irpcs_colregs_test_online pdf

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© 2010 WWW.SKYSAILTRAINING.CO.UK Collision Regulations IRPCS
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International Regulations for
Preventing Collisions at Sea
IRPCS - Colregs Assessment
Collision Regulations Exam
Test yourself – online quiz
RYA Day Skipper and Yachtmaster
ICC / BSAC Seamanship
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CEVNI and Navigation skills charts.
8
th
May 2010

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SKYSAIL SKILLS CHARTS
/>Day Skipper
ChartworkWeather

VHF
Extracts from Skysail Skills Charts on the essential
navigation subjects

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Day Skipper Colregs Quiz
The full text of IRPCS is here:
/>Before the detailed Yachtmaster Collision
Regs questions, there is a short section on
what you need to know for the RYA Day
Skipper course.

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Day Skipper – Colregs 1
Basic Rules

The rules apply anywhere on the sea or connected to it (subject to local
by-laws).

Keep a good lookout at all times by all means available (sight, sound,
radar).


Maintain a safe speed for the conditions:
waves, hazards, tide, traffic, visibility, depth, manoeuvrability,
background lights

The words 'Right of Way' do not occur in the rules.
A ‘Stand on' vessel should maintain its course and speed until it is
clear that the ‘Give way' vessel is not taking avoiding action.
Then all vessels must keep clear.

Action taken to avoid a collision shall be positive, early and safe.

A risk of collision exists if a bearing by compass, radar or transit stays
constant.

Navigate on the starboard side of a channel.

When crossing a shipping lane or traffic separation scheme, keep your
heading at right angles to the traffic.

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Day Skipper – Colregs 1
Special rules apply in fog:
There is no ‘Give Way’ vessel, everyone must keep
clear.
If you hear any vessel ahead:


sound your signal

slow down but keep steerage way on

stop if necessary

navigate with extreme caution till danger is past.

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Day Skipper - Colregs 2

General Rules for Priority:
1. Not Under Command
2. Restricted Ability to Manoeuvre
3. Constrained by Draught
4. Fishing
5. Sail
6. Motor (including motor sailing) Tugs
are treated as motor vessels, unless
they are also RAM or CBD
Exceptions to General Rules:
Narrow channels
Traffic Separation Schemes.

Overtaking boats keep clear - sail and
power.


Sailing Rules
1. Starboard tack boat
2. Port tack boat
Sailing boats on the same tack:
Windward boat keeps clear.

Motoring Rules
Boats meeting head on - both turn
to starboard.
If two power vessels are crossing,
the boat which has the other on
her own starboard side shall keep
out of the way.

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Day Skipper Colregs Quiz 3
What is the meaning
of this day shape?
Vessel at anchor
Keep a good lookout at
all times by all possible
means
What are the rules
concerning lookout?
Do the words ‘Right of

Way’ appear in the
Rules?
What is the meaning
of this flag ?
Diver down
Keep well clear at slow speed
No

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Day Skipper Collision Regulations
Sailing vessel
Motor sailing
What is the meaning
of this sign?
What is the meaning
of this sign?
Vessel fishing
Head on:
Turn to Starboard
Keep to Starboard side of
channel
Converging:
Boat on right stands on
B goes behind, slows
down or stops
Two motor boats meet

head on, what action is
required?
Two motor boats
converge
B
A

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Day Skipper Colregs 4
What action should each vessel take?
Windward
boat B
gives way
Port tack boat A
gives way
One boat
overtakes
another
Two sailing boats
on same tack
Two sailing boats
on opposite tack
Wind
A
B
B

Wind
A
Overtaking Boat keeps clear

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Day Skipper Colregs 5
give type of vessel, size and aspect
What vessel carries
these lights?
Motor vessel
What vessel carries
this light?
Sailing
Port side
What vessel carries
this light?
•
Stern light - any vessel
•
Vessel at anchor
•
Small craft
Over 50m long
From ahead
What vessel carries this light?
Under 50m long

Motor vessel
Starboard side

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Yachtmaster Assessments
The RYA assessment requires that you
achieve 80% in the Collision Regulations
assessment.
You need to know all that follows in this test

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Application - IRPCS Rule 1
Do the Collision Regulations apply on Lake
Geneva?
No. This is not the high seas, or navigable
water connected with the high seas

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Responsibility – IRPCS Rule 2
Do the words ‘right of way’ appear in the
collision regulations?
No.
It is everyone’s responsibility to avoid a
collision, there is no exoneration.
There are ‘give way’ vessels and ‘stand on’
vessels.

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General Definitions - Rule 3
Does a sailing yacht which is motor-sailing
count as a sailing vessel or a power-driven
vessel?
What is the definition of “under way”?
A power-driven vessel, it is being propelled by machinery
Underway: not anchored, or made fast to the shore, or
aground.
Vessels ‘making way’ are moving through the water by
power, sail or oars, but this is not defined in the IRPCS.

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Look-out - IRPCS Rule 5
What do the colregs say about the
maintenance of a look-out?
May this rule be relaxed by single
handed sailors?
At all times, by all available means,
including sight, sound, and radar if available.
No

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Safe Speed – IRPCS Rule 6
What is a safe speed?
At a safe speed a vessel can take proper and
effective action to avoid collision, and be stopped
within a distance appropriate to the prevailing
circumstances and conditions.
Consider:
1. Stopping and turning ability of your vessel
2. Visibility
3. Draught of your vessel and Depth of water
4. Weather
5. Sea State
6. Traffic
7. Hazards
8. Background lights at night

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Risk of Collision - Rule 7
How do you determine that a risk of
collision exists?
Take bearings of an approaching vessel.
If the bearings stay constant and the distance is
closing there is a risk of collision.

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Action to avoid Collision - Rule 8
What are the rules about action to
avoid a collision?
Your action should obvious to another vessel.
Your action should be safe
Action should be early, in ample time.
At night, show another aspect of your lights.
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Narrow Channels - Rule 9
What are the rules for any sailing
vessel, and vessels less than 20m in
length, in narrow channels?
They must not impede the passage of a
vessel which can navigate safely only in the
channel.

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Traffic Separation Schemes –
Colregs Rule 10
When you cross a Traffic Separation
Scheme, do you make Heading or Ground
Track at right angles to the lane?
Your heading should be as
nearly as practicable at right
angles to the traffic flow.
This is the quickest route and shows
the maximum aspect of your boat to
vessels using the lane.
Also you have the best view of traffic.
Tide
Ground
track

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Sailing Vessels – IRPCS Rule 12
When two sailing vessels on opposite tacks
meet, which gives way to the other:
The vessel with the wind on the port side
(on port tack)
Port tack boat A gives way
Wind
A
B

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Sailing Vessels – IRPCS Rule 12
When two sailing vessels on the same tack
meet which gives way to the other:
The vessel to windward of the other
Windward boat B
gives way
B
Wind
A

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Sailing Vessels – Colregs Rule 12
A sailing vessel on port tack sees
another sailing vessel ahead to
windward but is not certain whether
the other vessel is on port or
starboard tack.
Does she: stand on or give way?
She gives way

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Overtaking – Colregs Rule 13
When is a vessel overtaking?
A planing sailing dinghy is overtaking a
motor cruiser.
Which keeps clear?
Any overtaking vessel must keep clear
When it is approaching from an angle
more than 22.5º abaft the beam of
another vessel
(ie in the arc of the stern light).
22.5º

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Overtaking - IRPCS Rule 13
Assume you are overtaking and act accordingly.
Any subsequent alteration of the bearing between the two
vessels shall not make the overtaking vessel a crossing vessel
within the meaning of these Rules, or relieve her of the duty
of keeping clear of the overtaken vessel until she is finally
past and clear.
What should you do if you are not sure you are
overtaking?
What happens if you change your course or speed
to come out of the overtaking sector?