The transverse members of the track placed below the rails to support and fix them in position, are termed as

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Question

This question was previously asked in

JKSSB JE Civil 20 March 2022 Official Paper

Answer 1

Explanation:

Sleepers:

The transverse members of the track placed below the rails to support and fix them in position are termed Sleepers.
Sleepers support the rail and transfer the axle load to subgrade through the ballast. They are manufactured by using the pre-tensioning method.

Ballast:

It is the granular material that is placed and packed below and surrounding the sleeper such that it transmits the load from sleepers to subgrade and provides good drainage.
The depth of ballast for different types of tracks is:
- For BG- 20-25 cm
- For MG- 15-20 cm
- For NG- 15 cm
The quantity of stone ballast required for one meter length of track for a different type of tracks is as follow:
- For BG – 1.036 m3.
- For MG – 0.71 m3.
- For NG – 0.53 m3.
The size of ballast depends on the type of sleeper and location of the track, and it is given as:
- For Wooden sleeper- 5 cm
- For Metal sleeper- 4 cm
- For turnouts and cross-over- 2.5 cm