Which code identifies the negative track lead to the track relay?

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Multiple Choice

Which code identifies the negative track lead to the track relay?

Explanation:
In track circuit wiring, letters identify the circuit and a suffix shows the specific lead or polarity. The negative (return) lead to the track relay is labeled with an X appended to the track circuit code. So TcX is the label that marks the negative track lead to the track relay, distinguishing it from the general track feed (Tc) or other leads like Te or Toh that refer to different parts of the system. This distinction is crucial for proper wiring and testing: when the relay is energized, current flows back through the negative lead TcX, so correctly identifying it ensures you test the right conductor and avoid confusion with other connections.

In track circuit wiring, letters identify the circuit and a suffix shows the specific lead or polarity. The negative (return) lead to the track relay is labeled with an X appended to the track circuit code. So TcX is the label that marks the negative track lead to the track relay, distinguishing it from the general track feed (Tc) or other leads like Te or Toh that refer to different parts of the system. This distinction is crucial for proper wiring and testing: when the relay is energized, current flows back through the negative lead TcX, so correctly identifying it ensures you test the right conductor and avoid confusion with other connections.

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