EE 2202 Electromagnetic Theory Question bank download

 Third SemesterElectrical and Electronics Engineering 
EE 2202 - Electromagnetic THEORY(Regulation 2008)
 Time: Three hours 
Maximum: 100 Marks
 Answer ALL questions
 PART A - (10 × 2 = 20 Marks) 
1. State divergence theorem
.2. Show that the vector zyxayxazxazy H 2 2 2 3 2 4 3 4 3 + + = - is solenoidal
.3. Define electric dipole and electric dipole moment
.4. Write Poisson's equation and Laplace's equation for a simple medium. 
5. Biot-Savrat State's law.
 6. What is the expression for inductance of a toroid?
 7. State Faraday's law of electromagnetic induction. 
8. State equation of Maxwell's I and II.
 9. State of the Poynting's theorem. 
10. Mention any two properties of a uniform plane wave. 
PART B - (5 × 16 = 80 Marks) 
11. (A) transform the vector ----- = zyxaaa A 4 2 4 at () 4, 3, 2 = + = + = zyxp tospherical coordinate.
 Or 
(B) Write short notes on the following:(I) the gradient (4)(Ii) Divergence (4)(Iii) the curl and (4)(Iv) the Stokes' theorem. (4)
 12. (A) Find the potential at any point along the axis of a uniformly charged discof 2 c / m σ. The disc has radius of 'a' m. 
Or 
(B) Deduce an expression for the capacitance of a parallel plate capacitorhaving two dielectric media. 
13. (A) (i) Obtain an expression for the magnetic field intensity due to finiteCarrying current conductor length.(Ii) Find the magnetic field intensity at any point on the axis of aCarrying coil with a circular current loop of radius 'a' m.
 Or
 (B) State and explain Ampere's circuital law and show that the field strengthat the end of a long solenoid is one half of that at the center. 
14. (A) Obtain the expression for energy stored in the magnetic field and alsoderived the expression for magnetic energy density. 
Or 
(B) Derive and explain in point and integral form of Maxwell's equation usingAmpere's circuital law and Faraday's law. 
15. (A) Derive the relationship between electric field and magnetic field. DerivePhasors of the wave equation for magnetic field in the form. 
Or
 (B) Define the Brewster angle, and derived its expression.

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EE2252 Power plant engineering quesion bank free download

PART A — (10 × 2 = 20 Marks)

1. Mention the various modern ash handling systems.
2. What are the factors affecting cooling of water in cooling tower?
3. Enumerate advantages and disadvantages of hydropower plants.
4. What is a surge tank?
5. What are the requirements of fission process?
6. What are the essential components of a nuclear reactor?
7. State the merits and demerits of closed cycle gas turbine over open cycle gas turbine power plant.
8. State the applications of diesel power plant.
9. What is a fuel cell?
10. What are the advantages and limitations of tidal power plant?

PART B — (5 × 16 = 80 Marks)

11. (a) Give the layout of a modern steam power plant and explain it briefly.[Marks 16]
Or
(b) How are cooling towers classified? Explain any one of them with a neat sketch.[Marks 16]

12. (a) Explain with a neat sketch a pumped storage power plant.[Marks 16]
Or
(b) What is the function of a hydraulic turbine? How are the turbines classified? Explain any one with a suitable sketch.[Marks 16]

13. (a) With the help of a sketch show all the important part of nuclear reactor. Describe briefly the functions of each part.[Marks 16]
Or
(b) Explain the following terms: (i) Fission of nuclear fuel (ii) Distribution of fission energy (iii) The chain reaction. [Marks 16]

14. (a) Discuss briefly the methods employed for improvement of thermal efficiency of open gas turbine power plant.[Marks 16]
Or
(b) List the essential components of a diesel power plant and explain them briefly.[Marks 16]

15. (a) Explain with a neat diagram of wind electric generating power plant.[Marks 16]
Or
(b) Describe open cycle MHD system with suitable sketch.[Marks 16]

ME2253 Engineering Materials and Metallurgy Question bank

  ME2253  Engineering Materials and Metallurgy Question bank 


Two mark questions

1. Write the peritectic reaction in Fe-F3C diagram.
2. Classify steel.
3. What is the purpose of spheroidizing?
4. How to avoid white layer in Nitriding treatment?
5. List the effect of chromium in alloy steel.
6. Name a few characteristics of bearing alloy.
7. Write the applications of PVC
8. Define the term FRC.
9. What is micro hardness?
10. What do you understand by work hardening?
11. What are the effects of crystal structure and atomic radii on formation of solid solution between two metallic elements?
12. Define Peritectic and Eutectoid reactions.
13. A low carbon steel is stronger in the normalized condition than in the annealed condition. Why?
14. Case carburizing heat treatment is not generally carried out for medium carbon steel. Why?
15. Compare the martensite that is formed in maraging steel with the martensite that is formed in carbon steel.
16. What is the main strengthening mechanism in high strength aluminium alloys?
17. Name four ethenic polymers (polymers that have the basic monomer structure of ethylene)
18. What are the important uses of alumina and silicon nitride?
19. Define endurance limit in fatigue test.
20. What properties are determined from tension testing of metallic products?

16 mark questions

1. Compare different methods of hardness testing from all possible aspects such as accuracy, range, quickness, easiness and necessity.
2. Describe, iron-carbon phase diagram. State how to use the diagram to understand solidification of 0.4% C steel and 4.3% C steel.
3. Differentiate between grey-cast iron and spheroidal graphite cast iron.
4. What do you understand by heat treatment? Mention the various stages of heat treatment procedure.
5. Outline the principle of high frequency induction hardening. How induction hardening is carried out. Mention its advantages, disadvantages and applications.
6. Discuss the effects of various alloying elements on the properties of metals. What is red hardness and how it is useful for cutting tools?
7. What is bearing metal? Give its classification, composition, properties and uses.
8. Describe the major properties of thermosetting plastics. What are the applications of phenolic and melamine?
9. Explain the different types of important technological properties of metal.
10. Describe the molecular structures, properties and applications of the following polymers:
11. i. Polyvinyl chloride(PVC)

         ii. Polystrene(PS)
         iii. Polyethylene terephthalate(PET)
         iv. Polycarbonate(PC)

v. Draw an iron-carbon diagram neatly.(vi). Using the iron-carbon diagram, predict the microstructure at room temperature of a carbon steel that contains 0.4% carbon when cooled in furnace.


12. i. Elements A and B melt at 700° C and 1000°C respectively. Draw a typical isomorphous phase diagram between the elements A and B.
ii. Elements A and B melt at 700° C and 1000°C 700 respectively. They form an eutectic at 35% A at temperature 500°C. Draw a typical phase diagram between A and B.




13. Draw a schematic CCT diagram for a carbon steel containing 0.8% carbon. Using this diagram, explain how different cooling curves lead to (i) annealing heat treatment, (ii) normalizing heat treatment, and (iii) hardening heat treatment.

14. i. Explain how Jominy end quench test is used for determining the hardenability of steels.
15 Explain the steps in case carburising of steels.
16Write a short note on compositions and properties of the following steel:
a.Austenitic stainless steel
b.High speed steel
c.Martensitic stainless steel.
d.Maraging steel.

17.How will you classify brass based on the composition of zinc? Explain the properties and applications of the main types of brass.

18.Explain the steps involved in precipitation hardening treatment.
19.Explain the mechanisms of plastic deformation of metals by slip and twinning.
20.Explain the characteristics of ductile fracture and brittle fracture.
21.Explain the testing procedure for Vickeres Hardness testing.
22.Explain the testing procedure for Charpy impact testing.

EC 2045 Satellite communication Question Bank Free download

EC2045-SATELLITE COMMUNICATION

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UNIT – I SATELLITE ORBITS

PART - A

1. Define Satellite Communication.

2. What is Satellite?

3. State Kepler’s first law.

4. State Kepler’s second law.

5. State Kepler’s third law.

6. Define apogee and perigee.

7. What is line of apsides?

8. Define ascending node and descending node.

9. Define Inclination.

10. Define mean anomaly and true anomaly.

11. Mention the apogee and perigee height.

12. What is meant by azimuth angle and look angles?

13. Give the 3 different types of applications with respect to satellite systems.

14. Mention the 3 regions to allocate the frequency for satellite services.

15. Give the types of satellite services.

16. What is mean by DOMSAT, INTELSAT, SARSAT?

17. Define polar-orbiting satellites.

18. Give the advantage of geostationary orbit.

19. Write short notes on station keeping.

20. What are the geostationary satellites?

21. What is sun transit outage?

PART-B

1. (a) Explain about frequency allocations for satellite services. (10)

(b) Explain about U.S Domsats. (6)

2. Discuss briefly the development of INTELSAT starting from the 1960s through the

present. (16)

3. What is meant by polar orbiting? Explain in detail. (16)

4. State Kepler’s three laws of planetary motion. Illustrate in each case their relevance to artificial satellites orbiting the earth. (16)

5. Explain in detail the geocentric-equatorial coordinate system which is based on the

earth’s equatorial plane. (16)

6. Explain in detail about topocentric-horizon coordinate system which is based on the

observer’s horizon plane. (16)

7. Explain in detail about various measure of time. (16)

UNIT – II SPACE SEGMENT AND LINK DESIGN

PART-A

1. Give the two segments of basic satellite communication.

2. Write short notes on attitude control system.

3. What is declination?

4. What is meant by payload?

5. What is meant by transponder?

6. Write short notes on station keeping.

7. What is meant by Pitch angle?

8. What is an propellant?

9. What is an Yaw and zero ‘g’?

10. Describe the spin stabilized satellites.

11. What is meant by frequency reuse?

12. What is meant by spot beam antenna?

13. What is meant by momentum wheel stabilization?

14. What is polarization interleaving?

15. Define S/N ratio.

16. What is noise weighting?

17. What is noise power spectral density?

18. What is an inter modulation noise?

19. What is an antenna loss?

20. Define sky noise.

21. Define noise factor.

22. What is TWTA?

23. What is an OMT?

PART-B

1. Explain in detail about antenna look angles and the polar mount antenna. (16)

2. Explain about Earth eclipse of satellite and sun transit outage. (16)

3. Explain about launching orbits. (16)

4. Explain what is meant by satellite attitude and briefly describe two forms of attitude

Control . (16)

5. Draw the block diagram of TT&C and explain its blocks. (16)

6. Describe briefly the most common type of high-power amplifying device used aboard a communication satellite. (16)

7. Explain about wideband receiver and advanced Tiros-N spacecraft. (16)

8. Describe briefly the antenna subsystem and Anik-E. (16)

9. Explain in detail about thermal control and Morelos. (16)

UNIT – III SATELLITE ACCESS

PART-A

1. What is a single mode of operation?

2. What are the methods of multiple access techniques?

3. What is an CDMA?

4. What is SCPC?

5. What is a thin route service?

6. What is an important feature of Intelsat SCPC system?

7. What is an TDMA? What are the advantages?

8. What is preamble?

9. Define guard time.

10. What is meant by decoding quenching?

11. What is meant by direct closed loop feedback?

12. What is meant by feedback closed loop control?

13. Define frame efficiency.

14. What is meant by digital speech interpolation?

15. What is meant by telephone load activity factor?

16. What are the types of digital speech interpolation?

17. What is meant by freeze out?

18. What is DSI?

19. What are the advantages of SPEC method over DSI method?

20. Define satellite switched TDMA?

21. What is SS / TDMA?

22. What is processing gain?

23. What is burst code word?

24. What is meant by burst position acquisition?

25. What is an single access?

26. What is an multiple access technique?

27. What is meant by frequency reuse?

28. What is meant by space division multiple access?

29. What is an error detecting code?

30. What are the limitations of FDMA-satellite access?

31. Write about pre-assigned TDMA satellite access.

32. Write about demand assigned TDMA satellite access.

PART-B

1. Explain with an example the type of traffic route where single access is used. (16)

2. Explain in detail about FDMA and show how this differs from FDM. (16)

3. Explain in detail the operation of a preassigned SCPC network. (16)

4. Explain in detail the operation of the spade system of demand assignment. What is the function of the common signaling channel? (16)

5. Describe the general operating principles of a TDMA network. Show how the

transmission bit rate is related to the input bit rate. (16)

6. Explain the need for reference burst and preamble and postamble in a TDMA

System . (16)

7. Explain in detail about network synchronization with neat sketch. (16)

8. Define and explain the terms carrier recovery, bit-time recovery, traffic data, frame efficiency and channel capacity. (16)

9. Explain in detail about speech interpolation and prediction. (16)

10. Explain in detail about satellite switched TDMA. (16)

11. Describe briefly about on board signal processing for FDMA/TDM operation. (16)

12. Describe in your own words how signal acquisition and tracking are achieved in a

DS/SS system . And also derive the expression for maximal sequence. (16)

13. Explain the principle behind spectrum spreading and dispreading and how this is

used to minimize interference in a CDMA system. Also determine the throughput

efficiency of the system. (16)

UNIT – IV EARTH SEGMENT

PART-A

1. Define earth segment.

2. Give the difference between KU-band and the C-band receive only systems.

3. What is mean by ODU and IDU.

4. Explain about MATV system.

5. Write about CATV system.

6. Define S/N ratio.

7. What is noise weighting?

8. What is an EIRP?

9. What is noise power spectral density?

10. What is an inter modulation noise?

11. What is an antenna loss?

12. Define noise factor.

13. A satellite downlink at 12 GHz operates with a transmit power of 6 W and an antenna gain of 48.2 dB. Calculate the EIRP in dBW.

14. The range between a ground station and a satellite is 42000 km. Calculate the free

space loss a frequency of 6 GHz.

15. An antenna has a noise temperature of 35 K and it is matched into a receiver which has a noise temperature of 100 K. Calculate the noise power density and the noise power for a BW of 36 MHz.

16. Define Saturation flux density.

17. Write the equations of losses for clear sky conditions.

18. What are the types of antenna losses?

19. Define sky noise.

20. What is an Apsorptive n/w?

PART-B

1. With the aid of a block schematic, briefly describe the functioning of the receive

only home TV systems. (16)

2. Describe and compare the MATV and CATV systems. (16)

3. With the relevant expression explain in detail about transmission losses. (16)

4. Explain the classifications of system noise temperature. (16)

5. Explain uplink satellite circuit. (16)

6. Explain downlink satellite circuit. (16)

7. Describe briefly about the rains effects. (16)

8. Explain about inter-satellite link. (16)

UNIT – V SATELLITE APPLICATIONS

PART-A

1. Give the 3 different types of applications with respect to satellite systems.

2. Mention the 3 regions to allocate the frequency for satellite services.

3. Give the types of satellite services.

4. What is mean by DOMSAT, INTELSAT, SARSAT?

5. What are the applications of Radarsat?

6. What is ECEF?

7. What is dilution of precision?

8. What is PDOP?

8. What is DBS?

9. Give the frequency range of US DBS systems with high power satellites.

10. Give the frequency range of US DBS systems with medium power satellites.

11. What is DTH?

12. Write about bit rates for digital television.

13. Give the satellite mobile services.

14. What is GCC and GEC?

15. What is INMARSAT?

16. List out the regions covered by INMARSAT.

17. What is INSAT?

18. List out the INSAT series.

19. What is GSM?

20. What is GPRS?

21. Define DAB.

22. What is DVB?

23. What is GRAMSAT?

PART-B

1. Describe briefly the video compression process used in MPEG-2. (16)

2. Explain about indoor and outdoor unit of home receiver. (16)

3. Explain about frequencies and polarization, transponder capacity and bit rates for

digital television. (16)

4. Explain in detail about satellite mobile services. (16)

5. Describe the operation of typical VSAT system. State briefly where VSAT systems and find widest applications. (16)

6. Describe the main features of Radarsat. Explain what is meant by dawn to dusk orbit and why the Radarsat follows such on orbit. (16)

7. Explain why a minimum of four satellites are visible at an earth location utilizing the

GPS system for position determination. What does the term dilution of precision refer to?

8. Describe the main features and services offered by the orbcomm satellite system.

How do these services offered by geostationary satellites and terrestrial cellular systems?

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