1815Every Day ScienceMedium
In a railway track, two rails are joined end to end with a gap tin between them because?
AAccidents due to contraction in winter can be avoided
BAll of these
CSteel can be saved
DAccidents due to expansion in summer can be avoided
EAir gaps are necessary for bearing the weight of running train
Correct answer
D. Accidents due to expansion in summer can be avoided
Explanation
Accidents due to expansion in summer can be avoided is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.