bt32r05 part 4 rahul

8/8/2019 Bt32R05 Part 4 Rahul

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Code No: P0103/R05 Set No. 1

III B.Tech II Semester Supplementary Examinations, April 2010BASIC STRUCTURAL STEEL (DESIGN AND DRAWING)

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

Answer any ONE Question from PART-Aand any THREE Questions from PART-B

Note:Assume suitable data whenever necessaryUse of IS codes & Structural Tables is permitted

PART-A(Marks:32)

1. Design a compression member of two channels toe-to-toe. The length of the com-

pression member is 8m. It carries a load of 1000 kN. The width over the backs ofchannels is 400mm. The channels are connected by battens. Draw

(a) Sectional elevation of the column

(b) Cross section of the column. [16]

2. Design a welded plate girder of 30 m span to the support a live load of 75 kN/muniformly distributed over the span. Adopt permissible stress as per I.S.:800-1984.Draw the longitudinal elevation, cross-section and plane of the girder. [16]

PART-B (Marks:16x3=48)

3. (a) A tie bar 12010mm is to be connected to the other tie bar of size 120mm14mm.If the tie bars are to be loaded by a pull of 160kN. Find out the size of end fil-lets such that the stresses in the end fillets are the same. Take the permissiblestresses in the weld =110N/mm2.

(b) The tension member of a truss consists of two angels of 50mm 80mm 8mm. If the two angles are welded on either side of the gussets plate at the

joint, design the joint. Axial tension in the member is 150 kN. Permissibleshear stress in the weld material is 110 N/mm2. Use 6mm fillet welds. [8+8]

4. A simply supported beam of effective span 8m carries a uniformly distributed load

of 40 kN/m. Taking Fy 250N/mm2

and E=2

105

N/mm2

design the beam if it islaterally supported? Draw the details of beam? [16]

5. A built up column consist of ISHB 400 @ 774 N/m with one 300 mm 12 mmflange plate on each side. The column carries an axial load of 2400 kN. Designa gusseted base, if the column is supported on concrete pedestal with a bearingcapacity of 4 N/mm2. [16]

6. The principal RAFTER in a tubular truss carries a load of 200 kN. A tie membermeeting at 450 to it carries a load of 60 kN. The panel length of the rafter is 2.4 mand that of tie member is 2.5 m. Design the members. [16]

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7. Design the maximum section of a plate girder for a bridge, for a live load of 60kN/m, longer than the span, and a dead load of 40 kN/m. The girder is simplysupported over an effective span of 12 m. Take impact factori = 20 / 14+L. [16]

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PART-A(Marks:32)

1. A column section ISHB300 at 63 kg/m with one cover plate 400 mm 20 mm oneither side is carrying an axial load of 2000 kN inclusive of self weight of base andcolumn. Design a gusseted base for the column, assuming the allowable bearingpressure on concrete as 4 N/mm2 and the bending stress in base plate as 185N/mm2. Sketch the details of the gusseted base. [16]

(a) Side view of the gusseted base

(b) Plan view of the foundation. [16]

2. Design a suitable web splice for a plate girder at a section at which the bendingmoment is 5000 kN-m and shear force is 1000 kN. The plate girder is built-up froma web plate 2500 mm deep 16 mm thick and two ISA 200 mm 150 mm 15mm (ISA 200 150 @ 0.394 kN/m) angles and a 600 mm 16 mm cover plate in

each flange. The rivets used are of 22 mm diameter. Draw a sketch of the splice.The long legs of the flange angles are placed horizontally. [16]


3. (a) Explain I.S. code requirements for the size and length of welds?

(b) Design a lap joint for connecting two plates of sizes 150mm10mm and 20010mmallowing a safe shear stress of 110 N/mm2 in the weld. The permissible tensilestress in the plate is 150 N/mm2. Draw neat sketch of the welded joint withall details? [6+10]

4. A simply supported beam of effective span 12m carries a uniformly distributed loadof 40 kN/m. Taking Fy 250N/mm

2 and E=2105 N/mm2 design the beam if it islaterally supported? Draw the details of beam? [16]

5. (a) With neat sketches explain the net effective sections for angles and Tees intension?

(b) With neat sketches explain the practical end conditions and effective lengthfactors for columns? [8+8]

6. Design an unequal angle section to act as a tie member 1.86 m long in a roof truss,if it carries an axial load of 150 kN. Use power driven rivets at joint. [16]

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7. Design a welded plate girder 20 metre span and simply supported at the two ends.It carries a uniformly distributed load of 120 kN/m. Design cross section andstiffeners. [16]

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PART-A(Marks:32)

1. Design a compression member of two channels toe-to-toe. The length of the com-

pression member is 8m. It carries a load of 1000 kN. The width over the backs ofchannels is 400mm. The channels are connected by battens. Draw



2. The cross section of a plate girder, with a web plate of 1200 12 mm with twoflange angles of ISA 150 150 10 mm in each flange is subjected to a BM of2500 kN.m and a SF of 500 kN. It contains two flange plates of 400 12 mm oneach flange. Design a suitable web splice and show the details with a neat sketch.

[16]


3. (a) What are the advantages of welded connections? Explain the following forfillet weld considering I.S. specifications?

i. Size of weld

ii. Throat thickness

iii. Length of weld.

(b) With neat sketches explain different types of welds? [8+8]

4. A simply supported beam of effective span 12m carries a uniformly distributed load

of 40 kN/m. Taking Fy 250N/mm2

and E=2

105

N/mm2

design the beam if it islaterally supported? Draw the details of beam? [16]

5. A column made of 2 ISMC 300 placed face to face at 350 mm outer to outer carriesan axial load of 400 kN. Design a base plate. [16]

6. Design the principal rafter of a steel roof truss shown in Figure 6 for a clear spanof 12.0 m. The truss is supported over masonary columns 45 cm 45 cm. Thetrusses are placed 3 m c/c and support galvanized iron sheet on rafters and steelpurlins. The rise of the truss is 1/3 of span. The design wind pressures may beassumed to be 1000 N/m2. [16]

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Figure 6

7. A plate girder simply supported at ends is composed of flange plates, flange anglesand web plate as shown in figure 7. Effective span of plate girder is 20 m. The plategirder is subjected to maximum bending moment of 9000 kN-m due to uniformly

distributed load. Determine actual lengths of flanges if they are curtailed. [16]

Figure 7

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PART-A(Marks:32)

1. Design a built up column composed of two channel sections placed back to back,carrying an axial load of 1300 kN. The effective length of the column is 5.95m andFy=250 N/mm2. Also design a single lacing system. Draw



2. Design a welded plate girder of 30 m span to the support a live load of 75 kN/muniformly distributed over the span. Adopt permissible stress as per I.S.:800-1984.Draw the longitudinal elevation, cross-section and plane of the girder. [16]


3. (a) Explain the following for fillet welds considering I.S. specifications?

i. Size of weld

ii. Throat thickness

iii. Length of weld.

(b) A bracket carrying a load of 100 kN is connected to column by means of twohorizontal fillet welds, each of 120mm effective length and 10mm thick. Theload acts at 80mm from the face of the column as shown in the figure 3b. Findthe throat stress? [9+7]

Figure 3b

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4. (a) With neat sketches explain laterally unsupported beams ?

(b) Design a rolled steel I section for a simply supported beam with a clear span

of 8m. It carries of uniformly distributed load of 45 kN.per meter exclusive ofself weight. The beam is laterally unsupported? [6+10]

5. (a) Explain about splicing of columns

(b) With neat sketches explain laced end battened columns

(c) With neat sketches explain different type of lateral systems used for compoundcolumns? [6+5+5]

6. Design a channel section purlin and angle purlin for a trussed roof from the followingdata :Span of roof truss = 12 m

Spacing of roof truss = 4.5 mSpacing of purlins along the slope of roof truss = 1.2 mSlope of roof truss = 1 vertical to 2 horizontalWind load on roof surface normal to roof = 1.2 kN/m2.Vertical load from roof sheeting etc = 0.3 kN/m2. [16]

7. A plate girder section consists of the following components web plate 1500mm 10mm. Flange angles ISA 150 mm 150 mm 10 mm on each flange If the endreaction produced by the applied loads is 1000 kN design the bearing stiffener forit. [16]

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Code No: Q0202/R05 Set No. 1

III B.Tech II Semester Supplementary Examinations, April 2010MANAGEMENT SCIENCE

( Common to Electrical & Electronic Engineering, Electronics &Communication Engineering, Chemical Engineering, Electronics & Control

Engineering, Electronics & Telematics, Electronics & Computer Engineeringand Instrumentation & Control Engineering)

Time: 3 hours Max Marks: 80Answer any FIVE Questions

All Questions carry equal marks

1. Describe the nature and importance of management in modern business context.[16]

2. Explain the following:

(a) Principle of Authority and Responsibility

(b) Principle of Unity of Command

(c) Principle of Span of Control

(d) Principle of Exception. [44]

3. State and explain various allowances to be considered while estimating the standardtime. [16]

4. Define materials management. What are its objectives? [16]

5. Explain different techniques of job evaluation. What are the advantages and dis-advantages of each technique. [16]

6. The normal cost and duration, crash cost and duration of activities of a project aregiven in table. If the overhead cost is.Rs.45 per day, determine the optimal costschedule for the project by drawing the project schedule Vs total cost. [16]

Activity Normal CrashTime(days) Cost(Rs) Time(days) Cost(Rs)

1-2 3 360 1 4402-3 4 240 2 3202-4 7 100 3 1603-4 5 80 2 180

7. Is it possible to simultaneously follow cost leadership and differentiation strategyfor a business unit? Give reasons for your answer. [16]

8. What is Supply Chain Management? Explain the advantages and disadvantages inSupply Chain Management. [16]

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1. State and describe the Fayols principles of management. [16]

2. What is types of committee organisation? Explain the basic principles of committee

organisation. [16]

3. Differentiate between process layout and product layout. [16]

4. Name the various types of records maintained in stores and explain them in brief.[16]

5. Which methods of training are most suited for managerial training, and why? [16]

6. Given below are the network data and the time cost trade of data for the project.[16]

Activity Predecessor Normal Crash

Days Cost Days CostA - 3 50 2 100B - 6 140 4 260C - 2 50 1 80D A 5 100 3 180E C 2 55 2 70F A 7 115 5 175G B,D 4 100 2 240

Assume Indirect Cost as Rs.700 per day.Determine:

(a) Normal project length

(b) Optimum length schedule also plot the cost-time relationship.

7. What is SWOT analysis? Describe the process of SWOT analysis with examples.[16]

8. Explain what you understand by management information system(MIS) and itssignificance ro the managerial decision making process. [16]

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1. Define management. State the important characteristics of management. [16]

2. What is committee organisation? Explain the advantages and disadvantages ofcommittee organisation. [16]

3. What are the objectives of method study? [16]

4. Define channels of distribution. State its functions. [16]

5. Discuss the objectives of Personnel Management. Describe the functional and Or-ganizational role of personnel manager in achieving the organizational goals. [16]

6. (a) What is PERT and what are the applications of PERT?

(b) Define the terms slack and Float. Illustrate [8+8]

7. How has information systems affected strategic decision making? What are theissues that have surfaced in the light of rapid changes in information technology?

[16]

8. Develop performance evaluation forms for the following:

(a) Production Manager

(b) Production supervisor

(c) Skilled worker in production department. [5+5+6]

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1. What do you mean by social responsibility of managers? How can social responsi-bility be made operational in an organisation? [16]

2. How does line and staff organisation structure differ from line organisation struc-ture? What are the benefits and limitations of line and staff organisation structure?

[16]

3. What is standard time? Describe briefly the steps involved in arriving at standardtime beginning with observed time. [16]

4. (a) State the benefits of modern marketing concept.

(b) Compare and contrast between selling concept and marketing concept. [8+8]

5. Explain some of the problems in interview as a method of selection? [16]

6. What do you mean by crashing a network? State step by step procedure of crashing.[16]

7. Describe the strategic management process. What mechanism would you suggestso that the right strategic plan is formulated? [16]

8. Explain the philosophy behind Total quality management customer satisfaction andcontinuous improvement. What are the objectives of TQM? [16]

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III B.Tech II Semester Supplementary Examinations, April 2010MACHINE TOOLS

( Common to Mechanical Engineering and Production Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

1. (a) A Mild Steel tube 42 mm outside diameter is turned on a lathe. The followingdata was observed. Rake angle 320, cutting speed 18m/min, feed 0.12 mm/rev,length of chip 52mm, cutting force 180 kg, feed force 60kg. Calculate chipthickness ratio, chip thickness, shear plane angle, chip velocity and coefficientof friction and power.

(b) When turning a 400 mm diameter on a lathe, the force exerted on the toolwas found to be 50 N. If the machine is running at a speed of 300 rpm findthe work alone per min. [8+8]

2. (a) Why are engine lathes called by that name?

(b) Discuss the specifications of lathe.

(c) What are the basic parts of an engine lathe? Discuss the function of headstock. [5+5+6]

3. (a) Can a three dimensional contour be produced on a planer? Justify.

(b) Describe the operation of cutting T slots on a shaper.

(c) Differentiate between forming and generating metal surface. [5+5+6]

4. (a) Sketch and describe in brief of a radial drilling machine.

(b) Name various work holding devices in drilling machine and describe any twowith sketch. [8+8]

5. (a) Distinguish between simple, compound and differential indexing.

(b) Distinguish peripheral milling and face milling. [8+8]

6. (a) What is the difference between rough grinding and precision grinding?

(b) Why is grinding so important in modern production? [8+8]

7. (a) Sketch and explain constructional features of honing tool.

(b) Write about various honing stones. [8+8]

8. What are the causes of errors in the design and operation of jigs and fixtures? andwhat measures should be taken to minimize the effects of the causes of error? [16]

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1. (a) What is the difference between chipping and spalling?

(b) Explain how tool life curves are established?

(c) Discuss working principle of strain gauge dynamometer. [5+5+6]

2. Name the different work holding devices or methods in capstan and turret lathes.

Describe one method with sketch on each lathe. [16]

3. (a) Differentiate between shaper, planer and slotter as regards relative tool andwork motions

(b) Classify and list shapers and planers. [8+8]

4. (a) What are different tool holding devices used in drilling machine? Brief them.

(b) What is spade drill? When is it used? Sketch one. [8+8]

5. (a) Why is milling a versatile machining process.

(b) What determines the number of teeth on a milling cutter? [8+8]

6. (a) What are the advantages and limitations of using centreless grinding?

(b) Describe the dressing and balancing requirements in grinding. [8+8]

7. (a) List out lapping parameters and explain them.

(b) Explain different broaching techniques. [8+8]

8. (a) Discuss the different types of locating pins.

(b) Briefly discuss about quick action clamps and nuts. [8+8]

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1. (a) A Mild Steel tube 42 mm outside diameter is turned on a lathe. The followingdata was observed. Rake angle 320, cutting speed 18m/min, feed 0.12 mm/rev,length of chip 52mm, cutting force 180 kg, feed force 60kg. Calculate chipthickness ratio, chip thickness, shear plane angle, chip velocity and coefficientof friction and power.

(b) When turning a 400 mm diameter on a lathe, the force exerted on the toolwas found to be 50 N. If the machine is running at a speed of 300 rpm findthe work alone per min. [8+8]




3. (a) Explain with neat sketch various mechanisms for table drive in shaper.

(b) Explain with neat sketch various work holding devices in planer indicating

special features if any. [8+8]

4. Explain the construction features of the following parts of drilling machine

(a) Base

(b) drill head

(c) spindle drive

(d) feed mechanisms. [44]

5. (a) With the help of a sketch, explain the working of a universal dividing head.

(b) Draw neat sketch of horizontal milling machine and label the parts. [8+8]

6. (a) With the help of sketches, describe:

i. External centreless grinding

ii. Internal centreless grinding.

(b) Describe about wheel wear and grinding ratio. [8+8]

7. Compare the broaching operation with that of any other metal machining operationfor the purpose of generating constant inside contours. Show sketches of someexample jobs made using broaching. [16]

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8. (a) Differentiate between a jig and a fixture.

(b) Name and explain the essential elements which make up a jig or a fixture.

[8+8]

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1. (a) What are throw away carbide tips? What are their advantages? What aretheir basic requirements?

(b) Discuss important properties of cutting tool. [8+8]




3. Name and sketch different parts of a shaper. Describe them in brief with respectto their functions. [16]

4. (a) Explain the terms with sketch trepanning, counter boring, and counter sinkingoperations.

(b) Discuss various types of drill bits with their features. [8+8]

5. (a) How do you determine the forces acting on a milling cutter?(b) Explain the procedure of milling a gear by formed - disc cutter. [8+8]

6. What are the various types of surface grinding machines? Describe their principle,advantages and limitations. [16]

7. (a) Write about the materials used for making broaching tools.

(b) With the help of neat sketches, explain horizontal pull broaching operationand the vertical push broaching operation. [8+8]

8. (a) List out the practical uses of jigs and fixtures.

(b) Give the complete classification of jigs. [8+8]

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III B.Tech II Semester Supplementary Examinations, April 2010UNIX PROGRAMMING

( Common to Computer Science & Engineering and InformationTechnology)



1. (a) Explain UNIX architecture.

(b) Write about telnet, rlogin commands. [8+8]

2. (a) Describe about cut, paste commands.

(b) Write a detail notes on sort command. [8+8]3. (a) Write a shell script which reports names and sizes of all files in a directory

(directory would be supplied as an argument to the shell script) whose size isexceeding 1000 bytes. The filename should be printed in descending order oftheir sizes. The total number of such files should also be reported.

(b) Write a C program to search for the word exam in a given file, using Com-mand line arguments. [8+8]

4. (a) Explain about the positional parameters in shell programming.

(b) Explain about the passing of command line arguments with an example.

(c) Explain about shell keywords. [4+8+4]5. (a) Write and explain about hard and symbolic links.. give an example for each.

(b) Explain about file descriptors & i-node? [8+8]

6. Write the syntax of following system calls explain each argument.

(a) wait

(b) waitpid

(c) exec

(d) system. [4+4+4+4]

7. Write a C program to use a function lock test to test for a lock. [16]

8. The syntax of msgget system call is int msgget(key t key, int flag)

(a) Explain type of key

(b) Explain what value it returns

(c) What is the use of flag [6+5+5]

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1. (a) Discuss the regular expression characters used by vi editor.

(b) Explain how vi editor can handle multiple files with examples. [8+8]

2. (a) cat command is the universal file viewer. Use cat to create a file, view a fileand to append file.

(b) Discuss in detail with all options copy Input- output command. [8+8]

3. (a) Write a shell script for the following task.The word unix is present in only some of the files supplied as arguments tothe shell script. Your shell script should searched each of these files in turnand stop at the first file that it encounters containing the word unix. Thisfilename should be displayed on the screen.

(b) Write a C program which receives file names as command line arguments anddisplay those filenames in ascending order according to their sizes. [8+8]

4. (a) List the rules for building shell variables.

(b) Explain about the different types of variables available in Unix.(c) Explain about the usage of shell variables with examples. [5+6+5]

5. Explain the differences between fgets, gets system call. [16]

6. Write the syntax of following functions explain each argument.

(a) abort

(b) sleep

(c) waitpid

(d) alarm. [16]

7. Briefly explain about malloc, free, realloc, calloc functions. [16]

8. The syntax of msgget system call is int msgget(key t key, int flag)

(a) Explain type of key

(b) Explain what value it returns

(c) What is the use of flag [6+5+5]

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1. (a) Name the three modes of vi and explain the method to switch from one modeto another.

(b) Describe security by file permissions. [9+7]

2. (a) Discuss Uniq command. Explain -u, -d, -c options with examples.(b) nl command numbers only logical lines. Substantiate. Compare it with pr

command. [8+8]

3. (a) Write a shell script which reports names and sizes of all files in a directory(directory would be supplied as an argument to the shell script) whose size isexceeding 1000 bytes. The filename should be printed in descending order oftheir sizes. The total number of such files should also be reported.

(b) Write a C program to search for the word exam in a given file, using Com-mand line arguments. [8+8]

4. (a) List the rules for building shell variables.(b) Explain about the different types of variables available in Unix.

(c) Explain about the usage of shell variables with examples. [5+6+5]

5. Write a C program which uses the following standard I/O system calls fopen, fclose,fseek, fget. [16]

6. (a) What is process control explain briefly.

(b) Write about zombie process. [16]

7. (a) Write a program to illustrate file locking.

(b) Write a program on simple memory allocation. [8+8]

8. Explain the following IPC methods briefly

(a) Message Queues

(b) Semaphores [8+8]

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1. (a) Discuss silent features of UNIX.

(b) Explain du, df commands with examples. [10+6]

2. (a) List the users logged in more than once using grep.

(b) Give expressions using grep to print.

i. lines containing printf in a file

ii. lines not containing printf in a file.

(c) Find out the frequency of occurances of each line in a file Explain. [5+6+5]

3. (a) Write a shell script which reports names and sizes of all files in a directory(directory would be supplied as an argument to the shell script) whose size isexceeding 1000 bytes. The filename should be printed in descending order oftheir sizes. The total number of such files should also be reported.

(b) Write a C program to search for the word exam in a given file, using Com-

mand line arguments. [8+8]

4. (a) What is a stream? Explain about the streams available in unix for input,output, error.

(b) What is redirection? Explain about input and output redirection. [8+8]

5. Write a C program to implement lseek function. [16]

6. Write the system calls for process termination in detail. [16]

7. Write about different Unix locking techniques. [16]

8. The syntax of msgsnd system call isint msgsnd(int msgfd, const void* msgptr, int length, int flag)

(a) Explain the pupose of msgfd, length, flag

(b) Explain the return type.

(c) What is msgptr [5+6+5]

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III B.Tech II Semester Supplementary Examinations, April 2010AUTOMATION OF INDUSTRIAL PROCESSES

(Electronics & Instrumentation Engineering)Time: 3 hours Max Marks: 80


1. (a) With neat block diagram, discuss in brief about SCADA.

(b) Draw the functional block diagram of Computer Control system and explainthe importance of each block in it? [8+8]

2. (a) Discuss about different communication protocols associated with Smart Sen-

sors?(b) Write the advantages of Smart Sensors. [8+8]

3. (a) What can be said about Controllability and Observability conditions if thetransfer function has a pole Zero cancellation?

(b) Find the controllability of the following system using KALMANs Test: [8+8]

X1(K+ 1)

X2(K+ 1)

X3(K+ 1)

=

0 1 0

0 0 1

6 11 6

X1(K)

X2(K)

X3(K)

+

0

0

1

U(K)

4. (a) What are the limitations of Z transforms? Define modified Z transform andobtain modified Z transform for G(S) = 1/(S+1)

(b) Write a short notes on Zero order Hold (ZOH) device. Also derive its transferfunction. [10+6]

5. Write short notes on the following:

(a) Dynamic feed forward controller.

(b) Static feed forward controller. [8+8]

6. (a) What is cascade control Scheme? Explain the same with the help of a neatsketch diagram?

(b) With suitable example, expalin the advantage of cascade control system.[8+8]


(a) Smith predictor algorithm.

(b) Analytical predictor algorithm. [8+8]


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(a) DCS Software configuration.

(b) DCS Communication. [8+8]

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1. (a) Explain how Analog Process Control loops cab be replaced by digital computercontrol loops?

(b) List out the advantages of DDC over conventional analog Controller [8+8]

2. (a) Describe the principle of a Smart Transmitter what and where does it trans-

mit discus some aspects of its developments in recent years?(b) Draw a block diagram to show how sensors interact with the automated man-

ufacturing process? Consider your own example. [8+8]

3. (a) What can be said about Controllability and Observability conditions if thetransfer function has a pole Zero cancellation?

(b) Find the controllability of the following system using KALMANs Test: [8+8]

X1(K+ 1)

X2(K+ 1)

X3(K+ 1)

=

0 1 0

0 0 1

6

11

6

X1(K)

X2(K)

X3(K)

+

0

0

1

U(K)




(a) Static FFC algorithm.

(b) Dead beat FFC algorithm. [8+8]


(a) Predictive control.

(b) Adaptive control. [8+8]


(a) Inferential control.

(b) Statistical process control. [8+8]

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(a) Programmable logic controllers (PLCs)

(b) Data Highway. [8+8]

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1. (a) Write a short notes on

i. Artificial Intelligence based system.

ii. Expert system controller.

(b) Discuss the hierarchy of DCS. [10+6]

2. (a) Discuss the functional requirements of a Distributed Process Control?

(b) Communication plays a Critical role in DCS. Discuss? [10+6]

3. (a) A discrete system is having the following transfer function,T(Z) = (Z2 +4Z+3)/ (Z3+3Z2+2Z)Obtain the discrete state model and discuss about its controllability and ob-servability

(b) Give the structure of a self tuning regulator(STR) and explain how the con-troller parameters, are set [8+8]

4. (a) What is Dead Beat Algorithm? Explain DB algorithm for a second order

system considering Dead time?

(b) What is the effect of sampling on the response of a closed loop system? Howdo you select the sampling rate? [10+6]

5. Explain the concept of Feed forward Controller with neat block diagram. [16]

6. Explain the dynamic response of cascade control system. How the over all systemdynamics improves with the use of secondary controller. [16]

7. How Smith predictor (SP) algorithm can be used to compensate dead time inprocesses. Explain with examples. [16]

8. Explain the architecture of a programmable logic controller (PLC) with a neatdiagram. [16]

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1. (a) With neat block diagram, discuss in brief about SCADA.

(b) Draw the functional block diagram of Computer Control system and explainthe importance of each block in it? [8+8]

2. (a) Describe the principle of a Smart Transmitter what and where does it trans-

mit discus some aspects of its developments in recent years?(b) Draw a block diagram to show how sensors interact with the automated man-

ufacturing process? Consider your own example. [8+8]

3. (a) A discrete system is having the following transfer function,T(Z) = (Z2 +4Z+3)/ (Z3+3Z2+2Z)Obtain the discrete state model and discuss about its controllability and ob-servability

(b) Give the structure of a self tuning regulator(STR) and explain how the con-troller parameters, are set [8+8]



5. Expalin any two types of feed forward controller (FFC) algorithms. [8+8]

6. What is adaptive control? Why is it needed in process control applications? Explainthe concept of adaptive control with a neat block diagram. [16]

7. What is Smith Predictor (SP) algorithm? Why and when is this technique used.Explain with a block diagram. [3+4+9]

8. What is a data highway? Discuss the advantage of using fiber optics as a datahighway. [6+10]

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III B.Tech II Semester Supplementary Examinations, April 2010BIO-MEDICAL SIGNAL PROCESSING

(Bio-Medical Engineering)Time: 3 hours Max Marks: 80


1. (a) Define density function of Rayleigh function.

(b) List out any two properties of distribution function

(c) Give the condition for the density function to be valid

(d) Explain the Law of addition of probability. [4+4+4+4]

2. (a) Explain the steps present in power spectral analysis of an ECG signal.

(b) Write short notes on Noise figure. [10+6]

3. (a) Draw the flow chart of AZTEC algorithm, explain Briefly

(b) Explain the limitations of AZTEC algorithm if it is applied on high frequencydata. [8+8]

4. (a) Explain the conduction system of heart with neat sketch

(b) Correlate the ECG signal with conduction system of Heart. [8+8]

5. What is the number of multiplications and additions are required for each iterationin the LMS algorithm given that number of weights are N? Explain with relevantequations. [8+8]

6. (a) What are the characterstics of signal and the noise to apply signal averaging?

(b) In signal averaging application signal amplitude is S mv and random noiseamplitude is N mv, after m repetations show that SNR

m=

m SNR. [6+10]

7. (a) Explain the neurological signals with neat sketches.

(b) Explain the different types of modeling methods. [8+8]

8. (a) Explain the method for modeling the signals with exponential components.

(b) Write the different types of signal modeling techniques. [8+8]

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1. Consider the probability density function f(x)=aeb|X| , where X is a random vari-able whose allowable values ranges from X= - to +

(a) Find the c d f F(x)

(b) Find the relation ship between a and b

(c) Find the probability that the outcome X lies between 1 and 2. [5+5+6]2. (a) Write the Properties of Covariance.

(b) Write the Properties of correlation coefficient. [8+8]

3. (a) Classify data compression techniques and list the features of each technique.

(b) Discuss any one type of lossy data compression technique with an example.[8+8]

4. (a) How do you detect missing QRS complex?

(b) How a right bundle block is detected using automated ECG analysis? [8+8]

5. Derive the optimal value of adaptive filter wopt and find the optimal weight wopt.[16]

R =

4 22 4

and r =

52

6. Apply the signal averaging technique on given data samples sets and draw the thewaveforms. [16]

d1= { 0, 1, 2, 3, 5, 3, 2, 1, 0, -1, -2, -3, -5, -3,-2, -1, 0, 0, 1, 2, 3, 5, 3, 2, 1, 0, -1, -2,-3, -5, -3,-2, -1, 0}.d2 ={ 0, 2, 4, 6, 7, 6, 4, 2, 0, 2, 4, 6, 7, 6, 4, 2, 0, 2, 4, 6, 7, 6, 4, 2, 0, 2, 4, 6, 7, 6,

4, 2, 0}.7. (a) Describe the characteristics of different stages of sleep in terms of frequency,

voltage levels.

(b) Explain the EEG rhythms and transients with waveforms. [10+6]

8. Mention the applications of pronys method and explain one of the applicationswith neat sketches. [16]

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1. (a) Give the classical and axiomatic definitions of probability.

(b) Define joint distribution function. Explain how marginal density functions arecomputed from given their joint distribution functions. [6+10]

2. (a) Define mean and variance of a random variable

(b) Write the Properties of mean and variance

(c) Prove that var(X+k)= var(X). [6+6+4]

3. (a) Explain the principle of operation of the turning point algorithm.

(b) Draw the flow chart for turning point Algorithm. [8+8]

4. (a) Describe Brady cardia and trachy cardia.

(b) Explain the Identification process with criteria for alarm for brady cardia andtrachy cardia. [6+10]

5. Derive the optimal value of adaptive filter wopt and find the optimal weight wopt.[16]

R =

4 22 4

and r =

52

6. In a signal averaging application, the signal caused by stimulus and noise are slightlycorrelated the the frequency spectrum of the signal and noise overlap. averaging100 responses will improve the S/N by what factor. [16]

7. (a) Explain the importance of AR method to analyze the EEG signals.

(b) Write the characteristics of the k-complex and sleep stages in EEG signal.[10+6]

8. (a) Why pronys method suggested for modeling evoked potentials?

(b) Explain the limitations of fast fourier transform. [10+6]

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1. (a) Define axiomatic definition of probability

(b) Give the classification of Random variables

(c) State total probability theorem

(d) Define density function of Gaussian function. [4+4+4+4]

2. (a) Write the Properties of Covariance.(b) Write the Properties of correlation coefficient. [8+8]

3. (a) What is the need for compression of medical data? Briefly explain with anexample?

(b) What are the factors that influence the performance of a data reduction algo-rithm?

(c) Define percent root-mean-square-difference (PRD) with respect to data com-pression and give an expression for PRD. [5+5+6]

4. (a) Describe Brady cardia and trachy cardia.

(b) Explain the Identification process with criteria for alarm for brady cardia andtrachy cardia. [6+10]

5. Adaptive linear combiner characterized by following E[r2(n)]=1, E[x2(n)]=4 , E[x(n)r(n)]=1where x(n) is primary signal and r(n) is reference signal.

(a) Determine the optimum weight (Wopt).

(b) Mean square error. [8+8]

6. According to second order linear prediction theory

(a) Derive the linear prediction parameters.

(b) Derive the Minimum mean square error. [8+8]7. (a) Explain the neurological signals with neat sketches.

(b) Explain the different types of modeling methods. [8+8]

8. (a) Explain the acquisition procedure of digital biological signal with one example.

(b) During acquisition the signal frequency is 100Hz.what would be the samplingfrequency. Expalin in detail. [8+8]

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III B.Tech II Semester Supplementary Examinations, April 2010AEROSPACE PROPULSION-II

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


1. With the help of a neat sketch indicate the velocity triangles at nozzle inlet, nozzleexit and rotor exit stations of a single stage reaction type turbine and obtain anexpression for the stage work output. [16]

2. What is an equilibrium diagram and explain with neat sketches the method offinding the equilibrium points. [16]

3. Explain the basic concepts of thrust augmentation through after burning concept,and discuss in detail about the associated pressure losses. [16]

4. (a) What are the various problems that come across while designing a supersonicdiffuser for a ramjet engine and how these problems can be reduced/eliminated?

(b) Write a detailed note on variable geometry ramjet engine. [8+8]

5. (a) Explain the following with respect to a rocket motor:

i. Impulse to weight ratio

ii. Total impulse.

(b) Differentiate between a rocket and a missile. 4+4+8]

6. (a) Explain the salient features of a solid rocket motor with the help of a suitablediagram.

(b) Explain the following with respect to the solid propellant rocket motor:

i. Relationship between the burning rate and chamber pressure.

ii. Relationship between the burning rate and temperature. [8+4+4]

7. What are the various types of propellant tanks in the case of liquid rocket mo-tors? Explain the role, desirable characteristics, advantages and disadvantages ofpropellant tanks. [16]

8. Mention the various advanced propulsion systems and describe the principle ofelectric propulsion. [16]

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1. The following particulars of a single stage turbine of free vortex is given below:Total head inlet pressure = 4.6 barTotal head inlet temperature = 7000 CStatic head pressure at mean radius = 1.6 barMean blade diameter/blade height = 10

Nozzle loss coefficient = 0.10Nozzle outlet angle = 280

Determine the gas temperature, velocities, and discharge angle at the blade rootand tip radii. Take Cp = 1.147, = 1.33 and mass flow rate = 20 kgs1. [16]

2. Write a short note on the following:

(a) Matching of compressor and turbine

(b) Blade cooling methods. [8+8]


4. What are the various assumptions made while analyzing an ideal ramjet engine?Explain the conditions occurring at the exit of diffuser section and combustionchamber.

[16]

5. (a) What is rocket propulsion? Why a rocket is called a non breathing engine?

(b) Describe important applications of rocket propulsion. [8+8]

6. Briefly explain about the motor casing of solid propellant rocket and the factorsconsidered for its design. [16]

7. Explain briefly the components of a typical thrust chamber with the help of adiagram. What are the types of injectors used in the thrust chamber? [16]

8. Explain the different types of electric propulsion devices. What are the typicalapplications of electric propulsion? [16]

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1. (a) Write a detailed note on conventional blading of an axial flow type turbine.

(b) Write a detailed note on the influence of aspect ratio in the establishment ofpitch and chord values for the conventional blade. [8+8]

2. Write a detailed note on the practical air cooled gas turbine blades employing

forging, fabrication, and cast techniques. [16]


4. With the help of neat sketches, explain the sub-critical, critical, and super-criticalconditions under which a ramjet engine can operate. [16]

5. (a) Derive the equation for thrust of a rocket motor.

(b) Differentiae between the rocket and missile. [8+8]

6. Explain the following with respect to solid propellants:

(a) Fuels

(b) Formulations and Ingredients

(c) Toxicity

(d) Particle size parameters. [4+4+4+4]

7. Explain the various liquid fuels for liquid rocket motors. Write down their advan-tages, disadvantages and area of application. [16]

8. What are the requirements of the advanced propulsion systems for space applica-tions? Explain the limitations of such propulsion systems. [16]

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1. In a single-stage impulse turbine the nozzle discharges the fluid on to the bladesat an angle of 250 to the plane of rotation and the fluid leaves the blades with anabsolute velocity of 300ms1 at an angle of 1200 to the direction of motion of theblades. If the blades have an equal inlet and outlet angles and there is no axialthrust, estimate the blade angle, power produced per kgs1 of the fluid. [16]

2. (a) Explain the necessity of cooling the turbine blades.

(b) Give an account of practical air-cooled turbine blades. [8+8]

3. Write a detailed note on the following thrust vector control methods:

(a) Jet vanes

(b) Jetavator

(c) Spoilers

(d) Ball and socket type nozzle. [4+4+4+4]

4. (a) Explain the salient applications of SCRAMJET.(b) An ideal ramjet engine operates with isentropic diffusion, without any total

pressure reduction in the engine, a choked isentropic converging nozzle and k= 1.4, constant. Calculate the values of effective jet Mach number (Mj) forM0 = 1.0, 1.4, 1.8, 2.2, and infinity. [6+10]

5. (a) Explain the following with respect to the motor:

i. Impulse to weight ratio

ii. Total impulse.

(b) An ideal rocket chamber is to operate at sea level using propellant whose com-bustion products have a specific ratio of 1.30 Determine the required chamberpressure and nozzle area ratio between throat and exit if the nozzle exit Machnumber is 2.4 the nozzle inlet Mach number may be considered to be unity.

[4+4+8]

6. Explain the following with respect to solid propellants:

(a) Fuels

(b) Formulations and Ingredients

(c) Toxicity

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(d) Particle size parameters. [4+4+4+4]

7. Write short notes on the following with respect to the liquid propellant rocket

motor:

(a) Gelled propellants

(b) Cold gas propellants

(c) Safety and environmental concerns regarding liquid rocket motors.

(d) Regenerative cooling. [4+4+4+4]

8. What are the requirements of the advanced propulsion systems for space applica-tions? Explain the limitations of such propulsion systems. [16]

bt32r05 part 4 rahul

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