#3 Navigation Stack 61-90 Flashcards
A whistle blast of 4 to 6 seconds is what type of blast?
Prolonged Blast.
In a narrow channel, in International waters, a vessel intending to overtake another vessel to starboard, sounds that whistle signal?
Two prolonged followed by one short blast.
When there is doubt about a sounded signal and sufficient action is NOT being taken to avoid collision, which signal should be sounded?
Five Short Blasts.
According to the Inland Rules, what whistle signal should you recommend in order to agree with a proposal from a ship astern to pass your ship to starboard?
One Short Blast.
A vessel underway, but making no way through the water, standing in a fog, must sound which of the following signals?
Two prolonged blasts with an interval of two seconds between the blasts, every two minutes.
A whistle signal of four short blasts identifies what situation?
A pilot vessel on pilotage duty.
Ships engaged in UNREP have right-a-way over what units?
Units conducting flight ops.
What unique light is displayed by an air cushion vehicle?
All around yellow flashing light.
What unique light is displayed by a towing vessel with a tow under 200 meters?
Two masthead lights.
What unique light is displayed by towing vessel with a tow over 200 meters?
Three masthead lights.
What day shape is displayed by a towing vessel?
Diamond.
What day shape is displayed by a sailing vessel propelled by machinery?
Cone with apex down.
What navigation lights and day shapes are displayed by a trawling vessel?
Green over white/
Two cones with apexes together.
What navigation lights are displayed by fishing vessel?
Red over White.
What navigation lights and day shapes are displayed by a vessel not under command?
Red over Red/
Ball over Ball.
What navigation lights and day shapes are displayed by a vessel restricted in her ability to maneuver?
Red over White over Red/
Ball-Diamond-Ball
What navigation lights and flags are displayed by diving vessels?
Red over white over red/
Code Alpha.
What navigation lights and day shapes are displayed by a vessel constrained by her draft?
Three vertical red lights/
Cylinder.
What lights are displayed by a pilot vessel?
White over red.
What navigation lights and day shapes are displayed by a vessel aground?
Red over Red/
Three black balls.
What navigation lights and day shapes are displayed by a vessel at anchor?
Anchor lights and deck lights/
Black ball.
What is the general principle embodied in Rule 18 of the Rules of the Road?
That more maneuverable vessels keep clear of those less maneuverable.
What are the two types of buoy systems?
Lateral and Cardinal.
Lateral used for well-defined coast.
Red Starboard even.
Green Port odd.
Cardinal used for shoal.
Red to Port, Black to Starboard.
What type of buoy mark indicates the port and starboard hand sides of a channel?
Lateral Mark.
