Discussion :: Physics
- In a railway track, two rails are joined end to end with a gap in between them because
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A.
Steel can be saved |
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B.
Accidents due to contraction in winter can be avoided |
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C.
Air-gaps are necessary for bearing the weight of running train |
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D.
Accidents due to expansion in summer can be avoided |
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Answer : Option D
Explanation :
In a railway track, two rails are joined end to end with a gap in between them because accidents due to expansion in summer can be avoided.
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