The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

The rails get out of their original positions due to insufficient expa

1.	The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known
A.	550 m
B.	hogging
C.	buckling
D.	creeping
Answer» C. buckling

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The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

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