Question

Gaps are left between the rails of railway tracks * 1 . For the contraction of the rails 2 . Construction of rails 3. For the expansion of the rails

Answer 1

Answer:

Explanation:The gap is left between the rails to provide a space for the iron metal to expand and contract during the summer and winter season due to the change in the temperatures. If the gap is not left in between then the rails will bend more and cause derailing of the trains.

Answer 2

Answer:

if the rail are filled end to end leaving no gap, then on expansion, the rails would bend. To avoid this, rails are joined by a fish plate, leaving some gap between the rails.