Respuesta :
Sound signals are used during sailing to communication one's intention to other users. When you are not in agreement with another vessel's intent, you are required to sound the danger signal which is made up of five short and rapid blasts; the duration of each blast and the interval between the flashes should be about one second.
Answer:
One Short Blast
Explanation:
If the launch approaches you and it sounds two short blasts, it means that the boom intends to allow you to pass them on the starboard side, that is, on the right side.
However, you do not want to do this, and you want to pass on the left side of the boat door. To communicate your desire to the motorboat, you have to sound one short blast. This sign allows you to say "I want to pass on your left side, next to your door and not on the starboard side".