Which flag is recognized as a distress signal?

The International Code Flag "N" (November) is recognized as a distress signal because it conveys the message "No" in the International Morse Code. In maritime communication, this flag can indicate that a vessel is in distress and requires assistance. The use of the November flag as a signal for distress is part of a broader system of communication intended to ensure safety and prompt response in emergency situations at sea.

While other flags have specific meanings in the International Code of Signals, they do not specifically indicate distress. Thus, the November flag stands out in this context as a clear and recognized signal that calls for help. It is crucial for mariners to understand these signals to ensure effective communication and safety while on the water.