What do two short blasts convey to other vessels?

Two short blasts of a vessel's horn signal the intent to pass another vessel on the starboard side, which is the right side when looking towards the bow of the boat. This communication is essential for maintaining safety and awareness on the water, as it conveys the navigational intentions of the vessel so that other boaters can anticipate movements and react accordingly. The use of sound signals is a standard practice in maritime navigation, and understanding these signals helps prevent collisions and ensures safe passage in busy waterways.

The other options relate to different sound signals. For example, a single blast is used to indicate the intent to pass on the port side or to communicate that a vessel is backing up. However, these options do not correspond to the two short blasts, which specifically communicate the intention to pass on the starboard side. Recognizing and responding to these auditory signals is vital for all boat operators to ensure effective communication on the water.