What is the function of a horn on a boat?

The function of a horn on a boat is primarily to signal intentions to other vessels, especially in conditions of reduced visibility, such as fog or heavy rain. This communication is crucial for ensuring safety on the water. The use of a horn allows boaters to convey their actions or plans to others nearby, helping to prevent collisions and ensuring that all boat operators are aware of each other's movements.

While other options may seem relevant, they do not encompass the core purpose of a boat's horn as effectively. For instance, while it can alert other boats to your presence, which is important in busy waterways, the critical aspect is that it signals specific intentions, particularly when visibility is compromised. This understanding reinforces safe navigation practices and enhances communication among boaters, contributing to a safer boating environment.