A

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Q. In a railway track, two rails are joined end to end with a gap in between them because

  • (A) Steel can be saved
  • (B) Accidents due to contraction in winter can be avoided
  • (C) Air-gaps are necessary for bearing the weight of running train
  • (D) Accidents due to expansion in summer can be avoided
  • Correct Answer - Option(D)
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  • Filed under category Physics
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