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VTU Civil Engineering (Semester 6)
Transportation Engg 2
June 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Explain the role of rail transportation in the development of country.
8 M
1 (b) Discuss the factors which govern the choice of a gauge.
6 M
1 (c) Define creep. What are the causes and effects of creep?
6 M

2 (a) What are the requirements of a good ballast? Mention the different types of ballast used in permanent way.
6 M
2 (b) Calculate the quantity of materials required for the construction of B.G. track of length 19,500 m with the rail section of 52 kg/m and standard length of 13m. Take sleeper density as n-4.
6 M
2 (c) Determine the maximum train load that can be handled by a locomotive having four pairs of driving wheel of an axial load of 28 tones each, On a straight track the train runs at a speed of 90 kmph. Also determine the reduction of speed the train has on upward gradient of 1 in 150. If the train moves on a upward gradient with 3° curve, what would be the reduction of speed? Take μ-1/6.
8 M

3 (a) What are the objects of providing transition curve? Explain briefly the essential requirements of an ideal transition curves.
6 M
3 (b) Define gradient. Mention the different types of gradient in a railway track. What is grade compensation?
6 M
3 (c) A 5° curve diverges from a 30° main curve in the reverse direction in the layout of a B.G. yard. If the speed on the branch line is restricted to 35 kmph, determine the restricted speed on the main line.
8 M

4 (a) Draw a neat sketch of a left hand turnout and show its various component parts.
6 M
4 (b) What is marshalling yard? Explain the functions of marshalling yard with sketch.
6 M
4 (c) Explain briefly the working of a semaphore signal, with the help of a neat sketch.
8 M

5 (a) List the various elements of an airport and explain them with a neat sketch.
10 M
5 (b) For the following data, plot type-I wind rose dagram, explain the procedure and find the orientation of runway and percentage of wind coverage.
 Wind Direction Duration of Wind in % of time Wind Direction Duration of Wind in % of time N 7.3 S 8.6 NNE 12.4 SSW 14.5 NE 9.0 SW 10.3 ENE 3.3 WSW 6.8 E 1.2 W 4.0 ESE 1.6 WNW 1.1 SE 0.3 NW 0.7 SSE 0.8 NNW 4.3
10 M

6 (a) Explain with a sketches the instrument landing system procedure.
6 M
6 (b) Mention the factors governing the layout and location of taxiways.
6 M
6 (c) Determine the corrected length of runway for an airport site using the following data:
i) Basic runway length - 2520 metres
ii) Airport elevation - 500 metres
iii) Airport reference temperature = 217deg; C
iv) Runway effective gradient = 0.2%.
8 M

7 (a) Explain a method of transfer of centre line in to the tunnel and providing grade.
10 M
7 (b) What is a tunnel? Mention its advantages.
4 M
7 (c) Explain with sketch the Needle beam method of tunneling.
6 M

Write short notes on:
8 (a) (i) Natural Harbour
3 M
8 (a) (ii) Upright wall water breaker
3 M
8 (a) (iii) Quays & Jetties
3 M
8 (a) (iv) Tetra pods
3 M
8 (b) Explain with suitable sketch, the working of a dry dock.
8 M

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