Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

OOW 3000 > COLREGS > Flashcards

COLREGS Flashcards

1
Q

Sections of the COLREGS

A

Part A - General (Rule 1-3)

Part B - Steering and Sailing (Rule 4-19)

Section I - Conduct of vessels in any state of visibility. (Rule 4-10)
Section II - Conduct of vessels in sight of one another (Rule 11-18)
Section III - Conduct of vessels in restricted visibility (Rule 19)

Part C - Lights and Shapes (Rule 20-31)

Part D - Sound and Light Signals (Rule 32-37)

Part E - Exemptions (Rule 38)

Part F - Verification of compliance with the provisions of the Convention (Rule 39-41)

ANNEXES

Annex I - Positioning and technical details of lights and shapes

Annex II - Additional signals for fishing vessels fishing in close proximity

Annex III - Technical details for sound signal appliances

Annex IV - Distress Signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Part A

A

Rule 1 - Application
Rule 2 - Responsibility
Rule 3 - General Definitions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Part B
Section I

A

Rule 4 - Application
Rule 5 - Look out
Rule 6 - Safe Speed
Rule 7 - Risk of collision
Rule 8 - Action to avoid collision
Rule 9 - Narrow Channels
Rule 10 - TSS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Part B
Section II

A

Rule 11 - Application
Rule 12 - Sailing Vessels
Rule 13 - Overtaking
Rule 14 - Head On situation
Rule 15 - Crossing situation
Rule 16 - Action by give way vessel
Rule 17 - Action by stand on vessel
Rule 18 - Responsibilities between vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Part B
Section III

A

Rule 19 - Restricted Visibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Part C

A

Rule 20 - Application
Rule 21 - Definitions
Rule 22 - Visibility of lights
Rule 23 - Power driven vessels underway
Rule 24 - Towing and Pushing
Rule 25 - Sailing Vessels underway and vessels under oars
Rule 26 - Fishing Vessels
Rule 27 - Vessels NUC or RAM
Rule 28 - Vessels CBD
Rule 29 - Pilot Vessels
Rule 30 - Anchored vessel and vessels aground
Rule 31 - Seaplanes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Part D

A

Rule 32 - Definitions
Rule 33 - Equipment for sound signals
Rule 34 - manoeuvring and warning signals
Rule 35 - Sound signals in restricted vis
Rule 36 - Signals to attract attention
Rule 37 - Distress Signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Part E

A

Rule 38 - Exemptions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ANNEXES

A

Annex I - Positioning and technical details of lights and shapes

Annex II - Additional Signals for fishing vessels fishing in close proximity

Annex III -Technical details of sound signal appliances

Annex IV - Distress Signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Distress Signals

A

a) a gun or other explosive signal fired at intervals not exceeding 1 minute.
b) continuous sounding of fog signalling apparatus
c) rockets or shells throwing red stars, fired one at a time at short intervals
d) signal made by any other signalling method consisting of group …—… (SOS) in morse code.
e) signal sent by radiotelephony consisting of the spoken word MAYDAY.

f) International Code Signal of Distress - November Charlie
g) square flag with a ball above or below
h) flames on the vessel
i) RED rocket parachute flare or hand flare
j) orange smoke signal

k) slowly and repeatedly raising and lowering outstretched arms
l) distress alert by DSC transmitted on
- VHF Channel 70
- MF/HF frequencies 2187.5 kHz, 8414.5kHz, 4207.5kHz, …
m) ship to shore distress alert transmitted by the ships INMARSAT or other mobile satellite service
n) signals transmitted by EPIRB
o) approved signals transmitted by radio communication systems (SART)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Define “Vessel engaged in fishing”

A

“any vessel fishing with apparatus which restrict manoeuvrability. (nets, lines, trawls)”

does NOT include a vessel fishing with fishing apparatus which don’t restrict manoeuvrability. (trolling lines)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Define “Vessel Not Under Command”

A

a vessel through some EXCEPTIONAL circumstances is unable to manoeuvre as required and therefore unable to keep out of the way.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Define “vessel restricted in her ability to manoeuvre”

A

a vessel from the nature of her work
includes but not limited to:
___STAMPS___
-laying, SERVICING or picking up a navigation mark, submarine cable or pipeline. (S)
-TOWING which severely restricts her ability to deviate from their course. (T)
-launching or recovering AIRCRAFT. (A)
-MINE clearance ops. (M)
-replenishment or transferring PERSONS, PROVISIONS or cargo. while underway. (P)
-a vessel engaged in dredging, SURVEYING or underwater operations (S)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Define “vessel constrained by her draught”

A

POWER DRIVEN vessel, due to her draught in relation to the available DEPTH and WIDTH of navigable water, is severely restricted in her ability to deviate from her course.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Define “restricted visibility”

A

ANY condition in which visibility is restricted.
-Fog
-Mist
-Falling snow
-Heavy Rainstorms
-Sandstorms
-Other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Define “underway”

A

a vessel NOT:
- at anchor
- made fast to the shore
- aground

17
Q

Rule 5 - Look out

A

Every vessel shall at all times maintain a proper lookout by sight and hearing as well as all available means appropriate to the prevailing circumstances and conditions

so as to make a full appraisal of the situation and of the risk of collision.

18
Q

Rule 6 - Safe Speed

A

Every vessel shall at all times proceed at a safe speed so she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions.

Factors determining safe speed for all vessels:
V D Makes Little Willies Drip.

and

by vessels with operational radar: Charlie Carr Eats Pie No More.

19
Q

Factors Determining Safe speed for All Vessels:

A

V D Makes Little Willies Drip

(V) : the state of visibility
(D) : the traffic density including concentrations of fishing vessels or any other vessels
(MAKES) : the manoeuvrability of the vessel with special reference to stopping distance and turning ability in the prevailing conditions
(LITTLE) : at night the presence of background light such as from shore lights or from backscatter of her own lights
(WILLIES) : the state of wind, sea and current, and the proximity of navigational hazards.
(DRIP) : the draught in relation to the available depth and width of navigable water

20
Q

Factors Determining Safe speed for
vessels with operational radar:

A

Charlie Carr Eats Pie No More

(CHARLIE) : the characteristics, efficiency and limitations of the radar equipment
(CARR) : and constraints imposed by the radar range scale in use
(EATS) : the effect on radar detection of the sea state, weather and other sources of interference.
(PIE) : the possibility that small vessels, ice and other floating objects may not be detected by radar at an adequate range
(NO) : the number, location and movement of vessels detected by radar
(MORE) : the more exact assessment of the visibility that may be possible when radar is used to determine the range of vessels or other objects in the vicinity.

21
Q

Rule 8 - Action to avoid collision

A

Should be:
- positive
- made in ample time
- with due regard to good seamanship.

22
Q

Rule 7 - Risk of Collision

A

“I will take a regular series of compass bearings of the approaching vessel to determine if risk of collision exists.
If the compass bearing does not appreciably change, then risk of collision is deemed to exist.”

  • Use all available means appropriate to the prevailing circumstances and condition to determine if risk of collision exists.

-If in doubt, assume risk of collision exists.

-Proper use of radar equipment:
>long range scanning for early warning
>radar plotting for systematic observation of detected objects.

-Do not make assumptions based on scanty information, especially radar.

-Be aware a risk of collision may still exist even with an appreciable compass bearing change for:
>large vessels
> a tow
> vessels at close range.

23
Q

Define “Not Impede”

A

take
EARLY ACTION
to allow
SUFFICIENT SEA-ROOM
for the
SAFE PASSAGE
of the
OTHER VESSEL

24
Q

Rule 9 - Narrow Channels
(6)

A
  1. keep as near to the starboard outer limit as safe and practicable.
  2. vessel <20m + sailing vessels + fishing vessels not to impede safe passage of a vessel which can only navigate within the narrow channel or fairway.
  3. a vessel shall not cross if this impedes the safe passage…“…”
  4. Use appropriate sound signals for overtaking and nearing a bend.
  5. Don’t forget Rule 13 obligations + engage hand steering to counter effects of being overtaken!!
  6. any vessel shall avoid anchoring in a narrow channel or fairway
25
Q

The examiner says you are in a narrow channel/fairway…

A

ASK:
“Can I only navigate safely within the narrow channel/fairway?”

26
Q

Rule 10 - TSS
(10 points)

A
  • lowest priority rule
  1. use correct traffic lane + keep clear of traffic separation line/zone.
  2. should not enter traffic separation line/zone UNLESS:
    -emergencies to avoid immediate danger
    -engage in fishing within zone.
  3. join/leave traffic lanes at terminals and do so at small angles
  4. navigate with particular caution around terminations of a TSS.
  5. avoid crossing, if obliged do so at 90°
  6. Do not use inshore traffic zone (ITZ) UNLESS:
    -vessels <20m, sailing vessels + fishing vessels
    -any vessel en route to a place situated in the ITZ. (ie a port)
  7. avoid anchoring in a TTS or near its terminations.
  8. if not using TTS, avoid it by as wider margin as practical.
  9. do not impede!
    - Vessel engaged in fishing do not impede any vessel
    - vessel < 20m or sailing vessel do not impede power driven vessel.
  10. vessel RAM due to her work in a TSS is exempted from this rule.
27
Q

Explain the overtaking rule

A

Rule 13
-Overtaking is the highest priority rule
-Vessel is considered to be overtaking is she is more than 22.5 degrees abaft the beam
-At Night: A white stern light = YOU ARE OVERTAKING
- Overtaking vessel must stay out of the way until finally past and clear and cannot later turn to port and turn it into a crossing situation.

28
Q

Define a “Head On” Situation

A

Rule 14
-Two Power driven vessels
-At Night: a mast headlight and / or both sidelights

29
Q

Define Overtaking

A

Vessel is more than 22.5 abaft the beam.

30
Q

Rule 12
STBD v PORT Tack
LEEWARD v WINDWARD Tack

A

Sailing Vessels
Starboard tack - Stand on
Port Tack - Give way

Leeward vessel - Stand on
Windward vessel - Give way

31
Q

Define Crossing Situation

A

Between 2 power driven vessels
Vessel on starboard side has right of way

32
Q

Action by give way vessel

A

Rule 16 :
“Every vessel which is directed to keep out of the way of another vessel shall,
so far as possible,
take early and substantial action to keep well clear. “

33
Q

Rule 18

A

EXPLANATION:
* Rule 9 + Rule 10 (do not impede) but Rule 18 is still priority.
* Rule 13 (HIGHEST GIVE WAY PRIORTY).

“Except where Rules 9, 10 and 13 otherwise require…”

  • the following shall keep out of the way of another when underway (in priority order)
    1. NUC + RAM
    2. Engaged in fishing
    3. Sailing vessel
    4. PDV + WIG on water
    5. WIG near surface + Seaplane on water

*All vessels except NUC + RAM avoiding impeding a CBD.
*A CBD shall navigate with particular caution having full regard to her special condition.

34
Q

Sight a vessel CBD

A

!!DO NOT TURN TO PORT FOR A CBD ON OWN PORT SIDE!! (Rule 17)

DO NOT IMPEDE A CBD (Rule 18)
“take early action to allow sufficient sea room for the safe passage of the other vessel.”

A CBD shall navigate with particular caution having full regard for her special condition. (Rule 18)

35
Q

Rule 17

A
  • Any Vessel : Shall , May , Shall…

*SHALL keep her course and speed

*MAY take action to avoid collision by her manoeuvre alone as soon as it is apparent that give way vessel not taking action

*if so close that collision cannot be avoided by action of give way vessel alone, SHALL take such action as will best avoid collision

additionally:
-Power driven vessel shall avoid turning to port for another PDV on her own port side. (also includes a CBD!)

-does not relieve the give way vessel of her duty to keep out of the way

OOW 3000 (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions