Question

In which year railway tracks expend easily

Answer 1

Answer:

Before sliding sections were implemented, and sometimes on jointed rail during extremely hot weather, rails would buckle. Railroads tried to avoid this by laying welded rail during hot weather, so that it would be at its maximum expanded length. Then the rail would contract and stretch during cold weather.

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Answer 2

Answer:

the question is wrong

Explanation:

i think the question is

in which month the railway teacks expend easily

and here the answer

in the time of hot wheater that is the summer the tracks expand easily beacuse it is solid so the molecules are closely packed and materials exanp on heating and contract on cooling