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- UPSC Civil Service Exam Questions - Section 19
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- UPSC Civil Service Exam Questions - Section 25
- UPSC Civil Service Exam Questions - Section 26
- UPSC Civil Service Exam Questions - Section 27


UPSC Civil Service Exam Questions - Engineering
Q1: A Treadle bar is used forA Interlocking points and signal
B
Setting points and crossings
C Setting marshalling yard signals
D
track maintenance
ANS:A - Interlocking points and signal A treadle bar is generally installed at the point of switching the track system. A treadle bar is an electronic circuit that is activated only when the train is passing over it. |


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