Sunday, November 18, 2012

Railways, Airport and Harbor Engineering / CE 2303 Anna University Nov/Dec 2012 Examination Important Questions

Anna University, Chennai Nov/Dec 2012 Examinations Important Questions
Railways, Airport and Harbor Engineering / CE 2303
Unit I-V
1.     Briefly explain the modern methods of surveys for track alignment
2.     Explain super elevation giving the relationship of super elevation with gauge,
speed and radius of the curve.
3.     Compare the different types of sleeper. Give all details
4.     Briefly explain about super- elevation, gradients.
5.     Illustrate with a neat sketch, the turnout, points and crossings and explain their
working principles
6.     With neat sketches, differentiate between reception, signal and departuresignals.
7.      Explain with neat sketches, how surface and sub-surface water can be removed from railway track
8.     What is meant by a crossing? Discuss various types of crossings used in Indian
9.     Explain in detail the miscellaneous measures of track modernization
10.Explain the steps in the determination of proper orientation for runway
11. Give the various geometric standards for different classes of runways and taxiways.
12.List the factors to be considered for the selection of site for a commercial airport
13. What are the basic patterns of runway configurations? Discuss each pattern
14.What is a wind rose diagram? Explain different types of wind rose diagrams
15. Draw a layout of any one international airport in India and explain the concept
16.Explain the planning concept of airport buildings
17. Describe the different systems of aircraft parking
18.What are flight rules? Discuss the advantages and disadvantages of each system
19.Write descriptive notes on mooring and mooring accessories
20. Classify harbours on broad basis and on the basis of utility and explain them
21.Explain the different natural phenomena to be studied before the design of harbours.
22.  List the common types of break waters in use and bring out the advantages of each of them


EE2303/ Transmission and Distribution Anna University Nov/Dec 2012 Exam Important Questions

Anna University, Chennai Nov/Dec 2012 Examinations Important Questions
EE2303/ Transmission and Distribution
Common To V Sem EEE
Unit I-V
1.     Draw and explain the structure of Electrical Power Systems
2.     Discuss in detail the various equipment’s used in HVDC converter station
3.     What are the various types of HVDC links?
4.     An overhead line has a span of 336m. The line is supported at water crossing from two towers whose heights are 33.6m and 29m above water level. The weight of conductor is 8.33N/m and tension in is not to exceed 3.34 × 10-4. Find i) Clearance between the lowest point on the conductor and water ii) horizontal distance of this point from the lower support
5.     Explain why EHV transmission is preferred? What are the problems involved in EHV AC transmission?
6.     Explain the various factors affecting the corona loss
7.      A single phase transmission line has two parallel conductors 3m apart, the radius of each conductor being 1cm. Calculate the loop inductance per km length of the line if the material of the conductor is i) copper and 2) Steel with relative permeability of 100
8.     Derive the expression for inductance of a three phase line with unsymmetrical Spacing
9.     Explain (i) Skin and Proximity effect (ii) GMR and GMD
10.A three phase 5 km long transmission line, having resistance of 0.5 Ω / km and
inductance of 1.76mH/km is delivering power at 0.8 pf lagging. The receiving end voltage is 32kV. If the supply end voltage is 33 kV, 50 Hz, find line current, regulation and efficiency of the transmission line
11. Write short notes on Shunt compensation
12.What is a nominal π circuit? Find the ABCD constants for nominal π
13. Discuss briefly about (i) Pin type insulator (ii) Suspension type insulator
14.Describe with the neat sketch, the construction of a 3 core belted type cable.
15. What are different methods to improve string efficiency of an insulator?    
16.A single core cable of conductor diameter 2cm and lead sheath of diameter 5.3 cm is to be used on a 66kv, 3 phase system. Two layer sheath of diameter 3.1cm and 4.2 cm are introduced between the core and lead sheath. If the maximum stress in the layer is same, find the voltages in the inter sheath
17. Explain the various types of grounding systems
18.Explain the need for power system earthing
19.Explain any two substation bus schemes in detail
20.                  Explain briefly about the various types of bus bar arrangements in a substation.

Important Questions in Transmission Lines and Wave Guides EC2305 Anna University Nov/Dec 2012 Examinations - version 3

Anna University, Chennai Nov/Dec 2012 Examinations Important Questions
Transmission Lines and Wave Guides EC2305
Common To V Sem ECE
Unit I-V
1.     Design a constant K T-section band elimination filter with cutoff frequencies of 2 khz and 5 khz. The design impedance is 900 ohms
2.     Derive and draw the characteristics of m-derived T section for high pass filter.
3.     Design a T section and π section constant k high pass filter having cut off frequency of 12 khz and nominal impedance R = 500ohms. Also find i) Zo ii)β at 24 Khz iii) α at 4Khz
4.     Design prototype T section band pass filter having cut-off frequency of 1 khz and 4khz and impedance of 600 ohms. Find resonant frequency.
5.     Draw and explain the operation of crystal filter
6.     What is Waveform distortion? Explain its types with equations. Derive the condition for a  distortion less line?
7.      At 8 Mhz the characteristic Impedance is 40-j2 ohms and propagation constant 0.01+j0.18 per meter. Find the primary constants
8.     Derive the two Standard forms for Voltage and Current of a line terminated by an impedance of the transmission line.
9.     A transmission line has the following parameters per km. R=15 ohms, C=15 uf, L=1mH and G=1 umho. Find the additional inductance  to give distortionless transmission. Calculate attenuation and phase constant for the loaded line
10.What is lumped loading? Derive an expression for the lumped loaded cable
11. Explain single stub matching on a transmission line and derive an expression to find the length & location of the stub used for matching on a line?
12.Deduce the expression for constant S circle for the dissipation line
13. Derive the expression for the input impedance of the dissipationless line and expression for a quarter wave line with its applications
14.Derive the expression that permit easy measurements of power flow on a line of negligible losses.
15. What is SWR? Derive an expression for it related with reflection Coefficient
16.Derive the expression for the field strength  for the TM and TEwaves between parallel plates  propagating in z direction
17. Derive the characteristics of TE, TM and TEM waves for parallel plates
18.A Waveguide formed by two parallel copper sheets σ=5.8*107 s/m separated by a 5 cm thick lossy dielectric εr=2.25, μr=1, σ=10-10s/m. For an operating frequency of 10 Ghz, find β, αd, αv, Vg, Vp & λg for TE1, TM2 and TEM modes
19.Using Bessel function derive the TE wave components in circular waveguide
20.         Explain the transmission of TM waves in Rectangular wavguide with necessary expressions and diagrams for the field components
21.Determine the solution of electric and magnetic fields of TM waves guided along rectangular waveguide
22.         Explain the various excitation methods of Rectangular waveguides.