What code corresponds to Track repeater relay?

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Multiple Choice

What code corresponds to Track repeater relay?

Explanation:
Abbreviations on track diagrams use concise codes for each piece of equipment. Track repeater relay is designated by Tp. This label directly reflects the device’s role: a relay that repeats the track circuit’s status to another point in the interlocking or indicators, so the code Tp is the standard shorthand for it. The other endings (bx, cx, yp, etc.) don’t align with the conventional Tp designation for a track repeater relay, so they’re not used for this component. In short, Tp is the correct code because it matches the established labeling pattern for track repeater relays.

Abbreviations on track diagrams use concise codes for each piece of equipment. Track repeater relay is designated by Tp. This label directly reflects the device’s role: a relay that repeats the track circuit’s status to another point in the interlocking or indicators, so the code Tp is the standard shorthand for it. The other endings (bx, cx, yp, etc.) don’t align with the conventional Tp designation for a track repeater relay, so they’re not used for this component. In short, Tp is the correct code because it matches the established labeling pattern for track repeater relays.

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