Which of the following is indicated when a boat 12m in length of longer sounds 1 long blast?

warning signal
One prolonged blast is a warning signal (for example, used when coming around a blind bend or leaving a dock).

What does one prolonged blast +2 short blasts every two minutes mean?

Restricted Visibility One prolonged blast at intervals of not more than two minutes is the signal used by power-driven vessels when underway. One prolonged blast plus two short blasts at intervals of not more than two minutes is the signal used by sailing vessels.

What type of equipment is used to signal a vessels intention to maneuver?

In general, this may be a bell, whistle, or air horn. Though guns–even pots and pans–can make a suitable sound signal useful in getting attention in an emergency, you should always carry the appropriate equipment. Boats at least 39.4 feet to less than 65.6 feet in length – Must carry a whistle and a bell.

What does 3 long and 2 short horns mean?

3 long and 2 short: Master salute. 5 or more short quick blasts: Danger.

How many pyrotechnic signals are in each boat?

three
If pyrotechnic devices are selected, a minimum of three must be carried. Any combination can be carried as long as they add up to three signals for day use and three signals for night use.

What sound signal is required of a power boat that is anchored during restricted visibility?

prolonged blast
Sailing vessels must sound one prolonged blast plus two short blasts every two minutes. When a power driven boat is stopped (underway but making no way), she shall sound two prolonged blasts every two minutes. Boats at anchor shall sound rapid strokes on the bell for 5 seconds at intervals not less than one minute.

What does 5 short horn blasts mean on a boat?

signal danger
Five or more short rapid blasts signal danger, or signal that you do not understand or that you disagree with the other boater’s intentions.

Which signal shall a vessel underway and making way in fog shall sound every two minutes?

Top tips: dealing with fog

Type of vessel	Sound signal required
Under power	One five second blast on the foghorn every two minutes.
Power driven vessel (stopped)	Two five second blasts every two minutes.

What should be the sound signal of a vessel does not understand the sound signal from another vessel as per Rule 34?

When vessels in sight of one another are approaching each other and from any cause 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 shall immediately indicate such doubt by giving at …

What sound signal will a large vessel used to direct a smaller vessel to give way?

short-blast sound signals
And under Rule 16 of the Collision Regulations, any vessel directed by a larger vessel to give way (often by using five short-blast sound signals) must always do so.

What do ship whistles mean?

One short blast = Changing course to starboard (right) Two short blasts = Changing course to port (left) Three short blasts = Operating in reverse. Five short blasts = Danger signal. Two long blasts = Leaving berth.

Why do boats sound their horn?

Both commercial and recreational watercraft use horns and sound signals to indicate their intentions to other boaters. Sound signals are used in place of other signals that you might see in other vehicles, such as turn signal lights or other visual indications.