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It is a practice to leave some gap between railway tracks, as they tend to expand on a _____________.
- a)Windy Day
- b)Sunny Day
- c)Cool Winter day
- d)Rainy Day
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
It is a practice to leave some gap between railway tracks, as they te...
- All metal objects tend to expand when they get heated due to any factor. In this case, railway tracks expand on a hot sunny day.
- If two railway tracks were to be laid together without any gap between them, the push caused due to expansion against each other might lead to the derailment of tracks and cause accidents.
Most Upvoted Answer
It is a practice to leave some gap between railway tracks, as they te...
Understanding the Expansion of Railway Tracks
Railway tracks are constructed using steel, which is a material that expands when heated and contracts when cooled. This property is crucial to understand when considering the gaps left between the tracks.
Why Gaps are Necessary
- Thermal Expansion: On a sunny day, when temperatures rise, the steel rails can expand significantly. If there are no gaps, this expansion could cause the tracks to buckle or warp, leading to dangerous situations.
- Safety Precautions: Leaving intentional gaps allows the rails to expand freely without exerting pressure on the fastening mechanisms or the ground beneath. This is essential for maintaining the integrity of the railway structure.
- Temperature Variations: The temperature can fluctuate from day to night or season to season. The gaps accommodate these changes, ensuring that the tracks remain in proper alignment and function safely.
Conclusion
In summary, the correct answer is option 'B' — sunny day. The practice of leaving gaps in railway tracks is a vital engineering consideration that ensures safety and functionality. By accounting for the thermal expansion of steel, engineers can prevent potential hazards that might arise due to extreme temperature changes. This careful planning is essential for the safe operation of trains and the overall reliability of rail transportation.
Railway tracks are constructed using steel, which is a material that expands when heated and contracts when cooled. This property is crucial to understand when considering the gaps left between the tracks.
Why Gaps are Necessary
- Thermal Expansion: On a sunny day, when temperatures rise, the steel rails can expand significantly. If there are no gaps, this expansion could cause the tracks to buckle or warp, leading to dangerous situations.
- Safety Precautions: Leaving intentional gaps allows the rails to expand freely without exerting pressure on the fastening mechanisms or the ground beneath. This is essential for maintaining the integrity of the railway structure.
- Temperature Variations: The temperature can fluctuate from day to night or season to season. The gaps accommodate these changes, ensuring that the tracks remain in proper alignment and function safely.
Conclusion
In summary, the correct answer is option 'B' — sunny day. The practice of leaving gaps in railway tracks is a vital engineering consideration that ensures safety and functionality. By accounting for the thermal expansion of steel, engineers can prevent potential hazards that might arise due to extreme temperature changes. This careful planning is essential for the safe operation of trains and the overall reliability of rail transportation.
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