Question

Explain why rails have gaps at specific distance?

Answer 1

So that there is enough margin for the tracks to expand and contract due to the temperature changes. If that gap is not left then the tracks might have enormous stress in them while expanding due to heat.Thermal expansion of long continuous sections of rail tracks is the driving force for rail buckling

Answer 2

Here is your answer

ANS:-1)During summer, due to change in temperature, the length of the rails

         increases.

         2)If the rails are made without the gaps in between, then after

         expansion, the rails may get get distorted  in summer, leading to rail

         accidents

         3)Hence, to accommodate this change in  length of the rails, they have

         gaps at the specific distances.

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