ADVANCED CONTROL SYSTEMS JNTU previous years question papers

ADVANCED CONTROL SYSTEMS JNTU previous years question papers

2011

ADVANCED CONTROL SYSTEMS

(Electrical & Electronic Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. Suppose if the system equations are known in Jordan form. How do you test the properties of controllability? Explain using a state model. [16]

2. State, prove and explain Lyapunovs stability theorm. Also explain what are the suficient conditions of stability. [16]

3. (a) Explain the dierent methods used to find the state feedback gain matrix and compare them?
(b) Consider a linear system described by the transfer function Y (s)
u(s) = 10s(s+2)(s+1)
Design a feed back controller with a state feedback so that the eigen values of the closed loop system are at -2,-1 ± j1. [6+10]

4. (a) Explain Minimum - Time problem?
(b) Explain State Regulator problem in brief? [8+8]

5. Illustrate with an example the problem with terminal time t1 fixed and x (t1) free.
[16]

6. (a) State and prove optimal control problem based on dynamic programming in discrete time system
(b) Explain the principles of causality and invariant imbedding. [16]

7. (a) Explain the popular inherent nonlinear elements and their functionalities.
(b) Derive the Describe function for an on-o nonlinearity. [6+10]

8. Draw a phase-plane portrait of the system defined by [16]
? x1 = x1 + x2
? x2 = 2x1 + x2

ANALOG COMMUNICATIONS JNTU previous years question papers

ANALOG COMMUNICATIONS JNTU previous years question papers

2011

ANALOG COMMUNICATIONS
( Common to Electronics & Communication Engineering and Electronics & Telematics)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. (a) Explain the collector modulation method for generating AM wave with a neat circuit diagram and waveforms.
(b) An AM amplifier provides an output of 106 W at 100% modulation. The internal loss is 20 W
i. What is un-modulated carrier power?
ii. What is the side band power? [10+6]

2. (a) What is the need to suppress the carrier in AM wave? Write the expressions of the DSB-SC wave in time and frequency domain. Draw its waveform and spectrum.
(b) When the modulation percentage is 75, an AM transmitter produces 10 KW.How much of this is carrier power? What would be the percentage of power saving if the carrier is suppressed before transmission took place. [8+8]

3. (a) Explain VSB. What is the need for VSB transmission? What is the transmission bandwidth of VSB?
(b) A 400Wcarrier is modulated on depth of 75 percent; calculate the total power in the modulated wave in the following forms of AM:
i. A3E
ii. DSB-SC
iii. J3E. [8+8]

4. (a) How do you distinguish the two cases of frequency modulation (FM) namely,the narrow-band FM and the wideband FM?
(b) FM is called a ‘Constant Band Width’ system-Justify with suitable illustrations.
(c) In a FM system if modulation index is doubled by halving modulating frequency, what will be the effect on the maximum deviation? [6+6+4]

5. Explain the noise performance of SSB - SC receiver and prove its S/N Ratio is unity. [16]

6. (a) What is frequency drift? What are the factors that influence the frequency drift How is it avoided?
(b) Explain about radio broadcast transmitters with the help of block diagram.7. (a) Describe the circuit of an FET amplitude limiter, and with the aid of the transfer characteristic explain the operation of the circuit.
(b) What can be done to improve the overall limiting performance of an FM receiver ? Explain the operation of the double limiter and also AGC in addition to a limier. [16]

8. (a) Define and describe pulse position modulation, and explain with waveforms how it is derived from PWM.
(b) Explain clearly the generation and demodulation of PWM with the help of necessary diagram.

Advanced Computing Concepts JNTU previous years question papers

2011

ADVANCED COMPUTING CONCEPTS
( Common to Information Technology and Computer Science & Systems
Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. (a) Write about the protocols of resource layer?
(b) Write the visible collective layer services in a grid computing system. [8+8]

2. Draw the diagram of e-business on demand environment based on open standard and shared components? [16]

3. (a) What do we need for efficient cluster computing.
(b) Write the techniques to optimize communication. [8+8]

4. Explian in detail the GATOSTAR architecture. [16]

5. Illustrate the architecture of microkernel of NanOS. [16]

6. (a) Give the architecture of Haptic device model. Explain how it works.
(b) How is character’s recognized in graffiti input method? [8+8]

7. (a) Give the characteristics of IrDA.
(b) Give an overview of different generations of Mobile Phone Communications?
[8+8]

8. Give the two representations of CNOT gate, Briefly explain the CNOT gate. Give Truth table.

Advanced Computing Concepts JNTU previous years question papers

2011

ADVANCED COMPUTING CONCEPTS
( Common to Information Technology and Computer Science & Systems
Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. What are the Components of Grid Computing Systems/Architecture? [16]

2. Write about NGOSS frame work. [16]

3. (a) Define latency, asymptotic bandwidth.
(b) What are the techniques for large data transfers?
(c) Give the linear relation of end to end delay. [4+6+6]

4. Explian in detail the GATOSTAR architecture. [16]

5. Write about replication models of HIDRA. Write their advantages/disadvantages.
[16]

6. (a) Illustrate Roaming Environment with a neat diagram
(b) What is location based services. Give Examples [8+8]

7. (a) Write the features of Suns KVM
(b) Mention some of class Libraries of IBMs visual Age Micro edition. [8+8]

8. Write about Fredkin gate. How can you say it is universal? Give an example.

Advanced Computer Architecture previous question papers JNTU

Advanced Computer Architecture previous question papers JNTU

2010

Advanced Computer Architecture previous question papers JNTU - 1

Time: 3 hours
Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks

1.a) Give the reasons why cache coherence is an accepted requirement in small scale multiprocessors?
b) Draw the state transition diagram for an individual cache block in a directory based system.[8+8]

2. What are the challenges of multiple-issue processors? Explain. [16]

3. What are the two factor that speedup depends on. Discuss? [16]

4. What are the three ideas that hardware speculation make use of? Explain. [16]

5. Discuss in detail conditional branch operations? Give examples for each? [16]

6. (a) Define the performance parameters of the interconnection networks.
(b) Assume a network with a bandwidth of 1000M bits/sec has a sending overhead of 80microsec and receiving overhead of 100microsec.Assume two machines one wants to send a 10,000byte message to the other [including header] and a message format allows 10,000bytes in a single message. calculate the total latency to send a message from one machine to another in a SAN. Assuming they are 10m apart. [8+8]

7. Discuss in detail about the RAID levels. [16]

8. Explain the techniques in increasing memory bandwidth. [16]