Colregs Part D, Sound and Light Signals Flashcards
Rule 32, Definitions:
What does the term Whistle mean?
Any sound signalling appliance capable of producing the prescribed blasts and which complies to the specifications in Annex III of these regulations
Rule 32, Definitions:
How long is a short blast considered to be?
1 second
Rule 32, Definitions:
How long is a prolonged blast considered to be?
4-6 seconds
Rule 33 Equipment for sound signals
>12m
> 12m or more, Whistle
All shall comply with Annex III of these regulations
Rule 33 Equipment for sound signals
>20m
> 20 or more, bell and whistle
Rule 33 Equipment for sound signals
>100m
> 100m or more, bell, whistle, gong
Rule 33 Equipment for sound signals
<12m
<12m in length shall not be obliged to carry under this rule, but must carry another form of sound signalling
Rule 34 (a), when shall a power driven vessel use manoeuvring signals?
When in sight of one another
Rule 34, manoeuvring signals
Light signals will be visible from what range:
What type of light will it be and it shall comply with which annex:
5 miles
All round white light
Annex I
Rule 34, manoeuvring signals
c) overtaking in fairway/narrow channel
two prolonged one short, stbd
Two prolonged two short, port
Charlie, one prolonged one short, Affirmative
Rule 34 (f), if whistles are spaced at distances on board more than 100m apart, may multiple whistles be used for manoeuvring?
No
Rule 35, sound signals in restricted visibility
PDV making way through the water
1 prolonged blast, intervals of no more than 2 minutes
Rule 35, sound signals in restricted visibility
PDV underway but stopped
2 prolonged blasts, intervals not exceeding 2 minutes
Rule 35, sound signals in restricted visibility
NUC
RAM
CBD
SV
VEIF
TOWING/Pushing
Morse Delta, 1 prolonged, 2 short
Rule 35, sound signals in restricted visibility
VEIF/RAM, at anchor, whilst carrying out work
Morse Delta 1 prolonged 2 short
Rule 35, sound signals in restricted visibility
Vessel towed/more than one vessel towed, the last vessel in the tow:
Morse Bravo
1 prolonged, 3 short
Immediately after the towing vessel makes their signal
Rule 35, sound signals in restricted visibility
Rigidly connected towing/pushing:
PDV, therefore same as subparagraph a) or b)
Rule 35, sound signals in restricted visibility
Vessels at anchor <100m
> 100m
A vessel at anchor may also sound
ring bell rapidly for 5 seconds
Bell for 5 seconds in fore part, followed by gong in aft part for 5 seconds
one short, one prolonged, one short, to warn approaching vessels of her position
Rule 35, sound signals in restricted visibility
Vessel aground
<100m
>100m
<100m, 3 strokes, rapid ringing, 3 strokes
> 100m, 3 strokes, rapid ringing, 3 strokes, rapid gong
A vessel aground may additionally sound an appropriate whistle signal
Whistle signal/s for a vessel aground:
Lima *-** Stop immediately
Uniform **- You are running into danger
Rule 35, sound signals in restricted visibility
12 or more but <20m is not obliged to make which fog signals?
Is not obliged to make anchor or aground signals, however, if she does not, she shall sound:
Any efficient sound, intervals no more than 2 minutes
Rule 35, sound signals in restricted visibility
<12m
Not obliged to make sound signals prescribed in this rule, BUT
SHALL make some other efficient sound, intervals not exceeding 2 minutes
Rule 35, sound signals in restricted visibility
Pilots vessels engaged in pilotage duty
Shall sound a), b) or g) MW/UW/Anchor
additionally, she may sound 4 short blasts
Rule 36 Signals to attract attention
ANY vessel may make light or sound signals that:
Are not to be mistaken for those in these rules
She may direct her searchlight in the direction of danger, so as not to embarrass the other vessel
Nothing shall be mistaken for an AToN
