Question

Why is there a small gap left between the joints of rail tracks?

Answer 1

hey mte your answer is

The gap in the joint between to rails is to compensate for the expansion of the material of rail during summer.

The metals expand or contract with the changes in temperature. The expansion or contraction depends on the coefficient of thermal expansion of the material. Based on this property of the metal, the gap in the joint of two rails is provided.

hope it helps you