Sound Signals Flashcards
How long is a short blast?
One second’s duration
How long is a long blast?
Four to sex second’s duration
One short blast?
I am altering my course to starboard
Two short blasts?
I am altering my course to port
Three short blasts?
I am operating astern propulsion
Overtaking in narrow channel or fairway
Two prolonged one short?
I intend to overtake you on your
starboard side
Two prolonged two short?
I intend to overtake you on your
port side
What does the vessel being over taken in narrow channel or fairway sound?
Morse C
-.-.
Five short blasts?
Failure 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
Sound signal for nearing a bend in channel or a fairway?
One prolonged blast
Shall be answered with one prolonged blast that may be around the bend
Sound signals for power driven vessel making way in restricted vis?
One prolonged at intervals not exceeding 2 miniutes
Sound signals for power driven vessel underway not making way in restricted vis?
Two prolonged at intervals not exceeding 2 minutes
Sound signals for vessels other than power driven in restricted vis?
One prolonged two short at intervals not exceeding 2 minutes
Sound signals for a vessel engaged in fishing at anchor or RAM when carrying out her work at anchor?
One prolonged two short at intervals not exceeding 2 minutes
Sound signals for Tow in restricted vis?
Towing vessel: One prolonged two short at intervals not exceeding 2 minutes
Vessel being towed (if manned): One prolonged three short at intervals not exceeding 2 minutes straight after the towing vessel
Sound signals for Pushing as a part of a composite group unit in restricted?
Same as power driven vessels
Sound signals for a vessel at anchor in restricted vis? (under 100m)
Rapid ringing of the bell for 5 seconds at intervals not exceeding one minute
May also sound Morse R .-. to give warning of her position and of the possibility of collision to an approaching vessel.
Sound signals for a vessel at anchor in restricted vis? (100m+)
Rapid ringing of the bell for 5 seconds in the forepart of the vessel and followed by 5 seconds of the gong in the after part of the vessel at intervals not exceeding one minute.
May also sound Morse R .-. to give warning of her position and of the possibility of collision to an approaching vessel.
Sound signals for vessel aground in restricted vis? (under 100m)
3 distinct strokes on the bell - 5 seconds rapid ringing of the bell - 3 distinct strokes of the bell at intervals not exceeding one minute.
May also sound Morse L .-.. (you should stop your vessel immediately) and Morse U ..- (you are running in to danger)
Sound signals for vessel aground in restricted vis? (100m+)
3 distinct strokes on the bell - 5 seconds rapid ringing of the bell - 3 distinct strokes of the bell - 5 seconds of the gong at intervals not exceeding one minute.
May also sound Morse L .-.. (you should stop your vessel immediately) and Morse U ..- (you are running in to danger)
Sound signals in restricted vis for vessels less than 20m?
Dont have to make sounds, but she does it needs to be effiecient at intervals not exceeding 2 minutes
Sound signal for a pilot vessel in restricted vis?
Same as power driven vessels.
May in addition also sound four short blasts.