During access to the danger zone on a track circuit, where should the jumper cable be applied?

During access to the danger zone on a track circuit, where should the jumper cable be applied?

• A. To the same track
• B. Across both tracks
• C. To the adjacent track
• D. To the signal box

Answer: (C)

Access to the danger zone in a track circuit requires maintaining the protective electrical arrangement while you work. The jumper cable should be connected to the adjacent track because that provides a safe electrical reference through a track that you’re not actively working on, helping to preserve the circuit’s protection for the line you’re entering and avoid creating misleading signals. Placing it on the same track would bypass the intended protection, while tying it across both tracks or to the signal box wouldn’t establish the proper, isolated path needed for safe access.

Access to the danger zone in a track circuit requires maintaining the protective electrical arrangement while you work. The jumper cable should be connected to the adjacent track because that provides a safe electrical reference through a track that you’re not actively working on, helping to preserve the circuit’s protection for the line you’re entering and avoid creating misleading signals. Placing it on the same track would bypass the intended protection, while tying it across both tracks or to the signal box wouldn’t establish the proper, isolated path needed for safe access.