General Rules
This ship classification is a vessel that through some exceptional circumstances (propulsion or steering casualties) cannot maneuver to comply with the rules
What is a Vessel Not Under Command
These color lights are used to identify U.S. submarines, dredge pipelines and more.
What is amber/yellow lights?
A vessel at anchor, >100m, must do this in restricted visibility.
What is ring its bell for five seconds and sound its gong for five seconds at 1-minute intervals.
These rules are INTERNATIONAL ONLY!
This is a power driven vessel which, because of her draft in relation to the available depth, is severely restricted in her ability to change course.
What is Constrained by Draft?
True or False. A Sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side.
What is True?
What lights does a power driven vessel >50m have?
What is two mast lights, one forward and lower, a stern light, and running lights.
Two short blasts (Inland AND International)
What is "I intend to leave you on my starboard side" (Inland)? What is "I am altering my course to port" (International)?
From dead ahead, you observe a vessel that has one white light up forward, another white light on the mast, three red lights directly under that, and a green light under that.
What is a vessel constrained by its draft?
Vessels are not this if you are only able to detect them by radar, AIS, or by hearing sound signals.
What is in sight?
You are in a crossing situation. The other vessel has a target bearing of 315 degrees. Which vessel is the stand-on vessel.
What is my vessel?
This is the vessel classification and aspect for these lights: Yellow over white higher up, with a red light further down.
What is a tug towing astern, port aspect?
A Vessel towing astern in restricted visibility will exhibit these lights.
What are the sidelights, stern light, towing light, masthead lights for a towing vessel, and the lights for a vessel restricted in her ability to maneuver?
This rule states you must go slow enough to prevent a collision no matter what the conditions.
What is Rule 6 (Safe Speed)?
When about to cross a narrow channel, you notice there is another vessel in the channel that can only navigate safely through the channel. What do you do?
What is not cross if it will impede the other vessel?
This is the vessel classification for these lights: Red over Red, all around white light.
What is Vessel Aground?
This is the international meaning of the signal "2 long blasts, 1 short blast" in a narrow channel.
What is "I intend to overtake you on your stbd side"?
This is the characteristics of a special flashing light.
What is yellow light, flashing at 50-70 flashes per minute, placed centerline and as far forward on tow, with an arc of not less than 180 degrees and not more than 225 degrees?
You are in a narrow channel, international. You want to overtake the vessel in front of you on her port side. What do you sound?
What is One prolonged blast followed by two short blasts.
You are meeting "head on" a tug towing a barge alongside about a mile away. You would see these lights in addition to the white masthead lights. (inland only)
What are sidelights on each vessel and a special flashing light on the towed vessel.
What is Not Under Command (NUC), Restricted in ability to maneuver (RAM), Constrained by Draft (CBD), Fishing/trawling, Sailing, Power-driven vessel, sea plane, *overtaking.
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