What type of signal is NOT covered by the definition of a distant signal?

Study for the US Railroad General Code of Operating Rules Test. Review multiple choice questions with detailed explanations. Enhance your knowledge and prepare for your exam!

A distant signal is typically used to inform a train crew of the status of a signal located ahead, particularly in indicating the condition of a block signal. Distant signals provide advance notice to help the train crew prepare for upcoming situations.

The correct answer indicates that an approach signal does not fall under the category of distant signals. Approach signals serve as warnings for the train crew to prepare for a stop at an upcoming signal. They are typically located closer to the signal they pertain to, indicating an imminent aspect change or stop requirement.

In contrast, block signals directly manage train movements within specific segments of track, and interlocking signals govern the movement through interlocking points to ensure safety. Switch point indicators inform train crews about the position of switch points but do not provide the advance information that distant signals do regarding signals further down the line. Therefore, none of these fulfill the definition of a distant signal, as they serve different purposes relative to train operations.

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