why do we leave small gaps between two succesive railway tracks
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the gap is left for iron metal to expand and contract during winter and summer if gap is not left between two rails the rails will bent more and. cause derailing of the train
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Small gaps which function as expansion joints are deliberately left between the rail ends to allow for expansion of the rails in hot weather. ... Because of these small gaps, when trains pass over jointed tracks they make a "clickety-clack" sound.
hope helps.....
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