One long blast of sound announces a boat's presence to other boats.
Vessel operators can alert the lock attendant of their request to transit through the lock by sounding one prolonged blast followed by one short blast
blind bend
one prolonged blast
The sound signal that you should hear when a power boat is in the fog is one prolonged blast at intervals of no more than 2 minutes.
Stay out of the way! One prolonged blast is the whistle signal for a ship leaving a berth or in a blind bend in a channel.
One prolonged blast followed by one short blast signals to a river lock attendant that a vessel is requesting to enter the lock. This sound pattern is a standard communication method used in maritime navigation to convey a specific intention. The prolonged blast indicates the vessel's approach, while the short blast serves to confirm the request for lock entry.
Three short blasts means you are operating in reverse. One prolonged blast followed by 3 short blasts means boat under tow in redcued visibility conditions.
You are operating a motorboat. You hear one prolonged blast from the horn of another vessel. What should you do?
B
one prolonged blast
You should go left