Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Physics in Everyday LifeHeat & Thermodynamics
In a railway track, two rails are joined end to end with a gap left between them because?
- A.Steel rails are cheaper when laid with a gap
- B.Gaps help rainwater drain off the track quickly
- C.It makes the track look more uniform and aligned
- D.Accidents due to expansion in summer can be avoidedCorrect answer
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Practice these MCQs in the appQuick fact: Gaps are left between railway rails so that accidents due to expansion in summer can be avoided.