Which horn signal is used to acknowledge any other signal not provided for?

Which horn signal is used to acknowledge any other signal not provided for?

• A. The Horn signal for Acknowledgement of any other signal not otherwise provided for.
• B. The horn sound for Approaching Roadway Workers.
• C. The horn signal for Acknowledgement of a Stop Signal other than a fixed signal.
• D. The horn signal for When standing, start.

Answer: (A)

In NORAC, there’s a dedicated horn signal used specifically to acknowledge any signal not otherwise provided for. This standard acknowledgment keeps communication clear when a signal doesn’t have its own published horn pattern, letting the train crew know that the signal has been observed and will be complied with. The other signals are for particular situations: one is used when approaching roadway workers, another when acknowledging a stop signal that isn’t a fixed signal, and another for starting after standing still. Those patterns are tied to their specific scenarios, whereas the general acknowledgment signal covers signals that aren’t defined elsewhere.

In NORAC, there’s a dedicated horn signal used specifically to acknowledge any signal not otherwise provided for. This standard acknowledgment keeps communication clear when a signal doesn’t have its own published horn pattern, letting the train crew know that the signal has been observed and will be complied with.

The other signals are for particular situations: one is used when approaching roadway workers, another when acknowledging a stop signal that isn’t a fixed signal, and another for starting after standing still. Those patterns are tied to their specific scenarios, whereas the general acknowledgment signal covers signals that aren’t defined elsewhere.