Question

A gap is left between the rail

Answer 1

Instead, each rail is connected to the other in such a way that a small gap is left in between them. These small gaps provide space for easy expansion of the rails which happens during summer as well as due to continuous friction between the train wheels and the rails.

Answer 2

this is because during summer time the rail track expands and if there is no gap
track shape will be deteriorated and misfortune can be happen. So in order to overcome this difficulties rail track are provided with gap.

In winter the rail track contract


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