# The density of sleepers mainly depends upon all except one of the following

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The density of sleepers mainly depends upon all except one of the following
1. Axle load the rail track is designed to carry
2. The nature of sleeper and materials used
3. Lateral thrust of locomotives
4. Speed of the train
5. Climatic variations

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Correct Answer - Option 5 : Climatic variations

Sleeper Density:

Sleeper density means number of sleepers per rail length

It is represented by M + x

M = Length of rail in meters

x = Factor depending upon several factors such as axle loads, a section of rails, etc, generally lies between 3 to 6.

For Example, If the sleeper density is N + 5, on broad gauge track and length of rail is 13 m, then 13 + 5 = 18 sleepers will be used per rail length on that route.

The density of sleepers mainly depends upon:

1. Axle load the rail track is designed to carry

2. The nature of sleeper and materials used

3. Lateral thrust of locomotives

4. Speed of the train