SPECIAL ELECTRICAL MACHINES - limat.org · PDF fileIV B.Tech II Semester Regular Examinations,...

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IV B.Tech II Semester Regular Examinations, April/May - 2014

SPECIAL ELECTRICAL MACHINES

(Electrical and Electronics Engineering)

Time : 3 hours Max. Marks: 75

Answer any Five Questions

All Questions carry equal marks

*****

1 a) Explain the principle of operation of Switched Reluctance Motors. [8]

b) Discuss the torque production mechanism in Switched Reluctance Motors. [7]

2 a) List out areas of applications & suitability of stepping motors.

[8]

b) Explain different types of variable reluctance stepping motors. [7]

3 a) Give the advantages and application of BLDC motors. [8]

b) Explain the construction details of radial flux BLDC motor

[7]

4 a) What are linear motors? Give their applications. [8]

b) Explain principle of operation of linear induction motor.

[7]

5 a) What is hysteresis loop? How permanent magnets can be selected for dc

motors? Explain clearly.

[8]

b) Why Permanent magnet machines have high torque /weight ratio? Explain

clearly

[7]

6 a) Describe characteristics of stepper motor for open loop control. [8]

b) Explain closed loop control of stepper motor with the help of schematic block

diagram/

[7]

7 a) Explain control principle of switched reluctance motor for fraction type loads [8]

b) Describe clearly rotor position sensing schemes of brushless dc motor. [7]

8 a) Compare AC and DC traction systems and what are merits and demerits [8]

b) Explain clearly single sided linear induction motor for the application of

traction drive

[7]

Code No: R42024 Set No. 1 R10

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*****

1 a) List the main features of Switched Reluctance Motors. [8]

b) Explain the procedure in designing stator and rotor pole arc for switched

reluctance motor.

[7]

2 a) Explain constructional details of stepper motors [8]

b) Explain multi- stack VR stepper motors. [7]

3 a) What are the advantages and disadvantages of Brushless DC machines

compare to conventional DC motors.

[8]

b) Explain operating principle of Brushless DC motor with the help of diagrams. [7]

4 a) Explain the construction & working Principle of Linear Induction Motor [8]

b) What are advantages & disadvantages of Linear Induction Motor compare to

conventional induction motor and also list out the application of Linear

Induction Motor

[7]

5 a) List out the reasons why Permanent materials used in DC Machines [8]

b) Explain the significance of B-H characteristics of a permanent magnets [7]

6 a) Describe the closed loop control of stepper motors [8]

b) Describe the characteristics of stepper motors for open loop control [7]

7 a) Discuss how HALL sensors can be used for position sensing of PM BLDC

motor.

[8]

b) Describe the switching logic of a 3- phase 4-pole PM BLDC motor [7]

8 a) What is the selection criterion of motors for electric traction application?

explain

[8]

b) What are the merits and demerits of ac traction motors compare to dc traction

motors

[7]


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*****

1 a) Explain different power converter configurations for Switched reluctance

motor

[8]

b) Explain briefly design aspects of Switched reluctance motor [7]

2 a) Describe constructional aspects of stepper motor [8]

b) What are hybrid stepping motors? Explain. [7]

3 a) Explain operation of brushless dc motor as variable speed synchronous motor [8]

b) Explain clearly the constructional details of brushless dc motor [7]

4 a) What are different types of LIM? Explain the operation of a short stator Linear

Induction Motor

[8]

b) What are the application of Linear Induction Motor and list out advantages &

disadvantages of Linear Induction Motor

[7]

5 a) What is B-H curve? Explain equivalent circuit of a Permanent magnet. [8]

b) Why Permanent magnet machines have high torque /weight ratio? Explain [7]

6 a) Explain closed loop control of stepper motors [8]

b) Compare open loop and closed loop control of stepper motor [7]

7 a) Describe control of switched reluctance motor for fraction type loads. [8]

b) Explain briefly different types of rotor position sensing schemes of brushless

dc motors

[7]

8 a) What are the different types AC motors suitable for electric traction? Explain

the reason for selection of the motor

[8]

b) Explain clearly single sided linear induction motor for traction drive

application.

[7]


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*****

1 a) Describe working principle of Switched reluctance motor with the help of

diagram.

[8]

b) What are the advantages and disadvantages of Switched reluctance motors and

mention the applications of Switched reluctance motors

[7]

2 a) Explain single stack VR stepper motors [8]

b) What is Bifilar winding? Explain its significance. [7]

3 a) Explain the construction details of radial flux BLDC motor [8]

b) What are the advantages of Brushless DC machines over AC motors and

explain the principle of operation of Brushless DC motor

[7]

4 a) Explain the application of Linear Induction motors for electric traction. [8]

b) What are different types of Linear Induction motor? Mention advantages &

disadvantages of Linear Induction motors

[7]

5 a) What is the equivalent circuit of a Permanent Magnet? Explain B-H loops of

different Permanent Magnets

[8]

b) Why Permanent magnet machines have high torque /weight ratio? explain it

clearly

[7]

6 a) Explain different types of controls of stepper motors [8]

b) Describe the characteristics of stepper motor open loop drive [7]

7 a) Explain different control techniques of brushless dc motors [8]

b) List out different rotor position sensing schemes of brushless dc motor and

explain any one of the schemes clearly

[7]

8 a) What are the different types of dc motors suitable for electric traction

application? explain the reason clearly

[8]

b) What kind of ac motors is more suitable for traction application? Explain it

clearly

[7]


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SATELLITE COMMUNICATIONS

(Electronics and Communication Engineering)




*****

1 a) Explain about LEO and MEO satellite systems [8]

b) Explain the general and technical characteristics of a satellite communication

system

[7]

2 a) Define Kepler’s laws of planetary motion with relevant mathematical

expressions

[8]

b) An earth station has a longitude of 99.50 west and latitude of 29.5

0 north. The

satellite has a longitude of 1430 west. Find the azimuth and elevation angle.

[7]

3 a) Draw and explain the simplified double conversion transponder (bent pipe) for

6/4 GHz band

[8]

b) Draw a diagram to show different forces on a synchronous satellite and explain

about attitude control system

[7]

4 a) Discuss in detail about rain effects in ku band [8] b) An earth station antenna has a diameter of 35 m, has an overall efficiency of

69%, and is used to receive a signal at 4350 MHz. at this frequency the system

noise temperature is 78K when the antenna points at the satellite at an elevation

angle of 280. What is the earth station G/T ratio under these conditions?

[7]

5 a) Compare and contrast pre assigned FDMA and demand assigned FDMA [8]

b) Discuss clearly the CDMA system with example [7]

6 a) Illustrate the operations required for receiving a signal from the satellite using

multicarrier earth station

[8]

b) Illustrate the design of electromagnetic-horn radiator [7]

7 a) What are the important factors that influence the design of any satellite

communication system? Discuss

[8]

b) What do you mean by Globalstar, Ellipso? Explain in detail [7]

8 a) Draw the general arrangement of position location with GPS and explain about

GPS in detail

[8]

b) Draw the block diagram of C/A code generator and explain [7]


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*****

1 a) Explain clearly about GEO satellite systems [8]

b) Write about the future trends of satellite communications [7]

2 a) Derive expression for the radius of geosynchronous orbit [8]

b) Write about the orbital effects in communication system performance [7]

3 a) What are two approaches used for equipment reliability in the event of failure

of communication capacity of the satellite? Explain

[8]

b) Draw and explain the simplified single conversion transponder (bent pipe) for

6/4 GHz band

[7]

4 a) Illustrate the procedure for ku band down link design [7]

b) Consider a 4GHz receiver with the following gains and noise temperatures:

Tin=25K, TRF=50K, TIF=1000K, Tm=500K, GRF=23 db, GIF=30db. Calculate

the system noise temperature assuming that the mixer has a gain Gm=0db.

Recalculate the system noise temperature when the mixer has a 10db loss.

[8]

5 a) Discuss various modulation and multiplexing techniques used with satellite

links

[8]

b) Draw the frame structure and explain TDMA [7]

6 a) Horn antennas are commonly used as primary radiators in reflector systems,

Justify?

[8]

b) Draw the block diagram of TWTA transmitter required for multiple transmitter

chains and explain.

[7]

7 a) What are the four important factors that influence the design of any satellite

communication system? Explain

[8]

b) Discuss in detail about Molniya and Elliptical orbits [7]

8 a) Discuss in detail the process of satellite signal acquisition [8]

b) What are the major sources of error in GPS receiver? Discuss in detail [7]


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*****

1 a) Write an account of the evolution and growth of communication satellites [8]

b) What are the applications of satellites? Explain [7]

2 a) What are look angles? How do you determine? Explain with the help of neat

diagrams

[8]

b) What are orbital parameters required to determine a satellite’s orbit? Name

and explain them.

[7]

3 a) The earth subtends an angle of 170 when viewed from geostationary orbit.

What are the dimensions and gain of the horn antenna that will provide global

coverage at 4 GHz.

[8]

b) Draw the bathtub curve for the probability of failure and explain clearly the

concepts of equipment reliability, space qualification of communication

satellites

[7]

4 a) Illustrate the ku band uplink design [8]

b) An earth station antenna has a diameter of 30 m, has an overall efficiency of

68%, and is used to receive a signal at 4150 MHz. at this frequency the

system noise temperature is 79K when the antenna points at the satellite at an

elevation angle of 280. What is the earth station G/T ratio under these

conditions?

[7]

5 a) What is the basic principle of a direct sequence spread spectrum system and

explain

[8]

b) Explain about FDMA and draw the frequency plan for two C-band

transponders using FDMA

[7]

6 a) Draw the block diagram of a general earth station and explain [8]

b) Draw and explain the receiver subsystem for multicarrier earth station [7]

7 a) Discuss in detail the delay and throughput considerations of satellite

communication link

[8]

b) What are different satellite constellation designs? Explain any two of them [7]

8 a) What is the technique used to increase the accuracy of GPS measurements?

Discuss in detail

[8]

b) Write short notes on GPS Receiver Operation [7]


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*****

1 a) Draw the general structure of a satellite communications system and explain [8]

b) Write about satellite frequency allocations and band spectrum [7]

2 a) Explain as to how a satellite is placed into geostationary orbit from earth? [8]

b) What is station keeping? Explain in detail the N-S and E-W station keeping. [7]

3 a) Draw the typical telemetry, tracking, command, and monitoring system and

explain how it is helpful in successful operation of a communication satellite

[8]

b) What are the four main types of antennas used in satellites? Explain any two

with neat diagrams

[7]

4 a) Write all the ten steps involved in the satellite communication link design

procedure

[8]

b) Thermal noise in an earth station receiver results in a (C/N)dn ratio of 20 db. A

signal is received from a bent pipe transponder with a carrier to noise ratio

(C/N)up=20db. What is the value of overall (C/N)0 at the earth station? If the

transponder introduces inter modulation products with (C/I) ratio of 24db.

What is the overall (C/N)0 ratio at the receiving earth station

[7]

5 a) What is the first multiple access technique used in satellite communication

systems? Explain in detail.

[8]

b) Suggest a multiple access technique that can be preferred in satellite

communication link when traffic from earth station is intermittent? Discuss.

[7]

6 a) Draw the basic geometry of reflector antenna and discuss its performance. [8]

b) What is the equipment required for terrestrial interface? Explain. [7]

7 a) Compare different satellite low earth orbits with their advantages and

disadvantages.

[8]

b) Discuss the coverage and frequency considerations with regard to low earth

orbits.

[7]

8 a) What is the basic requirement of GPS? Explain in detail about the position

location using GPS.

[8]

b) Write short notes on Satellite Signal Acquisition. [7]


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HUMAN COMPUTER INTERACTION

(Common to Computer Science & Engineering and Information Technology)




*****

1 a) Define HCI. What is the importance of good design? [8]

b) Write a brief history of screen design. [7]

2 a) Discuss about the characteristics of a Web interface. [8]

b) What re the characteristics of the GUI? Explain. [7]

3 a) Explain about business definition and requirement analysis. [8]

b) What are the human considerations in design? Explain. [7]

4 a) Discuss about display/read-only screens. [8]

b) What are screen elements? Explain. [7]

5 a) Discuss about the phrasing of the menu. [5]

b) What are Window operations? Explain. [5]

c) Explain about the selection of proper device-based controls. [5]

6 a) Briefly discuss about creation of meaningful graphics, icons and images. [8]

b) What is a color? What are color uses? What are the possible problems with

colors?

[7]

7 Discuss in detail about Backus-Naur Form (BNF) with examples. [15]

8 Explain the following:

a) Direct-control pointing devices [5]

b) Discrete word recognition [5]

c) Function keys [5]


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*****

1 a) Write the chronological history of the Internet. [8]

b) What are the benefits of good design? Explain. [7]

2 a) Write about the merits of graphical systems. [8]

b) Briefly describe the differences between printed page and Web page design. [7]

3 a) Discuss about interaction of people with computers. [8]

b) Explain in detail about determining basic business functions. [7]

4 a) What are various types of statistical graphs? Explain. [8]

b) Describe reading, browsing and searching on the Web. [7]

5 a) What are the characteristics of device-based controls? [5]

b) What are Window characteristics? [5]

c) How to format on Menus? Explain. [5]

6 a) Discuss about components of Multimedia. [8]

b) Explain in detail about choosing colors. [7]

7 Explain in detail about interface-building tools. [15]


a) Indirect pointing devices [5]

b) Speech recognition [5]

c) Display technology [5]


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*****

1 a) Write the chronological history of GUI. [8]

b) Discuss about the blossoming of the WWW. [7]

2 a) What are the disadvantages of graphical systems? Explain. [8]

b) Describe about the popularity of web-user interface. [7]

3 a) What are design standards? Explain. [5]

b) Describe the User’s knowledge and experience. [5]

c) Write any five human characteristics in design and explain. [5]

4 a) Explain about screen navigation and flow. [8]

b) What are the technological considerations of interface design? Explain. [7]

5 a) What are structures of menus? Explain. [5]

b) Describe various types of Windows. [5]

c) How to select the proper device-based controls? [5]

6 a) What is an Icon? Explain different icons in detail. [5]

b) Explain about the text for Web pages. [5]

c) Describe choosing colors for statistical graphical screens. [5]

7 Briefly discuss about Microsoft Visual Studio. [15]


a) Printers [5]

b) Voice information systems [5]

c) Fitts’ Law [5]


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*****

1 a) Give a brief introduction of the GUI. [8]

b) Discuss about the importance of good design. [7]

2 a) What is the concept of direct manipulation? Explain. [8]

b) Distinguish between GUI and Web page design. [7]

3 a) What are the User’s tasks and needs? Explain. [5]

b) How people interact with computers? Explain. [5]

c) Describe developing conceptual models. [5]

4 Discuss in detail about visually pleasing composition. [15]

5 a) What are the Window operations? Explain. [5]

b) Explain about the components of a Window. [10]

6 a) How to choose colors? Explain. [7]

b) Explain the following with respect to Icons:

(i) Types (ii) Characteristics (iii) Usability (iv) Choosing

[8]

7 What are six main criteria for finding the right tool? Explain in detail. [15]


a) Comparison of pointing devices [5]

b) Speech and auditory interfaces [5]

c) Mobile device displays [5]


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IV B.Tech II Semester Supplementary Examinations, April/May - 2014

DIGITAL CONTROL SYSTEMS





*****

1 a) Explain the operation of ideal sampler. [8]

b) Describe the data hold circuits with a neat sketch.

[8]

2 a) Consider the function y(k), which is a sum of functions x(h), where

h=0,1,2,…,k such that where

y(k)=0 for k<0. Obtain the z transform of y(k).

[8]

b) Obtain the inverse z transform of

by using the inversion integral method.

[8]

3 a) Derive the expression for pulse transfer function. [7]

b) Assume that a sampled signal X*(s) is applied to a system G(s) and the output

of G(s) is Y(s) and y(0+)=0. Y(s)=G(s)X*(s) using the relationship

. show that

[9]

4 a) Write the controllable and diagonal canonical forms? [7]

b) Consider a discrete linear data control system, whose input-output relation is

described by the difference equation

initial conditions are . Test the state controllable and

observable canonical forms?

[9]

5 a) Explain the concept of controllability and observability? [8]

b) Investigate the controllability and observability of the following system

[8]

6 a) Discuss the stability analysis of discrete control system using Routh stability

Criteria.

[8]

b) Using Jury’s stability criterion, determine the stability of the following discrete

time systems

(i) (ii)

[8]

Code No: K0223 Set No. 1 R07

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7 Consider the digital control system shown. Design a digital controller in the w

plane such that the phase margin is 500, the gain margin is at least 10

dB, and the static velocity error constant kv is 2 sec-1

. Assume that the

sampling period is 0.2 sec. [16]

[16]

8 Discuss the necessary and sufficient conditions for design of state feedback

controller through pole placement?

[16]

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*****

1 a) Explain the examples of data control systems of the following

(i) A step motor control system

(ii) A digital computer controlled rolling mill regulating system

[8]

b) Derive the transfer function of zero order hold device?

[8]

2 a) Obtain the Z-transform of the following where ‘a’ is a

constant.

[8]

b) Obtain the inverse Z-transform of the following

(i)

(ii)

[8]

3 a) Explain the mapping between s-plane and z-plane with a neat diagram. [7]

b) The input output of a sampled data system is described by the difference

equation . Determine the pulse transfer

function, the initial conditions are .

[9]

4 a) Write the state transition matrix and its properties? [8]

b) Obtain the state transition matrix of the following discrete time system

Where

[8]

5 Consider the following pulse transfer function system

Show that the state space representation is state controllable but not observable

and vice versa.

[16]

6 a) Construct the Jury stability table for the following characteristic equation

where a0>0. Write the stability

conditions.

[8]

b) Consider the system described by Where x(k) is the input and y(k) is the

output of the system. Determine the stability of the system.

[8]


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7 a) Write the design procedure of lead-lag compensator in w-plane. [8]

b) List out the transient response specifications.

[8]

8 a) Derive the ackerman’s formula? [7]

b) Draw the block diagram of full order observer and explain? [9]

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*****

1 a) Explain about the weighted resistor 3 bit D/A converter? [8]

b) List out the advantages and disadvantages of digital control systems?

[8]

2 a) Obtain the z-transform of the elementary functions

(i) Unit step function (ii) Exponential function

[10]

b) Find the z-transform of

[6]

3 a) Solve the following difference equation

y(k+2)+3y(k+1)+2y(k)=0; y(-1)= -1/2, y(-2)=3/4.

[8]

b) Obtain the pulse transfer function of the system

[8]

4 a) Derive the expressions for discrete time state, output and pulse transfer function? [8]

b) Obtain the discrete time state, output and pulse transfer functions of the

following continuous time system

which may be

represented in state space by the equations

[8]

5 a) State the relation between the controllability and observability? [8]

b) Consider the following pulse transfer function

. Check this system is completely state controllable or not.

[8]

6 a) Discuss (i) constant frequency loci (ii) Constant damping loci [8]

b) Examine the stability of the following characteristic equation.

[8]

7 a) Explain the design procedure of digital controller through bilinear

transformation.

[8]

b) Describe the lag and lead compensator?

[8]

8 a) Discuss about the state observation? [7]

b) Explain the reduced order observer with necessary equations? [9]


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*****

1 a) Write the two examples of digital control systems? [8]

b) With the help of diagram, explain the successive approximation A/D

converter?

[8]

2 a) State and prove the final value theorem. [8]

b) Given the z transform

Where a is a constant and T is the sampling period, determine the inverse z

transform x(kT) by use of the partial fraction expansion method.

[8]

3 a) Solve the following difference equation: Where X(0)=1 and X(1)=2; the input function U(k) is given by

U(k)=1, if k=0,1,2…

[10]

b) Obtain the pulse transfer function of the system

[6]

4 Determine the inverse of the matrix (ZI-G), Where

,

Obtain Gk

[16]

5 a) Derive the condition for the complete observability of the discrete time system. [8]

b) Consider the system defined by

Determine the conditions on a,b,c and d for complete state controllability and

complete observability.

[8]

6 a) Explain the stability analysis of closed loop systems in the z plane. [7]

b) Determine the stability of the following discrete time system.

[9]


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7 Explain in detail about the digital PID controllers with neat schematic? [16]

8 a) Derive the necessary conditions for arbitrary pole placement? [7]

b) Consider the system ,

Design a full order

observer. The desired eigen values of the observer matrix are λ1λ2=0.5±j0.5.

[9]

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Code No: K1222/R07 Set No. 1

IV B.Tech II Semester Supplementary Examinations, Apr/May 2014NETWORK MANAGEMENT SYSTEMS

(Information Technology)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

? ? ? ? ?

1. What is Network topology? Explain point-to-point and multi point configuration.[16]

2. Explain the SNMP data types and tags with suitable examples. [16]

3. Explain the SNMP GetNextRequest operation for the MIB with suitable example.[16]

4. What are the sub modules involved in SNMPv2 module? Explain them in detail.[16]

5. (a) What is the use of entrystatus datatype. Explain different textual conventionspresent in it.

(b) Write about the filter group and the packet capture group in RMON1.[8+8]

6. (a) Give brief explanation of OSI information model and SNMP model.

(b) Explain about TMN service interfaces. [8+8]

7. (a) Explain the use of traffic load monitoring.

(b) Give brief description about protocol analyzer with RMON.

(c) What are different network routing tools? Explain. [6+6+4]

8. (a) Explain the functional block diagram of DMI 2.0.

(b) Explain any commercial network product for EWM. [10+6]

? ? ? ? ?

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? ? ? ? ?

1. Explain the basic communication architecture with suitable example. [16]

2. Explain in detail about the network management standards. [16]

3. (a) Explain about the administrative model of internet management?

(b) Describe about the SNMP access policy in detail. [8+8]

4. Describe the following in detail:

(a) The SNMP Bilingual Manager

(b) The SNMP Proxy server. [16]

5. (a) Explain the various functions and tables associated with Ring station andSource routing group of RMON token ring.

(b) Describe briefly about functions and tables that are related to network layermatrix and application level matrix group of RMON2 MIB. [8+8]

6. (a) Explain the operations system for testing transmission with a neat diagram.

(b) Discuss the operations system for testing transmission.

(c) Explain the trunk systems of TMN model. [6+6+4]

7. (a) How communication is achieved between RMON and the protocol analyzer?

(b) Give brief description about traffic load monitoring. [8+8]

8. What are the different levels in JMX architecture? Explain them in detail. [16]

? ? ? ? ?

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? ? ? ? ?

1. List the differences between ISDN and frame relay services. [16]

2. Explain in detail about SNMP management from a system point of view. [16]

3. Explain the SNMP GetRequest operation for the MIB. [16]

4. Describe the data structure of SNMPv2 PDUs with generic PDU message structure.[16]

5. (a) Explain the various functions and tables associated with Ring station andSource routing group of RMON token ring.

(b) Explain the data gathering module in RMON1. [8+8]

6. (a) Explain the operations system for traffic measurement.

(b) Give brief description about TMN conceptual model. [8+8]

7. (a) Name some tools that are used for monitoring unix network status and explainthe same.

(b) Explain briefly about multiple NMS configuration. [8+8]

8. (a) In detail explain the JDMK.

(b) Explain the importance of java management extensions. [10+6]

? ? ? ? ?

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? ? ? ? ?

1. Describe about the logical network model with an example. [16]

2. (a) What are two-tier organization models?

(b) What is the intermediate agent that is introduced between Managed object &network manager? Explain in detail. [8+8]

3. What is protocol entities? Explain about the encapsulated SNMP message in detail.[16]

4. What are Notification Definitions? Explain the Notification type macro the helpof an example. [16]

5. (a) Explain the various functions associated with RMON1 MIB.

(b) Draw the diagram showing network configuration with RMONs. Explain.[8+8]

6. Write short notes on the following.

(a) TMN operations systems functions.

(b) TMN interfaces.

(c) service management layer of TMN.

(d) Implementation of TMN by using OMNI point. [4×4 =16]

7. (a) Draw and explain Cabletron spectrum platform architecture.

(b) Give brief explanation about HP’s distributed management platform. [10+6]

8. (a) With the help of a neat diagram explain the WM1 architecture.

(b) Explain briefly about Desktop management interface block diagram. [8+8]

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Code No: L0421/R07 Set No. 1

IV B.Tech II Semester Supplementary Examinations, Apr/May 2014EMBEDDED AND REAL TIME SYSTEMS(Electronics & Communication Engineering)

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

All Questions carry equal marks? ? ? ? ?

1. Explain the following: [4+4+4+4]

(a) D flip flop

(b) Hold Time

(c) Setup Time

(d) Overloaded signal.

2. (a) Explain how microprocessor selects a device like ROM, RAM memory or anyother device with a neat diagram.

(b) What are the various stages involved in microprocessor’s execution of instruc-tions? [8+8]

3. (a) Explain briefly about Mealy-type FSM.

(b) Define the following terms: finite-state machines, concurrent processes, real-time systems, and real-time operating systems. [6+10]

4. (a) What is IrDA interface? What are its advantages and limitations?

(b) Where is IEEE 1394 interface used? Explain the protocol architecture of IEEE1394? [8+8]

5. Taking suitable examples explain how to :

(a) Acquire a Mutex

(b) Query a Mutex

(c) Wait on a Mutex. [5+5+6]

6. With suitable examples explain how to:

(a) Query a Mailbox

(b) Post a message in a Mailbox

(c) Read message from a Mailbox. [5+6+5]

7. The Serial controller 16550 is extensively used in embedded system. Explain thebit Configuration of the following registers of this controller

(a) Receiver Buffer Register (RBR)

(b) Transmitter holding Register (THR)

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(c) Divisor latch low Register (DLLR)

(d) Divisor Latch High Register (DLHR)

(e) Interrupt enable Register (IER)

(f) Interrupt Identification Register (IIR)

(g) FIFO Control Register (FCR)

(h) Line Status Register (LSR) [8 ×2]

8. Explain different general approaches to improve designer productivity with respectto embedded system design. [16]

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1. (a) Explain about various memories used in Embedded Systems.

(b) What is timing diagram? Draw and explain timing diagram for a NAND gate.[8+8]

2. (a) What is DMA operation in a computer? Why it is required in a computer?Clearly explain how it is implemented?

(b) Write notes on microcontrollers and the peripherals usually associated with inthe processor. [8+8]

3. (a) Give the differences between Computation model and languages.

(b) Write notes on Windows CE and QNX. [8+8]

4. (a) Which are the devices that can be connected through IEEE 1394 Bus? Explainits limitations.

(b) Explain about Ethernet LAN Protocol Architecture and give brief descriptionabout each protocol. [6+10]

5. (a) Explain different states of tasks [8+8]

(b) Explain about the following scheduling algorithms

i. Primitive multitasking

ii. Shortest-job first.

6. (a) Explain how pipes are useful for inter-task communication.

(b) Explain the following with examples.

i. How to create a pipe

ii. How to open a pipe. [8+8]

7. Inter CPU motherboard is an embedded board. Assuming the RTOS is ported onto this board explain the following features of this board(a) Interrupt support (b) DMA support(c) Machine or Bus cycles (d) Memory. [4+4+4+4]

8. (a) What is verification with respect to design technology and explain the mainVerification approach.

(b) Explain about Hardware and Software co-simulation. [8+8]

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1. Write Truth Table for the following types of gates and give one example for eachtype of gate where it can be used. [4+4+4+4]

(a) 3 - Input NAND gate

(b) 2 - Input XOR gate

(c) 2 - Input NOR gate

(d) NOT gate.

2. (a) Write notes on microcontrollers and the peripherals usually associated with inthe processor.

(b) Distinguish between DSP and any general purpose processor. [8+8]

3. (a) How to capture State Machines in Sequential Programming Language?

(b) Explain about Finite - State Machines. [8+8]

4. Explain about IEEE 1394 Protocol Architecture and give brief description abouteach protocol. Differentiate between IEEE 1394A and IEEE 1394B. [16]

5. Taking suitable examples explain how to :

(a) Acquire a Mutex

(b) Query a Mutex

(c) Wait on a Mutex. [5+5+6]

6. (a) Explain how pipes are useful for inter-task communication.

(b) Explain the following with examples.

i. How to create a pipe

ii. How to open a pipe. [8+8]

7. (a) Explain about the issues involved in synchronization of data between the hand-held computers and desktop computers.

(b) Explore the standardization activities for data synchronization. [8+8]

8. What is a Gajski Y chart? How this chart is important in the design of an embeddedSystem. [16]

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1. (a) What is flip flop? Explain Master - Slave flip flop.

(b) Explain about RT - Level sequential components and sequential logic design.[4+12]

2. Write short note on the following topics.

(a) Reset Circuitry

(b) ASIPs

(c) Programmable Array Logic/ PLD

(d) Bus Handshaking. [4+4+4+4]

3. (a) Explain using State Machines in Embedded Systems.

(b) Explain about Finite - State Machine with Datapath model. [8+8]

4. (a) Which are the devices that can be connected through IEEE 1394 Bus? Explainits limitations.

(b) Explain about Ethernet LAN Protocol Architecture and give brief descriptionabout each protocol. [6+10]

5. (a) Briefly explain different Task management calls

(b) Explain the following with respect to real time operating systems.

i. Interrupt latency

ii. Interrupt Response Time

iii. Interrupt Recovery Time. [8+8]

6. With suitable examples explain how to

(i) Send a signal to another Task (ii) Block a signal from being delivered.(iii) Unblock a blocked signal. [5+5+6]

7. (a) Explain the difference among various types of off - the shelf operating systems.

(b) Explain any three POSIX system calls with proto-type and give example foreach. [10+6]

8. With examples explain the Two-level and multi-level logic minimization With re-spect to synthesis process. [16]

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