Which sound signal indicates doubt that sufficient action is being taken by another vessel to avoid collision?
the whistle
When vessels in sight of one another are approaching each other and either vessel fails to understand the intentions or actions of the other, or is in doubt whether sufficient action is being taken by the other to avoid collision, the vessel in doubt must immediately indicate such doubt by giving at least five short.
What sound signal should a motorized boat use during reduced visibility?
long blast
During Periods of Reduced Visibility Motorized boats should sound one long blast every two minutes. Boats at anchor should blast a sound signal rapidly for about five seconds every minute.
What do the sound signals on a boat mean?
Some common sound signals that you should be familiar with as a pleasure craft operator are as follows. One short blast tells other boaters “I intend to pass you on my left (port) side.” Two short blasts tell other boaters “I intend to pass you on my right (starboard) side.”
Do you have to sound your horn when passing another vessel?
If you approach another vessel head on, and wish to pass it on its starboard side, you are required to sound two short blasts with your horn. If the other vessel is in agreement, they should sound the same signal in response.
How many blasts does a boat need to respond to a horn signal?
As with all horn signals, the vessel being overtaken must respond with agreement (by sounding the same signal) or with disagreement (by sounding the danger signal of five short blasts). Note that you can never answer one blast with two or vice versa.
What does the blind bend signal on a boat mean?
It is sometimes referred to as the “blind bend signal”. Two Short Blasts – This means “I intend to leave you on MY starboard side”. When you pass near another boat, you will manuever by leaving them on your right side as you pass.