Question

Explain why rails have gaps at specific distance?​

Answer 1

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. So that there is enough margin for the tracks to expand and contract due to the temperature changes.

Answer 2

Answer:

below Explanation

Explanation:

As rails are made up of steel, these also expand in summers and contract in winters. These expansions and contractions can cause sagging and bending of rails which could derail the trains running on them. Thus, the rails have been provided with gaps at a specific distance so as to prevent this bending of rails. These spaces get closer in summers and wider in winters.