Hall Ticket No: Question Paper Code: A3014 (AUTONOMOUS) B ...

Hall Ticket No: Question Paper Code: A3014

(AUTONOMOUS) B. Tech VIII Semester Regular Examinations, April - 2019

(Regulations: VCE-R15)

MANAGEMENT SCIENCE

(Common to Computer Science and Engineering, Information Technology, Electronics and Communication Engineering, Electrical and Electronics Engineering & Civil Engineering)

Date: 18 April, 2019 AN Time: 3 hours Max Marks: 75

Answer ONE question from each Unit All Questions Carry Equal Marks

Unit – I

1. a) “Two factor theory is superior to need theory” do you agree. In this context discuss two factor theory in brief.

8M

b) Discuss various factors affecting span of control.

7M

2. a) Taylor is known as father of scientific management. Analysis his contributions towards management.

8M

b) Explain the functions of management in brief.

7M

Unit – II

3. a) While designing the plant layout, what are the principles to be followed? 8M b) What is method study? Point out the objectives of Method Study.

7M

4. a) Define work measurement. List the techniques of work measurement. Explain any two of them.

8M

b) What is plant layout? Explain any two of its types.

7M

Unit – III

5. a) Analyze the Deming’s contribution towards quality. 8M b) Discuss the various functions of material management. 7M

6.

It is necessary to control the diameter of balls by the X chart with a sample size of four. Each sample consists of four balls. The diameters of all the balls in 24 samples are given in the table below. Find the control limits and draw a control chart showing the points on it. (A2=0.729).

Sample No. Diameter of

X1 R values

Sample No. Diameter of

X1 R values

1 30.39 30.41 13 30.43 30.41

2 30.40 30.40 14 30.41 30.40

3 30.41 30.38 15 30.39 30.38

4 30.42 30.39 16 30.42 30.39

5 30.44 30.38 17 30.37 30.40

6 30.42 30.41 18 30.40 30.40

7 30.42 30.42 19 30.38 30.41

8 30.41 30.40 20 30.40 30.40

9 30.41 30.41 21 30.41 30.42

10 30.38 30.43 22 30.39 30.37

11 30.41 30.43 23 30.41 30.39

12 30.42 30.40 24 30.40 30.41

15M

Cont…2

:: 2 ::

Unit – IV

7. a) Discuss any four on the job training methods with applications in the industry. 8M b) Do you think performance appraisal is on regular basis? In this context explain the steps

in performance appraisal.

7M

8. a) “Right employee is an asset while wrong employee is a liability” in this context explain selection techniques.

8M

b) “Employee turnover is the problem faced by many companies” in this context explain the different steps in manpower planning.

7M

Unit – V

9. a) Explain about project crashing with suitable example. 7M b) Explain step by step procedure of Network analysis of any one of its type.

8M

10. An R&D project has a list of tasks to be performed whose time estimates are given in the table as follows:

Activity i j

Activity name T0 tm

(in days) tp

1-2 A 4 6 8

1-3 B 2 3 10

1-4 C 6 8 16

2-4 D 1 2 3

3-4 E 6 7 8

3-5 F 6 7 14

4-6 G 3 5 7

4-7 H 4 11 12

5-7 I 2 4 6

6-7 J 2 9 10

i. Draw the project network ii. Find the critical path iii. Find the probability that the project is completed in 19 days.

15M




REFRIGERATION AND AIR CONDITIONING (Mechanical Engineering)


Answer ONE question from each Unit All Questions carry equal marks

Unit – I

1. a) Define the following: i. Refrigerating effect ii. C.O.P iii. Ton of refrigeration iv. Refrigerant

8M

b) An ice plant produces 1000kg of ice per hour at -10˚C from water available at 30˚C. Taking latent heat of (hfs) of ice and specific heat of ice below 0˚C as 335kJ/kg and 2.09kJ/kg˚C respectively obtain refrigeration effect, tonnage and C.O.P for the power consumption of 40 kW.

7M

2. a) Derive the C.O.P. of Bell Coleman cycle with the help of TS diagram. 7M b) A refrigerator is working on Bell Coleman cycle. Air at 1 and -7˚C is compressed at the

compressor inlet to 5bar and then cooled at constant pressure in a cooler to 27˚C the isentropic efficiency of compressor is 80%. Air is then expanded to a pressure of 1 bar using an 85% efficient expander. Determine capacity of refrigerator if air is circulated at 1kg/sec, power input to compressor and C.O.P of the cycle.

8M

Unit – II

3. a) With neat sketch explain vapour absorption refrigeration system. 8M b) List the advantages and disadvantages of vapour compression refrigeration system.

7M

4. a) A refrigerator using Freon -12 has an evaporator saturation temperature of 248K and a condenser saturation temperature of 308K. The vapour is dry saturated before the beginning of compression and has a temperature of 338K after compression to the condenser pressure. Calculate work done per kW of refrigeration and C.O.P of the refrigerator.

7M

b) Describe three fluid absorption systems with help of neat diagram.

8M

Unit – III

5. a) Explain the working principle of automatic expansion device with a neat sketch. 8M b) List out the desirable properties of refrigerants.

7M

6. a) Sketch and explain Thermostatic Expansion valve. 8M

b) Describe the working principle of thermoelectric refrigerator with a neat sketch.

7M

Unit – IV

7. a) Obtain an expression for specific humidity in terms of vapour pressure and barometric pressure.

8M

b) Room contains humid air at dry bulb temperature is 288.15K and temperature difference between dry and wet bulb is 6K. Calculate: i. Relative humidity ii. Specific humidity iii. Dew point for standard barometric pressure

7M

Cont…2

::2::

8. a) Describe the following:

i. Effective room sensible heat factor line ii. Room sensible heat factor line iii. Grand sensible heat factor line

8M

b) A room has a sensible heat gain of 24kW and a latent heat gain of 5.2kW and it has to be maintained at 260C DBT and 50% relative humidity. 180m3/min of air is delivered to the room. Determine the state of supply air.

7M

Unit – V

9. a) Sketch and explain comfort air conditioning system. 8M b) Mention and explain different types of air filters.

7M

10. a) Sketch and explain Air to liquid design heat pump circuit. 8M b) Define the term effective temperature; describe the factors which affect it. 7M




NATIONAL SERVICE SCHEME (Common to Computer Science and Engineering & Electrical and Electronics Engineering)



Unit – I

1. a) What are the aims and objectives of NSS? 8M b) Discuss about NSS day, motto and badge.

7M

2. a) Interpret NSS organizational structure at University level. 7M b) Identify the roles and responsibilities of NSS functionaries at State level.

8M

Unit – II

3. a) Briefly explain the Adoption of Slums under NSS. 5M b) Explain the modalities for organizing a NSS special camping programme at National level.

List the advantages of organizing a special camping programme.

10M

4. a) Briefly explain the financial pattern of NSS programmes. 8M b) Highlight the regular activities of NSS.

7M

Unit – III

5. a) Identify and explain issues of today’s youth. 8M b) Outline the opportunities for youth to contribute in nation building.

7M

6. a) How youth can become an agent of social change? Justify your answer. 8M b) Explain work participation in different categories of youth.

7M

Unit – IV

7. a) Discuss “Community Mobilization” and the relevance of mapping of community stakeholders.

9M

b) Briefly explain “Youth-Adult partnership” and the factors affecting this.

6M

8. a) Briefly explain the Social-Ecological model. 9M b) List the barriers to building effective youth-adult partnerships.

6M

Unit – V

9. a) What is Shramdan? Briefly explain one incident of Shramdan you were involved in. 7M b) Explain briefly with two examples about Indian tradition of Volunteerism.

8M

10. a) Explain briefly Motivation and Constraints of volunteerism in a general context. How would you see it in the context of NSS activities?

8M

b) Discuss the needs and importance of volunteerism in NSS. 7M




DISASTER MANAGEMENT

(Information Technology)



Unit – I

1. a) Define hazard. Mention the various hazards affecting the environment. Explain in brief. 7M b) List out characteristics of hazardous materials with suitable examples.

8M

2. a) Define disaster. Write a note on Bhopal Gas Tragedy and its consequences. 7M b) Discuss Minamata disease, diseases caused by pollution and Chernobyl disaster in detail.

8M

Unit – II

3. a) What are the differences between natural hazards and natural disasters? 8M b) Mention the different types of man induced disasters and explain them in detail.

7M

4. a) What do you understand by the word Planetary hazards? Explain briefly with examples. 7M b) What are the differences between endogenous and exogenous hazards?

8M

Unit – III

5. a) Explain the impact of volcanic eruptions on environment. 7M b) Why landslides takes place? What are the consequences of landslides?

8M

6. a) Mention the various causes of landslides and briefly explain them. 8M b) Explain the various effects of earthquakes.

7M

Unit – IV

7. a) Explain drought disaster challenges and mitigation in India. 8M b) Write a note on atmospheric hazards.

7M

8. a) Discus the causes and effects of population explosion. 8M b) What causes floods? Mention any three flood control measures to reduce the impact of

flood disaster. 7M

Unit – V

9. a) What are the pre-disaster measures are taken to prevent loss of life due to natural hazard?

7M

b) Discuss the terms Prevention and Preparedness activities in pre-disaster stage.

8M

10. a) Illustrate the role of human beings to reduce natural and manmade disasters. 8M

b) Write a note on emergency stage in disaster management. 7M




OPERATING SYSTEM FUNDAMENTALS

(Electronics and Communication Engineering)



Unit – I

1. a) Define operating system. List the various operating system services. Explain goals of an operating system.

7M

b) Define the essential properties of the following operating system: i. Time sharing operating system ii. Batch operating system iii. Real-time operating system iv. Distributed operating system

8M

2. a) Distinguish between Multi-tasking and Multi-programming systems. Explain the features of multi-processor systems.

8M

b) What is a system call? Illustrate about any three types of system calls with its operations.

7M

Unit – II

3. a) State Producer Consumer problem and develop pseudo code for the same. 8M

b) What is a scheduler? How many types of schedulers exist in operating system? Explain.

7M

4. a) What is IPC? Explain its types. 5M

b) Consider the following set of processes with the length of CPU burst time and arrival time given in minutes. Illustrate the execution of the processes using Round Robin algorithm. Draw Gant chart. Also calculate average waiting time and turnaround time. Time quantum is 2ms:

Process Id Arrival time Burst time

P1 0 5

P2 1 3

P3 2 1

P4 3 2

P5 4 3

10M

Unit – III 5. a) Differentiate between internal and external fragmentation. 8M

b) What do you mean by page faults? When does a page fault occur? Describe the action taken by the operating system when a page fault occurs.

7M

6. a) Consider the following snapshot of a system:

Process Max Allocation Available

R1 R2 R3 R1 R2 R3 R1 R2 R3

P1 7 5 3 0 1 0 3 3 4

P2 3 2 2 2 0 0

P3 9 0 2 3 0 2

P4 2 2 2 2 1 1

i. Find out need matrix ii. List all the four possible safe sequences

8M

Cont…2

:: 2 ::

b) In the IBM/370, memory protection is provided through the use of keys. A key is a 4-bit

quantity. Each 2K block of memory has a key (the storage key) associated with it. The CPU also has a key (the protection key) associated with it. A store operation is allowed only if both keys are equal, or if either is zero. Which of the following memory-management schemes could be used successfully with this hardware: i. Bare machine ii. Single-user system iii. Multiprogramming with a fixed number of processes iv. Multiprogramming with a variable number of processes v. Paging vi. Segmentation

7M

Unit – IV

7. a) What are the different operations performed on the files? Explain in details. 8M b) Compare the different file access methods in detail.

7M

8. a) Explain two level directory and tree level directory with a neat diagram. 10M b) Illustrate importance of the stable storage implementation in operating system. Also list

out the possible three outcomes of disk write.

5M

Unit – V

9. a) Discuss various types of program threats and system threats. 8M b) How access-matrix model of protection can be implemented? Discuss in detail.

7M

10. a) What are the different user authentication methods? Explain any two of them. 8M b) Discuss the security measures taken at physical, human, OS network levels to protect a

system. 7M




ENTREPRENEURSHIP DEVELOPMENT

(Electrical and Electronics Engineering)



Unit – I

1. a) What is an Entrepreneurship? What is the importance of entrepreneurship for developing countries?

8M

b) What are the functions of entrepreneur? Explain.

7M

2. a) List and explain the characteristics of entrepreneurship. 8M b) With an example explain, the barriers of entrepreneurship.

7M

Unit – II

3. a) Explain the role of IDBI in Entrepreneurship development. 8M b) What is SIDBI? Explain its capabilities to help in entrepreneurship culture in India.

7M

4. a) What are the supports offered by Telangana hub towards entrepreneurship? 8M b) Recognize the efforts of NIESBUD in promoting medium scale enterprise.

7M

Unit – III

5. a) Explain the role and importance of women entrepreneurship. 8M b) List and explain the problems of women entrepreneurs.

7M

6. a) Discuss the functions of women entrepreneurs. 8M b) Discuss the women entrepreneurship development in India.

7M

Unit – IV

7. a) List and explain the elements feasibility plan of project management. 8M b) Describe the importance of project financing.

7M

8. a) What are the elements of project life cycle explain any two stages with suitable examples?

10M

b) What is the role of financial planning and budgeting in entrepreneurship?

5M

Unit – V

9. a) Discuss the importance of Feedback and performance of trainees. 8M b) Discuss PMKVY and TASK.

7M

10. a) Explain how training is an effective instrument which can be applied to entrepreneurship in developing their skills.

8M

b) Discuss the significance of entrepreneurial training. 7M




HUMAN RESOURCE MANAGEMENT (Mechanical Engineering)



Unit – I

1. a) What are the objectives of HRM? Highlight the importance of each objective. 8M b) What are today’s most common human resource challenges faced by organizations?

7M

2. a) Define HRM policy with an example. Explain the advantages of HRM. 8M b) List the factors which affect HRP and explain how to overcome these factors.

7M

Unit – II

3. a) What do you mean by Job analysis? Explain the process of Job analysis. 9M b) Point out the Internal sources of recruitment. State its benefits and limitations.

6M

4. a) What is the difference between Job Description and Job Specification? 5M b) Explain the recruitment process.

10M

Unit – III

5. a) Explain briefly the importance of career planning with examples. 8M b) Compare and contrast different types of appraisal. Briefly explain.

7M

6. a) List and explain the process of Executive Development. 8M b) How critical is the process of training an employee? Illustrate with an example.

7M

Unit – IV

7. a) List the different components of wages. Explain with illustrations. 8M b) Describe the factors influencing wage fixation with suitable examples.

7M

8. a) What are the different types of payment methods? Discuss their merits. 8M b) Examine the principles of fringe benefits. Justify your answer.

7M

Unit – V

9. a) Define Industrial relation. State its components and explain. 7M b) What is grievance procedure? Bring out its merits and demerits.

8M

10. a) Explain the process of Collective Bargaining. 8M b) Define Trade Union. Why do employees join unions? 7M




SOLAR ENERGY AND APPLICATIONS (Common to Mechanical Engineering & Civil Engineering)



Unit – I

1. a) Explain about Spectral distribution of extraterrestrial solar radiation with a neat sketch. 7M

b) With a neat sketch, explain the working of Solar Pyrheliometer used for solar radiation measurement.

8M

2. a) Using a sketch, define the following: i. Solar azimuth angle ii. Solar altitude angle iii. Zenith angle

7M

b) Schematically represent the mechanism of absorption and scattering of solar radiation as it passes through the earth’s atmosphere.

8M

Unit – II

3. a) With a neat sketch, explain the working of a closed loop forced circulation solar water heating system.

7M

b) Define the following: i. Aperture ii. Concentration ratio iii. Intercept factor iv. Acceptance angle

8M

4. a) List and explain the effects of various parameters on the performance of a Flat plate collector.

7M

b) Explain with a neat sketch the principle of working of a typical solar still (distillation unit).

8M

Unit – III

5. a) Sketch and explain the I-V characteristics of dark and illuminated PN junction. 7M

b) With relevant sketches, explain the position of Fermi level in intrinsic semiconductor p-type and n-type.

8M

6. a) Explain the equivalent circuit of a solar PV cell for ideal and practical cases. 7M

b) Graphically represent and explain the variation of Insolation and Temperature on the characteristics of a solar cell.

8M

Unit – IV

7. a) List the various applications of a Solar PV unit. Explain any one of them. 7M b) With a block diagram, explain the manufacturing process for a single crystal silicon solar

cell.

8M

8. a) Explain with a circuit diagram, a general type of inverter suitable for Solar PV system utility.

7M

b) A PV system for supplying drinking water is installed in a village. The water is pumped by the solar cell array of 24 modules of cell size 12.5cmX12.5cm each, from a depth of 48m. The inverter efficiency is 85% and the pump-motorset efficiency is 45%. Calculate the water discharge rate at noon when global radiation incident normally on the cells is 945W/m2. Assume the conversion efficiency of 12.5% based on cell area and density of water to be 996kg/m3.

8M

Cont…2

:: 2 ::

Unit – V

9. a) Sketch and explain horizontal axis single blade wind mill. 8M b) A 2KW PV rooftop plant costs Rs.2,00,000 and has a useful life of 25 Years. The annual

average maintenance cost is 2% of the capital cost and the discount rate is 10%. Calculate the unit cost of a solar PV generated electricity if it supplies a load of 25% of its power rating for 10 hours daily.

7M

10. a) Explain the power generated and wind speed curve. 7M b) Explain the two methods for storing thermal energy. 8M




SOFTWARE PROJECT MANAGEMENT (Common to Computer Science and Engineering & Information Technology)



Unit – I

1. a) Describe the five improvements to the basic waterfall process that would eliminate development risks.

10M

b) Identify the important trends in improving software economics.

5M

2. a) Describe top five principles of a modern software management. 10M b) Identify any five principles of conventional software engineering.

5M

Unit – II

3. a) Explain Primary objectives, essential activities and primary evaluation criteria of inception phase.

8M

b) Explain the typical software development plan outline.

7M

4. a) Explain Primary objectives, essential activities and primary evaluation criteria of Elaboration phase.

8M

b) With diagram, explain the life-cycle evolution of the artifact sets.

7M

Unit – III

5. a) What are the seven top-level workflows of software process? Explain. 8M b) Explain the details of iteration workflows.

7M

6. a) With a neat diagram, explain the typical minor milestones in the life cycle of iteration. 8M b) Explain the cost and scheduled estimating process.

7M

Unit – IV

7. a) Provide a brief derivation and detailed description of the seven core metrics. 10M b) Mention the basic characteristics of a good pragmatic software metrics.

5M

8. a) Explain briefly two primary dimensions of process variability. 10M b) Identify five differences in artifacts between small and large projects.

5M

Unit – V

9. a) Explain the top ten software management principles. 8M b) Discuss the results of major milestones in a modern process of project management.

7M

10. a) Explain the next generation cost models for project management. 8M b) Describe in detail about the Continuous integration of project management. 7M




WIRELESS COMMUNICATIONS AND NETWORKS

(Electronics and Communication Engineering)



Unit – I

1. a) Differentiate between FDD and TDD with relevant examples. Define the following terms: i. Base station ii. Control channel iii. Half duplex systems iv. Roamer

8M

b) Examine the salient features of WLL and LMDS.

7M

2. a) Discuss the similarities and differences between a conventional mobile radio system and a cellular radio system. What are the advantages and disadvantages of each system? Which system could support a larger number of users for a given frequency allocation? Why?

8M

b) Illustrate the features of the popular 2G standards and compare the key specifications of these 2G technologies.

7M

Unit – II

3. a) Examine the features, functionalities and architecture of First generation Wireless Networks showing the block diagram of a cellular radio network.

6M

b) I. Illustrate the TDMA frame structure and derive an expression for the efficiency of TDMA and number of channels in TDMA

II. If GSM uses a frame structure where each frame consists of eight time slots and each time slot contains 156.25 bits and data is transmitted at 270.833kbps in the channel, find: i. The time duration of a bit ii. The time duration of a slot iii. The time duration of a frame iv. How long must a user occupying a single time slot wait between two successive

transmissions

9M

4. a) Define channel capacity. Derive an expression for the radio capacity of cellular system. 7M

b) Illustrate the features, architecture, Network part, user part and services of SS7 signaling protocol.

8M

Unit – III

5. a) List the three capabilities of Mobile IP and explain their features and functionalities. 8M b) Examine the important requirements of Wireless LANs and mention the different

categories of Wireless LANs.

7M

6. a) Illustrate the features and protocol stack of Wireless Transport Layer Security. Also explain the different steps of WTLS Record protocol with a neat figure.

8M

b) Examine the configuration and transmission issues of Spread Spectrum LANs. Also differentiate between Licensed and unlicensed Narrowband RF highlighting their advantages and drawbacks.

7M

Cont…2

:: 2 ::

Unit – IV

7. a) Illustrate the architecture and the various services of IEEE 802.11 with relevant figure. 8M b) Sketch a neat figure of the Bluetooth protocol stack and explain its protocol architecture

and usage models.

7M

8. a) Examine the features of the three physical media of the IEEE 802.11 physical layer. Also illustrate the physical layer frame structure of IEEE 802 Physical Layer Protocol Data Units.

8M

b) Illustrate the different channels, packet formats and signaling commands of L2CAP.

7M

Unit – V

9. a) Illustrate the physical architecture of CDPD with a neat figure of its physical elements. Also explain the mobility management in CDPD with relevant figure.

8M

b) What is Wireless ATM? Illustrate the architecture of a WATM network and protocol entities in an ATM environment that supports wireless mobility with relevant figures.

7M

10. a) What is SMS? Illustrate the services, operations and reference & layered protocol architecture for SMS with a neat figure.

8M

b) Examine the architecture, PHY and protocol stack functionalities of HIPERLAN-2 with relevant figures.

7M




DSP PROCESSORS AND ARCHITECTURES (Electronics and Communication Engineering)



Unit – I

1. a) Explain the decimation and interpolation process with an example. 7M b) Explain the operation used in DSP to increase the sampling rate. The sequence

0,2,4,6,8x n is interpolated using interpolation sequence 1 12 2,1,bk and the

interpolation factor is 2.find the interpolated sequence y m .

8M

2. a) Explain the issues to be considered in designing and implementing a DSP system, with the help of a neat block diagram.

7M

b) The sequence 0,3,6,9x n is interpolated using interpolation sequence

1 2 2 13 3 3 3, ,1, ,bk and the interpolation factor of 3. Find the interpolated sequence

y m .

8M

Unit – II

3. a) Illustrate the different formats used for Signals and coefficients in DSP systems with relevant equations and examples.

8M

b) i. Explain the need and working of a MAC unit in DSP applications with the help of its block diagram. Discuss how overflow and underflow can be overcome while performing multiplications

ii. How many bits should the accumulator require to find the sum of 128 numbers each represented by 16 bits, so that the sum can be computed without the occurrence of overflow error or loss of accuracy

7M

4. a) Examine the various DSP computational errors with relevant expressions and examples. Also explain how these errors can be solved.

8M

b) Explain the implementation of an 8-tap FIR filter given by y n h i x n i using:

i. Pipelined implementation using Eight Multipliers and eight accumulators ii. Parallel implementation using two MAC units

7M

Unit – III

5. a) Define an Interrupt. Explain the different interrupt sources, Interrupt vectors, their priorities and Interrupt latency.

7M

b) Explain the working of the following two peripherals of TMS32cC54xx processor with the help of a neat figure: i. Host Port Interface(HPI) and its various signals ii. Hardware timer

8M

6. a) Examine the instruction set of TMS320C54xx processors. List the various program control operation instructions.

8M

b) Explain the following for a TMS320C54xx processor: i. Direct Addressing mode ii. MAC instruction

7M

Cont…2

::2::

Unit – IV

7. a) With help of block diagram and MATLAB/assembly language program describe the implementation of FIR filter.

8M

b) Determine the following for a 128-point FFT computation: i. Number of stages ii. Number of Butterflies in each stage iii. Number of butterflies needed for the entire computation iv. Number of butterflies that need no twiddle factors v. Number of butterflies that require real twiddle factors vi. Number of butterflies that require complex twiddle factors

7M

8. a) With the help of the implementation structure, explain the FFT algorithm for DIT-FFT computation.

8M

b) Write a subroutine to implement two point butterfly structure and explain the same.

7M

Unit – V

9. a) List and explain the various external bus interfacing signals. Design an interface to connect a 64K x 16 flash memory to a TMS320C54xx device. The processor address bus to be used is A0-A15.

8M

b) Draw the block diagram for the PCM3002 CODEC and explain how the PCM3002 is interfaced to the TMS 320C5416 in the DSK using suitable block diagram.

7M

10. a) Explain how Interrupts are handled by TMS320X54xx processors using appropriate flowchart.

8M

b) With the help of a block diagram explain the McBSP of C54xx processor. 7M




POWER SYSTEM TRANSIENTS

(Electrical and Electronics Engineering)



Unit – I

1. a) List out the sources of transients and explain their occurrence in power systems in brief. 7M b) Explain impulsive and oscillatory transients in detail.

8M

2. a) Identify why transient study is important for a power system engineer for planning. 7M b) Explain the effects of transients on power system.

8M

Unit – II

3. a) Analyze the effect of source regulation and multiple strikes in capacitor switching. 8M b) Deduce the effect of switching of circuit with two natural frequencies.

7M

4. a) Explain the transient recovery voltage across the circuit breaker after the interruption of fault current with relevant circuit and waveforms.

8M

b) Explain the voltage and current relationships in ferroresonant circuit with relevant representations.

7M

Unit – III

5. a) List out and explain the causes of over voltages in power system. 7M b) Develop the mathematical model for lightning and also explain its influence on power

systems.

8M

6. a) What is meant by tower footing resistance? Also explain back flashover. 7M b) Using Simpson’s theory and Reynolds’s Mason theory to explain the phenomenon of

lightning.

8M

Unit – IV

7. a) Explain clearly the reflection and refraction of travelling waves. 7M b) Explain about the behavior of travelling waves when the line is:

i. Terminated by short circuit ii. Terminated by open circuit

8M

8. a) For a single transmission line terminated in impedance, explain the lattice diagram for the above case.

7M

b) Develop the transient response of systems with series and shunt distributed lines.

8M

Unit – V

9. a) Examine the effects of switching surges in an integrated power system. 7M b) Explain the network modeling for EMTP analysis.

8M

10. a) Develop an expression for reflection and transmission coefficients in an integrated power system.

7M

b) Analyze the occurrence and effects of kilometric fault in a power system. 8M




VIBRATIONS AND STRUCTURAL DYNAMICS (Mechanical Engineering)



Unit – I

1. a) Setup the differential equation for a spring mass damper system and obtain the complete solution for the under damped conditions.

8M

b) A cylinder of mass “m” and mass moment of inertia Jo rolling without slipping but restrained by two linear springs of stiffness K1 and K2 as shown in Fig.1. Determine the natural frequency of vibration of the system.

Fig.1

7M

2. a) A simple pendulum is pivoted at point “O” as shown in Fig.2. Assuming small oscillations and neglecting the mass of the rod. Find the damped natural frequency of the pendulum.

Fig.2

8M

b) A mass of 10 kg suspended from one end of helical spring, the other end is fixed. The stiffness of spring is 10 N/m. the viscous damping causes the amplitude to decrease 1/10th of initial value in four complete oscillations. If a periodic force of 150cos 50tN is applied at the mass with vertical direction. Find the amplitude of forced vibration. What is its value at resonance?

7M

Unit – II

3. Two identical pendulums with masses m1, m2 and length “l” are connected by a spring of stiffness “k” as shown in Fig.3. Derive the equations of motion of the two masses and find the natural frequencies of the system when k=150N/m, m1=3kg, m2=5kg, l=0.3m and a=0.15m.

Fig.3

15M

Cont…2

:: 2 ::

4. Derive general expression for a non-uniform shaft subjected to an external torque f (x, t) per unit length using common boundary conditions.

15M

Unit – III

5. Find the flexibility influence coefficients of the given system in Fig.4.

Fig.4

15M

6. a) Write a note on Dynamic Dampers. 5M b) Drive the equation for the critical speed of the shaft.

10M

Unit – IV

7. Determine the lowest natural frequency of the system Fig.5 using matrix method. Assume k1=7k, k2=5k, k3=5k, m1=4m, m2=3m and m3= 2m.

Fig.5

15M

8. Determine the natural frequency of the spring mass system shown in Fig.6. using matrix iteration method.

15M

Fig.6

Unit – V

9. Derive Duhamel’s Integral.

15M

10. Derive a general expression which represents the response of an under-damped single-degree-of-freedom system to the arbitrary excitation F(t) using convolution Integral.

15M




MICRO ELECTRO MECHANICAL SYSTEMS (Mechanical Engineering)



Unit – I

1. a) Describe MEMS history, development and its applications in an automobile. 8M b) Explain surface micro machining method.

7M

2. a) How does MEMS Gyroscopes work? Explain the terms Coriolis force and Coriolis acceleration.

8M

b) Discuss any one thin film deposition method. Write its advantages and disadvantages.

7M

Unit – II

3. a) Describe the U shaped horizontal and vertical electro thermal actuator. 8M b) Briefly explain the following:

i. Thermal flow sensor ii. MEMS thermo vessels

7M

4. a) Discuss about micro hot plate gas sensors. 8M b) Write about the Data storage cantilever systems.

7M

Unit – III

5. a) What are the properties of MOEMS? 7M b) Describe briefly the concept of beam splitter and micro lens.

8M

6. a) What are light detectors? Explain briefly the characteristics of light detectors. 7M b) Briefly discuss the concept of wave guide and tuning.

8M

Unit – IV

7. a) What is a magneto diode? Explain its working. 8M b) Describe the process of sensing and detection using magnets.

7M

8. a) Describe with the help of line diagram, the construction and working of magneto resistive sensor.

8M

b) Explain how magnetic probe can be used for storage of data.

7M

Unit – V

9. a) Describe the thermo capillary effect observed in micro fluidic system. 8M b) Explain the advantages and disadvantages of radio frequency (RF) MEMS based

Communication systems.

7M

10. a) Discuss the applications and points to be considered of a micro fluidic system. 8M b) Briefly write about:

i. Electro thermal flow ii. MEMS inductor

7M




REHABILITATION AND RETROFITTING OF STRUCTURES (Civil Engineering)



Unit – I

1. a) Under what circumstances a building requires rehabilitation? Explain. 7M b) Explain classification of cracks in RCC building. What are the factors effecting crack?

8M

2. a) Illustrate different types of deterioration of concrete structure. 8M b) Discuss in details the importance of maintenances.

7M

Unit – II

3. Explain the different ways of controlling the corrosion of steel in concrete. Explain any two methods.

15M

4. a) Discuss in details the polymer concrete. Explain various factors effecting polymer concrete.

8M

b) Explain about the health and safety precautions for handing the repair materials.

7M

Unit – III

5. a) What is Non-destructive testing? Enumerate different types of NDT techniques. 8M b) Explain Guniting/shotcreting in detail.

7M

6. a) What is shotcreting? What are its advantages and disadvantages? 8M b) Explain the various methods of crack repair and their importance.

7M

Unit – IV

7. What is jacketing? What are the different types of jacketing explain with neat sketches?

15M

8. a) Enumerate the need for strengthening of concrete. 8M b) Explain flexural strengthening methods used in rehabilitation of structures.

7M

Unit – V

9. a) Explain the mechanism of Rebound hammer as Non-destructive testing equipment. 7M b) Brief out about mechanism of Ultra sonic pulse velocity Non-destructive testing.

8M

10. a) What is structural health monitoring of structures? Enumerate its steps. 7M b) Enumerate causes of distress in concrete structures. 8M

Hall Ticket No: Question Paper Code: A3014 (AUTONOMOUS) B ...

Documents