1
Q
Where do the COLREGS Apply?
A
These rules apply to all vessels on the high seas and in all waters connected therewith navigable by seagoing vessels
2
Q
Define vessel constrained by her draught
A
The term vessel constrained by her draught means a power driven vessel which, because of her draught in relation to the available depth and width of navigable water, is severely restricted in her ability to deviate from the course she is following
3
Q
Define vessel restricted in ability to manoeuvre.
A
The term vessel restricted in her ability to manoeuvre means a vessel which, from the nature of her work, is restricted in her ability to manoeuvre as required by these rules and is therefore unable to keep out of the way of another vessel
4
Q
Define a Vessel
A
The word “vessel” includes every description of watercraft, including non-displacement craft, WIG craft and Seaplanes, used or capable of being used as a means of transportation on the water
5
Q
Define Power Driven Vessel
A
The term power driven vessel means any vessel propelled by machinery
6
Q
Define Seaplane
A
The word seaplane includes any aircraft designed to manoeuvre on the water
7
Q
Define Vessel Not Under Command
A
The term vessel not under command means a vessel which through some exceptional circumstance is unable to manoeuvre as required by these rules and is therefore unable to keep out of the way of another vessel
8
Q
Define wing in ground craft
A
The term wing in ground (WIG) craft means a multi-modal craft which in its main operational mode, flies in close proximity to the surface utilizing surface effect action
9
Q
Define Underway
A
The word underway means that a vessel is not at anchor, or made fast to the shore or aground
10
Q
Is there an example where a departure from the rules may be necessary?
A
With multiple vessels, you may be both the stand on and give way vessel (vessel crossing while you are being overtaken by another vessel)
11
Q
If the government makes special rules, should they be as similar or different to the rules as possible?
A
Similar
12
Q
If a government puts special lights on a vessel, should they be as similar to the normal lights or as different as possible? Why?
A
Different, to avoid confusion
13
Q
Can you get a dispensation from your flag for the number, range or arc of visibility of lights. Why?
A
Yes, If the vessels construction does not allow the normal rules to be followed
14
Q
When are vessels in sight of one another?
A
Vessels shall be deemed to be in sight of one another only when one can be observed visually from the other
15
Q
Do the COLREGS apply in inland lakes?
A
no
16
Q
What does the first part of rule 2 mean?
A
You cannot use the rules as an excuse for a collision
17
Q
What does the second part of rule 2 mean?
A
There are times when you have to depart from the rules to avoid danger
18
Q
Where are the high seas?
A
Waters Navigable by seagoing vessels
19
Q
Why is a vessel engaged in fishing so clearly defined?
A
To stop persons whose fishing gear does not restrict manoeuvrability acting as a vessel engaged in fishing
20
Q
Do the rules mention hovercrafts?
A
No, it talks about non-displacement craft
21
Q
What does the term restricted in ability to manoeuvre include?
A
(i) a vessel engaged in laying, servicing or picking up a navigation mark, submarine cable or pipeline;
(ii) a vessel engaged in dredging, surveying or underwater operations;
(iii) a vessel engaged in replenishment or transferring persons, provisions or cargo while underway;
(iv) a vessel engaged in the launching or recovery of aircraft;
(v) a vessel engaged in mine clearance operations;
(vi) a vessel engaged in a towing operation such as severely restricts the towing vessel and her tow in their ability to deviate from their course.
22
Q
Define Restricted visibility
A
The term restricted visibility means any condition in which visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms or any other similar causes
23
Q
Define Length + Breadth
A
The words length and breadth of a vessel mean her length overall and greatest breadth
24
Q
Define Sailing Vessel
A
The term “sailing vessel” means any vessel under sail provided that propelling machinery, if fitted, is not being used
25
Define Vessel engaged in fishing
The term "Vessel engaged in fishing" means any vessel fishing with nets, lines, trawls or other fishing apparatus which restrict manoeuvrability, but does not include a vessel fishing with trolling lines or other fishing apparatus which do not restrict manoeuvrability
26
Can a vessel be involved in launch and recovery of aircraft and NOT be restricted in ability to maneuvre? Why?
No
'The term “vessels restricted in their ability to manoeuvre” shall include but not be limited to:'
27
Is a vessel transferring a pilot restricted in ability to manoevre? Why?
Yes
'The term “vessels restricted in their ability to manoeuvre” shall include but not be limited to:'
28
Is a vessel RAM/NUC/CBD if she doesn’t have the requisite lights / shapes displayed?
Yes, the definitions in the COLREGS are not contingent on the displayed lights + shapes
29
How would you know if a TSS is adopted by the IMO or if it is a local one?
IMO Publication "Ships routeing"
Chapter 17 of "Annual summary of notices to mariners"
30
How large is a large alteration of course?
One large enough to be readily apparent to a vessel observing visually or by radar
31
What is a safe speed?
A speed that you can take proper and effective action to avoid collision and be stopped in a distance appropriate to the prevailing circumstances and conditions
32
Who can use an inshore traffic zone?
Vessels less than 20m in length
Sailing vessels
Vessels engaged in fishing
Vessels en route to or from a port, offshore installation or structure, pilot station or any other place situated within the inshore traffic zone
To avoid immediate danger
33
When will you alter for a vessel, when you are to alter?
In ample Time
34
How would you use a radar to determine if risk of collision exists?
By plotting the target
35
What is a safe distance?
It Depends on the circumstance - our company requirements were 3 miles cpa in open water and 1 mile in confined waters
36
You are in a narrow channel and a vessel less than 20m is crossing from starboard, what do you do?
Although he is required not to impede your passage, you still have to give way
37
A Vessel of less than 20m in length is proceeding along a narrow channel. Who should not impede his passage?
A Vessel engaged in fishing
38
When proceeding along a narrow channel or fairway on a power driven vessel who should not impede your passage?
Safe Passage
- VSL less than 20m
- sailing vessel
Passage
- Vessel engaged in fishing
39
When could rule 10 (TSS) not apply?
Normal Crossing situation
40
How do you deal with a vessel who you are "Not to impede the safe passage of"?
Give him a wide berth
41
What would be a safe speed when going up the yangste river? Who decides on that?
A speed that you can take proper and effective action to avoid collision and be stopped in a distance appropriate to the prevailing circumstances and conditions
Captain Decides
42
Why would you slack speed in a traffic situation?
To allow more time to assess the situation
43
Why do we prefer alterations of course?
More readily apparent to vessels observing
44
What is the difference between the vessels that shall not be impeded in a narrow channel or fairway for a vessel less than 20m, a sailing vessel or vessel engaged in fishing?
Vessel less than 20m/sailing vessel: "Vessel which can safely navigate only within a narrow channel or fairway"
Vessels engaged in fishing: "Any other vessel navigating within a narrow channel or fairway"
45
To what extent is a RAM vessel exempt from the rules in a TSS?
To the extent necessary to carry out the operation
46
Do you have to use a TSS?
No, but if you aren't, avoid it by as wide a margin as practicable
47
Is there any reason why you may not cross a TSS at a heading of 90° to the lane?
If you have to alter for traffic
48
Does rule ten apply to a vessel using an inshore traffic zone?
no
49
Can a vessel fish in a tss?
Yes, but they shall not impede the passage of any vessel following a traffic lane
50
What is rule 10?
Traffic separation schemes
51
Does the rules for traffic separation schemes relieve any vessel of her obligations under any other rule?
no
52
What separation Schemes does rules 10 apply to?
Traffic separation schemes approved by the organisation (IMO)
53
What are some examples of "All available means" with regards to lookout?
Radar
Echo-systems
Ais
GMDSS (For monitoring - not agreeing passing)
54
What would be precautions required by the ordinary practice of seamen?
A vessel underway keeping out of the vessel at anchor Following A non-mandatory TSS
55
Why do we keep a lookout?
To make a full appraisal of the situation and of the risk of collision
56
Would you prefer an alteration of course or speed?
Course, provided there is sufficient sea-room, it is made in good time, it is substantial and does not result in another close-quarters situation
57
A vessel less than 20m and a sailing vessel shall do what in a TSS?
Shall not impede the safe passage of a power driven vessel following a traffic lane
58
What does "shall not impede" mean?
Keep out of the way
59
What are the factors affecting the safe speed by all vessels?
(1) The state of visibility
(2) The traffic density, including concentrations of fishing vessels or any other vessels
(3) The manoeuvrability of the vessel with special reference to stopping distance and turning ability in the prevailing conditions
(4) At night the presence of background light such as from shore lights or from backscatter of her own lights
(5) The state of the wind, sea and current and the proximity of navigational hazards
(6) The draught in relation to the available depth of water
60
How do you determine if risk of collision exists?
Take a series of compass bearings of an approaching vessel
61
How do you know if a risk of collision exists?
The compass bearing does not appreciably change for an approaching vessel
62
Can there be an appreciable change in compass bearing and still be a risk of collision?
Yes
When approaching a very large vessel, a tow or when approaching a vessel at close range
63
What should be avoided in alterations?
A succession of small alterations of course and/or speed
64
A vessel engaged in fishing shall do what in a TSS?
Shall not impede the passage of any vessel following a traffic lane
65
Factors affecting safe speed by vessel with operational radar?
(1) The characteristics, efficiency and limitations of the radar equipment
(2) Any constraints imposed by the RADAR range scale in use
(3) The effect on RADAR detection of the sea state, weather and other sources of interference
(4) The possibility that small vessels, ice and other floating objects may not be detected by radar at an adequate range
(5) The number, location and movement of vessels detected by RADAR
(6) 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
66
What should you avoid doing in a TSS?
Keep Clear of a traffic separation line or separation zone
Not use an inshore traffic zone if you can safely use the appropriate lane in the adjacent TSS
Anchoring in a traffic separation scheme or in areas near its terminations
67
What do you do in a TSS?
Proceed in the appropriate traffic lane in the general direction of traffic flow for that lane
Join or leave a traffic lane at the termination of that lane but when joining or leaving from either side shall do so at as small angle to the general direction of traffic flow as practicable
Avoid crossing traffic lanes, but if obliged to do so, cross on a heading as nearly practicable at right angles to the general direction of traffic flow
68
What does "If the circumstances of the case admit" mean?
You don’t have to do it but you would want a very good reason not to
69
Why is an alteration of course preferable?
More readily apparent to vessels observing visually or RADAR
70
HOW can a bearing appreciably change when risk of collision exists?
Bearings taken of/from different part of either vessel can have different readings. You only collide at one point (i.e. sterns may clear but bows may collide)
71
Should you heading or course be at right angle to the general direction of traffic flow when crossing a TSS?
Heading
72
Is a vessel allowed to fish in a TSS?
Yes
73
What do you do in a narrow channel or fairway if a vessel does not allow you to overtake?
Slow Down
74
Why does traffic density influence your safe speed?
With more vessels you need more time to build situational awareness
75
Why can you use other methods to assess the risk of collision?
By ALL available means
76
What side of a narrow channel or fairway should you navigate?
As near to the starboard side as is safe and practicable
77
How substantial should the action by a give-way vessel be?
Substantial enough to be readily apparent to a vessel observing visually or by radar
78
What is a narrow channel?
It is not defined in the COLREGS, if you are unsure - ask the captain.
79
What kind of speed did you do on your last ship?
A safe speed
80
What do you do if you hear one prolonged blast at intervals of not more than two minutes from off your starboard bow, without having any target on radar?
Reduce her speed to the minimum at which she can be kept on her course, if necessary take all her way off, in any event navigate with extreme caution until danger of collision is over
81
What should a stand-on vessel not do in a crossing situation if they have to make an alteration?
If the circumstances of the case admit, not alter course to port for a vessel on her own port side
82
Can an overtaking vessel cross and become a crossing vessel?
No, she is not relieved of the duty of keeping clear of the overtaken vessel until she is finally past and clear
83
When May you take action as the stand on vessel?
As soon as it becomes apparent to her that the vessel required to keep out of the way is not taking appropriate action in compliance with these rules
84
Why do you stand on?
Because I have an obligation to maintain my course and speed
85
Why should the action of the give way vessel be early?
It is good seamanship
86
What do you do if you are in a head on situation with a seaplane?
Treat it like a power driven vessel
87
Where does rule 18 (Responsibilities between vessels) not apply?
In Restricted Visibility
88
What are the duties of a give way vessel?
So far as possible, take early and substantial action to keep well clear
89
Is "shall not impede" the same as "give way vessel"?
No
90
You are being over taken by a vessel NUC, what do you do?
Stand on with caution
91
What is the action required of the give way vessel?
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
92
What is your obligation as an overtaking vessel?
Keep out of the way of the vessel being overtaken
93
Can a power driven vessel and a sailing vessel meet in a head on situation?
No, only two power driven vessels
94
How do you know if you are overtaking another vessel?
Approaching from more than 22.5° abaft the beam
Approaching in the sector of the stern light
95
What do you do if you're not sure if you're overtaking?
Assume you are and act accordingly
96
When overtaking in open sea, what sound signals do you make?
Just normal port+ STBD alterations
97
Which side do you overtake on?
Whichever is clearer, with bias to starboard (to avoid trapping)
98
What vessels can get in a head on situation?
Power Driven Vessels
99
Which vessel alters in a head on situation?
Both of them
100
Is a head on situation determined using heading or course?
Heading
101
What vessels can be involved in a crossing situation?
Two Power driven vessels
102
Should you cross ahead in a crossing situation?
You should avoid crossing ahead, if the circumstances of the case admit
103
What option do you have if you are too close in a crossing situation as the give way vessel?
Full turn round to port (chicken circle)
104
What options do you have in a crossing situation?
Alter course
Alter Speed
105
What action is required of a stand-on vessel?
Keep her course and speed
106
When may the stand on vessel take action? What kind of action?
As soon as it becomes apparent that the give way vessel is not taking appropriate action in compliance with the rules. Action to avoid collision by manoeuvre alone
107
When must the stand-on vessel take action? What kind of action?
When, from any cause, the vessel required to keep her course and speed finds herself so close that collision cannot be avoided by the action of the give-way vessel alone.
Such action as will best aid to avoid collision
108
What can a CBD Vessel Do to affect a situation if risk of collision exists?
Slow Down
109
Where do the rules for restricted vis apply?
It applies to vessels not in sight of one another when navigating in or near an area of restricted visibility
110
What rules do not apply in restricted visibility?
Part B - Section 2
Sailing Vessels
Overtaking
Head-on situation
Crossing situation
Action by give way vessel
Action by stand on vessel
Responsibilities between vessels
111
What speed shall a vessel proceed at in restricted visibility?
A safe speed, adapted to the prevailing circumstances and conditions
112
Who is required to take action in restricted vis?
All Vessels
113
What rules still apply in restricted vis?
Part B - Section 1
Lookout
Action to avoid collision
Safe Speed
Narrow Channels
Risk of collision
Traffic separation Schemes
114
Can you alter to port or starboard when overtaking in restricted vis?
Either Is fine
115
If the risk of collision develops when you are being overtaken in restricted vis, do you need to alter?
Yes, Rule 13 does not apply
116
What do you need to be careful of if you hear a fog signal apparently abaft the beam?
Detecting the direction of sound is quite difficult, it could be forward of the beam
117
In restricted vis, when taking all your way off, what do you need to be careful of?
Transverse thrust (When running Astern)
Stopping distance
Losing steering control
118
When can you alter to port in restricted vis?
When overtaking
When you have a vessel on the stbd quarter
119
What does rule 19 talk about?
Restricted Visibility
120
What action will you take if you hear a previously undetected vessels sound signal forward of the beam?
Reduce speed to the minimum to be kept on her course, if necessary take all her way off. In any event navigate with extreme caution until danger of collision is passed
121
What will a power driven vessel have in restricted vis?
A power-driven vessel shall have her engines ready for immediate manoeuvre
122
Are there any stand-on vessels in restricted vis?
No
123
How do you know if you need to use restricted vis rules when addressing another vessel?
You detect her by RADAR alone
124
What is your first action when you detect a vessel by radar alone in restricted vis?
Assess the situation
125
When can you alter to port for a vessel forward of the beam, in restricted vis?
When overtaking
126
Can a power driven vessel of less than 50m show a second masthead light?
yes
127
What is the day signal for a Power driven vessel over 50 metres?
None
128
Is a vessel less than 50m in length required to show two masthead lights?
No, but they may
129
When does an NUC vessel show sidelights and a stern light?
When making way through the water
130
When does a RAM vessel show a masthead light, side lights and a stern light?
When making way through the water
131
What is the arc of visibility of a side light?
An unbroken light shown from right ahead to 2 points abaft the beam on one side
132
What is the arc of visibility of a stern light?
An unbroken light shown from 2 points abaft the beam on either side to directly astern
133
What is the arc of visibility of a masthead light?
An unbroken light from right ahead to 2 points abaft the beam on either side of the vessel
134
What colour is a masthead light?
White
135
What lights does a vessel less than 12m aground show?
none
136
When do vessels engaged in fishing show extra lights to indicate the status of their nets?
When a vessel engaged in fishing is fishing in close proximity to other vessels engaged in fishing
137
How do you describe a navigation light?
Number
Sector
Colour
Arrangement
Position
138
Why can we tell the length of a RAM Vessel?
When making way it has to show its relevant masthead lights
139
For a Vessel over 100m at anchor do they have to show deck lights?
Yes, they shall
140
What does a vessel engaged in fishing at anchor show?
Just fishing lights
141
When can the optional sailing lights not be carried?
On sailing vessel less than 20m who has a combined lantern
142
Other than the lights prescribed in the rules, what lights can be exhibited?
1. Lights that cannot be mistaken for lights in the rules
2. Lights that do not impair the visibility or distinctive character of the lights prescribed in the rules
3. lights that do not interfere with the keeping of a proper lookout
143
When should a vessels lights be on?
Sunset to sunrise
Restricted Vis
When it is deemed necessary
144
Why does a vessel engaged in fishing other than trawling not show a masthead light?
It could be confused with its light indicating it has gear extending more than 150m horizontally from the vessel
145
Where does it tell us what the colour of masthead, side, stern and towing lights are?
Rule 21 - definitions
146
What does a vessel engaged in dredging or underwater operations, when ram, show at anchor?
Just the RAM Lights/Shapes and the lights for showing where an obstruction exists
No Anchor Lights No Side/Stern Lights
147
Does a vessel aground over 100m have to show deck lights?
no
148
If you just see colour, what kind of vessel are you looking at?
Sailing Vessel
149
When does a vessel engaged in fishing show sidelights and stern lights?
When making way through the water
150
Who can a vessel under oars show the same lights as?
A Sailing Vessel
151
A vessel under sail, who is also being propelled by machinery should exhibit what?
A cone, apex down where it can best be seen
152
What could a single red or green light be?
Vessel being towed
Sailing vessel
153
What is a flashing light?
A light flashing at regular intervals at a frequency of 120 flashes or more per minute
154
What is the visible range of the lights on a partly submerged object?
3 Miles
155
When can the masthead be displaced from centre line on a vessel less than 12m in length
If the construction of the vessel does not allow for it and the sidelights are combined in one lantern which is as close to the centreline as possible
156
A Vessel is towing two vessels on her starboard side, how should it be lit?
As one vessel being towed
157
What nav lights are on an oil installation?
All round white light flashing Morse code "U" - you are running into danger
158
Which sailing vessels can carry a combined lantern?
Ones less than 20m
159
What are the coloured sailing lights ordered like?
Red over Green
160
A vessel is engaged in fishing at an anchor, what lights do you show?
Just the lights for a vessel engaged in fishing
161
Instead of the lights for a PDV what may a vessel of less than 12m show?
All-Round white light + Sidelights
162
Other than colour, how can the two types of vessel engaged in fishing be told apart by their lights?
Only the trawling one shows a mast head light
163
Which vessels can you tell if they're making way?
No Target For Radar
NUC
Trawling
Fishing
RAM
164
When does a vessel engaged in fishing show the fishing lights?
When they are engaged in fishing as per the definition, irrespective of under/making way
165
Does a vessel engaged in fishing show anchor lights?
No, just the correct fishing lights
166
What can a single white light be?
Vessel <50m at Anchor
Stern light (any size)
Vessel <7m <7kts
Masthead light of vessel (outside range of sidelights)
167
What light does a sailing vessel, less than 7m show for a light?
Same as for a sailing vessel.
An electric hand torch or lantern showing white light
168
What light should a vessel under oars exhibit?
Light for a sailing vessel
OR
An electric torch or lantern showing white light
169
Can you tow a vessel if you have no towing lights?
Yes, for a vessel in distress
You must illuminate the towline and clearly indicate the relationship between the vessels
170
What is the day shape for a tow and when is it shown?
A diamond shape where it can best be seen
When the length of the tow exceeds 200m
171
Where is the length of a tow measured?
From the stern of the towing vessel to the stern of the vessel being towed
172
What kind of lights are the lights shown to indicate a tow?
White masthead lights
173
Is a towing light above or below a stern light?
Above
174
Do you show your nav lights when drifting? Why?
Yes
Its underway, not making way
175
What is the minimum visible range of the lights on an inconspicuous, partly submerged vessel or object being towed?
White all round light: 3Miles
176
What is the minimum visible range of the lights on a vessel less than 12m in length?
Masthead Light: 2Miles
Side Light: 1 Mile
Stern Light: 2 Miles
Towing Light: 2 Miles
White,Red,Green or Yellow all round light: 2 Miles
177
What is the minimum visible range of the lights on a vessel 12m-50m in length?
Masthead Light: 5 Miles
Masthead Light on VSL less than 20m: 3 Miles
Sidelight: 2 Miles
Stern Light: 2 Miles
Towing Light: 2 Miles
White,Red,Green or Yellow All-round light: 2 Miles
178
What is the minimum visible range of the lights on a vessel 50m or more in length?
Masthead Light: 6 Miles
Side Light: 3 Miles
Stern Light: 3 Miles
Towing Light: 3 Miles
White,red,green or yellow all round light: 3 Miles
179
What is a flashing light's frequency?
120 Flashes or more a minute, flashing at regular intervals
180
What is an all round light?
A Light showing an unbroken light over an arc of the horizon of 360°
181
What sound signalling appliance does a vessel 12-20m long have?
A Whistle
182
What sound signalling appliance does a vessel 20-100m long have?
Bell + Whistle
183
What sound signalling Appliances does a vessel over 100m have?
Whistle
Bell
Gong
184
When do we make sound signals when overtaking?
In a narrow channel or fairway when overtaking can take place only if the vessel to be overtaken has to take action to permit safe passing
185
How Long is a prolonged Blast?
4-6 seconds
186
How Long is a Short Blast?
About one Second
187
What does it mean to embarrass another vessel?
To dazzle them
188
If more than one whistle is fitted on a vessel can they be sounded simultaneously?
They may be sounded simultaneously if they are less than 100m apart
189
How far away can you hear a fog signal?
Depends on the size of the vessel, but the maximum required is 2 miles
190
What sound signal should a vessel less than 12m carry?
Some means of making an efficient sound signal
191
What is your initial Action if a vessel is not giving way when required?
5 Short + Rapid blasts
192
In Restricted vis, what signal can a vessel at anchor make to give warning of her position and of the possibility of the collision to an approaching vessel?
One Short
One Prolonged
One Short
193
If a Vessel Engaged in fishing or a RAM vessel is carrying out their work at anchor, what sound signal do they make in restricted vis?
1 Prolonged
2 Short
194
What can be used to supplement sound signals? What are its Details?
A Light
All round white light
Range 5 miles
same as the corresponding sound signal
Interval between signals, at least 10 seconds
195
Why do you make 5 short and rapid blasts?
When vessels in sight of one another are approaching each other and from any cause either vessel fails 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
196
Who makes a sound signal to indicate a manoeuvre?
When vessels are in sight of one another, a power driven vessel underway, when manoeuvring as authorised or required by the rules
197
What do you do if you do not agree to being overtaken in a narrow channel or fairway?
Nothing
198
What sound signal will a CBD vessel sound at anchor in restricted visibility?
The sound for a vessel of that length at anchor
199
What signal does a vessel engaged in fishing make at anchor in restricted vis?
If she is engaged in fishing, one prolonged two short at intervals not exceeding 2 minutes
200
When would a power driven vessel change her fog signal from one prolonged blast to two prolonged blasts, not less than every 2 minutes?
When she stops and makes no way through the water (Not when the engines are stopped)
201
What does the term whistle mean?
Any sound signalling appliance capable of producing sounds as per annex 3 of the colregs
202
How should a partly submerged object whose breadth is less than 25m be lit?
One All-round white light at or near the forward end + The after end
203
How should a partly submerged object whose breadth is greater than 25m Be lit?
One All round white light at or near the forward end + after end of the object
Two additional all-round white lights at or near the extremities of the breadth
204
A Vessel is towing a Partly submerged object longer than 100m and wider than 25m, how should it be lit?
An all round white light at or near the forward + aft end of the object
Two white lights at the extremities of her breadth
Additional Lights so the distance between any light does not exceed 100m
205
What sailing vessels are allowed to have a combined lantern?
Sailing vessel of less than 20m in length
206
Where a tow exceeds 200m, what shapes should be exhibited?
A diamond on the vessel towing and the vessel being towed
207
What is a signal to attract attention?
Any light or sound signal that cannot be mistaken for any other signal in the rules
Or a searchlight in the direction of danger
Not like any aid to navigation
No high intensity intermittent or revolving lights
208
In clear weather at anchor, can you use Morse code "R" signal to warn an approaching vessel of danger of collision?
No, For restricted vis only, use 5 Short + rapid
209
What vessels when at anchor sound one prolonged, two short in restricted vis?
Vessels engaged in fishing
Vessels restricted in ability to manoeuvre
210
How many annexes are there in the colregs?
Four
211
What size should the bell be and where can you find this information?
Mouth over 300mm for vessels over 20m with a striker not less than 3% the mass of the bell, - Found COLREGS Annex 3
212
What is the minimum distance that the Christmas tree is from the fore and aft centreline athwartships?
Horizontal distance of not less than 2m
213
What is the minimum audible range of a whistle on a vessel less than 20m?
0.5 Miles
214
What size should a diamond shape be?
Size of two cones, each with a base diameter of not less than 0.6m and a height equal to its diameter
215
What is the size of a ball?
Diameter of at least 0.6m
216
What are the requirements for horizontal spacing of masthead lights on vessels over 50m's?
Horizontal difference not less than half LOA, but need not be more than 100m.
Forward masthead not more than quarter length of vessel from stem
217
What is the requirements for two or three lights carried in a vertical line?
Equally Spaced Not less than 2 metres apart Other than towing light, not less than 4m above the hull
218
What is the height above the hull?
Height above the uppermost continuous deck, measured from the position vertically beneath the location of the light
219
On a power driven vessel of more than 20m what is the requirements for positioning of masthead lights?
Forward Masthead - Height above hull of not less than 6m, when breadth above 6m, then height above hull not less than breadth, but no more than 12 metres
Aft - At least 4.5m higher than the forward one
220
When two masthead lights are carried on board what are the requirements for spacing/visibility?
Aft - one at least 4.5m above the forward one
In all normal conditions at a distance of 1000m from the stem, the aft will be seen over and separate from the FWD light
221
What are the positioning Requirements for sidelights?
Height above the hull not more than 3/4 height of forward masthead light
Not so low as to be interfered with by deck lights
Not ahead of the forward masthead lights
At or near the side of the vessel
222
What is the minimum audible range of a whistle on a vessel of 75m - 200m?
1.5 Miles
223
What is the vertical distance between shapes?
At least 1.5 metres
224
What is the minimum size of the shape which indicates a vessel constrained by draught?
A cylinder shall have a diameter of at least 0.6 metres and a height equal to twice its diameter
225
What is the minimum audible range of the whistle on a vessel of 20m - 75m?
1 Mile
226
What are the spacing + visibility requirements for the additional lights for vessels fishing in close proximity to other vessels?
0.9m apart at a level below the normal lights
Visible all around the horizon at a distance of one mile at least
227
What are the requirements for a manoeuvring light?
On the same fore and aft line as the masthead lights
At least 2m above FWD masthead light
Not less than 2m above/below aft masthead light
228
What is the minimum audible range of the whistle on a vessel of 200m+?
2 Miles
229
What size is a cone?
A Base diameter of not less than 0.6m and a height equal to its base
230
If you have a CBD vessel on your port side, with ROC, can you alter to port and thake their stern? Why?
No,
CBD is not given any special protections, it is just a PDV, treat as normal
231
What side do you pass a vessel aground? How do you identify this side for vessel >50m?
Pass their stern (assumes they ran ahead into the ground)
It is the side with the lower all round white light
232
What is an example of gear that could be extending more than 150m from a vessel engaged in fishing other than trawling?
Long line for tuna (can run for miles)
233
Must a partly submerged object being towed always be lit? Why? What if it can't be lit per the rules?
Yes,
Rule says ""shall exhibit""
All possible measures shall be taken to light the object or at least indicate its presence
234
Can a flag state issue a dispensation to a vessel for the requirements of the colregs?
Yes - number character of lights etc
CMM
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