APPSC AEE 2012, UPPSC State Engg. A.E. 2003, ESE 1997
⭕ A. interlocking point and signal
⭕ B. setting points and crossings
⭕ C. setting marshalling yard signals
⭕ D. track maintenance
📚 Explanation:
A treadle bar is an electronic device placed near the point of switching in the railway track system. It is activated when a train passes over it and is mainly used for interlocking point and signal operations.
🔹 Ensures that the position of points (switches) is correctly linked with the signal aspect.
🔹 Enhances safety by preventing conflicting train movements.
Where is it installed?
It is typically placed just ahead of points where the train movement needs to be detected for safe switching.
A treadle bar is an electronic device placed near the point of switching in the railway track system. It is activated when a train passes over it and is mainly used for interlocking point and signal operations.
🔹 Ensures that the position of points (switches) is correctly linked with the signal aspect.
🔹 Enhances safety by preventing conflicting train movements.
Where is it installed?
It is typically placed just ahead of points where the train movement needs to be detected for safe switching.
👉 Therefore, the correct answer is: A. Interlocking point and signal
Key Points on Treadle Bar:
- Provides train detection near switching points.
- Used in interlocking to prevent unsafe movements.
- Improves signaling safety by activating related circuits.
