and 10

oC.

The gas undergoes a reversible non-flow process during which its volume is reduced to one-

fifth of its original value. If the law of compression is Pv1.25

= constant, determine the work

and heat transfers in magnitude and direction and the change in entropy. (16M)

7. a) Describe Otto gas power cycle with the help of P-V and T-S diagram. Derive an

expression for its all standard efficiency

b) The compression ratio in an air standard Otto cycle is 7. At the beginning of compression

process the pressure is 98 KN/m2 and temperature is 300

0 K. The heat added to air per cycle

is 1850 KJ/kg of air. Calculate i) Thermal efficiency ii) The MEP of the cycle

(8M+8M)

8. A R-12 vapour compression refrigeration system is operating at a condenser pressure of 10

bar and an evaporator pressure of 2.2 bar. Its refrigeration capacity is 14 tones. The values of

enthalpy at the inlet and outlet of the evaporator are 650 and 200 kJ/kg. The specific volume

at inlet to the reciprocating compressor is 0.085 m3/kg. The index of compression for the

compressor is 1.15.

Determine:

a) the power input in kW required for the compressor and

b) the COP. Take one tone of refrigeration as equivalent to heat removal at the rate of 3.517

kW. (16M)

SET - 1

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Code No: X0324/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

THERMODYNAMICS

(Com. to ME, AE, AME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. A gas expands according to the equation PV=100, where P is the pressure in KPa and V is

the specific volume in m3/kg. The initial pressure of the gas is 1000 KPa and the final

pressure is 500KPa. The gas is then heated at constant volume back to its original pressure

of 1000KPa. Determine the work of combined process. Also sketch the process on P-V

coordinates. (16M)

2. a) Define the First law of Thermodynamics and discuss why it is known as Law of

Conservation of energy

b) A nozzle receives 1200 kg/h of steam at 1.3 MN/m2, specific volume 142 lit/kg, internal

energy 4400 KJ/kg and negligible speed. At the exit, the pressure is 100KN/m2, specific

volume 1660 lit/kg and internal energy 2200 KJ/kg. Calculate the exit velocity of the steam.

(8M+8M)

3. a) What are the limitations of first law of thermodynamics?

b) What is a thermal energy reservoir?

c) An engine operating on a Carnot cycle works within temperature limits of 600 k and 300

k. If the engine receives 2000 kJ of heat evaluate the work done and thermal efficiency of

the engine. (6M+2M+8M)

4. a) Determine entropy of 5 kg of steam at 2 MPa and 3000C ,Take specific heat of super

heated steam as 2.1 KJ/Kg.K

b) Throttling colorimeter has steam entering to it at 10 Mpa and coming out of it at 0.05

MPa and1000 C. Determine dryness fraction of steam. (8M+8M)

5. a) Write down the van der Waals equation of state. How does it differ from the ideal gas

equation of state?

b) A gas occupies 0.034 m3 at 600 kPa and 85

oC. It is expanded in the non-flow process

according to the law pV1.2

= constant to a pressure of 60 kPa after which it is heated at

constant pressure back to its original temperature. Sketch the process on the p-v and T-s

diagrams, and calculate for the whole process the work done, the heat transferred.

Take Cp = 1.047 and Cv = 0.775 kJ/kg K for the gas. (6M+10M)

SET - 2

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6. A mixture of ideal gases consists of 3 kg of Nitrogen and 5 kg of carbon dioxide at a

pressure of 4 bar and temperature of 250 C .Find

a) mole fraction of each constituent, b) equivalent molecular weight of the mixture

c) Equivalent gas constant of the mixture, d) Partial pressure and partial volumes

e) volume and density of the mixture and f) Cp & Cv of the mixture. (16M)

7. a) Compare the Otto cycle and Diesel cycle for the same compression ratios and same heat

inputs.

b) A diesel engine has a compression ratio of 15 and heat addition at constant pressure takes

place at 6% of the stroke. Find the air standard efficiency of the engine. (�= 1.4.) .

(8M+8M)

8. a) Explain with neat sketch the working of vapour compression refrigeration cycle

b) Describe a binary vapour cycle with the help of schematic diagram of the plant and T-S

diagram of the cycle. (8M+8M)

SET - 2

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Code No: X0324/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

THERMODYNAMICS

(Com. to ME, AE, AME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is a thermodynamic system? What is the difference between a closed system and an

open system? Give few examples for closed and open systems.

b) Prove that heat and work are path functions. (8M+8M)

2. a) What is the Zeroth law of Thermodynamics? Explain how it is applied for the

measurement of temperature.

b) Define the thermometric property? Explain the working of constant volume gas

thermometer. (8M+8M)

3. a) State Kelvin-Plank statements and Clausius statement

b) Air at 150 C and 1.05 bar occupies a volume of 0.02 m

3. The air is heated at constant

volume until the pressure is 4.2 bar and then cooled at constant pressure back to the original

temperature . calculate i) The net heat flow to or from the air and ii) The net entropy change,

sketch the process on T-S diagram (8M+8M)

4. a) Define sensible heat and dry steam.

b) A spherical shell of diameter 50 cm contains steam at a pressure of 40 bar and 0.85

dryness fraction. Calculate the mass of water and steam. (6M+10M)

5. a) Write down the vander Waals equation of state. How does it differ from the ideal gas

equation of state?

b) A gas occupies 0.034 m3 at 600 kPa and 85

oC. It is expanded in the non-flow process

according to the law pV1.2

= constant to a pressure of 60 kPa after which it is heated at

constant pressure back to its original temperature. Sketch the process on the p-v and T-s

diagrams, and calculate for the whole process the work done, the heat transferred.

Take Cp = 1.047 and Cv = 0.775 kJ/kg K for the gas. (6M+10M)

SET - 3

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Code No: X0324/R07

6. A mixture of ideal gases consists of 3 kg of Nitrogen and 5 kg of carbon dioxide at a

pressure of 4 bar and temperature of 250 C .Find

a) mole fraction of each constituent, b) equivalent molecular weight of the mixture

c) Equivalent gas constant of the mixture, d) Partial pressure and partial volumes

e) volume and density of the mixture and f) Cp & Cv of the mixture. (16M)

7. a) Compare the Otto cycle and Diesel cycle for the same compression ratios and same heat

inputs.

b) A diesel engine has a compression ratio of 15 and heat addition at constant pressure takes

place at 6% of the stroke. Find the air standard efficiency of the engine. (�= 1.4.) .

(8M+8M)

8. a) Explain with neat sketch the working of vapour compression refrigeration cycle

b) Describe a binary vapour cycle with the help of schematic diagram of the plant and T-S

diagram of the cycle.

(8M+8M)

SET - 3

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Code No: X0324/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

THERMODYNAMICS

(Com. to ME, AE, AME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Define the term property. State the differences between extensive, intensive and specific

properties of a thermodynamic system. Give few examples for each.

(b) A mass of 2.5 kg of air is compressed in a quasi static process from 0.1 MPa to 0.7 MPa

for which PV = constant. The initial specific volume is 0.80 m3/kg. Find the work done by

the piston to compress the air. (8M+8M)

2. a) Derive the expression for steady flow energy equation.

b) A blower handles 1 kg/sec of air at 20 0C and consumes a power of 15 kw. The inlet and

outlet velocities of air are 100 m/s and 150 m/s respectively. Find the exit air temperature,

assuming adiabatic conditions. (8M+8M)

3. a) State Clausius inequality

b) Two reversible heat engines operate on Carnot cycle. They work in series between a

maximum and minimum temperature of 5500 C and 20

0 C. If the engines have equal thermal

efficiencies and the first rejects 450 KJ to the second, calculate

i) The temperature at which heat is supplied to the second engine

ii) The work done by each engine (8M+8M)

4. a) Why do the isobars on mollier diagram diverge from one another?

b) Find the enthalpy and entropy of steam when the pressure is 2 Mpa and the specific

volume is 0.09 m3/kg. Use the steam table only. (6M+10M)

5. a) Write down the vander Waals equation of state. How does it differ from the ideal gas

equation of state?

b) A gas occupies 0.034 m3 at 600 kPa and 85

oC. It is expanded in the non-flow process

according to the law pV1.2

= constant to a pressure of 60 kPa after which it is heated at

constant pressure back to its original temperature. Sketch the process on the p-v and T-s

diagrams, and calculate for the whole process the work done, the heat transferred. Take Cp =

1.047 and Cv = 0.775 kJ/kg K for the gas. (6M+10M)

SET - 4

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Code No: X0324/R07

6. A mixture of ideal gases consists of 3 kg of Nitrogen and 5 kg of carbon dioxide at a

pressure of 4 bar and temperature of 250 C .Find

a) mole fraction of each constituent, b) equivalent molecular weight of the mixture

c) Equivalent gas constant of the mixture, d) Partial pressure and partial volumes

e) volume and density of the mixture and f) Cp & Cv of the mixture. (16M)

7. a) Compare the Otto cycle and Diesel cycle for the same compression ratios and same heat

inputs.

b) A diesel engine has a compression ratio of 15 and heat addition at constant pressure takes

place at 6% of the stroke. Find the air standard efficiency of the engine. (�= 1.4.) .

(8M+8M)

8. a) Explain with neat sketch the working of vapour compression refrigeration cycle

b) Describe a binary vapour cycle with the help of schematic diagram of the plant and T-S

diagram of the cycle. (8M+8M)

SET - 4

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Code No: X0423/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

SIGNALS AND SYSTEMS

(Com. to ECE, EIE, BME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Verify the following signals sin n�0t and cos m�0t are orthogonal or not

over the interval (t0 , t0 + 2�/�0) (6M)

b) Approximate the function described below by a wave form sint over the interval )2,0( π

�The function is

f(t) = 1, π<< t0

= -1, ππ 2<< t

Also sketch the original function and approximated function (10M)

2. Discuss the concept of exponential Fourier series and derive the expressions for coefficients.

Also discuss the concept of line spectrum

3. a) Find the Fourier transform of symmetrical triangular pulse and sketch the Spectrum

(8M)

b) State and prove following properties of Fourier transform

i) Frequency shifting

ii) Convolution in time domain (8M)

4. a) Define transfer function (2M)

b) Justify why ideal LPF cannot be realized. (10M)

c ) Find signal band width of

i) cos 200� tπ + cos 2000� tπ and ii) u(t) (4M)

5. a) State and prove frequency Convolution property of Fourier transform (5M)

b) Find the correlation of symmetrical gate pulse with amplitude and time duration ‘1’ with

itself. (7M)

c ) Evaluate u(t) * e-t

u(t) (4M)

6. a) State and prove sampling theorem for band limited signals (12M)

b) Determine the minimum sampling rate and Nyquist interval of

Sin(100t) + Sin(1000t) (4M)

1 of 2

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7. a) Find Laplace transforms and sketch their ROC of

i) x(t) = u(t – 2)

ii) x(t) = ej�t

u(t) (8M)

b) Find the inverse Laplace transform of

X(s) = ( -5s – 7)/[(s + 1) (s - 1) (s + 2)] (8M)

8. a) Find z – transform, ROC and pole – zero locations of

x(n) = an u(-n-1) (6M)

b) State and prove differentiation in z – domain property (4M)

c ) Find the inverse z – transform of

i) X(z) = [1/(1-0.5z-1

)] + [2/(1-2z-1

)]

ii) Assuming signal is causal (6M)

2 of 2�

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Code No: X0423/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

SIGNALS AND SYSTEMS

(Com. to ECE, EIE, BME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Define and Sketch the

i) Impulse train

ii) Two sided exponential function

iii) Ramp function

iv) Signum function (4M)

b) Approximate the function described below by a wave form sin rt, where ‘r’ value is

‘4’over the interval )2,0( π The function is

f(t) = 1, 0 < t < �� = -1, � � < t < 2 ��

Also sketch the original function and approximated function (12M)

2. a) Derive the relations between exponential and trigonometric Fourier series coefficients

(10M)

b) Explain about Dirichlet’s conditions (6M)

3. a) Find the Fourier transform of

i) u(t)

ii) sgn(t) (10M)

b) State and prove symmetry property of Fourier transform (6M)

4. a) Discuss the conditions required for distortion less transmission (8M)

b) Define and compare system bandwidth and signal bandwidth with help of examples

(8M)

5. a) State and prove properties of Auto – Correlation (8M)

b) Prove the following

i) �(t) * �(t – t1) = �(t – t1)

ii) f(t – t1) * �(t) = f(t – t1)

iii) �(t – t1) * �(t – t2) = �(t – t1 – t2 ) (8M)

6. a) State and prove sampling theorem for band limited signals using

graphical approach (12M)

b) Give introduction to band pass sampling. (4M)

1 of 2

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7. a) Find the Laplace transform of

x(t) = e-(t – 2)

(t – 2) u(t – 2) (6M)

b) Find the initial and final values of signal x(t) whose Laplace transform is

X(s) = (7s +10) / [s(s + 2)] (6M)

c ) Find inverse of following Laplace transform

X(s) = (1/(s + 1)) - (2/(s - 1))

If ROC is -1 < Re(s) (4M)

8. a) Find z – transform, ROC and pole – zero locations of

x(n) = an u(n) (6M)

b) State and prove z –transform time reversal property (4M)

c ) Find the inverse z – transform of

X(z) = (1/(1 + 2z)) + (2z/(z – 0.25)) (6M)

2 of 2

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Code No: X0423/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

SIGNALS AND SYSTEMS

(Com. to ECE, EIE, BME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Verify the following signals cos n�0t and sin m�0t are orthogonal or not

over the interval (t0 , t0 + 2π �/�0) (6M)

b) Explain why mean error is not preferred in signal approximations (5M)

c ) Discuss the concept of Impulse function (5M)

2. a) Expand following function f(t) by exponential Fourier series over the

interval (0,1). In this interval f(t) is expressed as f(t) = At (10M)

b) Prove that discrete magnitude spectrum is symmetrical about vertical

axis whereas phase spectrum anti-symmetrical about vertical axis (6M)

3. a) Find Fourier transform of Sin �0t (8M)

b) State and prove following properties of Fourier transform

i)Time shifting

ii) Symmetry (8M)

4. a) Derive the relationship between rise time and bandwidth (10M)

b) Sketch the frequency response of ideal LPF, HPF, BPF and BRF. (6M)

5. a) Derive the expression for power in frequency domain (8M)

b) Find the Convolution of following signals

i)f1(t) = 1 0 � t � 2

= 0 other wise

ii)f2(t) = t 1 � t � 5

= 0 other wise (8M)

6. a) Sketch the spectrum of naturally sampled signal for following cases

i) �0 = 2 �m

ii) �0 > 2 �m

iii) �0 < 2 �m

Where ‘�0’ is frequency corresponding to sampling interval and ‘�m’ is maximum

frequency in the spectrum of base band signal. Explain the each sketch (8M)

b) Explain, how signal can be reconstructed from its samples. (8M)

1 of 2

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7. a) Describe the ROC of the signal

x(t) = e-a�t�

for a > 0 and a � 0 (8M)

b) Find the inverse Laplace transform of

X(s) = (-5s – 7)/[(s + 1) (s - 1) (s + 2)]

When ROC is 1 < Re(s) < 2 (8M)

8. a) Determine z – transform, pole – zero locations and sketch of ROC of

following signal

x(n) = -u(-n – 1) + (1/3)n u(n) (8M)

b) Find the inverse z – transform of

X(z) = (2 + z-1

) / (1 – 0.25z-1

) with ROC �z�>1/ 4

using power series expansion (8M)

2 of 2�

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Code No: X0423/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

SIGNALS AND SYSTEMS

(Com. to ECE, EIE, BME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Derive the expression for mean square error when function is approximated in set of

mutually orthogonal functions (12M)

b) Explain how signum function is expressed in terms of unit step function (4M)

2. a) Consider full rectified sine wave with peak amplitude ‘1’ and time period is

‘1’, expand this function in terms of exponential Fourier series. Also sketch the spectrum

(12M)

b) Express the trigonometric Fourier series coefficient ‘an’ in terms of

exponential Fourier series coefficient ‘Fn’ (4M)

3. a) Find the Fourier transform periodic impulse train (8M)

b) Find Fourier transform of cos �0t (8M)

4. a) Explain the Poly-wiener criterion for physical realization of systems. (8M)

b) Compare signal bandwidth and system bandwidth. (4M)

c ) Find band width of sin 100π �t + cos 2000�π t (4M)

5. a) Derive the expression for energy in frequency domain (8M)

b) Find the Auto – Correlation of f(t) = sin �0t and sketch (8M)

6. a) Distinguish natural and flat top samplings (6M)

b) Explain the effect of under sampling (6M)

c ) Determine the minimum sampling rate and Nyquist interval of

cos(100t) + cos(1000t) (4M)

7. a) For the signal given below and check the possibility of finding Laplace transform by

sketching ROC x(t) = e-t u(t) + e

2t u(-t) (8M)

b) Find the inverse Laplace transform of

X(s) = 4s2

+ 15s + 8/[(s + 2)2 (s – 1)] Assuming signal is causal. (8M)

8. a) Determine z – transform, pole – zero locations and sketch of ROC of

following signal x(n) = (1/5)n u(n) + (-1/2)

n u(n) (8M)

b) Find the inverse z – transform of

X(z) = [1 – z-1

+ z-2

] / [(1 – 0.5z-1

)(1 – 2z-1

)(1- z-1

)]

With ROC of 0.5<�z�< 1 (8M)

1 of 1�

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Code No: X0523/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES

(Com. to CSE, ECC)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Discuss in detail about how a member function and data members are defined.

b) What is meant by dynamic initialization of objects? Why do we need to do this? How is

dynamic initialization of objects achieved? (8M+8M)

2. a) When do we make a virtual function “pure”? What are the implications of making a

function pure virtual function?

b) Write a C++ program to illustrate the static binding of the member function of the class

using array pointer. (8M+8M)

3. a) Define time complexity and space complexity. Derive time and space complexity for

binary search technique.

b) Define queue. Write the ADT implementation of queues using templates in C++.

(8M+8M)

4. a) Explain ideal hashing with an example. What is uniform hash function and how is it

different from a good hash function.

b) What is the drawback of separate chaining and how this drawback can be overcome by

using open-addressing method of hashing? Define load factor and what values for the

separate chaining and open addressing hashing methods. (8M+8M)

5. a) Discuss in detail about multi way merge and how it can be performed.

b) Describe how priority queues are implemented using heaps. (8M+8M)

6. a) What is an AVL tree? Write the algorithm to search an element of an AVL search tree

and explain its time complexity.

b) Write an algorithm to retrieve the elements of a Binary search tree in the sorted order.

(8M+8M)

7. a) Start with a splay tree that is a 10 node full binary tree the keys are 1..10. Remove the

keys in the order 10,9,8..1. Draw the tree immediately following each deletion.

b) Define B-tree of order m .How do you perform searching operation in a B-tree.

(8M+8M)

8. a) Write an algorithm for deleting a string from a compressed tries and also analyze its

complexity.

b) Describe the characteristics of Boyer-Moore algorithm. (8M+8M)

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Code No: X0523/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES

(Com. to CSE, ECC)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Explain in detail different parameter passing mechanisms and illustrate each with

example.

b) Discuss in detail about access control mechanisms in C++. (8M+8M)

2. a) What is the difference between ‘overloading’ and “overriding”? Also with examples

discuss about function overloading and operator overloading.

b) Write a C++ program to illustrate base and derived classes. (8M+8M)

3. a) Discuss in detail about friend functions in C++.

b) Describe different types of constructors used in C++.Give examples for each.

(8M+8M)

4. a) Explain about skip list representation of dictionary with an example.

b) Write the method in C++ to erase a pair in the dictionary with the key in a skip list

representation. What is the complexity of this method? (8M+8M)

5. a) What is priority queue? How do you perform insertion and deletion operations in a

priority queue?

b) Show the result of inserting 10,12,1,12,6,5,8,15,3 and 9 one at a time into an initially

empty min heap. (8M+8M)

6. a) Explain algorithm for right to right and left to left rotation in AVL trees.

b) What is a binary search tree? How do you delete the root node from a binary search tree.

Explain with an example. (8M+8M)

7. a) Will the root of a red black tree always be a black after performing a deletion operation?

Justify with an example.

b) Derive the formulae to find the height of a B-tree. (8M+8M)

8. Give the fail indexes used by the KMP algorithm for the following patterns.

i) AAAB

ii) AABAACAABABA (8M+8M)

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Code No: X0523/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES

(Com. to CSE, ECC)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is a friend function? Explain the advantages and disadvantages of it? Give example.

b) Describe in detail about dynamic memory allocation and deallocation with examples.

(8M+8M)

2. a) What do you mean by run time polymorphism and how to implement run time

polymorphism using virtual functions in C++?

b) What is template? Explain about function templates and class templates with suitable

examples. (8M+8M)

3. a) Define the Abstract data type for Stack. Write a C ++ program to implement stack ADT

using linked list.

b) Discuss in detail about time complexity and space complexity. (8M+8M)

4. Use linear probing, a hash table with b=17 buckets and hash function f(k) =k%b, Start with

empty hash table and insert pairs whose keys are 7,42,25,70,14,38,8,21,34,11.

The pairs are inserted in this order.

i) Draw the hash table for each insertion.

ii) What is the loading factor after last insertion?

iii) What is the maximum number of buckets examined in an unsuccessful search of your

table?

iv) What is the maximum number of buckets examined in a successful search? (16M)

5. a) If a d-heap is stored on an array, for an entry located in position k, where are the parents

and children.

b) Discuss in detail about external sorting? How do you perform external sorting on tapes

using multi way merge. (8M+8M)

6. a) Draw the sequence of rotations required to perform a single rotation and a double LR

rotation in an AVL tree.

b) What is a Binary search tree? Define a C++ abstract class that corresponds to this

ADT.Write a method to search for an element of a Binary Search Tree? What is its time

complexity? (8M+8M)

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7. a) Prove that let T be a B-tree of order m and height j . Let d =[m/2�and let n be the number

of elements in T.

i) 2dh-1

-1�n�mh-1

ii) logm (n+1) �h�logd{(n+1)/2} +1

b) Demonstrate with example about insertion and deletion of elements on B-trees.

(8M+8M)

8. a) Explain the boyer Moore algorithm with an example.

b) Discuss about the performance of brute force pattern matching algorithm. (8M+8M)

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JNTUWORLD

Code No: X0523/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES

(Com. to CSE, ECC)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Write a program to illustrate the exception handling mechanism in C++.

b) Can a copy constructor accept an object of the same class as parameter, instead of

reference of the object? (8M+8M)

2. a) What are Virtual Functions? How to implement virtual functions in “C++”

b) What is inheritance ? Discuss different types of inheritance by illustrating with examples.

(8M+8M)

3. a) What is template? Explain about function templates and class templates with suitable

examples.

b) Explain in detail about formatted I/O and console I/0. (8M+8M)

4. a) What is quadratic probing? Explain how a new element can be inserted in a table when

the table size is prime and is half empty.

b) Explain how rehashing can be performed on a hash table. What are the advantages of

rehashing? (8M+8M)

5. a) Discuss in detail about model for external sorting.

b) Briefly explain about realizing priority queues using heaps. (8M+8M)

6. a) What is an AVL search tree? How do we define the height of it? Explain about the

balance factor associated with a node of an AVL tree.

b) Discuss in detail about the operations of searching ,insertion and deletion of Binary

search trees. (8M+8M)

7. a) What is the maximum number of disk accesses needed to delete an element that is in a no

leaf node of a B-tree of order m?

b) Write insertion algorithm of red black tree. Also analyze its time complexity.

(8M+8M)

8. a) Explain the boyer Moore algorithm with an example.

b) What are the advantages and disadvantages of tries with respect to binary search tree.

(8M+8M)

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JNTUWORLD

Code No: W0822/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ANALYTICAL CHEMISTRY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Differentiate Post and Co-precipitation with examples (10M)

b) What are the optimum conditions for precipitation (6M)

2. a) Explain various types acid-base titrations with suitable examples (8M)

b) Write a note on complexometric titrations (8M)

3. a) Define lamberts-Beers law and derive combined form of it with significance of

molar extinction coefficient (8M)

b) Explain the estimation of Manganese in any alloy samples by UV-Visible

spectrophotometer (8M)

4. a) How many fundamental vibrational frequencies would you expect to observe

the IR absorption spectrum of CO2 (8M)

b) Explain the important applications of IR in organic compounds (8M)

5. a) Write the principle of planar chromatography and explain the applications

of TLC in quantitative analysis (10M)

b) Discuss briefly Rf and Rx values in chromatography (6M)

6. Explain the instrumentation of Gas chromatography with neat diagram

and give some important applications of GC (16M)

7. Discuss principle, instrumentation and important applications of HPLC and explain

the each term involve in it (16M)

8. a) Define hardness of water and write its units (6M)

b) Explain the estimation of hardness of water by EDTA method (10M)

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JNTUWORLD

Code No: W0822/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ANALYTICAL CHEMISTRY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Write the differences between qualitative and quantitative analysis of samples. (6M)

b) Explain the gravimetric determination of Copper with suitable reagent and write

suitable masking agents when copper is associated with other metals (10M)

2. a) Write a note on redox titrations with suitable examples (8M)

b) Discuss the complexometric titrations with examples (8M)

3. a) Derive combined form of Lamberts – Beers law (8M)

b) Explain the deviations of Beers law at higher concentration with suitable examples (8M)

4. a) How many functional vibrations would you expect to observe in the IR spectrum of

H2O (6M)

b) Discuss the important applications of IR Spectroscopy in organic and inorganic

compounds (10M)

5. a) What is chromatography and give general idea of different types of

chromatography (8M)

b) Explain Rf and Rx values in chromatography (8M)

6. a) Explain principle and instrumentation of GC (8M)

b) Write important qualitative application of GC (8M)

7. Write principle and instrumentation of HPCL with neat diagram (16M)

8. a) What is meant by hardness of water and explain the estimation of hardness by

EDTA method (8M)

b) How do you estimate the alkalinity in water sample (8M)

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JNTUWORLD

Code No: W0822/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ANALYTICAL CHEMISTRY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Explain co-precipitation and post precipitation and what are the optimum conditions

for precipitation (10M)

b) Write a note on gravimetric determination of Ni-DMG

complex (6M)

2. a) Write the composition and analysis of Brass and Solder (10M)

b) What are complexometric titrations and give two examples (6M)

3. Explain the instrumentation of UV-Visible spectrophotometer and discuss the

Estimation of chromium and manganese in alloy samples (16M)

4. Draw neat block diagram of IR spectrophotometer and explain instrumentation and

applications of it. (16M)

5. a) What are the differences between packed column chromatography and capillary

column chromatography . (8M)

b) Write a note on Rf and Rx values in chromatography (8M)

6. a) Write the principle and instrumentation of GC and what are the applications (10M)

b) write a note on FID and ECD (6M)

7. a) What are the basic principle of HPLC and explain the instrumentation of HPLC (8M)

b) Discuss the qualitative applications of HPCL (8M)

8. a) Explain BOD and COD (8M)

b) How do you estimate dissolved oxygen of water sample (8M)

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JNTUWORLD

Code No: W0822/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ANALYTICAL CHEMISTRY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Explain the gravimetric determination Nickel and Copper and what are the (8M)

optimum conditions required for precipitation

b) Write a note on Co-Precipitation and Post precipitation (8M)

2. a) What are redox reactions and discuss the oxidation and reduction

titrations with suitable examples. (10M)

b) Write a short note on complexometric titrations (6M)

3. a) Define lamberts-Beers law and deduce the equation for combined

form and what are the deviations of it (8M)

b) Explain the estimation of manganesein alloy samples (8M)

4. a) Discuss the types of stretching and bending vibrations in a poly

atomic molecules (10M)

b) Write a note on sampling techniques in IR Spectroscopy (6M)

5. a) Explain the preparation of thin layers in plates (8M)

b) Discuss the applications of TLC in organic compounds (8M)

6. a) Explain the importance of carrier gas in GC and explain the instrumentation (8M)

b) Describe important applications of GC (8M)

7. Write the principle instrumentation and important applications of HPLC with neat

diagram (16M)

8. a) Explain the estimation of chlorides present in water samples (6M)

b) Write a note on BOD & COD (10M)

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JNTUWORLD

Code No: X1221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES AND ALGOTITHMS

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is scope? Briefly describe access control supported by C++.

b) What is this pointer? With an example describe the usage of this pointer.

2. a) What is base class access control? Briefly describe C++ functions template.

b) What is Operator overloading? With an example describe the usage of operator

overloading.

3. a) What is performance analysis? With an example, describe time complexity and space

complexity.

b) What is Stack ADT? Implement Stack ADT using C++ template.

4. What is skip list? In what way it is different from Linear list? With neat diagrams,

describe the search, insertion and deletion operations on skip lists.

5. What is a priority queue? Briefly describe the types of priority queues? With an example,

briefly describe priority queue implementation using heap.

6. What is binary search tree? With examples and diagrams, describe in detail about search,

insertion and deletion algorithms of BST.

7. What is merge sort? In what way it is different from quick sort? With an example, briefly

describe merge sort technique. What is it worst case time complexity?

8. What is minimum cost spanning tree? With an example, describe in detail about OBST

algorithm.

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JNTUWORLD

Code No: X1221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES AND ALGOTITHMS

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is exception? With an example, describe the process to handle file not found

exception.

b) With an example, briefly describe the parameter passing methods supported by C++.

2. a) What is a run time polymorphism? Briefly describe the usage of runtime

polymorphism using virtual functions.

b) With examples, briefly describe inheritance types supported C++.

3. a) With suitable example, describe the queue with primitive operations and describe

underflow and overflow conditions.

b) What is Abstract Data Type? Briefly describe Stack ADT.

4. What is skip list? In what way it is different from Linear list? With neat diagrams,

describe the search, insertion and deletion operations on skip lists.

5. What is a heap? With suitable examples, discuss in detail about the implementation of

priority queues using heaps.

6. What is an AVL tree? Briefly describe the insertion and deletions algorithms of AVL

tree.

7. a) What are Biconnected components? With an example, briefly describe find and unioin

algorithms.

b) Briefly describe any one non-recursive tree traversal technique.

8. With an example, describe in detail about ordering matrix multiplications. What is its

time complexity?

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JNTUWORLD

Code No: X1221/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES AND ALGOTITHMS

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is Object and what are Class Members? Briefly describe constructors and

destructors.

b) What are inline functions? With an example describe the usage of inline functions.

2. What is a function template? In what way it is different from class template? With

suitable examples, describe the usage of function templates and class templates.

3. a) What is Abstract Data Type? Briefly describe List ADT.

b) Briefly describe O, Omega and theta notations.

4. a) What is Hash table? Briefly describe hash functions.

b) What is collision? Briefly describe collision resolution techniques.

5. a) What is quadratic probing? Briefly describe search and insertion operations on a table

using quadratic probing.

b) What is extendible hashing? Briefly describe insertion algorithm for extendible

hashing.

6. What is external sorting? With an example and algorithm describe in detail about

polyphase merge.

7. What is an AVL tree? With neat diagrams, describe in detail about the operations

supported by AVL tree.

8. a) Solve the following 0/1 Knapsack Problem using dynamic programming n=4, m=30,

(w1,w2,w3,w4) = (10,15,6,9) and (p1, p2, p3, p4) = (2,5,8,1).

b) Differentiate between Greedy method and Dynamic Programming

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JNTUWORLD

Code No: X1221

II B.Tech I Semester Supplementary Examinations, May- 2011

ADVANCED DATA STRUCTURES AND ALGOTITHMS

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is static member? With an example describe the usage of static members.

b) What are friend functions? With an example describe the usage of friend functions.

2. a) What is an abstract class? Differentiate base class and derived class.

b) What is a stream? With an example, describe the usage of Stream I/O.

3. a) Briefly describe sparse matrix representation.

b) What is Abstract Data Type? Briefly describe Queue ADT.

4. a) What are dictionaries? Briefly describe rehashing.

b) Briefly compare hashing and skip list.

5. What is a Heap? With an example and algorithm briefly describe multi way merge sort

tree.

6. With neat diagrams, describe in detail about Reb-Black tree and Splay tree.

7. What is Divide and Conquer technique? With an example, describe in detail about merge

sort technique and also compute the best case time complexity.

8. What is dynamic programming? With an example, describe the process to solve 0/1

knapsack problem using dynamic programming. What is its time complexity?

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Code No: W2621/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

MINIG GEOLOGY - I

(Mining Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Write an Essay on origin of earth.

b) Define Volcano. Describe the Volcanic products

2. a) What is a mineral? Explain the physical properties of the minerals.

b) Write an essay on Olivine group of minerals.

3. a) Discuss the classification of Igneous Rocks.

b) Write an essay on textures of sedimentary rocks.

4. Explain the following

i) Crust and Mantle.

ii) Horn Blende.

iii) Gondwana Flora.

iv) Define fossil.

v) Basalt.

5. a) Describe the Dharwarian system.

b) Discuss the Kurnool system.

6. a) What is fault? Describe the various parts of faults with neat sketch.

b) Write an essay on classification of faults.

7. a) Write an essay on Spring?

b) Give a detailed account of electrical resistivity meter method of ground

water exploration.

8. a) Write an essay on Lamelli branch.

b) Define the index fossile. Discuss the uses of fossils in statiography.

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Code No: W2621/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

MINIG GEOLOGY - I

(Mining Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Describe and discuss the river valley.

b) Write an essay on mountains.

2. a) Describe the various physical properties to diagnose minerals, giving

suitable examples for each property.

b) Write an essay on Bowen’s Reaction series.

3. a) Discuss the textures of igneous rocks.

b) Write an essay on classification of sedimentary rocks.

4. Explain the following:

i) Age of the earth.

ii) Limestone.

iii) Geological Time scale.

iv) Water table.

5. a) Discuss the mineral wealth of Gondwanas in India.

b) Add a note on the Kurnool system.

6. a) What is a fold ? Mention the parts of the fold. Describe the different types

of folds.

b) Write short notes on the following:

i) Dip and strike

ii) Recumbent fold

7. a) Define the ground water. Discuss the hydrological cycle.

b) Describe the electrical resistivity method of ground water investigation.

8. a) Describe and discuss the definition and scope of palaeontology.

b) Write an essay on foraminifera.

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Code No: W2621/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

MINIG GEOLOGY - I

(Mining Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) Write an essay on the Origin and evolution of earth.

b) What are lakes ? Explain how they are formed.

2. a) Write short notes on any three of the following:

i) Luster.

ii) Fracture.

iii) Streak.

iv) Tenasity.

b) Write short notes on the any three of the following:

i) Quartz.

ii) Orthoclase.

iii) Biotite.

iv) Hornblende.

3. a) Define rock? Discuss the classification of metamorphic rock.

b) Write an essay on classification of igneous rocks.

4. a) Give the mineralogical composition, texture and uses of the following

rock types:

i) Conglomerate

ii) Gneiss

iii) Marble

iv) Dolorate

b) Write an essay on Textures of metamorphic rocks.

5. a) Discuss the scope and principles of statiography.

b) Give a concise account of the geological time scale.

6. a) Write an essay on soils.

b) What is the difference between faults and joints? Describe the different

types of faults.

7. a) Describe electrical resistivity method of ground water exploration and add a

Note on its merits and demerits.

b) What are earth quakes? What are land slides.

8. a) With neat sketch and describe Trilobite and its stratigraphic significance.

b) Discuss the significance of Gondwana flora in India.

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JNTUWORLD

Code No: W2621/R07

II B.Tech I Semester Supplementary Examinations, May- 2011

MINIG GEOLOGY - I

(Mining Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What is a Volcano ? Discuss the types the volcanos.

b) What are Oceans ? Explain the essay of Oceans.

2. a) What are rock forming minerals ? Give a brief account of their formation.

b) What is mica ? Describe biotite in detail and its occurrence and Industrial

Uses.

3. a) What is Igneous rocks ? Describe the mode of formation and the importance

Distinguishing petrologic features of these rocks.

b) What are sedimentary rocks ? Describe the classification of sedimentary

rocks .

4. Briefly explain the following:

i) Earth as a member of solar system.

ii) Olivine.

iii) Plutonic rocks.

iv) Indian peninsula.

v) Index fossil.

5. a) Discuss the physiographic divisions of India.

b) Discuss the statiographic succession of Cuddaphas.

6. a) Write short notes on:

i) Clinometer compass.

ii) Strike and Dip.

iii) Joints.

iv) Horst and Graben.

b) Write an essay on unconformities with neat sketches.

7. a) Give a detailed account of electrical resistivity meter method of ground

water exploration.

b) Write an essay on earth quakes.

8. a) Describe the gastropods ?

b) Write an essay on lamelli branch.

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