Top Civil Engineering interview questions
- The adjustment of rail is usually needed when creep exceeds
150 mm
2. Sleepers which satisfy all of the requirements and are only suitable for track circuiting are
Wooden sleepers
3.The number of sleepers used for rail varies from
(n + 3) to ( n +6 )
4.The standard size of wooden sleepers on meter gauge railway track is
1.83 m * 20 cm *11 cm
5. The standard size of wooden sleepers on broad gauge railway track is
2.74cm*25cm*13cm
6. The best wood for sleeper is
Teak
7.The composite sleeper index is the index of
Strength and weakness
8.The composite sleeper index determines the
Suitability of the wooden sleeper
9. The minimum composite sleeper index for wooden sleeper used over bridge girders, is
1455
10 .The mass of cast iron sleeper is
78.4 kg
11. A CST-9 sleeper consist of
Two inverted pots on either side of rail seat ,a single two way key on the gauge side.
12. RCC sleeper are used in railway due to their
Suitability for track circuiting,capacity to maintain the gauge properly, heavy weight which improves the track modulus.
13. The number of sleepers used per rail length on the track is known as
Sleeper density
14. In India , the sleeper density provided is
18 sleeper per rail length
15. The ballast material generally used on Indian railway consist of Broken stone,gravel, moorum