Which of the following incorrectly represents the function of sleepers...
Incorrect Function of Sleepers in the Layout of Railway Tracks
The correct answer is option 'C' which states that sleepers act as a nonelectric medium between rails and ballast. This answer is incorrect because sleepers actually serve an important electrical function in the layout of railway tracks.
Function of Sleepers
Sleepers, also known as railroad ties, are rectangular or trapezoidal support structures that are typically made of wood, concrete, or steel. They are laid perpendicular to the rails and play a crucial role in the stability and proper functioning of railway tracks. The main functions of sleepers in the layout of railway tracks are as follows:
1. Holding the Rails at Proper Gauge on Straight Tracks: Sleepers are responsible for maintaining the correct gauge or distance between the rails. They are laid at regular intervals along the track, and the rails are fastened to them using various techniques such as spikes or clips. By holding the rails in place, sleepers ensure that the train wheels roll smoothly along the track without any deviation.
2. Transferring the Load of Moving Train to Ballast: Sleepers act as a connection between the rails and the ballast, which is the layer of crushed stones or gravel beneath the track. When a train passes over the tracks, the weight of the train and its load is transferred to the sleepers. The sleepers, in turn, distribute this load to the underlying ballast, which spreads the load evenly and provides stability to the track.
3. Providing Support and Stability: Sleepers serve as a support structure for the rails, ensuring that they are held firmly in place. They prevent lateral movement or shifting of the rails, which could lead to accidents or derailments. Sleepers also help to distribute the load of the train evenly across the track, minimizing the stress on individual components and increasing the overall stability of the railway infrastructure.
4. Allowing for Track Maintenance: Sleepers provide easy access to the rails for maintenance and repair work. They can be easily replaced or adjusted when necessary, allowing for efficient track maintenance and preventing any disruptions to train services.
In conclusion, sleepers in the layout of railway tracks perform various important functions, including holding the rails at the proper gauge, transferring the load of moving trains to the ballast, providing support and stability to the track, and facilitating track maintenance. The incorrect statement in the given options is option 'C', which wrongly suggests that sleepers act as a nonelectric medium between rails and ballast.
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