Question

why are iron rails of railway track fixed over wide wooden or concrete sleeper​

Answer 1

Answer:

Usually Iron rails are fixed upon concrete sleepers instead of wood.

Explanation:

The rails are laid on them because it supports the rails to share and spread the weight of the train moving on it and prevents the train from derailing.

Answer 2

Answer:

Wooden or concrete sleepers are fixed over a wide region to spread out the load due to the moving train

Explanation:

Wooden or concrete sleepers are fixed over a wide region to spread out the load due to the moving train. The wider the area, the less the pressure exerted. In the absence of the sleepers, the rails would sink into the ground due to the heavy load of the moving train