Code No: PRESTRESSED CONCRETE BITSVIZAG/BITS/EXAM CELL/q...PART±A (22 Marks) 1. a) What is pretensioning and post-tensioning? [4] b) What is pressure line? Explain its significance

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PART–A (22 Marks)

1. a) What is pretensioning and post-tensioning? [4]

b) What is pressure line? Explain its significance. [4]

c) List the types of losses in prestressed concrete beam. [4]

d) State any two factors influencing the deflection. [4]

e) How do prestressed concrete beams behave in torsion? [3]

f) What is transmission length? [3]

PART–B (3x16 = 48 Marks)

2. a) Why is the high strength of concrete and high grade of steel required for

prestressed concrete?

[8]

b) Explain any two methods of prestressing system. [8]

3. a) Explain load balancing concept. [8]

b) A beam is of simply supported span 8 m. The size of the beam is 350 mm ×

700 mm. A prestressing force of 1000 kN was applied. The cable is parabolic

with an eccentricity of 100 mm at the centre and zero at the supports. It is

subjected to a udl of 25 kN/m. Compute the extreme stresses at midspan.

[8]

4. a) What do you mean by loss of prestress? [8]

b) A prestressed concrete beam 200 × 300 mm deep is prestressed with wires

(area = 320 mm2) located at 50 mm from the bottom carrying an initial stress of

1000 N/mm2. The span of the beam is 10 m. Calculate the percentage loss of

prestress in wires when the beam is post-tensioned. Assume Es = 210 kN/mm2,

Ec = 35 kN/mm2. Relaxation of steel stress = 5% initial stress, shrinkage of

concrete = 200 × 10-6

, creep coefficient = 1.6, slip at anchorage = 1 mm,

friction coefficient = 0.0015 per metre.

[8]

IV B.Tech I Semester Regular Examinations, November - 2016

PRESTRESSED CONCRETE

(Civil Engineering)

Time: 3 hours Max. Marks: 70

Question paper consists of Part-A and Part-B

Answer ALL sub questions from Part-A

Answer any THREE questions from Part-B

IS Code 1343 Book is Permitted

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Code No: RT41012 Set No. 1 R13

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5. a) What are the factors affecting long-term deflections? [8]

b) A rectangular beam 250 × 500 mm in section is simply-supported over a span

of 10m. It is prestressed with a parabolic cable which has a maximum

eccentricity of 200 mm at midspan and 40 mm at support sections. Effective

prestressing force is 1450 kN. Concrete grade is M40. Determine the

deflection due to prestress and self weight.

[8]

6. a) How will you improve the shear resistance of structural concrete members by

applying prestressing technique?

[8]

b) Write the codal provisions of bending, shear and torsion. [8]

7. a) Describe Magnels method for end block design. [8]

b) What is the anchorage zone? [8]


2 of 2

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PART–A (22 Marks)

1. a) Distinguish between partial and fully prestressing. [4]

b) Define eccentric prestressing. [3]

c) How do you estimate the loss due to elastic shortening in PSC beams? [4]

d) Draw a typical load deflection behavior of a PSC beam up to failure. [4]

e) Discuss briefly the modes of failure due to shear. [4]

f) Sketch the distribution of stresses in the anchorage zone. [3]


2. a) Distinguish between linear and circumferential prestressing. [8]

b) Write about:

i) Permissible stress

ii) Relaxation of stress

iii) Stress corrosion

iv) Prestressed Concrete.

[8]

3. a) Explain stress concept. [8]

b) A prestressed concrete beam is of size 500 mm × 900 mm. The beam is simply

supported on a span of 8 m. It is subjected to a central concentrated load of

1500 kN. The beam carries a dead load of 10 kN/m. A bent tendon is provided

at an eccentricity of 100 mm below the centroidal axis and 50 mm below the

centroidal axis at the ends. Compute the extreme stresses at midspan of the

beam.

[8]



(Civil Engineering)






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4. a) List the influencing factors for the shrinkage loss. [8]

b) A rectangular concrete beam 100 × 300 mm is prestressed by means of eight 5

mm wires located 65 mm from the bottom and two 5 mm wires located 35 mm

from the top of the beam. If the wires are tensioned to a strong of 900 N/mm2,

calculate the percentage loss of stress in steel immediately after transfer allowing

for the loss of stress due to elastic deformation of concrete only. Given, Es =

210 kN/mm2 and Ec= 31.5 kN/mm

2.

[8]

5. a) Explain the procedure for computing short-term and long-term deflection of PSC

beams.

[8]

b) A concrete beam having a rectangular section 100 × 300 mm is prestressed by a

parabolic cable with an initial prestressing force of 240 kN. The cable has an

eccentricity of 50 mm at the centre and concentric at the supports. If the span of

the beam is 10 m and subjected to a live load of 2 kN/m. Calculate the short-

term deflection at midspan. Assume Ec = 38 kN/mm2, creep coefficient = 2, loss

of prestress = 20%. Estimate the long-term deflection.

[8]

6. a) A prestressed concrete beam having unsymmetrical I-section has a fibre stress

distribution of 13 N/mm2 (compression) at the top edge linearly reducing to zero

at the bottom. The top flange width and thickness are 2400 mm and 400 mm

respectively. The bottom flange width and thickness are 1200 mm and 900 mm

respectively and the depth and web thickness are 1000 mm and 600 mm

respectively. The total shear force is 2350 kN. Compute and compare the

principal stresses at the centroidal axis and the junction of web with lower

flange.

[8]

b) How do prestressed concrete beams behave in torsion? [8]

7. a) Explain Guyon’s method for end block design. [8]

b) Define End block. [8]


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PART–A (22 Marks)

1. a) Discuss different types of anchorages used in pre stressing systems. [4]

b) Write the equations of finding stresses developed at the top and bottom

fibres of the beam with eccentric pre stressing forces.

[4]

c) What do you mean by loss of pre stress? [3]

d) What are the types of deflections of pre stressed concrete members? [3]

e) Explain the mechanism of shear failure in the beams. [4]

f) Distinguish between spalling tension and bursting tension. [4]


2. a) Distinguish between standard strand and compound strand. [8]

b) A beam of size 500mm x 1000mm is used on simply supported span of 10m.

It is provided with a bent tendon having an eccentricity of 100mm at centre

and an eccentricity of 50mm upwards at the ends. The dead load of the beam

is 10kN/m. Compute the stresses at ends and at mid span.

[8]

3. a) Explain with sketches Magnell’s system of post tensioning? [8]

b) What are the different types of high tensile steel used in pre stressed concrete

members?

[8]



(Civil Engineering)






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4. a) What are the different types of losses of prestress. [4]

b) A pre tensioned beam 400 mm wide and 600 mm deep is pre stressed by 12

wires each of 10 mm diameter initially stressed to 1200 N/mm2 with their

centroids located 100 mm from the soffit. Estimate the final percentage loss of

stress due to elastic deformation, creep, shrinkage and relaxation using the

following data:

Relaxation of steel stress = 90 N/mm2

Es =210 kN/mm2, EC = 35 kN/mm

2

Creep coefficient = 1.5

Residual shrinkage strain = 2 x 10-4

[12]

5. a) What are the different types of flexural modes observed in prestressed concrete

beams?

[8]

b) A pre tensioned prestressed concrete beam having a rectangular section, 300mm

wide and 500mm deep has an effective cover of 40mm. If fck = 40N/mm2, fp

=1600 N/mm2

and the area of prestressing steel AP =561 mm2. Calculate the

ultimate flexural strength of the section using IS code provisions.

[8]

6. a) Explain with sketches the method of estimating the ultimate flexural strength

of flanged prestressed sections according to IS 343 code specifications?

[8]

b) Explain the mechanism of shear failure in the beams. [8]

7. a) Discuss the stress distribution in end block. [6]

b) The end block of prestressed concrete is of size 120mm x 1300mm, an

effective pre stressing force of 300 kN is transmitted. The distribution plate is

of size 150mm wide and 150mm deep concentrically loaded at the ends.

Calculate the maximum tensile force and bursting tension. Use Guyon’s

method.

[10]


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PART–A (22 Marks)

1. a) List the general principles of prestressing. [3]

b) How is corrosion of steel taken care off? [3]

c) What is loss of prestress due to relaxation? [4]

d) What are the factors influencing short term and long term deflections? [4]

e) How do you estimate the shear strength of PSC beams? [4]

f) Write a note on end zone reinforcement in end block. [4]


2. a) Distinguish between standard strand and compound strand. [8]

b) A beam is of simply supported span 8m. The size of the beam is 350mm x

700mm. A prestressing force of 100kN was applied. The cable is parabolic with

an eccentricity of 100mm at centre and zero at the supports. It is subjected to an

udl of 20kN/m. Compute the extreme stresses at the mid span.

[8]

3. a) What is pre tensioning and post tensioning. [8]

b) Explain with sketches Freyssinett system of post tensioning? [8]

4. a) A prestressed concrete beam 400mm x 400mm, is presressed by 10 wires, each

of 8mm diameter. The wires are initially stressed to 1200N/mm2

with their

centriods located 60mm from the soffit. Calculate the final percentage loss of

stress due to elastic deformation, creep, shrinkage and relaxation using the

following data:

ES =210kN/mm2 and Ec=32kN/mm

2,

Creep coefficien.t =1.6 , Residual shear strain = 3 x 10-4

Relaxation of steel stress = 90N/mm2.

[8]

b) Define creep coefficient and how do we estimate the loss due to creep. [8]



(Civil Engineering)






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5. A prestressed concrete beam is of unsymmetrical I section having top flange

width and thickness 750mm and 250mm respectively. The bottom flange width

and thickness are 500mm and 250mm respectively. The total depth is 1700mm.

Thickness of web is 200mm. The area of prestressing steel is 1400mm2. The

prestressing steel is provided at a distance of 100mm from the soffit of the beam.

If fck = 40MPa and fpu = 1700MPa, Calculate the ultimate flexural strength using

IS CODE.

[16]

6. a) Differentiate between short term deflections and long term deflections. [8]

b) The horizontal prestress at the centriod of a concrete beam of rectangular cross

section 340mm by 680mm, is 10N/mm2 and maximum shearing force on the

beam is 90kN. Calculate the maximum principal tensile stress.

[8]

7. Explain the term End blocks. Write the steps involved in the design of end

blocks by Guyon’s method.

[16]

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PART–A (22 Marks)

1. a) List the advantages and problems associated with EHVAC transmission? [4]

b) What are the reasons for the production of Radio interference and audible noise on

over head EHV AC transmission lines?

[4]

c) List the differences between HVDC and HVAC transmission? [3]

d) Explain the principle of dc link control? [4]

e) What are types of filters that are designed to filter the harmonics in HVDC

transmission, give brief description about them?

[4]

f) Define Characteristic and non characteristics harmonics? [3]


2. a) Briefly explain about power handling capacity of A.C transmission lines and line

losses?

[8]

b) Write about the properties of Bundled conductors used in EHV AC transmission

lines?

[8]

3. a) Draw and explain the block diagram of micro phones used in measuring the audible

noise?

[8]

b) Discuss about different types of weighting networks and also draw the frequency

response of A, B, D and A, D networks?

[8]

4. a) Sketch the schematic diagram of a typical HVDC transmission system by

representing the each component used in it?

[8]

b) Explain how the modern technology used in HVDC transmission system improves

the reliability and performance of it?

[8]

5. a) Explain the operation of six pulse converter bridge with neat diagram? [8]

b) Discuss about various Equidistant Pulse Control schemes in detail? [8]

6. a) Briefly explain how the reactive power is provided using SVC and STATCOM? [8]

b) Explain when alternate converter control strategies can be adopted for HVDC

transmission system and also draw their characteristics with description?

[8]

7. a) Design the single frequency tuned filters and double frequency tuned filters? [8]

b) Explain different types of AC filters that are available for the elimination of

harmonics?

[8]

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HVAC & DC TRANSMISSION

(Electrical and Electronics Engineering)





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PART–A(22 Marks)

1. a) Write the equation for resistance of conductor of EHV AC Transmission line and

also state different effects of resistance of conductor?

[3]

b) Give the formulae for Corona loss based on voltages and voltage gradients? [4]

c) State any four areas in which HVDC transmission system is used and explain them? [4]

d) Explain the operation of Graetz bridge with neat sketch? [4]

e) Define forced commutation? Why it is used and how it is implemented in HVDC

transmission system and also state where it is adopted?

[4]

f) Name the means by which the harmonics developed in DC and AC waveforms are

minimized?

[3]

PART–B(3x16 = 48 Marks)

2. a) Derive the expression for charge and potential relations for multi conductors? [8]

b) Draw the schematic of a very long EHV-AC transmission system and also explain

about each part of it?

[8]

3. a) What is excitation function? Why it is used and develop an equation for total energy

received at a point on a line due to all sources?

[8]

b) Explain the working and purpose of Radio Noise Meter with the help of neat sketch? [8]

4. a) Compare the AC and DC modes of transmission? [8]

b) Discuss about different factors that are considered while planning for HVDC

transmission?

[8]

5. a) Briefly explain what is meant by starting and stopping of a DC link? [8]

b) Plot the converter control characteristics and write their significance? [8]

6. a) i) A back to back HVDC link with one bridge at each end is transmitting 100 MW

with Vd=100kv. If α=15, Ɣ=18

. Find Vdor, Vdoi, Qr and Qi. Assume Rcr=Rci=12Ω.

ii) If the DC link is controlled such that Qi is kept at the value earlier. Then find Vd,

Id, Qr, α and Ɣ?

[8]

b) Compare SVC and STATCOM? [8]

7. a) Discuss about characteristic harmonics in detail? [8]

b) Discuss about Non characteristic harmonics in detail? [8]








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PART–A(22 Marks)

1. a) Explain the necessity of EHVAC transmission and also write its applications? [4]

b) Explain when the audible noise is generated by the EHV AC transmission lines and

also draw the audible noise frequency spectra from A.C lines?

[4]

c) Give some reasons why HVDC system is selected as an alternative to EHV AC

transmission system?

[3]

d) What is meant by firing angle control? Also mention the two basic requirements for

the firing pulse generation of HVDC valves?

[4]

e) Sketch and explain the characteristics which shows the variation of Id, Vd and α with

Pd for constant reactive power?

[4]

f) State the harmful effects of AC and DC harmonics? [3]


2. a) Write the different special features and technical considerations for EHVAC lines? [8]

b) Give the brief description about mechanical considerations taken into account for

EHV AC lines?

[8]

3. a) Explain about the propagation of RI waves by conduction, radiation and magnetic

induction?

[8]

b) Derive the expression PC= (1/2)KC[Vm2-V0

2] for the energy loss from the charge

voltage diagram?

[8]

4. a) With the help of neat diagrams explain the different types of HVDC links? [8]

b) Draw and explain the different configurations used for asynchronous

interconnection?

[8]

5. a) Briefly write about the current and extinction angle control scheme used for HVDC

transmission system?

[8]

b) Explain the operation of 3-phase 12 pulse converter bridge with neat diagram? [8]

6. a) Plot the characteristics which show the variation of Reactive power as a function of

active power and also develop the equations for them?

[8]

b) Explain how the reactive power is provided by using AC filters and synchronous

condensers also mention their advantages?

[8]

7. a) What is the main objective in the design of AC filters and how it can be measured

using different performance indices?

[8]

b) Write the effects of Non-Characteristic harmonics in detail? [8]








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PART–A(22 Marks)

1. a) Explain the necessity of EHVAC transmission and also write its applications? [4]

b) List out the factors responsible for the generation of audible noise by a transmission

line? Also write the names of objectionable disturbances caused in over head EHV

AC transmission line?

[4]

c) What are the main objectives of using modern technology in HVDC transmission

system?

[3]

d) Write the advantages of converter control and system control of HVDC transmission

system?

[4]

e) List out the sources available to meet reactive power requirements of converters in

HVDC transmission system?

[4]

f) Explain the design procedure for High Pass filters? [3]


2. a) What are the economic and technical considerations while selecting the voltage for

EHV AC transmission lines?

[8]

b) Define the following terms related with EHVAC transmission system and also give

the standard rated voltages for EHVAC transmission system?

i) multiple conductors ii) single circuit line iii) double circuit line iv) electrical line

[8]

3. a) Draw and explain the circuit used for measuring the Radio Influence Voltage? [8]

b) Explain how the excitation function is measured by using different cage setups with

the help of measuring circuit?

[8]

4. a) Write the several advantages of a VSC based HVDC links over classical HVDC

links?

[8]

b) Draw and explain the schematic of a single line diagram of a VSC based HVDC

converter station?

[8]

5. a) Briefly discuss about Individual Phase Control firing scheme of a HVDC system? [8]

b) Draw and explain about the block diagram of a basic power and auxiliary controller

used in HVDC transmission system?

[8]

6. a) Compare SVC and STATCOM in various aspects? [8]

b) What are the reactive power requirements in steady state? Also write about

conventional and alternate control strategies in HVDC systems?

[8]

7. a) Write the several problems associated with the injection of harmonics into the DC

line?

[8]

b) Define harmonics? What are the factors responsible for the generation of harmonics

and name some methods to eliminate harmonics? And also list out the problems

caused due to harmonic instability?

[8]

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HVAC & DC TRANSMISSION (Electrical and Electronics Engineering)





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PART–A(22 Marks)

1. a) List out the various computer aided processes. [4]

b) Explain the characteristics of Bezier curve? [3]

c) Explain about the memory devices used in NC, CNC and DNC machines? [4]

d) What are various languages used in GT? [3]

e) What are the different types of CMM? [4]

f) Differentiate continuous and batch production systems? [4]


2. a) Briefly explain the conventional process of the product cycle in the conventional

manufacturing environment.

[8]

b) What are the designs related tasks performed by modern computer? Explain with

block diagram

[8]

3. a) Explain 3-D scaling, rotation, reflection and translation with suitable example? [8]

b) What is the need for concatenation of transformations? Explain what care should

be taken in such cases.

[8]

4. a) What are the basic components of NC system and explain the function of each

component?

[8]

b) Sketch and explain DNC setup. [8]

5. a) Discuss the different stages of a group technology plan. Discuss the types of work

that are to be conducted at each stage of the plan.

[8]

b) Explain briefly the MICLASS system of codification. [8]

6. a) Explain the application and advantages of integration of CAQC with CAD/CAM

systems.

[8]

b) Explain in detail the scanning laser system used in computer aided quality control. [8]

7. a) Explain in detail the different types of database requirements in CIM. Discuss the

integration of CAD database and CMM operation.

[8]

b) Describe hardware configuration of CIM with the help of a sketch. [8]

1 of 1


CAD/CAM (Common to Mechanical Engineering and Automobile Engineering)





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Code No:RT41032 Set No. 1 R13

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PART–A (22 Marks)

1. a) Briefly describe the types of storage devices used in computers. [4]

b) Write a brief note on solid modelling. [4]

c) What is the importance of G-codes in part programming? Give examples. [4]

d) Explain the importance of CAPP in automation? [3]

e) Differentiate contact and non-contact type CAQC systems? With examples. [4]

f) Give the block diagram of MRP. [3]


2. a) Elaborate on the basic requirements that CAD software has to satisfy. [8]

b) Write short notes on the following:

i) Random scan graphic terminal ii) Digitizers and Image scanners iii) CPU

[8]

3. a) A scaling factor of 2 is applied in the Y direction while no scaling is applied in the

X direction to the line whose two endpoints are at coordinates (1, 3) and (3, 6).

The line is to be rotated subsequently through 300, in the counter clockwise

direction. Determine the necessary transformation matrix for the operation and the

new coordinates of the end points.

[8]

b) Explain the details of polygon clipping. Give its advantages compared to the line

clipping.

[8]

4. a) Discuss the several word functions in Numerical Control systems. Discuss the

advantages of DNC over NC/CNC.

[8]

b) Discuss any five motion statements used in APT part programming. [8]

5. a) Explain the following in detail:

i) Composite component ii) Design and manufacturing attributes

iii) Hybrid structures.

[8]

b) Explain briefly the MICLASS system of codification. [8]

6. a) Explain the application and advantages of integration of CAQC with CAD/CAM

systems.

[8]

b) Explain in detail the scanning laser system used in computer aided quality control. [8]

7. a) Discuss the possible computer applications in Manufacturing Planning activities. [8]

b) Discuss the role of CAPP in CIM in detail. [8]

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CAD/CAM

(Common to Mechanical Engineering and Automobile Engineering)





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PART–A(22 Marks)

1. a) What is the structure of a computing system? [3]

b) Explain constructive solid geometry modelling techniques in detail with example? [4]

c) What is meant by Adoptive control? [4]

d) Differentiate generative and retrieval type CAPP systems? [4]

e) What are the various computer aided tests used in CAQC? [4]

f) Explain the benefits of CIM? [3]


2. a) Briefly describe the types of storage devices used in computers. [8]

b) What are the reasons for implementing a computer aided design system? With the

help of a block diagram, explain the computer aided design process.

[8]

3. a) What is the need for concatenation of transformations? Explain what care should be

taken in such cases.

[8]

b) Find the transformed coordinates when a square [(1, 1), (2, 1), (1, 2) and (2, 2)] is

rotated by 90° anticlockwise about a line passing through one of its vertex (1, 1) and

parallel to x-axis ?

[8]

4. a) What are the basic components of NC system and explain the function of each

component?

[8]

b) Describe various G and M codes used in CNC machines? [8]

5. a) Explain the following in detail:

i) Composite component ii) Design and manufacturing attributes

iii) Hybrid structures.

[8]

b) Apply the rank order clustering technique to the following part-incidence matrix to

group parts into part families.(Minimum duplication of machines is allowed)

[8]

6. a) Discuss the objectives of CAQC. Explain the different computer aided inspection

methods.

[8]

b) Explain the application and advantages of integration of CAQC with CAD/CAM

systems

[8]

7. a) Explain CIM integration of all activities of industry. [8]

b) Discuss the role of CAPP in CIM in detail. [8]

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CAD/CAM






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PART–A (22 Marks)

1. a) What do you understand by the CPU? [3]

b) Explain the characteristics of Bezier curve? [4]

c) Differentiate NC, CNCand DNC systems? [4]

d) Give the block diagram of generative type CAPP systems? [4]

e) How CMM is used as CAQC system? [4]

f) What are the components of CIM wheel? [3]


2. a) Briefly explain the conventional process of the product cycle in the conventional

manufacturing environment.

[8]

b) What is the structure of a computing system? [8]

3. a) Explain 3-d scaling, rotation, reflection and translation with suitable example? [8]

b) Find the transformed coordinates when a line [(3, 4), (4, 2),] is rotated about a z-

axis by an angle of 45° in anticlockwise direction?

[8]

4. a) Describe the axis representation system used for CNC Milling machines. Discuss

the various interpolation methods used in NC machines.

[8]

b) Explain the APT statements:

i) GOTO and GO/TO ii) GODLTA and GOBACK and iii) INTOL and OUTTOL.

[8]

5. a) What are part families in group technology? Discuss machine cell design in GT. [8]

b) Apply the rank order clustering technique to the following part-incidence matrix to

group parts into part families.(Minimum duplication of machines is allowed)

[8]

6. a) Discuss the objectives of CAQC. Explain the different computer aided inspection

methods.

[8]

b) Explain the application and advantages of integration of CAQC with CAD/CAM

systems

[8]

7. a) Discuss the possible computer applications in Manufacturing Planning activities. [8]

b) Explain CIM integration of all activities of industry. [8]

1 of 1


CAD/CAM






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PART–A (22 Marks)

1. a) Explain about WAN. [4]

b) What are the different types of ISDN interfaces? [4]

c) With an example explain the process of Error detection using LRC. [4]

d) What is the difference between Broadcasting and Multicasting? [4]

e) What are TCP and UDP protocols? [3]

f) Explain about HTTP. [3]


2. a) Explain the different topologies of the network. [8]

b) Explain the TCP/IP model? [8]

3. a) Explain the significance of Switching? What are different switching techniques

used in computer networks? Discuss.

[8]

b) Discuss about ATM in detail? [8]

4. a) Explain about ALOHA and CDMA. [8]

b) Explain various classes of IEEE 802.X Standard Ethernet. [8]

5. a) With an example explain the Dynamic routing algorithms used in computer

networks.

[8]

b) What are the reasons for congestion? What are the problems with congestion? [8]

6. a) Explain the Services of Transport layer. [8]

b) Explain leaky bucket and token bucket algorithms. [8]

7. a) Explain how Network Security can be achieved. [8]

b) Write about electronic mail in detail.

[8]

1 of 1


COMPUTER NETWORKS

(Electronics and Communication Engineering)





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PART–A (22 Marks)

1. a) Explain about LAN. [4]

b) What are the differences between Narrowband ISDN and Broadband ISDN? [4]

c) With an example explain the process of Error detection usingVRC. [4]

d) What are the characteristics of datagram networks? [4]

e) What are the responsibilities of Transport layer? [3]

f) What is meant by data encryption standard? [3]


2. a) Explain various categories of networks. [8]

b) Explain the ISO/OSI reference model. [8]

3. a) With neat sketch explain Twisted pair cables, connectors of twisted pair cables

with neat graph explain the performance of Twisted pair cables.

[8]

b) What is the significance of ISDN? Explain the basic concept of ISDN. Give the

protocol architecture of ISDN?

[8]

4. a) Explain the working of CSMA Protocol. [8]

b) Explain the advantages of wireless LANS. [8]

5. a) Explain the layered architecture of ATM Network. [8]

b) With an example explain the shortest path routing algorithms used in computer

networks.

[8]

6. a) Discuss about TCP and UDP Protocols [8]

b) Explain ATM AAL Layer Protocol. [8]

7. a) Write about Electronic mail in detail. [8]

b) Explain the working of DNS. [8]

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COMPUTER NETWORKS






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PART–A (22 Marks)

1. a) Explain about MAN. [4]

b) What is the significance of Switching? What are the different types of Switching

techniques?

[4] c) With neat sketch explain the basic concept involved in Elementary Protocol: stop

and wait

[4] d) Explain the differences between 10 base 2 and 10 base 5 Ethernet. [4]

e) What are the sub layers of AAL layer of ATM. [3]

f) What is the significance of DNS? [3]


2. a) Explain the following networks

i) ARPANET ii) Internet

[8]

b) What is the significance of layered architecture? Explain the OSI layered

architecture with neat sketch.

[8]

3. a) With neat graphs explain various line coding techniques (Digital to digital

conversion).

[8]

b) Explain the concept of ATM and its interfaces. How addressing is achieved in

ATM?

[8]

4. a) Explain the following error detection techniques

i) LRC ii) CRC

[8]

b) With an example explain the sliding window Flow control mechanism. [8]

5. a) With an example explain the distance vector routing algorithms used in computer

networks

[8]

b) What are the general principles of congestion control? Explain.

[8]

6. a) Explain in detail about Connection management. [8]

b) Discuss about the header format of UDP. [8]

7. Write short notes on the following

i) Multi Media ii) SNMP

[16]

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COMPUTER NETWORKS






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PART–A (22 Marks)

1. a) What is the significance of topologies? What are the different types of topologies? [4]

b) What are the different types of ATM interfaces. [4]

c) Explain the differences between Pure and Slotted ALOHA Systems. [4]

d) Define Congestion. What are the general Principles of Congestion? [4]

e) What is Connection management? [3]

f) Explain the WWW. [3]


2. a) Explain the differences between OSI model and TCP/IP model? [8]

b) Explain the following networks

i) ARPANET ii) NSFNET

[8]

3. a) With neat sketch explain Coaxial cable, Standards of coaxial cable and connectors

of coaxial cables.

[8]

b) Explain the significance of Switching? What are different switching techniques

used in computer networks? Discuss.

[8]

4. a) Explain the following error detection techniques

i) Cheksum ii) CRC

[8]

b) What is the significance of Bridges? Explain the different types of Bridges. [8]

5. a) With an example explain the Flooding, Hierarchical routing algorithms used in

computer networks

[8]

b) Explain the Network layer in the internet. [8]

6. a) Explain ATM AAL Layer Protocol [8]

b) Explain leaky bucket and token bucket algorithms. [8]

7.

Write short notes on the following

i) DNS ii) SNMP

[16]

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COMPUTER NETWORKS






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PART–A (22 Marks)

1. a) What are different perspectives to apply UML? [3]

b) What are different types and categories of requirements in UP? [4]

c) What is the purpose of GRASP patterns? [5]

d) Write the intent of fabrication design pattern? [4]

e) Define sub-machine? [3]

f) Define package and draw the UML notation for Package. [3]


2. a) What is a design? Explains the goals of good design? [8]

b) Explain MVC architecture with an Example? [8]

3. a) What is use case? Explain different elements in use case with an example? [8]

b) Draw a neat use case diagram for online railway reservation system? [8]

4. a) Briefly discuss about the GRASP design patterns? [8]

b) What are different artifacts that may start in elaboration phase? Explain. [8]

5. a) Explain Intent, Motivation and Applicability for factory design pattern with an

example?

[8]

b) Describe the concept of Publish-Subscribe? [8]

6. a) Explain common modeling techniques for State chart diagram? [8]

b) Draw a neat Activity diagram for ATM application? [8]

7. a) Explain in detail about Use case relationships. [8]

b) Briefly explain about packaging model elements. [8]

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UML & DESIGN PATTERNS

(Common to Computer Science & Engineering and Information Technology)





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PART–A (22 Marks)

1. a) Mention different types of workflows in OOAD? [3]

b) Write short notes on FURPS model? [4]

c) What are the advantages of Domain Modeling? [4]

d) Write the intent of Indirection design pattern? [3]

e) Describe Fork and Join in activity diagram? [4]

f) Define Association and Aggregation.

[4]


2. a) Explain Iterative development with an example? [8]

b) Briefly discuss about the steps how to select a design pattern? [8]

3. a) How are requirements organized in UP artifacts? [8]

b) Explain use case diagram with an example? [8]

4. a) How to create a domain model? Explain with one example. [8]

b) Write short notes on Information expert, Creator of GRASP and Cohesion. [8]

5. a) Explain in detail about factory design pattern? [8]

b) Explain Applicability, Structure and participants for singleton design pattern

with an example?

[8]

6. a) Explain common modeling techniques for Activity diagram? [8]

b) Draw a neat component diagram for online shopping? [8]

7. a) Explain use case template with an example? [8]

b) Explain the usage of generalization relationship in various UML diagrams? [8]

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PART–A (22 Marks)

1. a) What are the benefits of Iterative Development? [5]

b) Describe the scope of the use case model? [4]

c) Mention any three differences between sequence and collaboration diagrams? [3]

d) Write the intent of publish-subscribe design pattern? [4]

e) Write the differences between class and object diagrams? [3]

f) Write short notes on specialization relationship? [3]


2. a) Explain different phases in unified process? [8]

b) Write short notes on Describing design patterns? [8]

3. a) Explain use case types and formats with examples? [8]

b) What different artifacts that may start in Inception phase? Explain. [8]

4. a) Explain system sequence diagram with an example. [8]

b) What are conceptual classes? What are different strategies to find conceptual

classes?

[8]

5. a) Explain differences between pure fabrication and indirect fabrication? [8]

b) Explain Applicability, Structure and participants for façade design pattern with

an example?

[8]

6. a) Explain common modeling techniques for component diagram? [8]

b) Draw a neat state chart diagram for library management system? [8]

7. a) Explain stereo types for dependency relationships in detail? [8]

b) Define guidelines to model association classes, abstract classes and association

role names?

[8]

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PART–A (22 Marks)

1. a) Define design pattern? State use of design pattern? [4]

b) What is the purpose of Inception phase? [4]

c) What is meant by interaction diagram? [4]

d) Write the intent of factory pattern. [3]

e) Define Events, States and Transitions. [3]

f) Explain generalization relationship with example? [4]


2. a) Explain about Object Oriented Analysis and Design process. [8]

b) Write about Unified Process work flows. [8]

3. a) How to find use cases? Explain with an example. [8]

b) What are three types of use cases? Explain with examples. [8]

4. a) Explain the operation of Mapping Designs to Code. [8]

b) Explain GRASP designing objects with responsibilities. [8]

5. a) Explain about Façade design pattern. [8]

b) Discuss about Indirection pattern with an example. [8]

6. a) Discuss about activity diagrams. [8]

b) What artifacts to be identified for drawing component diagram. [8]

7. a) What are association classes? What are the guidelines to add association class?

Illustrate with an example.

[8]

b) Discuss about Aggregation and Composition relationships. [8]

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IV B.Tech I Semester Supplementary Examinations, November - 2016

HIGH VOLTAGE ENGINEERING



Answer any FIVE Questions

All Questions carry equal marks

*****

1 a) Explain the Finite Element Method for solving the electric field problems. [8]

b) Briefly explain the Charge Simulation Method for electric field computation in

multi-dielectrics.

[7]

2 a) Explain the Streamer theory of breakdown in gases. [8]

b) Differentiate pure and commercial liquid dielectrics.

[7]

3 a) Explain the phenomena of Internal discharge in solid dielectrics. [8]

b) Indicate the insulation applications in power cables and bushings.

[7]

4 a) With neat sketch, explain the working of a Van de Graaff generator. [8]

b) Calculate the peak current and wave shape of the output current of the

generator having the total capacitance of 53 µF. The charging voltage is 200

kV, circuit inductance 1.47 mH and the dynamic resistance of the test object is

0.05 ohms.

[7]

5 a) Explain the construction and principle of an electrostatic voltmeter for high AC

voltage measurements.

[8]

b) Explain how a mixed potential divider can be used for impulse voltage

measurements.

[7]

6 a) Explain the high voltage Schering bridge for capacitance measurement of an

insulator.

[8]

b) Discus the method of balanced detection for locating partial discharges in

electrical equipment.

[7]

7 a) Briefly explain the power frequency and impulse tests on insulators. [8]

b) Explain the method of impulse testing on high voltage transformers.

[7]

8 a) Briefly explain various industrial applications to high voltage engineering. [8]

b) Explain the working of an electrostatic photo copier. [7]

Code No: R41022 Set No. 1 R10

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CAD/CAM





*****

1 a) Write any four differences between LAN and WAN [8]

b) Write a brief note on output devices.

[7]

2 a) For the polygon ABCDE with vertices A(4,3) , B(4,8), C(6,10), D(8,8), E(8,3).

Flip the polygon about the axis at 60 degrees.

[8]

b) What is mapping? What are the application areas where mapping can be used?

[7]

3 a) What is solid modeling? Explain about different entities used in solid modeling

with neat diagrams.

[8]

b) Explain about CSG approach in solid modeling

[7]

4 a) What is the importance of set theory in solid modeling? [8]

b) Write a short note on layering technique.

[7]

5 a) Write a short note on

(i) Absolute and Incremental positioning system.

(ii) Fixed and Floating zero method.

[8]

b) Define Numerical Control. Explain the elements of NC in detail.

[7]

6 a) Explain about Computer Aided Process Planning. [8]

b) Explain Opitz classification system.

[7]

7 a) Explain about contact inspection methods. [8]

b) Explain about the terminology used in quality control.

[7]

8 a) Discuss the computerized elements of CIM system. [8]

b) Explain the role of human labor in CIM. [7]


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EMBEDDED SYSTEMS

(Common to Electronics & Communication Engineering and

Electronics & Computer Engineering)




*****

1 Explain some system components for the proper functioning of the processor

of the embedded system.

2 Explain Operational Quality Attributes of embedded systems.

3 What is sequential circuit? Explain some sequential circuits.

4 a) What is Assembly Language Programming? Explain the format of assembly language

instructions.

b) What is the difference between Compiler and Cross compiler?

5 Discuss the decision of choosing an RTOS for an embedded design.

6 a) Explain the Concurrent or Communicating Process model.

b) Explain the role of State Machine Model in embedded system.

7 a) Explain the boundary Scanning technique for Testing the interconnections.

b) Explain On Chip Debugging (COD).

8 a) Explain how testing is possible on Host machine including steps during testing.

b) Explain the use of In Circuit Emulator (Hardware tool).


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Documents

Code No: PRESTRESSED CONCRETE BITSVIZAG/BITS/EXAM CELL/q...PART±A (22 Marks) 1. a) What is pretensioning and post-tensioning? [4] b) What is pressure line? Explain its significance