If ‘A’ marker is extinguished in automatic section, signal is treatd as ______________.
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A.
Automatic.
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B.
Manually Operated.
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C.
Gate Signal.
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D.
Permissive
Correct Answer:
B. Manually Operated.
Explanation:
In railway signaling, an Automatic Stop Signal is identified by an 'A' marker. When this marker is lit, the signal operates automatically based on track occupancy. However, if the 'A' marker is extinguished, the signal's status changes. According to Indian Railways operating rules, a Semi-Automatic signal with an extinguished 'A' marker must be treated as a Manually Operated signal. In this state, the Loco Pilot cannot pass the signal at 'ON' without specific manual authority, such as written permission or a prescribed authority form (e.g., T/369(3b)), because the signal is being controlled by a station master or signalman rather than the automatic system.
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