Question

Why is gap left between railway track in table

Answer 1

Answer:

As the name “expansion gap “ they are kept for exact same purpose. This is basic physics that metals expand when temperature increases. Therefore the gap is left so that there is enough space left for them to expand whenever temperature rises. Why are small gaps left between the rails of railway tracks?

Explanation:

Answer 2

The gaps you are referring to are the small gaps that are left between section of the rail that form each side of the parallel railways for over which railway engines, coaches, trains and trams run.

These gaps which are of the order of a few millimeters, are provided to allow room for the rails to expand the rise in temperature due to the atmospheric temperature as well as the friction caused by running of train. All materials expand when heated and contract when cooled. the extent of expansion and contraction is quite low to be noticed by people or make much difference in most situations. However, since each section of the rail is very long, the expansion due to heating is significant, and unless space is provided for expansion of rails, the rails will bend to accommodate the increased length. This will make the railway unfit for running of trains.

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Refer the following attachment :