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Physics GK · Q249

Heat and Thermodynamics

Competitive Exams · Physics GK · question 249

Q249

A small gap is left at the joints of rails in a railway track to

A.
avoid the tracks being distorted due to seasonal temperature variation
Answer
B.
avoid the heating of tracks to high temperature
C.
control the speed of train
D.
keep the rails equidistant

Answer: Option A

Solution

Answer: Option A
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