Hall Ticket No: Question Paper Code: A1524 (AUTONOMOUS) B. … · 2018-12-10 · 4. a) With neat diagram explain intra – MSC handover. 10M b) Explain hidden and exposed terminals

Hall Ticket No: Question Paper Code: A1524

(AUTONOMOUS) B. Tech VII Semester Supplementary Examinations, May - 2017

(Regulations: VCE-R11/R11A)

SOFTWARE PROJECT MANAGEMENT

(Common to Computer Science and Engineering & Information Technology)

Date: 13 May, 2017 AN Time: 3 hours Max Marks: 75

Answer ONE question from each Unit All Questions Carry Equal Marks

Unit – I

1. a) Explain about Late Risk Resolution & Requirements Driven Functional Decomposition with neat diagrams.

8M

b) What are the Software Metrics proposed by Bohem to improve Conventional Software Management Performance?

7M

2. a) What are the Staffing principles Offered by Bohem? Explain. 8M b) What are the Top 5 principles of Modern Process? Explain with neat diagram.

7M

Unit – II

3. a) Explain the essential activities of four phases of software life cycle. 8M b) Discuss about various artifacts in detail.

7M

4. a) Describe the software architecture from technical perspective using a diagram. 8M b) What is the software process workflow? Specify its basic principles.

7M

Unit – III

5. a) With suitable diagram explain the typical minor milestones in the life cycle of an iteration. 5M b) Discuss the three types of joint management reviews. Write the different concerns of

stakeholders.

10M

6. a) Explain in detail the cost and schedule estimating process. 10M b) Discuss the life cycle architecture milestone.

5M

Unit – IV

7. a) What are the Management Indicators? Explain in brief. 8M b) Explain about MTBF and Maturity in detail.

7M

8. a) Explain about the Following with diagrams: i. Change Traffic and Stability ii. Rework and Adaptability

8M

b) What are the Process Discriminants? Explain about stake holder cohesion or contention.

7M

Unit – V

9. a) What are the top 10 Software Management Principles? Explain any five of them. 8M b) Explain early Risk Resolution in Detail.

7M

10. a) Explain about Culture Shifts in Modern Software Project Management Process. 8M b) How do we improve team effectiveness? Explain it. 7M




SOFTWARE TESTING AND QUALITY ASSURANCE (Common to Computer Science and Engineering & Information Technology)



Unit – I

1. a) State differences between Functional and Structural testing. Compare Testing and Debugging.

7M

b) Describe phases in tester’s mental life and state complexity barrier.

8M

2. a) Justify how flow chart is different from control flow graph. 7M b) Define Path sensitization. Write heuristic procedure used in path sensitization.

8M

Unit – II

3. a) Define Transactional flow and discuss about Transaction flow testing techniques. 9M b) State and explain different data flow machine architectures.

6M

4. a) Explain data flow model. Discuss various components of it. 7M b) Discuss about sensitization and instrumentation based on transaction flows.

8M

Unit – III

5. a) Describe the procedure for specification validation using KV charts. 7M b) Explain prime implicant, sum of product form and product of sum form.

8M

6. a) Illustrate the push/pop arithmetic with an example. 7M b) Demonstrate a regular expression and flow anamoly detection method with an example

and limitations.

8M

Unit – IV

7. a) Describe types of bugs that cause in state graphs. 7M b) Give an example to describe state graphs with implementation.

8M

8. a) Define graph matrices and evaluate graph matrix with pictorial graph explain basic algorithms.

8M

b) Discuss relative merits and demerits of graph matrix representation.

7M

Unit – V

9. a) Write about data driven testing. 6M b) Explain about synchronization of test cases.

9M

10. a) What are the steps involved in automating testing using QTP? 9M b) How do you test Web application using Win Runner? 6M




WIRELESS AND MOBILE COMPUTING (Computer Science and Engineering)



Unit – I

1. a) Mention the differences between infra red and radio waves. 7M b) With the help of a neat sketch, explain the protocol architecture of IEEE 802.11.

8M

2. a) How routing is done in satellite communication systems? 7M b) Explain information bases and networking in HIPERLAN.

8M

Unit – II

3. a) Explain different categories of mobile devices. 5M b) Explain different types of radio interfaces.

10M

4. a) With neat diagram explain intra – MSC handover. 10M b) Explain hidden and exposed terminals problem.

5M

Unit – III

5. a) With a neat diagram explain how the foreign agent changes with an optimized mobile IP. 8M b) With neat diagram explain snooping TCP.

7M

6. a) Explain selective retransmission and transaction oriented TCP in mobile transport layer. 8M b) Explain ad-hoc on demand distance vector (AODV) routing protocol in MANETs.

7M

Unit – IV

7. a) Explain briefly how selective tuning technique works. 8M b) Explain the advantages and disadvantages of pull-based data delivery mechanism.

7M

8. a) What is database hoarding? Explain hoarding of multi-tier databases. 8M b) Explain N-tier client-server architecture.

7M

Unit – V

9. a) Discuss about Wireless Transport Layer Security. 7M b) Explain the functioning of Baseband in physical layer of Bluetooth protocol.

8M

10. a) How security can be implemented in Bluetooth protocol? 8M b) Explain about WAP 2.0 architecture. 7M




DATA MINING AND DATA WAREHOUSING (Common to Computer Science and Engineering & Information Technology)



Unit – I

1. a) Explain the data mining functionalities in detail with suitable examples. 8M b) Discuss major issues in data mining pertaining to mining methodology and user

interaction.

7M

2. a) Explain the major tasks in data preprocessing. 8M b) In real-world data, tuples with missing values for some attributes are a common

occurrence. Describe various methods for handling this problem.

7M

Unit – II

3. a) Explain with a neat diagram a three-tier data warehousing architecture. 7M b) Explain data warehouse design process.

8M

4. a) Explain multiway array aggregation for full cube computation. 8M b) Explain any two optimization techniques for data cube computation.

7M

Unit – III

5. a) Explain the frequent item set mining with market basket analysis example. 8M b) Discuss the Pattern-Growth approach for mining frequent item sets.

7M

6. a) Discus how a correlation measure used to augment the support-confidence framework for association rules.

5M

b) Explain in the pruning strategies for closed frequent item sets.

10M

Unit – IV

7. a) Explain the two class problems of SVM where the classes are linearly separable. 8M b) Write an algorithm for K-nearest neighbor classification given k and n, the number of

attributes describing each tuple.

7M

8. a) Why naive Bayesian classification is called “naive”? Briefly discuss the ideas of naïve Bayesian classification.

8M

b) Explain decision tree induction classification with an example.

7M

Unit – V

9. a) What is cluster analysis? Explain the requirements for cluster analysis. 8M b) Explain K-means algorithm with an example.

7M

10. a) What are outliers? Explain various outlier detection methods. 8M b) Why is outlier mining important? Briefly describe the different approaches behind

statistical-based outlier detection. 7M




IMAGE PROCESSING (Computer Science and Engineering)



Unit – I

1. a) Define with appropriate equations the Discrete Cosine Transform and also analyze its properties with appropriate expressions.

9M

b) Let p and q be the pixels at coordinates (10, 12) and (15, 20), respectively. Find out which distance measure gives the minimum distance between the pixels.

6M

2. a) Explain the concept of sampling and quantization of an image. 9M b) With a neat sketch, explain microdensitometer image acquisition system.

6M

Unit – II

3. a) What is histogram? Explain the concepts of histogram processing in detail. 8M b) Explain in detail a technique to enhance a blurred image in frequency domain.

7M

4. a) With a neat block diagram, explain homomorphic filtering approach in detail. 9M b) Explain the following with respect to image enhancement:

i. Contrast Stretching ii. Gray level slicing

6M

Unit – III

5. a) Explain about the compression and de-compression of LZW coding. 10M b) Discuss any two techniques of compressing binary images.

5M

6. a) With the help of block diagram explain JPEG Encoder. 10M b) Explain in detail lossless predictive coding approach for image compression.

5M

Unit – IV

7. a) Discuss region splitting and merging algorithm with an illustration. 8M b) Explain the basic formulation of edge modeling and detection.

7M

8. a) List and explain the techniques for detecting gray level discontinuities in a digital image. 10M b) Explain the classification of image segmentation algorithms.

5M

Unit – V

9. Briefly discuss about: i. Dilation ii. Erosion iii. Opening and closing

15M

10. a) Explain about the primary, secondary and HIS color models. 10M b) Discuss any one pseudo color image processing technique. 5M




OPERATIONS RESEARCH (Common to Computer Science and Engineering, Information Technology &

Mechanical Engineering) Date: 25 May, 2017 AN Time: 3 hours Max Marks: 75


Unit – I

1. a) Discuss about the limitations of Operation Research. 6M b) In the production of 2 types of toys, a factory uses 3 machines A, B and C. The time

required to produce the first type of toy is 6 hours, 8 hours and 12 hours in machines A, B and C respectively. The time required to make the second type of toy is 8 hours, 4 hours and 4 hours in machines A, B and C respectively. The maximum available time (in hours) for the machines A, B, C are 380, 300 and 404 respectively. The profit on the first type of toy is Rs.5 while that on the second type of toy is Rs.3. To find the number of toys of each type that should be produced to get maximum profit, formulate the problem as an LPP.

9M

2. Solve the following LP problem by simplex method.

1 2 3

1 2 3

1 2

1 2 3

1 2

3 2

3 2

and

7

2 4 12

4 3 8 10

, 3 0

Minimize Z x x x

Subject to

x x x

x x

x x x

x x x

15M

Unit – II

3. Solve the assignment problem represented by the following matrix:

Job

Person 1 2 3 4

A 20 25 22 28

B 15 18 23 17

C 19 17 21 24

D 25 23 24 24

15M

4. a) Describe a typical Travelling Salesman Problem. 3M b) A travelling salesman has to visit five cities. The travelling costs from one city to the

others are given below. What is the sequence of his visit to all the five cities only once and return to the starting city, so that total cost is minimized?

A B C D E

A - 3 6 2 3

B 3 - 5 2 3

C 6 5 - 6 4

D E

2 3

2 3

6 4

- 6

6 -

12M

Cont…2

:: 2 ::

Unit – III

5. There are four jobs 1,2,3 and 4 are to be processed on the four machines A,B,C and D in the order ABCD. The processing times in minutes are given below:

Jobs(j) A B C D

1 58 14 14 48

2 30 10 18 32

3 28 12 16 44

4 64 16 12 42

Find for no passing, the minimum elapsed time.

15M

6. a) Give some applications of queuing theory. 5M b) Customers arrive at a one window drive-in bank according to Poisson distribution with 10

per hour. Service time per customer is exponential with mean 5 minutes. The space in front of the window including for the service care can accommodate a maximum of 3 cars. Others can wait outside this space. i. What is the probability that an arriving customer can drive directly to the window. ii. What is the probability that an arriving customer can drive will have to wait outside the space iii. What is the average time a customer waits before being served

10M

Unit – IV

7. a) A mill owner finds from his past records the costs of running a machine whose purchase price is Rs.6000 are as given below:

Year 1 2 3 4 5 6 7

Running cost (Rs.) 1000 1200 1400 1800 2300 2800 3400

Resale value (Rs.) 3000 1500 750 375 200 200 200

Determine at what age is a replacement due.

7M

b) A milk plant is offered an equipment A which is priced at Rs.60,000 and the costs of operation and maintenance are estimated to be Rs.10,000 for each of the first 5 years, increasing every year by Rs. 3000 per year in the sixth and subsequent years. If money carries the rate of interest 10% per annum what would the optimal replacement period?

8M

8. a) What are various inventory-related costs? 4M b) The production rate of a particular item is 100 per day and the demand is 420 per week.

The setup cost is Rs.80/- and the holding cost is Rs.2.184 per unit per year. Find the optimal run size and corresponding total variable costs.

11M

Unit – V

9. a) Explain ‘Saddle point and Value of the game’ in game theory. 4M b) Solve the following game:

B1 B2 B3 B4 B5

A1 2 3 4 8 4

A2 5 6 3 7 8

A3 6 7 9 8 7

A4 4 2 8 4 3

11M

10. a) Explain the characteristics of Dynamic Programming. 5M b) Solve the following using dynamic programming:

2 2 2

1 2 1 2Min Z .... ; . . . ... 0; 0, 1,2,...,n n iy y y S T C y y y c y i n

10M




DISTRIBUTED OPERATING SYSTEMS (Common to Computer Science and Engineering & Information Technology)



Unit – I

1. a) What is a distributed system? What are its advantages and disadvantages? 7M b) Is transparency required in distributed systems? Justify and explain its different kinds.

8M

2. a) Write about Micro and Monolithic Kernels. Which one is used mostly in distributed system? And Why?

7M

b) Differentiate the following: i. Multiprocessor and Multicomputers ii. MIMD and SIMD computer

8M

Unit – II

3. a) How does the communication in distributed systems happen with respect to different layers?

10M

b) Explain ATM reference model.

5M

4. a) Explain Reliable versus Unreliable primitives. 7M b) Briefly explain Parameter Passing in RPC by considering a procedure and the

corresponding message.

8M

Unit – III

5. a) Distinguish Berkely and Cristian's algorithm. 5M b) Discuss the bully and the ring algorithm.

10M

6. a) Explain concurrency control using two phase locking. 5M b) Distinguish wait-die and wound-wait Deadlock prevention algorithm.

10M

Unit – IV

7. a) What are the design issues for thread packages? Explain. 7M b) What is an idle workstation? Explain how they are used.

8M

8. a) Write about fault tolerance using active replication. 8M b) Write about real time scheduling.

7M

Unit – V

9. a) How caching is done in shared memory? Explain. 8M b) Compare PRAM consistency with casual consistency.

7M

10. a) Why is the concept of home memory needed in memnet but not in dash? Explain. 7M b) Differentiate NUMA and NORMA. 8M



(Regulations: VCE- R11/R11A)

NETWORK SECURITY AND CRYPTOGRAPHY

(Information Technology)



Unit - I 1. a) List out the various types of security mechanisms. And briefly explain about pervasive

mechanisms. 8M

b) Write about Hill Cipher model.

7M

2. a) Briefly explain about Substitution techniques. 7M b) Explain about the following:

i. Stegnography ii. Rotor machines

8M

Unit – II

3. a) Write about Strength of DES. 7M b) Briefly explain about Cipher-Feedback Mode.

8M

4. a) State and explain Euler’s Theorem. 7M b) What is the difference between stream cipher and block cipher? Explain the motivation

for feistel cipher structure. 8M

Unit – III

5. a) Briefly explain about Diffie-Hellman Key exchange algorithm. 8M b) Briefly explain about Message Authentication Code with neat sketch.

7M

6. a) Explain about HMAC Algorithm with a neat sketch. 8M b) Explain about Digital Signature Standard. 7M

Unit – IV

7. a) Give the format for X.509 certificate. How are user’s certificates obtained? 8M b) Differentiate Transport and Tunnel modes in IPSec.

7M

8. a) Define S/MIME. What is MIME content types and explain briefly. 8M b) Enumerate the differences between Kerberos version 4 and 5. 7M

Unit – V

9. a) Explain various phases of SSL handshake protocol. 9M b) Write the differences between SSL and TLS.

6M

10. a) Write short notes on Trusted Systems. 7M b) What are the characteristics of firewalls? And explain the different types and

configurations of the firewalls. 8M




MOBILE APPLICATION DEVELOPMENT THROUGH J2ME (Information Technology)



Unit – I

1. a) Explain with an example and diagram of Cellular telephone networks. 10M b) Explain briefly wireless technology.

5M

2. a) What is a profile? Explain seven profiles defined in J2ME. 10M b) What are personal digital assistants?

5M

Unit – II

3. a) Explain how the J2ME architecture will support the working of Small computing devices with neat sketch.

7M

b) Explain how application manager makes JAR and JAD files available to MIDlet suite.

8M

4. a) Explain how the classes can be function that extends MIDlet that makes use of Event Handling, User Interface and Device Data.

10M

b) What are the differences between J2SE and J2ME?

5M

Unit – III

5. a) What are the steps required to explore your application that interacts with the small computing device’s screen, with appropriate program?

10M

b) Which class has instance as a button that the user presses on the device to enact a specific task? Explain it.

5M

6. a) Explain how to regain control disruption of processing by application manager with steps and appropriate program.

10M

b) Which components can make a proper low level display? Explain briefly.

5M

Unit – IV

7. a) Illustrate a model J2ME application that retrieves information from a database. 10M b) Discuss connection pool.

5M

8. a) Illustrate the structure of the Record Listeners. 10M b) What are the steps required to write and read string based records?

5M

Unit – V

9. a) Write a sample java code to write and read from a socket connection. 8M b) Explain the “The path between two computing devices that utilizes a hard-wired cable

technology or wireless technology to transmit and receive data over a network”.

7M

10. a) How to retrieve information from a web server? Illustrate with a program. 10M b) Explain different versions of the open() method of the HTTP connection. 5M




VLSI DESIGN (Electronics and Communication Engineering)



Unit – I

1. a) Explain the operation of NMOS Enhancement mode transistor. 9M b) Explain the following briefly:

i. Threshold Voltage (Vth) ii. Mobility variation

6M

2. a) Explain the differential and tristate inverter in detail with neat diagrams. 10M b) What are the differences between Unipolar and Bipolar devices?

5M

Unit – II

3. a) Write notes on: i. Isolation in a MOS transistor ii. Use of polysilicon for gate material

6M

b) With neat diagrams describe in detail the steps necessary to fabricate a CMOS inverter in the N-Well CMOS process.

9M

4. a) Explain the origin of latch up in CMOS circuits. Discuss latch up triggering and prevention methods.

9M

b) Briefly explain epitaxy, ion implantation and deposition in CMOS technology.

6M

Unit – III

5. a) What is a layout diagram? Draw the layout diagram of CMOS inverter. 8M b) Describe three sources of wiring capacitances. Explain the effect of wiring capacitance

on the performance of a VLSI circuit.

7M

6. a) Write short notes on the following: i. Contact cuts using λ-Based design rules of MOS transistors ii. Sheet resistance estimation

8M

b) With neat figure estimate NMOS inverter pair delay and CMOS inverter pair delays.

7M

Unit – IV

7. a) Explain Pseudo-NMOS logic and Domino logic with examples using neat diagram. 6M b) Realize two input AND gate, NOR gate and buffer using CMOS logic.

9M

8. a) With diagram explain the working of Dynamic CMOS logic involved in various steps with output waveforms.

10M

b) Compare Static CMOS with Dynamic CMOS logic.

5M

Unit – V

9. a) Write notes on IDDQ methods. 5M b) Write short notes on built in self-test (BIST) techniques using a neat block diagram.

10M

10. a) Explain stuck_at faults model in detail. 8M b) Explain short circuit and open circuit fault models with examples. 7M




INDUSTRIAL MANAGEMENT AND PSYCHOLOGY (Electronics and Communication Engineering)



Unit – I

1. a) What are the functions of Management? 7M b) What are the contributions of Taylor to development of Management thought?

8M

2. a) Explain the following: i. Maslow’s Hierarchy of needs theory ii. Functional Organization

11M

b) How organizations fail under dictatorial leadership? Explain.

4M

Unit – II

3. a) What are the factors affecting plant location? Explain. 6M b) Explain the following types of plant layout:

i. Product Layout ii. Process Layout iii. Fixed Layout

9M

4. a) What is work study? Explain the procedure involved and result obtained by implementing in method study.

9M

b) The following table provides observed time (in minutes) and performance rating. Given rest and personal allowances are 12% and contingency allowance as 4% of basic time. Calculate standard time.

Element Number Observed time(in minutes) Performance rating (%)

1 0.15 80

2 0.2 85

3 0.1 90

4 0.12 75

5 0.25 80

6M

Unit – III

5. a) What is the objective of time analysis made in CPM network analysis? 6M b) From the following data:

i. Draw the project network and identify all the paths through it ii. Determine the time required to complete the project iii. Calculate the earliest and latest start and finish times for each activity

Activity 1-2 1-3 1-4 2-5 3-6 3-7 4-7 5-8 6-8 7-9 8-9 9-10

Duration (in days)

2 2 2 4 5 8 4 2 4 5 3 4

9M

Cont…2

:: 2 ::

6. a) Discuss the following briefly:

i. Acceptance Quality Level ii. Lot Tolerance percentage defective

6M

b) In a factory producing spark plugs the number of defectives found on inspection of 20 lots of 100 each is given in the table below. Calculate the average fraction defective, upper and lower control limits. Plot a P Chart and draw the inferences.

Lot No

No of Defectives Lot No

No of Defectives

Lot No

No of Defectives

1 5 8 3 15 3

2 10 9 3 16 4

3 12 10 5 17 5

4 8 11 4 18 8

5 6 12 7 19 6

6 4 13 8 20 10

7 6 14 2 - -

9M

Unit – IV

7. a) What are the factors to be considered while deciding to hold inventories? 6M b) What are the duties of a purchase manager? Explain the following inventory

classification systems: i. ABC ii. VED

9M

8. a) Discuss the Operative functions of a Human Resource Manager. 7M b) Define Job Evaluation. Explain any two methods of Job Evaluation.

8M

Unit – V

9. a) Distinguish between Industrial Psychology and Personnel Management 6M b) Explain attitudinal features of personnel adopting Theory X and Theory Y.

9M

10. a) What are the salient contributions of Hawthorne Experiment? 8M b) Define Industrial Fatigue and explain its effects. 7M




EMBEDDED SYSTEMS (Common to Electronics and Communication Engineering &

Electrical and Electronics Engineering) Date: 18 May, 2017 AN Time: 3 hours Max Marks: 75


Unit – I

1. a) Explain the challenges in Embedded computing system design. 7M b) Explain the requirement analysis of a GPS moving map.

8M

2. a) Sketch the hardware and software blocks of architectural design of an embedded system. 8M b) Explain the BMW850i brake and stability control systems.

7M

Unit – II

3. a) Draw and explain the block diagram of 8051 microcontroller. 7M b) Write an 8051 ALP to find the largest number in the given array.

8M

4. a) Write short notes on programming model of 8051. 7M b) Explain arithmetic and data transfer instructions with examples.

8M

Unit – III

5. a) Write short notes on memory management in RTOS. 7M b) Explain the operations of semaphore and queues with relevant functions.

8M

6. a) Define task and describe the task states and task transitions. 7M b) Write short notes on hard real time scheduling considerations in telegraph application.

8M

Unit – IV

7. a) Describe address resolution in terms of locator map and sketch the INTEL HEX format. 7M b) Describe how to execute Scaffold code out of RAM.

8M

8. a) Explain script files and output files in microcontroller based operating system. 7M b) List the software characteristics which cannot be tested on the host.

8M

Unit – V

9. a) Explain the features of ARM processor. 7M b) Explain the features of SHARC processor.

8M

10. a) Describe networked embedded systems of I2C in an automation example. 8M b) Describe internet enabled systems. 7M




CELLULAR AND MOBILE COMMUNICATIONS (Electronics and Communication Engineering)



Unit – I

1. a) Explain about Trunking Efficiency degradation comparing with the carriers per market. Also draw the graph related to the same using Erlang B model.

9M

b) What are the differences between frequency selective fading and flat fading?

6M

2. a) Derive the Co-channel Interference reduction factor. 8M b) Distinguish between Permanent Splitting and Dynamic Splitting.

7M

Unit – II

3. a) Distinguish between Co-channel Interference and non-Co-channel Interference. 6M b) Explain the designing of the Omni-directional Antenna under the practical case conditions

for k=7, k=12 and k=19 with all the suitable values and explain each of them.

9M

4. a) Explain about Diversity Receiver. 7M b) Explain the concept of Adjacent – Channel Interference.

8M

Unit – III

5. a) Explain the general formula of received Power from real model based on shadow case, direct path and over the water condition in detail.

8M

b) Consider a transmitter which radiates a sinusoidal carrier frequency of 1850MHz, for a vehicle moving at 90kmph. Compute the received carrier frequency if the mobile is moving in a: i. Direction towards the Transmitter ii. Direction away from the Transmitter iii. Direction which is perpendicular to the direction of the arrival of the transmitting signal

7M

6. a) Concern to the Cell Site Antennas, explain start-up configuration and abnormal Antenna configuration of start-up system.

9M

b) Differentiate between Roof-mounted and Glass-mounted Antennas.

6M

Unit – IV

7. a) Explain channel sharing, channel borrowing and sectorized Cell with relevant diagrams. 9M b) The number of channels at the cell site N=70. The call holding time is 101s=0.028h. The

number of originating calls attempted per hour is = 2270. The number of handoff calls attempted per hour is 80. Obtain the values for: i. A ii. b1 iii. b2

6M

8. a) What is Handoff process? Explain the Handoff phenomenon: i. Two – handoff – level algorithm ii. Queuing of handoffs

8M

b) What is Non – Fixed Channel Assignment? List out corresponding algorithms. 7M

Unit – V

9. a) With relevant diagram explain Network and Switching Subsystem(NSS) of GSM. 9M b) Explain authentication computation in GSM with diagram.

6M

10. a) Explain reverse CDMA Channel modulation process with diagrams. 9M b) Explain Supplementary Service Management of GSM. 6M




OPRATING SYSTEMS (Electronics and Communication Engineering)



Unit – I

1. a) Give the various Operating System Structures that are prevalent in the society. 9M b) What are distributed systems? Explain in brief.

6M

2. a) Define process. What are the different states of a process? Explain with a neat diagram.

10M

b) Compare between different types of schedulers.

5M

Unit – II

3. a) What are the classic problems of Synchronization? Explain with examples. 10M b) Explain Banker’s algorithm.

5M

4. a) What is a semaphore? Explain about semaphores. 5M b) What is a deadlock? Explain about resource allocation graph. How can recovery from

deadlock state? 10M

Unit – III

5. a) Explain briefly several ways of accessing files. 6M b) Describe the Interface Between File System and IOCS with diagram.

9M

6. a) Explain about Acyclic directory structure. 3M b) What is virtual memory? Explain how it is implemented. Comment on optimal, LRU

and FIFO page replacement policies.

12M

Unit – IV

7. a) What are the various Disk attachments that can be implemented? 6M b) Discuss the various Disk Scheduling algorithms.

9M

8. a) What are STREAMS? Explain in brief. 7M b) Explain in brief life cycle of an I/O request.

8M

Unit – V

9. a) Explain Protection domain with the help of a diagram. 8M b) Describe briefly implementation of access matrix.

7M

10. a) Explain various types of system and program threats. 8M b) Describe how Encryption is used to protect information transmitted over unreliable

links. 7M




DIGITAL IMAGE PROCESSING (Electronics and Communication Engineering)



Unit – I

1. a) Describe the fundamental steps involved in processing of digital images. 10M b) Explain the following for a pixel of an image:

i. Adjacency ii Connectivity

5M

2. a) Develop a simple model for image formation. 5M b) Bring out a brief summary of the process steps for obtaining a digitized image as shown

in Fig.1 and comment on its effect on resolution of the image.

Fig.1

10M

Unit – II

3. a) Define Haar transform and its inverse. Briefly explain the properties of Haar transform. 8M b) Explain about Walsh transform and its properties.

7M

4. a) Define and explain the 2D- Fourier transform and its properties. 7M b) Explain about Hotelling transform.

8M

Unit – III

5. a) How image enhancement in spatial domain differs from enhancement in frequency Domain? Explain in detail any three point processing techniques in spatial domain image enhancement.

8M

b) Explain the mechanics of spatial filtering. What are the important points to be considered while applying spatial filters on the digital image?

7M

6. a) Explain the fundamental steps in image enhancement in frequency domain. 4M b) Explain how smoothing is achieved in frequency domain.

11M

Cont…2

:: 2 ::

Unit – IV

7. a) Discuss with neat sketches the various noise PDF found in image processing applications. 8M b) What is Pseudo color image processing? Discuss the technique of intensity slicing.

7M

8. a) Explain the filtering technique to be used for restoring an image when only mean and variance of noise is known and the filter performance has to be optimal for each image.

10M

b) Describe how histogram processing techniques are applied to images for color enhancement.

5M

Unit – V

9. a) Explain Huffman encoding process with an example. Mention its limitations. 8M b) Explain about various binary image compression techniques.

7M

10. a) Explain the following with respect to data compression: i. Relative data redundancy ii. Fidelity criteria

8M

b) Describe the principle of region based segmentation. 7M




CPLD AND FPGA ARCHITECTURES AND APPLICATIONS (Electronics and Communication Engineering)



Unit – I

1. a) With a flow diagram, explain the design abstractions for FPGA design. 8M b) With the help of block diagram, explain the structure of PAL fuse matrix.

7M

2. a) What are the various methodologies implemented in FPGA design? Explain the same with a neat diagram.

8M

b) Explain the advantages and history of FPGAs.

7M

Unit – II

3. a) Explain about Antifuse Programming. 7M b) With a neat diagram, explain about Xilinx Spartan-II 2.5V I/O pin.

8M

4. a) With a neat diagram, explain about Altera APEX II logic elements. 9M b) Explain about JTAG Architecture with a neat diagram.

6M

Unit – III

5. a) Describe and analyze the different actions that occur during Booth multiplication. 6M b) A ripple carry counter has a total clock skew of ‘x’ time units. Show the distribution of that

clock skew to the bits in the counter that results in: i. Slowest maximum speed for the counter ii. Fastest maximum speed for the counter

9M

6. a) Analyze the functioning of a carry – skip adder with appropriate diagram and also derive the total carry – skip delay with appropriate terminologies.

9M

b) Define the following with relevant examples/diagrams: i. Clocking discipline for latches and flipflops ii. Two – phase clocking

6M

Unit – IV

7. a) Define the process of logic synthesis. Analyze the different phases of logic synthesis and explain the same with appropriate examples.

9M

b) With appropriate block diagram, analyze the process of delay locked loop.

6M

8. a) Analyze the process of technology dependent logic optimization techniques with relevant diagrams.

9M

b) Explain the various steps involved in the physical design of FPGAs.

6M

Unit – V

9. a) What is a Hazard and Explain how a Hazard occurs in Finite State Machine. 6M b) Explain about the Architecture of Altera’s FLEX 8000 with relevant diagrams.

9M

10. a) Draw the state diagram and state Table for a Moore Type Sequence Detector to detect the sequence 1010.

9M

b) Design a serial adder circuit and write its equivalent MOORE / Mealy FSM. 6M




POWER SEMICONDUCTOR DRIVES (Electrical and Electronics Engineering)



Unit – I

1. a) List the drawbacks of rectifier fed DC drives. By drawing block diagram of an electric drive system explain various parts.

7M

b) Explain the use of freewheeling diode in converter fed DC drives. Take an example of three phase fully controlled converter fed for explanation. How it is going to affect machine performance.

8M

2. a) With the help of neat circuit diagram and wave forms explain the operation of single phase full converter fed separately excited DC motor. Derive the relation between speed and firing angle.

8M

b) A 220V, 1500rpm, 10A separately excited dc motor has an armature resistance of 10Ω. It is fed from a single phase fully controlled bridge rectifier with a source voltage of 230V 50Hz. Assuming continuous load current, compute: i. The motor speed at firing angle of 300 and torque of 5N-m ii. Developed torque at a firing angle of 450 and speed 1000rpm

7M

Unit – II

3. a) With the help of neat block diagram explain the close loop control of separately excited DC motor Drive.

7M

b) Explain the working of dual converter fed separately excited DC motor drive.

8M

4. a) With the help of neat circuit diagram and wave forms explain the operation of four quadrant chopper fed separately excited DC motor.

8M

b) A class-A chopper operates on a time ratio control is supplying the armature of separately excited DC motor. Show that the motor speed-torque relationship is

a2a

m Tk

R

k

Vw

where V is the chopper input voltage, Ra= armature resistance

Ta= Motor torque, k= torque constant.

7M

Unit – III

5. a) Explain current source inverter control of induction motor. 7M b) Compare CSI fed induction with VSI fed induction motor.

8M

6. a) Discuss the closed loop speed control for a CSI fed induction motor. 7M b) Explain the principle and operation of cycloconverter control of induction motor.

8M

Unit – IV

7. a) What are the advantages of rotor side control methods over stator side control methods for an induction motor drive? Write some applications of rotor side control of induction motor drive.

5M

b) By deriving relation between slip and firing angle explain the working of static Kramer drive with near circuit diagram.

10M

Cont…2

:: 2 ::

8. a) Explain the static rotor resistance control method for the speed control of induction motor with neat block diagram. Derive the relation between effective external resistance and duty ratio. Draw its speed torque characteristics.

12M

b) If 40Ω is the resistance and 0.75 is the duty cycle for the induction motor speed control using chopper, what is the effective value of the resistance?

3M

Unit – V

9. a) Explain the self controlled synchronous motor drive employing load commutated thyristor inverter.

6M

b) A synchronous motor is controlled by a load commutated inverter, which in turn is fed from a line commutated converter. Source voltage is 6.6KV, 50Hz. Load commutated inverter operates at a constant firing angle of 1400 and when rectifying firing angle of 00. Dc link inductor resistance is Rd=0.1Ω. Drive operates in self-control mode with a constant (v/f) ratio. Motor has the details: 8MW, 3-Phase, 6600V, 6 pole, 50Hz, unity power factor, star connected, Xs=2.8Ω, Rs=0Ω. Determine source side converter firing angles for motor operation at rated current and 500rpm. What will be the power developed by motor.

8M

10. a) Explain the variable frequency control of multiple synchronous motors. 8M b) What are the methods of variable frequency control of 3 phase synchronous motor?

Discuss the role of a damper winding in a synchronous motor. 7M




ENTREPRENEURSHIP

(Common to Electrical and Electronics Engineering, Mechanical Engineering & Aeronautical Engineering)



Unit – I

1. a) Explain the characteristics and functions of an entrepreneur. 7M b) Examine in detail, the role of an entrepreneur in economic development.

8M

2. a) Explain the various stimulators and barriers to entrepreneurship. 7M b) Explain in detail, the ethics and social responsibilities of an entrepreneur. 8M

Unit – II

3. a) Write note on SIDO and SIDBI. 7M b) Explain the role of DIC in the development of entrepreneurship.

8M

4. a) Elaborate the role of IDBI towards entrepreneurship. 6M b) Give a brief note about the following towards Entrepreneurship:

i. EDI ii. MSME

9M

Unit – III

5. a) Examine the importance of Women Entrepreneurs. 7M b) Examine the qualities of women entrepreneurs in India.

8M

6. a) Describe the entrepreneurial journey of any two Indian women entrepreneurs. 8M b) Explain the challenges being faced by Women Entrepreneurs. 7M

Unit – IV

7. a) Explain the process of project appraisal. 8M b) Explain the concept of profitability appraisal.

7M

8. a) What are the various components of a detailed project report? 7M b) Explain the various steps involved in selection of projects. 8M

Unit – V

9. a) How does training impacts entrepreneurship? 7M b) Design an appropriate training programme for women entrepreneurs in the agro based

industry.

8M

10. a) Explain the importance of training for entrepreneurship development. 7M b) How can the performance of trainees be evaluated? 8M




INSTRUMENTATION

(Electrical and Electronics Engineering)



Unit – I

1. a) Discuss the performance characteristics of a measuring system. 10M b) Write short notes on gross errors.

5M

2. a) What is the difference between sampling process and pulse modulation? 5M b) Write short notes on Modulated signals. 10M

Unit – II

3. a) Draw the block diagram of general purpose CRO and explain the functioning of the following: i. Vertical amplifier ii. Time base generator

10M

b) An electrically deflected CRT has a final anode voltage of 2000V and parallel deflecting plates 1.5cm long and 5mm apart. If the screen is 50cm from the centre of deflecting plates, find: i. Deflection sensitivity of the tube ii. Deflection factor of the tube

5M

4. a) What is the basic principle of sampling oscilloscope? Explain its working with a neat block diagram.

9M

b) Explain the necessity of time delays used in a CRO to synchronize the output of Horizontal and vertical amplifiers in a CRO.

6M

Unit – III

5. a) Explain any two types of Spectrum Analyzers. 8M b) Explain the block diagram of Vector impedance meter in brief.

7M

6. a) Explain the working of Heterodyne analyzer with a neat block diagram. 8M b) In detail explain the working of a peak reading voltmeter with the help of a block

diagram. 7M

Unit – IV

7. a) Describe briefly the working of piezoelectric transducer with neat sketch. 8M b) Explain the working of LVDT with neat diagram and give any one applications.

7M

8. a) Explain the working principle of: i. Capacitive transducer ii. Resistive transducer

8M

b) Describe the working principle and construction of: i. Unbounded strain Gauges ii. Bounded strain gauges

7M

Cont…2

::2::

Unit – V

9. a) Explain the measurement of liquid level using variable dielectric media method. 8M b) Explain the flow measurement, when the fluid is flow through tapered pipe.

7M

10. a) Explain the measurement of pressure using dead weight gauges and manometers and write formula for Gage pressure.

8M

b) A well type manometer uses a liquid having density 1200kg/m3. The well has a diameter of 100mm and tube has a diameter of 10mm. The manometer is used to measure a differential pressure in an air flow system. The scale placed along side the tube has no correction factor for the area ratio of the manometer. Calculate the value of a factor that may be multiplied by the manometer reading in mm to find the pressure differential in KPa.

7M

Hall Ticket No: Question Paper Code : A1331



CAD/CAM (Mechanical Engineering)



Unit – I

1. a) Explain the basic structure of a computing system and how does it help the manufacturing industries.

7M

b) Explain various input devices used in industrial computing systems.

8M

2. a) With an example explain 2D transformations used in computer graphics. 8M b) Explain the isometric projection methods in computer graphics.

7M

Unit – II

3. a) Compare 2D and 3D wire frame models. 7M b) Comment on characteristics of B-Spline and Bezier curves.

8M

4. a) Explain the parametric representation of 2D surfaces. 7M b) Discuss with the help of neat sketches, the most commonly used solid entities.

8M

UNIT – III

5. a) With sketches, explain tool change procedure with tool change arm having double gripper.

10M

b) Write a note on generative–type process planning system.

5M

6. a) With sketches, explain the important features of a Horizontal Axis Machining Centre. 10M b) Write a note on parts classification and coding.

5M

Unit – IV

7. a) Classify different types of computer aided quality control system. 6M b) Explain scanning laser systems for quality control.

9M

8. a) Discuss the optical systems used in machine vision. 9M b) What do you mean by CAQC (Computer Aided Quality Control)? Explain.

6M

Unit – V

9. a) Describe different types of material handling system in CIM. 9M b) Differentiate between FMS and manufacturing cell.

6M

10. a) Describe various functions of computer in CIMS. 8M b) Explain different types of personnel requirements in CIM system. 7M




INSTRUMENTATION AND CONTROL SYSTEMS (Mechanical Engineering)



Unit – I

1. a) Draw the block diagram representation of a generalized measurement system. Identify the various elements and point out the function performed by each element.

8M

b) With a neat sketch explain the working of LVDT.

7M

2. a) What is error? Explain the source of error. 7M b) Write a short note on piezo electric transducer and its applications.

8M

Unit – II

3. a) With a neat diagram explain the resistive method of measurement of liquid level. 8M b) Explain the measurement of rate of fluid flow using a hotwire anemometer.

7M

4. a) Describe any two types of Gauges for measurement of low pressures. 8M b) With neat sketches explain the Ultra sonic flow transducer.

7M

Unit – III

5. a) Explain the working of drag cup tachometer with a neat sketch. 8M b) Explain about any two mechanical tachometers.

7M

6. a) With a neat sketch explain an electrical stroboscope. 8M b) Explain the working of piezo electric accelerometer with a neat sketch.

7M

Unit – IV

7. a) Explain any two types of strain gauges with their diagrams. 8M b) A compressive force is applied to a structural member. The strain is 5 micro strain. Two

separate strain gauges are attached to the structural member, one is nickel wire strain gauge having a gauge factor of -12.1 and the other is nichromewire strain gauge having a gauge factor of 2. Calculate the value of resistance of the gauges after they are strained. The resistance of strain gauges before being strained is 120 ohms.

7M

8. a) What are the salient features of Thermistors. 6M b) A Thermo couple circuit uses a Chromelalumel thermo couple which gives an emf of

33.3V, when measuring a temperature of 8000C with reference temperature 00 C. The resistance of the meter coil Rm is 50 ohms and a current of 0.1mA gives full scale deflection. The resistance of junction and leads Re is 12 ohms. Calculate i. Resistance of the series resistance if a temperature of 8000C is to give full scale

deflection ii. The approximate error due to the rise of 1 ohm in Re iii. The approximate error due to the rise of 100C in the copper coil of the meter

9M

Unit – V

9. a) Explain the measurement of humidity using a dew point meter with neat diagram. 8M b) What is meant by servo mechanism? Explain its significance.

7M

10. a) With a neat sketch explain the working of dew point meter. 8M b) Write the differences between open and closed loop control systems. 7M




REFRIGERATION AND AIR CONDITIONING

(Mechanical Engineering)



Unit – I

1. a) For a reversed carnot cycle obtain the expression for COP. 8M b) A refrigeration system has air leaving refrigerated space at 7oC and 1 bar and

subsequently air is compressed isentropically to 5 bar. After being compressed air is cooled up to 27oC at this pressure and then expanded isentropically up to 1 bar and discharged into refrigerated space. Determine COP of the system.

7M

2. a) With the help of examples, explain the type of refrigeration used in Food storage, Distillery, Beverages, Milk industry.

8M

b) A refrigerator operating on reversed Carnot cycle extracts 500kJ/min of heat from a refrigerated space being maintained at –16oC and rejects heat to the atmosphere at 27oC. Determine the work input and COP of the refrigerator.

7M

Unit – II

3. a) Explain advantages and disadvantages of vapour compression over air refrigeration. 6M b) A vapour compression refrigeration system operates between -100C and 450C. The

refrigerant is dry saturated at the entry of the compressor and attain 1020C after compression. The compressor bore = stroke=8cm and runs at 480rpm with 80% volumetric efficiency. The temperature of liquid refrigerant at entry of throttle 350C(Cpl=1.62 kJ/kg 0C). Determine: i. COP ii. mass flow rate of refrigerant per minute Take the following properties of the refrigerant.

Saturation Temp(0C)

Specific value of vapour(m3/kg)

Enthalpy(kJ/kg) Entropy(kJ/kgK)

hf hg sf sg

-10 0.233 45.4 460.7 0.183 1.762

45 0.045 133 483.6 0.485 1.587

9M

4. a) Explain water ammonia absorption system with neat sketch. 6M b) In an absorption type refrigerator, the heat supplied to NH3 generator by condensing

steam at 2 bar and 90% dry. The temperature to be maintained in the refrigerator -50C.

The temperature of the atmosphere is 300C. Find the maximum COP possible of the refrigerator. If the refrigeration load is 20 tons and actual COP is 70% of maximum COP then find the mass of steam required per hour.

9M

Unit – III

5. a) Explain the dry expansion evaporator with the help of a neat sketch. 8M b) Discuss the operation of a capillary tube in a refrigeration system.

7M

6. a) Write a short note on R-12 and R-22 as a refrigerant. 7M b) What are the desirable properties of an ideal refrigerant? 8M

Cont…2

::2::

Unit – IV

7. a) Prove that the relation between degree of saturation and relative humidity is given by an expression:

1

t

t vs

p

p p

where tp = total pressure of moist air, vsp = partial pressure of water vapour when air is

fully saturated.

7M

b) The DBT and RH of air are 350 C and 60% respectively. The pressure of the air is 1.033 bar. Determine specific humidity and vapour pressure in the air. If 5gms of water vapour is removed from the air and temperature is reduced to 250C, find out the relative humidity and DPT of the air.

8M

8. a) Write short notes on the following: i. ESHF ii. Cooling with dehumidification of air

8M

b) 100m3 of air per minute at 300C DBT and 60% RH is cooled to 200C DBT by passing through a cooling coil. Find: i. Capacity of cooling coil in tons of refrigeration ii. RH and WBT of air after cooling Take atmospheric pressure 1 bar.

7M

Unit – V

9. a) Draw a neat labeled diagram of a year round air conditioning system and explain the operation of it.

8M

b) With a neat sketch explain the working of air washer.

7M

10. a) Why filter is used in air-conditioning system? List out different types of filters and explain of any two.

7M

b) Explain about different types of air distribution systems. 8M




AUTOMOBILE ENGINEERING (Mechanical Engineering)



Unit – I

1. a) Give the classification of automobiles. 8M b) Compare dry and wet liners and give your inferences.

7M

2. a) What are the different types of oil filters? Explain anyone with a sketch. 8M b) Explain the terms decarbonisation, reboring and nitriding.

7M

Unit – II

3. a) Explain Electronic Injection of gasoline with a line diagram. 8M b) List out the problems in carburetion.

7M

4. a) Explain the tradeoff between NOx and PM. 7M b) Illustrate multipoint fuel injection and throttle body fuel injection with neat sketches.

8M

Unit – III

5. a) Explain forced circulation cooling system with the help of neat sketch. 9M b) Explain the working of thermostat valve with a neat sketch.

6M

6. a) With a neat sketch explain the working of electronic ignition system using contact triggers.

8M

b) Explain magneto coil ignition system with a neat sketch.

7M

Unit – IV

7. a) Discuss briefly about the necessity of gearbox with suitable graphs. 7M b) Explain the working of a differential rear axles with a neat sketch.

8M

8. a) Explain the working of a tandem cylinder with a neat sketch. 7M b) Explain the working of pneumatic braking system with a layout.

8M

Unit – V

9. a) Write briefly about the following: i. Steering shaft ii. Drop arm iii. Drag link iv. Steering knuckle

8M

b) Discuss briefly about: i. Slip angle ii.. Centre point steering

7M

10. a) What are the types of suspension systems? Explain independent suspension system. 8M b) Explain McPherson strut suspension system with a neat sketch. 7M




COMPUTATIONAL FLUID DYNAMICS

(Aeronautical Engineering)



Unit – I

1. a) Derive the expression for continuity equation from fundamental principles. 7M b) Derive the expression for Momentum equation in integral form in Cartesian co-ordinate

system.

8M

2. a) Derive the general energy equation from the control volume concept in Cartesian coordinates.

9M

b) From the above, deduce the 3-D heat conduction at steady state.

6M

Unit – II

3. a) Classify the following partial differential equations using Eigen value method as elliptic, parabolic and hyperbolic: i. Laplace Equation ii. Second Order Wave equation iii. Convection Diffusion equation

9M

b) Discuss the major differences between Shock Capturing methods and Shock Fitting Methods.

6M

4. a) Write the Continuity, Momentum equations in Conservative form and Non-Conservative form for adiabatic inviscid flow.

9M

b) Discuss how a partial differential equation can be classified using Eigen value method.

6M

Unit – III

5.

a) Apply Taylor series expansion to the general form 2 1x i i iiu au bu cu obtain the

central third order accurate finite difference approximation to the first derivative at a mesh point I.

9M

b) Consider a un-steady convection equation using finite difference method write down the Forward Time Backward Space (FTBS) discretization using a 3 point stencil. Also show how the boundary points are treated in this scheme.

6M

6. a) For a steady state heat conduction equation in 1-D write the finite difference discretization on a domain x = [0, 1] using explicit method.

5M

b) Solve the discretized equation in the problem above for the following boundary conditions for 3 iterations. Given at T( x =0) = 100oC and T( x =1) = 50oC.

10M

Unit – IV

7. a) What is meant by boundary fitted coordinate system? How does it differ from rectangular grid? Explain.

7M

b) Explain about elliptic grid generation.

8M

8. a) Explain about adaptive grid. 9M b) How does it differ from stretched grid? 6M

Unit – V

9. a) What do you mean by hyperbolic grid? 5M b) Explain Cell Area method in the context of Hyperbolic grid generation.

10M

10. a) Explain grid generation using Parabolic grid generators. 8M b) Write a note on coordinate system control. 7M




VIBRATIONS AND STRUCTURAL DYNAMICS (Aeronautical Engineering)



Unit – I

1. a) Derive the equation for logarithmic decrement. 4M b) A cylindrical body of radius ‘r’ rolls without slipping on a concave surface ‘R’. Find the

frequency of small vibrations of the cylinder about the equilibrium position.

11M

2. a) Explain Vibration Isolation and Transmissibility. 4M b) A vertical single cylinder diesel engine of 700kg mass is mounted on springs with

K=260KN/m and dampers with damping factor 0.2. The rotating parts are well balanced. The mass of the equivalent reciprocating parts is 11kg and the stroke is 220mm. Determine the force transmitted to the foundation if the engine runs at 260rpm.

11M

Unit – II

3. Derive natural frequency and mode shapes of double pendulum.

15M

4. Find the frequencies for the system shown in Fig.1.

Fig.1

15M

Unit – III

5. Obtain the natural frequency of the system shown in Fig.2 using Eigen value method.

Fig.2

15M

Cont…2

:: 2 ::

6. a) Briefly discuss about Dynamic Damper. 3M b) An electric motor is supported on a spring and a dashpot. The spring has the stiffness

6400N/m and dashpot offers resistance of 500N at 40m/sec. The unbalanced mass 0.5kg rotates at 5cm radius and total mass of the system is 20kg. The motor runs at 400 rpm. Determine: i. Damping factor ii. Amplitude of vibration and phase angle iii. Resonant speed and amplitude iv. Force exerted by spring and dashpot

12M

Unit – IV

7. a) Derive Rayleigh’s Ritz equation for finding natural frequency of a system. 7M b) Determine the fundamental natural frequency of a simply supported beam using

Rayleigh’s Ritz method subjected to uniformly distributed load.

8M

8. Explain matrix iteration method for finding of higher modes using orthogonal conditions with example.

15M

Unit – V

9. Explain Duhamel’s integral method with suitable example.

15M

10. Determine the natural frequency of the system shown in Fig.3 using matrix iteration method.

Fig.3

15M




AVIONICS (Aeronautical Engineering)



Unit – I

1. a) What is avionics? Give the general advantage of avionics over the conventional aircraft system. Mention various avionic systems used in aircraft.

9M

b) Differentiate LED and LCD. Mention its applications in aircraft display.

6M

2. a) Give an account of flight deck display technologies used to fly an aircraft with ease. 8M b) Explain the instrumentations involved in a head up display with suitable illustrations.

7M

Unit – II

3. a) Explain the role of VHF communication in air traffic controlling. 5M b) Explain the working principle of audio transmitter and receiver systems.

10M

4. a) Write a short note on application of UHF communication systems in aircraft. 7M b) Discuss the frequency bands in radio systems along with their applications.

8M

Unit – III

5. a) Explain in detail about VHF omnirange with a neat schematic block diagram. 8M b) Elucidate the working principles of VOR receiver.

7M

6. a) Explain the role of VOR in radio navigation system for aircraft. 8M b) Explain the factors affecting GPS position accuracy.

7M

Unit – IV

7. a) Explain the principle of operation of Inertial Navigation System (INS). 8M b) Give an account of components of Inertial Navigation System (INS).

7M

8. a) Explain the principles of ATC surveillance systems. 8M b) Explain the significance of collision avoidance system and ground proximity warning

system.

7M

Unit – V

9. a) Explain in detail about automatic flight control systems. 8M b) Give an overview of flight director systems.

7M

10. a) Elaborate in detail about flight management systems. 8M b) Explain the concept of Integrated Data Transfer methodology by use of MILS-STD-

1553/ARINC-429. 7M




HEAT TRANSFER (Aeronautical Engineering)



Unit – I

1. a) Define thermal conductivity (k) and explain the various factors on which it depends? Also explain why solids exhibit high ‘k’ compared to liquids and gases, and alloying a metal decreases its ‘k’.

5M

b) Derive three dimensional heat conduction equation in Cartesian coordinates for isotropic material.

10M

2. a) Explain types of initial and boundary conditions applied to solve heat transfer problems. 10M b) An insulated pipe of 30mm diameter (ε=0.9) is laid on a room at 300C. If the surface

temperature is 3000C and overall heat transfer coefficient is 7W/m2K. Calculate heat losses per 1m length of the pipe.

5M

Unit – II

3. a) Explain how fins can increase the rate of heat transfer. Mention the most common types of fins and sketch them.

6M

b) Calculate the rate of heat loss through the vertical walls of a boiler furnace of size 4m by 3m by 3m high. The walls are constructed from an inner fire brick wall 25cm thick of thermal conductivity 0.4W/m K, a layer of ceramic blanket insulation of thermal conductivity 0.2W/m K and 8cm thick, and a steel protective layer of thermal conductivity 55W/m K and 2mm thick. The inside temperature of the fire brick layer was measured at 6000 C and the temperature of the outside of the insulation 600C. Also find the interface temperature of layers.

9M

4. a) What are Heisler charts? Explain their significance in solving transient conduction problem.

5M

b) A motor body is 360mm in diameter (outside) and 240mm long. Its surface temperature should not exceed 550C when dissipating 340W. Longitudinal fins of 15mm thickness and 40mm height are proposed. The convection coefficient is 40W/m2 0C. Determine the number of fins required. Atmospheric temperature is 300C. Thermal conductivity=40 W/m 0C.

10M

Unit – III

5. a) Explain the Buckingham’s π-Theorem for dimensional analysis. 8M b) Air at 200C flows with a velocity 3m/sec. along the 40cm length of the plate maintained

at 600C. Calculate heat transfer from the plate. Take properties of air at mean film temperature.

7M

6. a) Explain Reynolds analogy. 5M b) A furnace door 1.5m high and 1m wide is insulated from inside and has an outer surface

temperature of 700C. If the surrounding ambient air temperature is at 300C. Calculate the steady state heat loss from the door. Take properties of the air at 500C.

10M

Cont…2

::2::

Unit – IV

7. a) Distinguish between film wise condensation and drop wise condensation. 5M b) Steam at 1000C is condensing on a pipe of diameter 20cm and its surface maintained at a

temperature of 900C. If pipe is vertical how long must it be to condense 100kg of steam per hour? Take properties of condensing water at mean temperature.

10M

8. a) Derive LMTD expression for Parallel flow heat exchanger. 5M b) Air enters a cooler at 1450C and 6.5m/sec. and is brought to 450C by passing through

tubes of 10mm diameter surrounded by water which enters the cooler at 150C and leaves at 300C. Assuming the heat extended is counterblow. Find the length of the pipe required if the waterside heat transfer coefficient is 200W/m2K. Take properties of condensing air at mean temperature.

10M

Unit – V

9. a) Write a short note on: i. Irradiation ii. Radiation shield

6M

b) The sun emits maximum radiation at λ=0.52μ. Assuming the sun to be a black body, calculate the surface temperature of the sun. Also calculate the monochromatic emissive power of the sun’s surface. Given λ max = 0.52 μ = 0.52 x 10-6m to find: i. Surface temperature, T ii. Monochromatic emissive power, Ebλ iii. Total emissive power, E

9M

10. a) Derive an expression for the following cases: i. Radiation exchange between two black surfaces ii. Radiation exchange between two gray surfaces connected by a single refractory

surface

9M

b) The filament of a 75W light bulb may be considered as a black body radiating into a black enclosure at 700C. The filament diameter is 0.10 mm and length is 5cm. Considering the radiation, determine the filament temperature.

6M




PROJECT PLANNING AND MANAGEMENT

(Civil Engineering)



Unit – I

1. a) Describe the role of management in project execution. 7M b) Explain the weaknesses in bar charts.

8M

2. a) Explain Milestone charts. In what specific ways are milestone charts superior to bar charts?

6M

b) A project consist of the following activities with inter relations of events. Draw a Network diagram:

Activity Event Identification Activity Event Identification

A (1, 2) E (2, 6)

B (2, 3) F (3, 6)

C (1, 3) G (3, 5)

D (1, 4) H (5, 6)

9M

Unit – II

3. a) Briefly explain about Three Time estimates. 9M b) What is meant by Slack time? How it influence the duration of project?

6M

4. a) What is meant by Critical activities? How it influence the duration of project? 7M b) Explain the following terms:

i. Expected time ii. Most likely time iii. Pessimistic time iv. Optimistic time durations in PERT analysis

8M

Unit – III

5. a) What is meant by Normal and Crash cost? How it influence the project cost? 7M b) What is meant by Resource Levelling? What are the rules involved?

8M

6. a) Define the Normal time and Crash time. 4M b) Draw the network diagram and find all the path with their normal and crash time as per

the table below. Also Find out the crash cost for each activity on per day basis:

Activity predecessor Time ( days) Normal Crash

Direct Cost Rs Normal Crash

A - 5 3 70 90

B - 7 5 90 120

C A 3 2 50 80

D B 6 5 60 70

E C,D 4 3 90 110

F E 8 6 80 90

11M

Cont…2

::2::

Unit – IV

7. a) What is the importance of Construction management in the project execution? 8M b) Explain the concept of scientific management.

7M

8. a) Describe the role and importance of psychology in management. 6M b) Explain the qualities of a manager, in detail. 9M

Unit – V

9. a) Write about different types of Organizations in Industry. 8M b) Write different types of safety arrangements in construction projects.

7M

10. a) What is the role of Labour laws in construction projects? Explain. 6M b) What is the importance of Training and skill development in a project? 9M




REMOTE SENSING AND GIS APPLICATIONS

(Civil Engineering)



Unit – I

1. a) Define remote sensing. Explain elements of remote sensing. 8M b) Discuss electromagnetic spectrum with a neat sketch.

7M

2. a) Define the term resolution and explain different types of resolutions. 8M b) Explain spectral properties of land, water and vegetation. 7M

Unit – II

3. a) What are the types of photogrammetry available today and explain about close range photogrammetry?

8M

b) Write explanatory notes on: i. Stereoscopy ii. Ground control

7M

4. a) Discuss the capabilities of GIS. 8M b) Discuss the components and functions of GIS. 7M

Unit – III

5. a) Explain the common methods to capture vector data from raster images. 8M b) Explain various raster data models.

7M

6. a) Explain the overall work flow in GIS. 8M b) Explain spatial and non-spatial data. 7M

Unit – IV

7. a) Explain about Visual Analysis methods. 8M b) Explain Computational Analysis methods.

7M

8. a) Explain Network Analysis with suitable examples. 8M b) Explain vector data analysis in detail. 7M

Unit – V

9. a) Discuss application of RS and GIS in rainfall-runoff relations of watersheds in detail. 8M b) Discuss the application of land use and land cover in water resources.

7M

10. a) Explain water depth estimation and bathymetry in detail. 8M b) Discuss applications of RS and GIS in drainage morphometry. 7M




FINITE ELEMENTS METHODS IN CIVIL ENGINEERING

(Civil Engineering)



Unit – I

1. a) Write in detail, the steps involved in FEM application to structural mechanics problems. 7M b) Write the points to be remembered while discretizing a structures choosing node.

8M

2. a) Explain the principle of “Reileigh Ritz” method in brief. 6M b) Using the principle of minimum potential energy derive the expressions for consistent

loads for body forces and surface forces. 9M

Unit – II

3. Determine the nodal displacement and element stresses for the stepped bar loaded as shown

in Fig.1 P1=100kN and P2=75kN. The details of each section of the bar is shown in table:

Portion Material E(GPa) Area(mm2)

A Steel 200 1200

B Aluminium 70 800

Fig.1

15M

4. Derive the strain displacement matrix for 2-noded beam element. 15M

Unit – III

5. Derive the stiffness matrix for a three noded constant strain triangular element.

15M

6. a) Explain plane stress, plane strain condition. Derive the stress-strain connectivity matrices in both the cases.

10M

b) Explain various methods of determination of shape functions. 5M

Unit – IV

7. The nodal displacements of a four node quadrilateral element shown in Fig.2 are given as:

U=[0.0 0.0 0.02 0.03 0.06 0.015 0.1 0.0]Tcm. Take E=200GPa and =0.25. Determine Jacobian, strain-displacement matrix at Gauss point (0.57735, 0.57735) and elasticity matrix assuming plain stress condition. All coordinates are in cm:

Fig.2

15M

Cont…2

::2::

8. a) Explain “Lagrange elements” for a two dimensional element. 6M b) Determine the Cartesian coordinates of the point P which has local coordinates ‘r’=0.8

and ‘s’=0.6 shown in Fig.3 below:

Fig.3

9M

Unit – V

9. Explain the formulation and computation of element properties for a four noded two dimensional element using isoparametric approach.

15M

10. Explain the derivation of stiffness matrix, body force and surface forces for axi-symmetry elements.

15M




ENVIRONMENTAL ENGINEERING-II

(Civil Engineering)



Unit – I

1. a) List out different sources of air pollutants and explain in detail. 7M b) Explain the principle, construction and working of Gravity settling chamber with a neat

sketch.

8M

2. a) List out Global effects of air pollutants. Explain Ozone layer depletion in detail. 7M b) Define Noise pollution. What are the remedies of Noise Pollution? Explain in detail. 8M

Unit – II

3. a) Explain the process of Reverse osmosis. 7M b) What do you understand by defluoridation? Discuss any one method in detail.

8M

4. a) Explain the process of ultra filtration. 8M b) Describe the Ion exchange process. 7M

Unit – III

5. a) Discuss different methods of Volume reduction. 7M b) Explain nitrification and denitrification in waste water treatment.

8M

6. a) Explain the methods of neutralization with respect to industrial wastewater. 8M b) Explain Sedimentation and Floatation in wastewater treatment. 7M

Unit – IV

7. a) What are the different sources and classification of solid waste? Explain in detail. 7M b) Explain Disposal of solid waste by composting method in detail.

8M

8. a) Write about collection and Transportation of solid waste. 7M b) List out Disposal methods of Solid Waste. Explain method of Land filling in briefly. 8M

Unit – V

9. a) Explain the properties of hazardous waste. 7M b) What do you understand by nuclear waste and describe it?

8M

10. a) Write about the biomedical waste. 7M b) Explain the methods for disposal of chemical waste. 8M




TRANSPORTATION ENGINEERING (Civil Engineering)



Unit – I

1. a) Explain different road patterns with neat sketches. 8M b) Compare the Nagpur and Bombay road development plans.

7M

2. a) Derive the expression for over taking sight distance with neat sketch. 7M b) A state highway passing through a rolling terrain has a horizontal curve of radius equal to

the ruling minimum radius. Design all the geometric features of the horizontal curve assuming suitable data. Take centrifugal acceleration as 0.6m/sec3.

8M

Unit – II

3. a) What are the basic requirements of at-grade intersection? 8M b) Explain the conflicts at various types of intersection with the help of neat sketches.

7M

4. a) Write about channelised Islands. 8M b) What are the advantages of grade separated intersection? 7M

Unit – III

5. a) Explain the behaviour of volume, speed and density studies with a neat sketch. 8M b) What are the uses of traffic volume study?

7M

6. a) Explain about Warning signs. 8M b) Write the difference between condition and collision diagram. 7M

Unit – IV

7. a) Draw a neat diagram of a permanent way and show its various components. Explain the working principles of the permanent way.

8M

b) What are the advantages and disadvantages of various types of sleepers?

7M

8. a) What are objectives and types of transition curve. How the length of transition curve is calculated on railway tracks.

8M

b) Explain different types of gradients in railways. Also explain the grade compensation on curves.

7M

Unit – V

9. a) Explain the aircraft characteristics in detail. 8M b) The length of a runway at mean sea level, standard temperature and zero gradients is

1600m. The site has an elevation of 140m, with a reference temperature of 33.6ºC.The runway has to be constructed with an effective gradient of 0.25%. Determine the actual length of the runway at site.

7M

10. a) Write a note on runway lighting system in airports. 7M b) Discuss the factors that are to be considered for site selection for an airport. 8M




NANO TECHNOLGY

(Aeronautical Engineering)



Unit – I

1. a) List the different types of bottom up approach for synthesis of Nano powder and explain Sol-gel preparation technique in details.

10M

b) What is quantum confinement? Briefly discuss about quantum wells.

5M

2. a) List few optical properties of Nano materials. How can you find the thickness of a thin film using optical properties?

10M

b) What is quantum wire? Mention its applications. 5M

Unit – II

3. a) Define carbon Nanotube. Explain the different types of carbon Nanotubes. 6M b) List the methods for producing carbon Nanotubes and explain any one of the method

with a neat sketch.

9M

4. a) Describe the mechanical, electrical and optical properties of carbon Nanotubes. 9M b) Mention different applications of carbon Nanotube. 6M

Unit – III

5. a) What is ion sputtering? Mention its advantages over other sputtering techniques. 5M b) What is an electron microscope and how is it superior to optical microscope? Name

different types of electron microscopes and how do TEM differ SEM.

10M

6. a) What is Laser Pyrolysis? Explain construction and working of Laser Pyrolysis to fabricate Nano materials.

8M

b) Explain the working of scanning tunneling microscopy (STM) with a neat sketch. 7M

Unit – IV

7. How core/shell Nano particles are used in drug delivery systems? Mention its disadvantages.

15M

8. Explain how Nano medicine is useful for bone tissue treatment. Mention its advantages. 15M

Unit – V

9. a) Explain the concept of the tunnel magneto resistance. Discuss briefly how Magnet tunnel junctions are used as non-volatile memories.

9M

b) Write a short note on ion beam lithography.

6M

10. a) What is a single electron transistor? How do you explain tunneling effect in SET? Discuss its uses and limitations.

9M

b) Distinguish between Deep UV lithography and X-Ray based lithography. 6M




PAVEMENT ANALYSIS AND DESIGN

(Civil Engineering)



Unit – I

1. a) Differentiate between flexible pavement and rigid pavement. 8M b) Calculate ESWL of a dual wheel assembly carrying 2044kg each for trial pavement

thickness values of 150, 200 and 250mm. Centre to centre spacing between the 2 tyres = 270mm and clear gap between the walls of tyres =110mm.

7M

2. a) What are the factors affecting design of pavements. 8M b) Using Burmister’s theory, calculate the expected pavement surface deflection for a

300mm stabilized gravel pavement structure lying on a murrum subgrade of infinite depth. Assume the average modulus of elasticity of stabilized gravel is 344,500kN/m2 and that of the murrum subgrade to 68,900kN/m2. Also assume uniform surface loading of 689kN/m2 distributed over a circular area of radius 150mm. Assume F=0.41.

7M

Unit – II

3. a) Discuss in brief the factors affecting design of rigid pavements. 7M b) Calculate the stresses at interior and corner regions of a concrete pavement using

Westergaard’s original equation on the basis of following data: Wheel load = 4100kg Modulus of elasticity of concrete = 3.0x105kg/cm2 Pavement thickness = 15cm Poisson’s ratio = 0.15 Modulus of subgrade reaction = 3.0kg/cm2 Radius of contact area = 15cm

8M

4. a) Explain Westergaard’s analysis of stresses in rigid pavements. 7M b) Discuss the factors causing warping stresses in rigid pavement. 8M

Unit – III

5. a) Enumerate the steps for designing dowel bars. 8M b) Discuss about soil cement stabilization. Where it can be used? What are the uses of soil

cement stabilization?

7M

6. a) Briefly explain IRC method of rigid pavement design. 8M b) The design thickness of CC pavement is 26cm with load of 12000kg on single axle

characteristic strength of concrete of M-40 is 400kg/cm2. The radius of relative stiffness is 62.2cm. If the Elastic modulus of dowel bar is 2x106kg/cm2, modulus of dowel concrete interaction is 41,500kg/cm2 and joint width is 1.8cm, design the dowel bar for 40% load transfer considering edge loading.

7M

Unit – IV

7. a) Explain the properties of aggregates and bitumen. 7M b) Explain any two test procedures of aggregates and bitumen with neat sketches. 8M

Cont...2

::2::

8. a) Explain the construction of WBM roads. 7M b) Explain the step by step procedure of construction of CC roads. 8M

Unit – V

9. a) Explain the various types of failures in concrete pavements and their causes with sketches. Suggest remedial measures for repairing them.

8M

b) Write a detailed note on special repairs in flexible pavements.

7M

10. a) Describe various pavement structural evaluation techniques and their suitability. 8M b) Mention different types of overlays and explain the design of concrete overlays. 7M

Documents

Hall Ticket No: Question Paper Code: A1524 (AUTONOMOUS) B. … · 2018-12-10 · 4. a) With neat diagram explain intra – MSC handover. 10M b) Explain hidden and exposed terminals