Rules & Basics
This rule says nothing in the Rules excuses a vessel from taking precautions required by ordinary seamanship.
What is Rule 2 -Responsibility
A power-driven vessel underway at night shows these basic lights.
What are masthead light, sidelights, and sternlight?
One short blast means this.
What is I am altering my course to starboard?
This term means the bearing of another vessel does not appreciably change.
What is risk of collision?
This rule applies to vessels not in sight of one another when navigating in or near restricted visibility.
What is Rule 19?
This rule requires every vessel to maintain a proper lookout by sight, hearing, and all available means.
What is Rule 5 — Lookout?
A sailing vessel underway shows these sidelights and this.
What is a sternlight?
Two short blasts mean this.
What is I am altering my course to port?
This vessel must keep out of the way in a crossing situation between two power-driven vessels.
What is the vessel that has the other vessel on her own starboard side?
In restricted visibility, every vessel shall proceed at this type of speed.
What is safe speed adapted to the prevailing circumstances and conditions?
This rule deals with safe speed.
What is Rule 6 — Safe Speed?
A vessel not under command shows these lights.
What are two all-round red lights in a vertical line?
Five or more short and rapid blasts indicate this.
What is danger or doubt?
The stand-on vessel shall keep this until it becomes apparent the give-way vessel is not taking proper action.
What is course and speed?
A vessel hearing a fog signal forward of the beam shall reduce speed to this minimum.
What is the minimum at which she can be kept on course?
This rule gives the responsibilities between vessels, including power-driven, sailing, fishing, and constrained vessels.
What is Rule 18 — Responsibilities Between Vessels?
This vessel shows this red-white-red vertical light pattern.
What is a vessel restricted in her ability to manoeuvre?
One prolonged blast every 2 minutes is used by this type of vessel in restricted visibility.
What is a power-driven vessel making way through the water?
In a head-on situation between two power-driven vessels, both vessels should alter course this way.
What is starboard?
A vessel shall avoid altering course this way for a vessel forward of the beam, other than for a vessel being overtaken.
What is an alteration of course to port?
This rule says vessels shall use all available means appropriate to determine if risk of collision exists.
What is Rule 7 — Risk of Collision?
A vessel engaged in fishing, other than trawling, shows this vertical light pattern
What are red over white all-round lights?
A vessel at anchor in restricted visibility rings this.
What is the bell rapidly for about 5 seconds every minute?
Any alteration of course or speed should be large enough to be this.
What is large enough to be readily apparent to another vessel observing visually or by radar?
In restricted visibility, action to avoid collision shall be taken in ample time and with careful regard to this.
What are the prevailing circumstances and conditions of restricted visibility?