What does a warning signal typically represent?

A warning signal is crucial for ensuring safe navigation on the water, as it communicates important information to boat operators. This type of signal alerts boaters to potential hazards or upcoming dangers, such as shallow water, rocks, or blind bends in the waterway. The purpose of a warning signal is to give mariners advance notice so they can take timely action to avoid accidents or collisions.

In contrast, options that suggest signaling for turns, approaching another vessel, or passing do not fulfill the specific intent of a warning signal. Those options refer to navigation protocols or maneuvering, which focus on the interaction between vessels rather than indicating potential risks in the environment. This distinction highlights the importance of understanding different types of navigational signals to enhance safety on the water.