Each mile of railway track required ?a)Between 1670-2200 sleepersb)3 t...
Mile of railway track and the number of sleepers required
In order to lay down a mile of railway track, a certain number of sleepers or ties are required. Sleepers are the rectangular wooden or concrete beams that are laid perpendicular to the rails and provide support and stability to the tracks.
Options given
- a) Between 1670-2200 sleepers
- b) 3 to 5 sleepers
- c) 1760-2000 sleepers
- d) 35,000 trees
The correct answer
The correct answer is option 'c' - 1760-2000 sleepers.
Explanation
Laying railway tracks requires a significant number of sleepers to ensure the stability and durability of the track. The specific number of sleepers can vary depending on various factors such as track type, rail weight, ballast type, and local conditions. However, on average, for a mile of railway track, approximately 1760-2000 sleepers are required.
The number of sleepers required for a mile of railway track can vary within this range due to several factors:
1. Track type:
The type of track being laid can influence the number of sleepers required. Different types of tracks, such as mainline tracks, branch lines, or sidings, may have different spacing requirements for sleepers.
2. Rail weight:
The weight of the rail being used also plays a role in determining the number of sleepers needed. Heavier rails may require closer spacing of sleepers for better support and stability.
3. Ballast type:
The type of ballast used beneath the sleepers can affect the spacing and quantity of sleepers required. Different ballast materials have different load-bearing capacities, which can impact the sleeper requirements.
4. Local conditions:
The local conditions, including the terrain, soil type, and climate, can also influence the number of sleepers needed. For example, in areas with unstable or soft soil, additional sleepers may be required for better support.
Therefore, considering these factors, the range of 1760-2000 sleepers is a reasonable estimate for the number of sleepers required for a mile of railway track.