COLREG "Vessel "A"is overtaking vessel "B" on open waters and
will pass without changing course. Vessel "A" _____________.
"Vessel" "A" is overtaking vessel" "B" on open waters as shown, and
will pass without changing course. Vessel "A" _____________.
"Vessel" "A" is overtaking vessel" "B"on open waters and will pass
without changing course. Vessel "A" should_____________. "Which
statement applies to a vessel""constrained by her draft?"
URL
Raspuns1
a Raspuns2
b Raspuns3 0 will not sound any whistle signals 0 should sound
the danger signal 0 not sound any whistle signal 0 "She is
designated as a "vessel restricted in her ability to maneuver".
c 1
Raspuns4 d
should sound two 0 should sound short blasts the danger signal
need not sound any whistle signals sound two prolonged blasts
followed by two short blasts She is severely restricted in her
ability to change her course because of her draft in relation to
the available depth of water. A vessel servicing an aid to
navigation She must be a power-driven vessel The term only applies
to vessels in narrow channels 1 should sound two short blasts 0
sound the danger signal
0
1
1 The term applies only to vessels in marked channels.
0
"Which vessel is NOT regarded as being" "restricted in her
ability to maneuver?" .Which statement is true concerning a vessel
constrained by her draft? Which statement applies to a vessel
constrained by her draft?
0 A vessel engaged in dredging 1 She is not under command
0 A vessel constrained by her draft 0 She may be a vessel being
towed
1
0
0 She is severely 1 She is restricted in designated as her
ability to a vessel change her restricted in course her ability to
because of her maneuver draft in relation to the available depth
and width of navigable water 0 She is unable to maneuver due to
some exceptional circumstance 0 A vessel constrained by her draft 0
She must be a powerdriven vessel
0
Which statement is TRUE concerning a vessel constrained by her
draft?
She is hampered because of her work
1
Which vessel is NOT restricted in her ability to maneuver?
A vessel servicing an aid to navigation
1 A towing vessel with tow, unable to deviate from its course 0
two masthead lights in a vertical line 1 two towing lights in a
vertical line
0
A 20-meter power-driven vessel pushing ahead or towing alongside
will display _____________. A 20-meter power-driven vessel pushing
ahead or towing alongside will display _____________.
two towing lights in a vertical line a single white light
forward
0 a towing light above the sternlight 0 two masthead lights in a
vertical line
1
0
A fishing vessel is approaching a vessel not under command.
Which statement is TRUE?
the fishing vessel must keep clear of the vessel not under
command.
1 If the vessel not under command is a power-driven vessel, she
must keep clear of the fishing vessel. 0 Ahead.
0 They must exchange whistle signals.
0
A fishing vessel is showing a basket and a single cone apex
upwards? In which direction do the nets lie? A light used to signal
passing intentions must be an _____________. A light used to signal
passing intentions must be an ______________ A light used to signal
passing intentions must be an ________________ A partially
submerged object towed by a vessel must show during the day one
_____________.
Astern.
0 From the basket towards the cone. 0 all-round white light only
1 all-round blue light only 0 all-round white light only 0 black
ball
1 From the cone towards the basket. 1
0
alternating red and yellow light all-round yellow light only
all-round white or yellow light diamond shape when the length of
the tow is 200 meters or less
0 alternating white and yellow light 0 all-round white light
only 0 all-round yellow light only 1 diamond shape when the length
of the tow exceeds 200 meters in length 0 Not less than 4.5
metres.
0 1
0
A power driven vessel engaged in towing is displaying the
required lights on her aftermast. How much higher must the lowest
after masthead light be above the forward masthead A power driven
vessel observes the stern light of another powerdriven vessel on a
steady bearing and reducing range on the port bow. Which vessel
must give way? A power-driven vessel leaving a quay or wharf must
sound what signal? A power-driven vessel pushing ahead or towing
alongside displays navigation lights and _________________ A
power-driven vessel pushing ahead or towing alongside will show
sidelights, a sternlight, and _________________ A sailing vessel is
overtaking a power-driven vessel in a narrow channel, so as to pass
on the power-driven vessel`s port side. The overtaken vessel will
have to more to facilitate passage. The sailing vessel is the
_____________. A signal of intent must be sounded in international
waters by _____________
Not less than 4 metres.
1 Not less than 2 metres.
0 Not less than 1.5 metres.
0
The observing vessel
1 The observed vessel
0 No risk of collision exists
0 Both masters decide
0
Three short blasts two all-round red lights in a vertical line
an all-round red light where it can best be seen stand-on vessel
and would sound two short blasts
0 A long blast 0 two yellow towing lights in a vertical line 0
two yellow masthead lights in a vertical line 0 give-way vessel and
would sound no whistle signal
0 No signal is required. 0 two white masthead lights in a
vertical line 0 two masthead lights in a vertical line 0 give-way
vessel and would sound two prolonged blasts followed by two short
blasts 1 a vessel crossing the course of another
1 1
1
1
a vessel meeting another head-on
0 a vessel overtaking another in a narrow channel
0
A signal of one prolonged, one short, one prolonged, and one
short blast, in that order is given by a vessel _____________. A
single vessel being towed alongside shall exhibit ________________
A single vessel being towed alongside shall show ________________ A
towing light _____________.
engaged on pilotage duty
0 in distress
0 being overtaken in a narrow channel 0 sidelights and a stern
light
1
one all-round white light
0 sidelights, stern light and a special flashing light 0
sidelights and a stern light
1
one all-round white light
1 only the outboard sidelight and a stern light 1 shows an
unbroken light over an arc of the horizon of not less than 180 grd
nor more than 225 grd 0 a yellow light having the same
characteristic s as the stern light 0 shown in addition to the
sternlight 0 three allround blue lights
0
flashes at regular intervals of 50-70 flashes per minute
0 is yellow in color
0
A towing light is _____________.
shown below the sternlight
0 white in color
1
A towing light is __________________. A vessel constrained by
her draft may display _____________. A vessel constrained by her
draft may display________________.
shown at the bow 0 white in color
1
three all-round red lights three all-round red lights instead of
the lights required for a power-driven vessel of her class
1 two 225 grd red lights
0
0 the same lights 0 three allas a vessel round red restricted in
lights in her ability to addition to maneuver the lights required
for a power-driven vessel of her class 0 not under command 0
aground 0 Not less than 4.5 metres. 0 constrained by her draft 0
constrained by her draft 1 Not less than 4 metres.
1
A vessel displaying three red lights in a vertical line is
_________________ A vessel displaying three red lights in a
vertical line is _________________. A vessel is at anchor and
displaying two anchor lights. What is the minimum vertical distance
between the forward anchor light and the after anchor A vessel
joining the general direction of traffic flow in a traffic
separation scheme from either side shall do so......
restricted in her ability to maneuver not under command At least
1.5 metres.
1
1 0 Not less than 2 metres. 0 on a heading as nearly as
practicable at right angles. 1 0
at as small an angle as practicable.
1 avoiding traffic using the scheme.
0 making a course as nearly as practicable at right angles.
0
A vessel not under command sounds the same fog signal as a
vessel _____________.
engaged in towing
0 constrained by her draft
0 All of the above
A vessel not under command sounds the same fog signal as a
vessel___________. A vessel not using the traffic separation scheme
shall......
towing
0 constrained by her draft 0 if practicable only use the inshore
traffic zone.
0 All of the above 0 not impede the passage of any vessel
following a traffic flow.
1
only use it to avoid immediate danger.
0 avoid it by as wide a margin as possible. 1 making good a
course as nearly as practicable at right angles. 1
1
A vessel shall, so far as is practicable, avoid crossing traffic
separation lanes. But if obliged to do so shall cross the general
direction of traffic flow .....
at as small an angle as practicable.
0 avoiding other 0 on a heading traffic using the as nearly as
scheme. practicable at right angles.
0
A vessel sounds one short blast. This signal indicates the
vessel _____________, A vessel sounds two short blasts. This signal
indicates the vessel _____________. A vessel using a traffic
separation scheme shall so far as practicable....
intendes to alter course to starboard intends to alter course to
port keep to the starboard side of the lane.
0 intends to pass 0 is altering starboard to course to starboard
starboard 0 intends to pass 0 is altering starboard to course to
port starboard 0 avoid vessels crossing the scheme. 0 keep clear of
the traffic separation line or separation zone.
1
1 avoid impeding the safe passage of other vessels following the
lane.
0
A vessel which can only safely navigate within a narrow channel
or fairway shall not be impeded by......
sailing vessels, fishing vessels, or vessels of less than 20
metres.
0 crossing vessels.
0 sailing vessels or vessels of less than 20 metres.
0 sailing 1 vessels, fishing vessels, vessels less than 20m. or
crossing vessels. 0
A vessel which detects by radar alone the presence of another
vessel shall determine if a closequarters situation is developing
and/or risk of collision exists. If so, she shall take avoiding
action in ample time; however, if such action consists of an a A
vessel which detects by radar alone the presence of another vessel
shall determine if a closequarters situation is developing and/or
risk of collision exists. If so, she shall take avoiding actions in
ample time; however, if such action consists of an
An alteration of course to starboard for a vessel forward of the
beam, other than for a vessel being overtaken. An alteration of
course in the opposite direction of a vessel abeam or abaft the
beam.
0 An alteration of 1 An 180 course to port degrees for a vessel
alteration forward of the (reciprocal) to beam, other avoid risk of
than for a collision. vessel being overtaken. 0 A 90 degrees
alteration of course in the opposite direction of the signal in
order to be deemed as being overtaken. 0 An alteration of course
towards a vessel or abaft the beam.
1
A vessel's sidelights should be positioned above the hull, but
according to the Collision Regulations what is the maximum height
they can be placed? A whistle signal of one prolonged,one short,one
prolonged and one short blast,is sounded by a vessel _____________.
Are the vessels restricted in their ability to manoeuvre when
engaged in an operation for the laying, servicing or picking up of
a submarine cable exempted from complying with provisions of the
rule regarding navigation in traffic separation schemes ? At night
you notice, in addition to other lights, two yellow lights in a
vertical line which flash alternately every second. What does this
indicate?
Half the height of the forward masthead light
0 Three-quarters the height of the forward masthead light
1 Any height below the forward masthead light
0 One quarter 0 the height of the forward masthead light 1
at anchor
0 towing a submerged object
0 being overtaken in a narrow channel
They are not exempted from complying with this rule.
A fishing vessel hampered by her purse seine gear..
0 They are 1 They are exempted from exempted complying with from
this rule to the complying extend with this rule necessary to if
they are carry out the giving operation. warning signals. 1 A
dredger 0 A towing showing the vessel's light side on which seen
from a vessel can abaft the pass. beam.
0
0 An air 0 cushion vehicle operating in the nondisplaceme nt
mode. 1
At night, a power-driven vessel less than 7 meters in length,
with a maximum speed which does not exceed 7 knots, may show when
underway _____________, At night, a power-driven vessel less than 7
meters in length, with a maximum speed which does not exceed 7
knots, MUST show when underway at least _____________. At night, a
power-driven vessel underway of less than 7 meters in length where
its maximum speed does not exceed 7 knots may show, as a minimum,
______________. At night, in addition to her sidelights, what else
must a sailing vessel show?
sidelights combined in a single latern
0 an all-round flashing yellow light
0 one all-round white light
one white 360 light
1 a white light on 0 sidelights and the near a sternlight
approach of another vessel 0 the lights required for a vessel more
than 7 meters in length 0 Red over green masthead lights. 0 one
all-round white light
0
sidelights and a sternlight
1
A white light.
0 A stern light.
1 A white light in the direction of an approachin g vessel.
0
At night, you are power-driven q451.bm Both are equally vessel
'A' approaching powerp responsible for driven vessel 'B' as shown.
keeping clear. Occasionally you see both white masthead lights and
the green side light of vessel 'B'. Which of the following is
true?
0 This is a case of special circumstances and I would contact
'B'.
0 Vessel 'B' must keep clear of you ( vessel 'A' ).
0 I ( vessel 'A' 1 ) must keep clear of vessel 'B'.
At range 2 miles and steady rrpdv_6. Make a bearing, you sounded
5 short bmp substantial blasts: it is apparent that the reduction
of other vessel is not taking speed. appropriate action. What
should you do? At sea during the day, you see a vessel displaying
two black cones with their points together. What does this
indicate? A vessel engaged in fishing
0 Sound one short blast and alter to starboard.
1 Sound five short and rapid blasts again and stand on with
caution..
0 Sound two short and rapid blasts and stand on with caution. 0
A vessel aground
0
At sea you sight a tug displaying q432.bm Keep well clear this
signal. What should you do? p as she is towing a dracone.
1 A vessel 0 A vessel of engaged in a less than 50 towing metres
in operation length at which is anchor unable to deviate from her
course 0 Keep well clear 0 Give as the tug is assistance as
restricted in the tug is in her ability to distress. manoeuvre.
0
1 Keep well 0 clear as she is escorting a submersible
vessel.
At what height above the hull should the forward anchor light be
placed on a vessel of 50 metres or more in length?
20 metres.
0 5 metres.
0 6 metres.
1 So it can be 0 seen at 1000 metres from the stern at sea
level. 0 0 0 9 metres. 1
At what interval shall successive light signals be given ? At
what intervals is the "gun or other explosive signal" fired ? At
what minimum height above the hull should the mastlight on a power
driven vessel of length 60 metres and beam 9 m be carried? At what
speed shall a vessel navigate in conditions of restricted
visibility ?
At not less that 10 seconds. At about one minute. 20 metres.
1 After at least one minute. 1 At about 5 minutes. 0 6
metres.
0 Whenever it is necessary. 0 At about 15 minutes. 0 5
metres.
At slow speed and look-out forward.
0 At economic 0 At a safe speed but with speed radar working
adapted to and a proper the prevailing look-out in circumstance
order to avoid s and risk of collision. conditions of restricted
visibility. 1 fishing. 0 underway and making way through the
water.
1
Does this signal indicate that the q436.bm at anchor. vessel
is...... p
0 underway, but stopped.
0
Except where it has been determined that a risk of collision
does not exist, point out how a vessel shall conduct, which hears
apparently forward of her beam the fog signal of another vessel, or
which cannot avoid a closequarters situation with another v
She shall reduce her speed to the minimum at which she can be
kept on her course. She shall, if necessary, take all her way off
and in any event navigate with extreme caution untill danger of
collision is over. Not less than 6 metres
1 She shall keep 0 She shall at the same navigate at speed, but
with economic the engine on speed and stand-by for proper
lookmanoeuvre in out, radar order to avoid working and risk of
collision the engines on stand-by ready for manoeuvre.
0
For a power driven vessel less than 30 metres in length and 5
metres beam, at what height above the hull should the mastlight be
carried? For a power driven vessel of 110 metres in length and
20metres beam, what is the maximum height above the hull that the
forward masthead light can be carried? For which types of vessel
should a fishing vessel not impede the passage in a narrow channel
or fairway?
1 Not less than 12 metres
0 Not less than 20 metres
0 Not less than 9 metres 1 9 metres
0
5 metres
0 6 metres
0 12 metres
0
Vessels greater than 20m. in length.
0 A vessel which can safely navigate only within such a
channel.
0 Sailing vessels and vessels greater than 20m. in length.
0 Any other vessels navigating within the narrow channel or
fairway. 0
1
How do COLREG rules interfere with the lights and signals for
ships of war, vessels proceeding in convoy and fishing vessels
engaged in fishing as a fleet ?
The Government 1 The of any state may Government of issue
special any state may rules with respect authorize any to the
number of lights or station lights or signals. signal lights but
these shall, so far as possible, be such that they cannot be
mistaken for the lights or signals authorized under COLREG rules.
Nothing in COLREG rules shall interfere with the operation of
special rules, made by an appropriate authority, but such special
rules shall conform as closely as possible to COLREG rules. 1 The
appropriate authority is not obliged to take into account COLREG
rules.
0 COLREG rules shall be complied with as closely as
possible.
How do COLREG rules interfere with the special rules for
roadsteads, harbours, rivers, lakes or inland waterways navigable
by seagoing vessels ?
0 The COLREG rules shall apply in all circumstance s.
0
How shall 2 power-driven vessels manoeuvre, when navigating on
reciprocal or nearly reciprocal courses, so as to involve risk of
collision ?
Each shall alter 0 They shall give 0 Each shall courses to port
in the regular alter her order to pass at a signals, alter course
to safe distance. course to starboard so starboard or that each
port, according shall pass on to the the port side circumstances.
of the other. The vessel which has the wind on the port side shall
keep out of the way of the other. The vessel which sees the other
on port side shall keep out of the way of the other. 1 The vessel
which has the wind on the starboard side shall keep out of the way
of the other. 0 The vessel which has the wind from astern shall
keep out of the way of the other.
1
How shall 2 sailing vessels manoeuvre when they are approaching
one another, so as to involve risk of collision and each has the
wind on a different side ? How shall 2 sailing vessels manoeuvre,
when they are approaching one another so as to involve risk of
collision and both have the wind on the same side
0
0 The vessel 1 The vessel which is to which sees windward shall
the other on keep out of the starboard way of the side shall vessel
which is keep out of to leeward. the way of the other. 0 At
economic speed, but with a proper look-out.
0
How shall a power-driven vessel navigate in conditions of
restricted visibility ?
At a safe speed and her engines ready for immediate
manoeuvre.
How shall a proper look-out be maintained aboard ?
1 At slow speed but the telegraph on "stand-by" in order to be
able to manoeuvre in ample time. Every vessel 1 Every vessel shall
at all times shall at all maintain a proper times maintain look-out
by sight a look-out by and hearing as sight to avoid well as by all
any dangerous available means situation. appropriate in the
prevailing circumstances and conditions so as to make a full
appraisal of the situation and of risk of collision. At a small
angle to the general direction of traffic flow and at small speed.
0 At as small an angle to the general direction of traffic flow as
practicable at full speed.
0
0 When the visibility is restricted, a proper lookout shall be
maintained in order to make a full appraisal of any risk of
collision.
0
How shall a vessel cross the traffic lanes when is obliged to do
so ?
0 As nearly as practicable at right angles to the direction of
traffic flow.
1
How shall a vessel engaged in fishing conduct in a narrow
channel or fairway ?
The vessel shall not impede the passage of any other vessel
navigating within a narrow channel or fairway.
1 They shall 0 As a fishing only in privileged the centre of
vessel which the narrow must be channel not to avoided. impede the
passage in both directions.
0
How shall a vessel join or leave a traffic separation scheme
?
At right angles to the general direction of the traffic
flow.
0 Normally join 1 Through the or leave traffic traffic lane at
the separation termination of zone but with the lane, but, the
approuval when joining or of the leaving from authorities either
side surveying shall do so at navigation in as small angle the
traffic to the general separation direction of scheme. traffic flow
as possible. 0 As close to the centre of the fairway as possible. 0
The vessel shall not impede the passage of a vessel which can
safely navigate only within a narrow fairway or channel. 1 She
shall give the regular signals and after being enlightened, act
according to the circumstance s. 1 The vessel shall keep as near to
the outer limit of the channel or fairway as possible, to provide a
proper lookout. 0 The vessel shall do so with particular
caution.
0
How shall a vessel less than 20 m in length or a sailing vessel
proceed along a narrow fairway ?
As all the other vessels.
1
How shall a vessel manoeuvre in doubt as to whether she is
overtaking another ?
She shall consider herself a privileged vessel and shall
maintain her course and speed.
0 She shall assume that this is the case and act
accordingly.
0
How shall a vessel navigate along a narrow channel or fairway
?
In the centre of the channel or fairway.
0 As near to the outer limit of the channel or fairway which
lies on her starboard side as is safe and practicable.
0
How shall a vessel navigate in areas near the terminations of
traffic separation schemes?
The vessel shall navigate in the general direction of traffic
flow.
0 The intentions of altering course will be communicated by
sound and visual signals.
1
How shall a vessel navigate within a traffic separation scheme
?
The vessel shall 0 The vessel navigate as close shall navigate
as possible to the in the traffic traffic separation lane in the
schemes. indicated direction.
0 The vessel shall navigate in the appropriate traffic lane in
the general direction of traffic flow for that lane and, so far as
practicable, keep clear of a traffic separation line or separation
zone.
1
How shall a vessel overtaking any other conduct ?
The vessel overtaking any other will have priority.
0 The overtaken vessel shall manoeuvre such as to allow the
overtaking vessel to overtake.
0 Any vessel overtaking any other shall keep out of the way of
the vessel being overtaken. 1 Positively, with speed alterations to
avoid risk of collision.
1
How shall an action to avoid collision be taken ?
In ample time, 0 Positively, in with a ample time succession of
and with due small alterations regard to the of course in order
observance of not to deviate good from the vessel's seamanship.
course. The radar equipment shall be used when the visibility is
restricted, using adequate range scales. 0 The radar equipment
shall be used to avoid risk of collision.
0
How shall radar equipment be used if fitted aboard ?
0 Proper use shall be made of radar equipment, including
long-range scanning to obtain early warning of risk of collision
and radar plotting or equivalent systematic observation of detected
objects.
1
How shall the alternations of course and/or speed be made to
avoid collision ?
Small alterations of course and/or speed not to deviate too much
from vessel's course.
0 Large enough alterations of speed and small alterations of
course, not to deviate too much from vessel's course.
0 If the circumstance s admit, they shall be large enough to be
readily apparent to anoter vessel observing visually or by radar. 0
One at the foremasthead and one at each end of the fore yard. 1
Distress signals are used only together in order to be noticed
quickly. 0 One at the foremast head, the other two at the stern
masthead.
1
How shall the balls of vessels engaged in mineclearance
operations be exhibited ?
In a vertical line.
0 One at the foremasthead and 2 at the sternmasthead . 0
Distress signals are used either together or separately at short
intervals of about one minute. 1 In a vertical line.
1
How shall the distress signals be used ?
Distress signals are used separately at short intervals.
0
How shall the green lights of vessels engaged in mineclearance
operations be exhibited ?
One of these lights shall be exhibited near the foremast head
and one at each end of the fore yard. They shall conduct as any
other vessel and shall comply with the COLREG rules. They shall use
the inshore traffic zones.
0
How shall vessels engaged in fishing conduct in a traffic
separation scheme ?
0 They shall 0 They shall not navigate in any impede the
direction for passage of fishing any vessel purposes. following a
traffic lane. 0 They shall avoid it by as wide a margin as is
practicable. 1 They shall navigate in the proximity of, but shall
not cross the separation line. 0 On a HEADING as nearly as
practical at right angles to the direction of traffic flow
1
How shall vessels not using a traffic separation scheme navigate
?
0
How should a vessel cross a traffic separation lane?
At a speed and heading that will cause the least encounters with
vessels within the lane
0 On a heading that will cause her to spend the LEAST TIME in
the lane
1 On heading 0 so that her TRACK will be as nearly as
practicable at right angles to the direction of traffic flow
If a vessel displays theree allround red lights in a vertical
line at night, during the day she may show________________. If a
vessel is being towed alongside on the starboard side of the towing
vessel, what lights should it show? If a vessel of length 20metres
or more is required by the rules to carry two or three lights in a
vertical line, at what height above the hull (except where a towing
light is required) must the lowest of these be placed? If
alteration of course alone is sufficient to avoid collision, how
shall it be done ?
three balls in a vertical line
0 a cylinder
1 two diamonds in a vertical line 1 Sidelights only. 0 Not less
than 4.5 metres
0
Starboard sidelight and sternlight. Not less than 4 metres
0 Sidelights and sternlight. 1 So it can be seen at a distance
of 1000m
0 Starboard sidelight only. 0 At least 1.5 metres
0
0
The manoeuvre shall be made in good time, be substantial and it
does not result another closequarts situation. Alter course.
1 Large 0 An alternation alterations of of course, course shall
be sufficient to made, avoid any risk sufficient to of collision.
avoid collision. 0 Sound 5 short and rapid blasts on the whistle. 0
three black balls in a vertical line 1 Both of them. 1 Call it up
on VHF.
0
If another ship does not appear to be taking sufficient action
to avoid a collision, what should you do according to the Collision
Regulations? If at night a vessel displays three all-round red
lights in a vertical line, during the day she may show
________________ If whistles are fitted on the vessel at a distance
apart of more than 100 metres, which of them shall be used for
giving manoeuvring and warning signals ?
0 Stand On.
0
two cones,base to base
0 a cylinder
1
One of them.
0 Only the whistle forward for warning and only the whistle aft
for manoeuvring.
0
If you hear a fog signal forward of the beam, Rule 19 states
that you must...... If you sighted three red lights in a vertical
line on another vessel at night,it would be a vessel _____________.
In a crossing situation on international waters, a short blast by
the give-way vessel indicates that the vessel _____________. In a
narrow channel, a signal of intent which must be answered by the
other vessel, is sounded by a vessel _______________. In a narrow
channel, a vessel trying to overtake another on the other vessel`s
port side, would sound a whistle signal of_____________. In a
narrow channel, an overtaking vessel which intends to pass on the
other vessel`s port side would sound ___________________.
make a substantial course alteration. aground
0 reply with your 0 reduce to own fog signal. minimum steerage
way. 0 constrained by her draft 0 is turning to starboard 1
dredging
1 attempt to make radio contact. 0
0
is holding course and speed
1 intends to pass port to port 0 overtaking another
0
meeting another head-on
0 crossing the course of another 0 two short blasts
1
one short blast
one prolonged followed by two short blasts
0 one short blast
0 two prolonged blasts followed by two short blasts 0 two
prolonged followed by two short blasts
1
1
In a narrow channel, an overtaking which intends to PASS on the
other vessel`s port side would sound _____________. In a traffic
separation scheme a vessel engaged in fishing shall not impede the
passage of......
one prolonged followed by two short blasts any vessel following
a traffic lane.
0 one short blast
1 a power driven vessel following a traffic lane.
0 two prolonged followed by two short blasts 0 a vessel crossing
the traffic separation scheme.
1
0 a vessel of 20 metres or more following a traffic lane.
0
In a traffic separation scheme a vessel of less than 20m. in
length or a sailing vessel shall not impede the safe passage
of......
any vessel following a traffic lane.
0 a power driven vessel following a traffic lane.
1 a vessel crossing the traffic separation scheme. 0 three red
lights
0 a vessel of 20m. or more following a traffic lane. 1
0
In addition to her running lights, an underway vessel
constrained by her draft may carry in a vertical line_____________.
In open waters, you see the lights ( shown in the picture ) right
ahead at medium range. What do you do?
a red light, a white light, and a red light q453.bm Sound one
short p blast and alter course to starboard.
0 two red lights
1 Keep out of the way of the other vessel.
0 Sound two short blasts and alter course to port.
0 Reduce speed or stop and wait for the other vessel to pass. 0
All of the other options.
0
In the Collision Regulations, the Government of any State can
make provision for special rules allowing the use of additional
whistle signals between which vessels? In what situation would you
expect a vessel to show these lights? In which case would an
overtaking vessel sound a whistle signal of two prolonged followed
by one short blast? shall not be Inshore traffic zones used by
which of the following vessels?
Warships and vessels sailing under convoy.
1 Tugs and their tows.
0 Pilot vessels and vessels requiring pilots. 1 When towing
0
q430.bm When on pilotage 0 When unable p duty to manoeuvre When
obertaking in restricted visibility One that can safely use the
adjacent lane within the T.S.S. 0 When overtaking in a narrow 0
channel can One that safely use the appropriate lane within the
T.S.S.
0 When not under command 0
0
1 When overtaking on open waters 1 One en route to or from a
place situated within the inshore traffic zone.
0 Sailing 0 vessels and vessels of less than 20m. in length. 0
Yes, but only for a vessel which can safely navigate within such a
channel. 0
Is anchoring permitted in a narrow channel?
No
0 It should be 1 Yes, but only avoided if at all near the outer
possible limit of the fairway to starboard.
Is anchoring permitted in the traffic separation schemes ?
A vessel shall so far as practicable avoid anchoring in a
traffic separation scheme or in areas near its terminations.
1 Anchoring is permitted, but the vessels shall make all signals
provided in the COLREG rules.
0 Anchoring is prohibited in all circumstance s.
0
Lighting requirements in inland waters are different from those
for international waters for _____________. Looking straight ahead
at night you observe the masthead lights and both side lights of
another vessel. What action should be taken? May the bell or the
gong, or both be replaced by other equipment having the same sound
characteristics ?
barges being 1 vessels towed by pushing restricted in ahead
their ability to maneuver Each ship shall alter course to port. 0
One ship shall alter course to starboard and the other to port.
0 vessel towing astern
0
0 Each ship shall alter course to starboard.
1 You stand on as the other ship will alter course. 1
0
Yes, but only the 0 They cannot gong at the stern. be
replaced.
0 Both of them may be replaced, provided that manual sounding
shall always be possible. 0 A vessel pushing a barge 0 A vessel on
pilotage duty
Of the vessel listed, which must keep out of the way of all the
others? Of the vessels listed, which mustkeep out of the way of all
the others? On nearing a bend in a narrow channel and the way ahead
is obscured, you hear a prolonged blast. What should be your
response? On open water two vessels are in an overtaking.The
overtaking vessel has just sounded one short blast on the whistle.
What is the meaning of this whistle signal?
A vessel constrained by her draft A vessel constrained by her
draft One short blast.
0 A vessel restricted in her ability to maneuver 0 A vessel
restricted in her ability to maneuver 0 Two short blasts.
1
1
0 One prolonged blast. 0 "I am changing course to
starboard."
1 Two prolonged blasts. 1
0
"I request permission to pass you on my port side".
0 "I will maintain course and speed and pass you an your
starboard side." 0 one short blast
On open water, a power-driven two short blasts vessel coming up
dead astern of another vessel and altering her course to starboard
so as to pass on the starboard side of the vessel ahead would
sound_______________. Power-driven vessel 'A' sees q373.bm Reduce
speed power-driven vessel 'B' as shown p and monitor the here at 3
miles range. What compass bearing must vessel 'A' do? of 'B'.
1 two prolonged blasts followed by one short blast 0 Sound one
short blast and alter course to starboard.
0
0 If necessary, reduce speed or stop.
0 Keep her course and speed and carefully watch the compass
bearing of 'B'.
1
Power-driven vessels 'A' and 'B' q445.bm Both vessels are in
sight of one another. p should alter Which of the following
statements course to is correct? starboard. No whistles signals
need be sounded.
0 A' and 'B' should alter course to starboard, each sounding one
short blast on the whistle.
1 A' should blow one blast and alter course to starboard.
0 A' and 'B' 0 should blow one blast and wait for a response
before altering course. 0 I am engaged in pair trawling. 0 0
Referring to Annex II of the Collision Regulations; additional
signals for fishing vessels in close proximity. What does the
signal "one white light over one red light" mean? Shall inshore
traffic zones be used for the inshore traffic ?
I am shooting nets.
0 I am hauling nets.
1 My nets are fast on an obstruction.
Normally, they 1 They shall be 0 They shall be shall not be used
used by all used by for through vessels owned vessels traffic,
except for by the riverside restricted in vessels of less state.
their ability to than 20m in manoeuvre. length and sailing vessels.
1 Make a substantial reduction of speed. 0 Sound five short and
rapid blasts and stand on with caution. 0 a white light
The bearing is steady. The range rratv_2.b Sound one short is 5
miles, reducing slowly. What mp blast and alter action would you
take? course to starboard.
0 Sound two short blasts and alter course to port. 1
0
The light which may be used with a vessel`s whistle is to be
_____________. The light which may be used with a vessel`s whistle
must be _____________. The lights shown indicate a vessel......
used when the whistle is broken used when the whistle is broken
q448.bm towing another p vessel astern, length of tow exceeding
200m.
0 used prior to sounding the whistle 0 a white light
1 used only at night 0 towing more than one vessel astern.
0
0 towing a vessel made fast alongside.
0 towing, tow of less than 200m in length, unable to deviate
from her course. 0 I am operating stern propulsion. 0 Maintain
course and speed. 0 225 deg. (20 points of the compass)
1
The observed vessel sounds three short blasts. What does this
mean?
ls_1.bm I am altering my p course to starboard.
0 I am altering my course to port.
0 I do not understand your intentions / actions. 0 Sound two
short blasts and alter to port. 0 360 deg. (32 points of the
compass)
1
The range is 7 miles and rrpdv_8. Take a series of constant. The
bearing is steady. bmp compass What action would you take?
bearings. The white light shown must be so q439.bm 135 deg. (12
fixed as to show an unbroken p points of the light over an arc of
the horizon. compass) What is the size of this arc?
0 Sound one short blast and alter course to starboard. 0 112 1/2
deg. (10 points of the compass)
1
1
This vessel is on a steady rrpdv_25 Sound five short bearing and
the range is .bmp and rapid blasts reducing. What action would you
and stand on take? with caution.
0 Make a substantial reduction of speed.
0 Sound one short blast and alter course to starboard.
0 Sound two short blasts and alter course to port. 0 Sound one
short blast and alter course to starboard.
1
This vessel is on a steady bearing, range 3 miles. What action
would you take?
rratv_4.b Make a mp substantial reduction of speed.
0 Sound five 1 Sound two short and rapid short blasts blasts and
and alter stand on with course to caution. port.
0
This vessel is on a steady rratv_1.b Sound five short bearing,
the range is 2 miles and mp and rapid blasts reducing slowly. What
action and stand on would you take? with caution.
0 Make a substantial reduction of speed.
1 Sound one short blast and alter course to starboard.
0 Sound two short blasts and alter course to port.
0
This vessel is on a steady rrpdv_4. Two short blasts bearing,
the range is 2 miles and bmp and alter course reducing. What action
should you to port. take? This vessel is signaling two ls_3.bm I am
altering my flashes at intervals. What is the p course to port.
meaning of this signal?
0 One short blast 0 Five short and alter and rapid course to
blasts and starboard. stand on with caution. 1 I intend to overtake
you on your starboard side. 0 I am operating stern propulsion. 0 I
intend to overtake you on your port side. 0 I am altering my course
to starboard.
1 Make a 0 substantial reduction of speed. 0 I do not understand
your intentions / actions. 1 I am altering my course to port. 1
0
This vessel sounds one short blast. What does this mean?
rrpdv_3. I intend to bmp overtake you on your port side.
0
Till when shall the effectiveness of an avoiding action be
checked ?
Untill the vessels shall be abeam one to each other.
0 Untill the other vessel will be at an angle of more than 45
degrees by starboard / portside. 1 two 225grd. red lights 1 It is
limited to te vessels quoted in the rules.
0 Untill the other vessel is finally past and clear.
To indicate that a vessel is constrained by her draft, a vessel
may display, in a vertical line,_______________ To what vessel is
the term "vessel restricted in her ability to manoeuvre" limited to
?
three 360grd. red lights The term "vessel restricted in her
ability to manoeuvre" will not be limited to the vessels quoted in
the rules. Those adopted by the International Maritime
Organization
0 three 360grd. blue lights 0 It is limited to the damaged
vessels which are unable to keep out of the way of another vessel.
0 Those defined on navigational charts
0
0
To which traffic separation schemes does Rule 10 apply?
1 Those set up by local authorities
0 All of the other options
0
To which vessels do the rules of conduct of vessels in
restricted visibility apply to ?
Vessels 0 Vessels not in 1 Vessels navigating in sight of one
navigating in areas of another when or near areas restricted
visibility navigating in or of restricted when only one near areas
of visibility when of them is not in restricted they sight sight of
one visibility. only the another. masthead lights of one another.
"I intend to alter course to port" fishing vessel 0 "I desire to
pass starboard to starboard" 0 vessel anchored 0 "I am altering
course to port" 0 vessel overtaking another in a narrow channel 0
engaged in mineclearanc e 1 When overtaking on open waters 0 in a
traffic separation zone.
0
Two power-driven vessels are meeting. A two blast whistle signal
by either vessel means _____________. Two prolonged blasts followed
by one short blast on the whistle is a signal which could be
sounded by a _____________. Two prolonged blasts followed by one
short blast on the whistle is a signal which would be sounded by a
vessel _____________. Under what circumstances would an overtaking
vessel sound a whistle signal of two prolonged followed by one
short blast? Vessels as far as possible should avoid
anchoring......
1
1
overtaking another in a narrow channel When overtaking in
restricted visibility in a traffic separation scheme or in areas
near it's terminations.
1 anchored
0
0 When overtaking in a narrow channel 1 in a traffic separation
scheme.
0
0 near the 0 termination s of a traffic separation scheme.
What additional lights does a vessel constrained by its draught
have to show? What additional lights shall a trawler engaged in
fishing exhibit when shooting her nets and fishing in close
proximity to other vessel engaged in fishing ? What additional
lights shall a trawler engaged in fishing exhibit, when fishing in
close proximity to other vessel engaged in fishing and when the
nets have come fast upon an obstruction ? What additional lights
shall a trawler engaged in fishing exhibit, when hauling her nets
and fishing in close proximity to other vessels engaged in fishing
? What additional lights shall a trawler exhibit, when engaged in
pair trawling in close proximity to other vessel engaged in fishing
?
Red and white lights in a vertical line. An all-round red
light.
0 Red, white, red 0 Three red lights in a lights in a vertical
line. vertical line. 0 2 all-round white lights in a vertical line.
1 An all-round red light. 1 An all-round green light.
1 Two red 0 lights in a vertical line. 0
2 red lights in a vertical line.
0 A green light over a red light in a vertical line. 0 One white
light over one red light in a vertical line. 1 2 all-round red
lights.
0
2 red lights in a vertical line.
0 An all-round red light.
1
An all-round white light at the masthead.
0 A searchlight directed forward and in the direction of the
other vessel of the pair.
0
What additional lights shall vessels engaged in fishing with
purse seine gear exhibit, when engaged in fishing in close
proximity to other vessels ?
A yellow light flashing alternately white equal light and
occultation duration.
0 An all-round white light.
0 2 yellow lights in a vertical line flashing alternately every
second and with equal light and occultation. duration.
1
What additional signals shall a pilot vessel give, when engaged
on pilotage duty, in conditions of restricted visibility in order
to be identified ? What additional sound signal shall a vessel at
anchor give, in conditions of restricted visibility to give warning
of her position and of the possibility of collision to an
approaching vessel ? What characteristic must a light a light used
to indicate passing intentions have? What characteristic must a
light have if used to signal passing intentions? What
characteristics shall the light supplementing the sound signals
have ?
5 short blasts on the whistle.
0 4 short blasts on the whistle.
1 3 short blasts on the whistle or siren. 0 Signal on the
whistle and/or by fog horn : one prolonged blast followed by rapid
short blasts. 1 It must be an all-round yellow light 0 It must be
an all-round white or yellow light 1 Green to starboard, red to
port and white for astern propulsion.
0
Signal on the whistle : one short blast followed by one
prolonged blast and then one short blast. It must be an alternating
red and yellow light It must be an allround white light
1 Signal on the whistle : 5 short warning blasts.
0
0 It must be an all-round white light 1 It must be an
alternating blue and white light 0 An all-round white light.
0
0
An all-round red light.
0
What could a vessel do to highlight a danger to another vessel,
especially at night ?
Show a square flag and a black ball in a vertical line one over
the other. Four strokes on the bell, sounded in the same manner as
'four bells' to indicate time.
0 Direct a search 1 Sound three light in the short blasts
direction of the on the danger. whistle. 0 A blast of from 0 Three
distinct three to five blasts seconds on the followed by a whistle.
rapid ringing of the bell.
0 Fire a rocket throwing red stars.
0
What could be the fog signal of a vessel aground in a
channel?
0 A rapid 1 ringing of the bell and three separate and distinct
strokes on the bell immediately before and after ringing of the
bell.
What dayshape is prescribed for a vessel constrained by her
draft?
A black cone, apex upward
0 A black cone, apex downward
0 A cylinder
1
What distance between vessels shall the avoiding action ensure
?
A distance of not less than 6 cables shall be ensured.
0 It shall be such 1 It shall be as to result in such as to
passing at a ensure that safe distance. the vessel passes at more
than 2 miles distance. 1 That it is dangerous for another vessel to
approach within 500 metres of the mineclearance vessel. 0 That
another vessel shall navigate with precaution keeping more than 2
nautical miles distance from the vessel.
0
What do the shapes and lights of vessels engaged in
mineclearance operations indicate ?
That it is dangerous for another vessel to approach within 1000
metres of the mineclearance vessel.
0
What do these lights indicate?
q441.bm A vessel towing a 0 A power-driven 0 A powerp barge
vessel of over driven vessel 50m in length of under 50m
1 A dredger indicating the clear side free from obstruction s 0
Powerdriven pilot vessel on pilotage duty and underway.
0
What do these lights indicate?
q427.bm A power-driven p vessel of less than 20 metres in length
underway.
0 A power-driven 1 A powervessel of less driven vessel than 12
metres engaged in in length trawling. underway.
0
What do these lights indicate?
q431.bm A power-driven p vessel engaged in towing unable to
deviate from her course.
0 A vessel engaged in trawling using pelagic gear.
0 A vessel engaged in minesweepin g.
0 A vessel engaged in underwater operations not making way
through the water or at anchor.
1
What do these lights indicate?
q428.bm A power-driven p vessel underway.
1 A power-driven 0 A pushing vessel vessel and a underway vessel
when towing pushed and the length ahead as a of the tow composite
exceeds 200m. unit. 0 A pilot vessel at anchor. 1 A fishing vessel
at anchor.
0 A vessel being towed..
0
What do these lights indicate?
q433.bm A power driven p vessel underway.
0 A fishing vessel stopped in the water.
0
What do these lights show?
q450.bm A vessel over 50 p metres in length engaged in
trawling.
0 A vessel engaged in trawling with her outlying gear extending
more than 150 metres into the seaway. 0 A vessel restricted in her
ability to manoeuvre. 0 Any white all round light.
0 A vessel under 50 metres in length engaged in trawling.
1 A vessel engaged in trawling and at anchor.
0
What do these three red lights indicate?
rrlr_9.b mp
A vessel engaged in towing. Any white light placed on the mast
of a vessel at a height prescribed by the register standards.
0 A power driven vessel.
0 A vessel constrained by draught. 1
1
What does the term ' masthead light' mean ?
0 Any white light placed over the fore and aft centreline of the
vessel showing an unbroken light over an arc of the horizon of 225
degrees and so fixed as to show the light from right ahead to 22.5
degrees abaft the beam on either side of the vessel. 0 A light
showing an unbroken light visible over an arc of the horizon of 180
degrees. 1 The signals given by a vessel not under command, in
distress. 1 A light flashing quick flashes at regular
intervals.
What does the term "all round light" mean ?
A light showing 1 An unbroken an unbroken light light visible
over an arc of the from ahead horizon of 360 and either side
degrees. of the vessel.
0
What does the term "distress signals" mean ?
The signals given 0 The signals by a vessel in given by a
distress. vessel in distress and in need of assistance. A light
flashing at regular intervals at a frequency of 60 flashes per
minute. 0 A light flashing at regular intervals at a frequency of
120 flashes or more per minute. 1 Vessels using a Diesel engine as
a means of propulsion.
0
What does the term "flashing light" mean ?
0
What does the term "powerdriven vessel" mean ?
The term "powerdriven vessel" means any vessel propelled by
machinery.
0 All vessels capable of navigating on water, except for sailing
vessels.
0
What does the term "prolonged" mean ?
A blast of from 4 to 6 seconds' duration.
What does the term "restricted visibility" mean ?
Any condition in which visibility is reduced under 1,5 m.
1 A blast of more 0 A blast of than 6 from 2 to 3 seconds'
seconds' duration, duration, produced by a produced by power-driven
a vessel. vessel, underway. 0 The condition 0 Any condition in
which the in which visibility is visibility is restricted by
restricted by fog, rain or fog, mist, snow. falling snow, heavy
rainstorms, sandstorms or any other similar causes. 0 Any
powerdriven vessel using sails,too. 0 Any vessel under sail
provided that propelling machinery, if fitted, is not being
used.
0
1
What does the term "sailing vesel" mean ?
Any vessel using wind power as means of propulsion.
1
What does the term "short blast" mean ?
A blast of from 2 to 3 seconds' duration.
0 A blast of a 0 A blast of short, less than about 1 1 second's
second's duration, duration. produced by a power-driven vessel
underway. 0 A yellow light showing an unbroken light over an arc of
the horizon of 360 degrees. 0 A yellow light placed as nearly as
practicable at the stern showing an unbroken light over an arc of
the horizon of 135 degrees and so fixed as to show the light 67.5
degrees from right aft on each side of the vessel.
1
What does the term "towing light" mean ?
A white light placed above the sternlight used as a steering
guide, while towing.
1
What does the term "vessel constrained by her draught" mean
?
A vessel which because of her draught and the existance of
navigation obstructions in unable to deviate from her course.
0 A deep draught vesselbeing towed.
0 A powerdriven vessel which because of her draght in relation
to the avilable depth of water is severely restricted in her
ability to deviate from her course.
1
What does the term "vessel not under command" mean ?
Any vessel having serious damages to the steering gear and/or
the main engine.
0 Any vessel 1 Any damaged which through vessel which some is
unable to exceptioal manoeuvre circumstance and to keep is unable
to out of the way manoeuvre as of another required by the vessel.
rules and is therefore unable to keep out of the way of another
vessel. 1 A vessel with 0 A vessel minor unable to damages to
deviate from the gear and/or her course the engine, due to some
being navigation remedied. obstructions.
0
What does the term "vessel restricted in her ability to
manoeuvre" mean ?
A vessel which from the nature of her work is restricted in her
ability to manoeuvre as required by the rules and is therefore
unable to keep out of the way of another vessel. Any vessel which
is not made fast to the shore.
0
What does the term "vessel underway" mean ?
0 Any vessel at sea having the propeller system working. 1
Vessel's breadth midship.
0 Any vessel which not at anchor or made fast to the shore, or
aground. 0 The mean breadth of the vessel measured at the bow,
stern and midship.
1
What does the term "vessel's breadth" mean ?
Vessel's greatest breadth.
0
What does the term "vessel's length" mean ?
Vessel's length between perpendiculars.
0 Vessel's length 1 Vessel's overall. length measured between
the draught line forward and the draught line aft.
0
What does the term 'vessel engaged in fishing" mean ?
Any vessel fishing with trolling lines or other fishing
apparatus which do not restrict manoeuvrability.
0 All vessels built and equipped for fishing.
0 Any vessel fishing with nets, lines, trawls or other fishing
apparatus which restrict manoeuvrabili ty. 1 Any aircraft being on
the water for various reasons.
1
What does the word "seaplane" mean ?
Any aircraft designed to carry out hydrotechnical and/or
hydrometeorologi cal work. A green light on the starboard side and
a red light on the port side each showing an unbroken light over an
arc of the horizon of 112.5 degrees and so fixed as to show the
light from right ahead to 22.5 degrees abaft the beam on its
respective side.
0 Any aircraft designed to manoeuvre on the water.
0
'What does the word "sidelight" mean ?
1 The white sidelights from the sideladders.
0 The white light from the decks.
0
What does the word "sternlight" mean ?
A white light placed at the stern of a vessel.
0 A white light 1 A white light placed as placed at the nearly
as stern showing practicable at an unbroken the stern light over an
showing an arc of the unbroken light horizon 360 over an arc of
degrees. the horizon of 135 degrees and soixed as to show the liht
67.5 degrees right aft on from each side of the vessel. 1 Any
floating object fitted with propelling machinery.
0
What does the word "vessel" mean, according to the COLREG rules
?
Any watercraft 0 Any watercraft capable of including nonfloating
on water displacement without propelling craft and machinery.
seaplanes used or capable of being used as a means of
transportation on water.
0
What does the word "whistle" mean, aboard ?
An electronic 0 Any sound device capable of signalling producing
short appliance and prolonged capable of blasts. producing the
blasts prescribed by the rules. dsr_14.b A vessel at mp anchor. 1 A
vessel aground.
1 A mechanical device producing only fog signals.
0
What does this shape indicate?
0 A vessel engaged in fishing.
0 A vessel engaged in mine clearance operations. 0
0
What equipment for sound signals shall a vessel of 100 metres or
more in length be provided with? What equipment for sound signals
shall a vessel of 12-100 metres in length be provid with ? What
equipment for sound signals shall a vessel of less than 12 metres
in length carry ?
A whistle, a bell 1 A whistle in the 0 A bell in the and a gong
at the fore part and a fore part and stern. gong at the a gong at
the stern. stern. One whistle at midship. 0 A bell in the 0 A
whistle and fore part or at a bell. the stern of the vessel. 0
Vessels of less 0 Vessels of than 12 metres less than 12 in length
shall metres in carry a whistle length shall and a bell in not be
the fore part. obliged to carry the prescribed sound signalling
appliances, but they shall be provided with some other means of
making an efficiement sound signal. 0 The tow is less than 200
metres. 0 The vessel is hampered by tow - tow less than 200
metres.
1
Vessels of less than 12 metres in length shall not be obliged to
carry sound signalling appliances.
1
What information is given about the tow shown here?
blr_18.b The tow is 200 mp metres or more.
0 The vessel 1 is hampered by tow - tow more than 200 metres. 0
A vessel 0 hampered by tow - tow more than 200 metres. 1 Any vessel
0 other than a vessel propelled by sails.
What information is given about the tow shown here?
blr_22.b A vessel mp hampered by her tow - tow less than 200
metres
0 The tow is less than 200 metres.
1 The tow is 200 metres or more.
What is a power-driven vessel?
Any vessel which is self-propelled.
0 Any vessel propelled by an internal combustion engine.
0 Any vessel propelled by machinery.
What is the arc (angle) of visibility of a masthead light? What
is the arc (angle) of visibility of a sternlight? What is the arc
of visibility of the rrlr_9.b 3 red lights shown here? mp
225 degrees 150 degrees From right aft to 22.5 degrees abaft the
beam on each side.
1 180 degrees 0 135 degrees 0 All round.
0 210 degrees 1 120 degrees 1 From right ahead to 22.5 degrees
abaft the beam on each side.
0 270 degrees 0 270 degrees 0 From right ahead to 22.5 degrees
abaft the beam on the starboard side.
0 0 0
What is the arc of visibility of the rrlr_3.b 3 white lights
shown here? mp
From right ahead to 22.5 degrees abaft the beam on the starboard
side. All round
0 From right ahead to 22.5 degrees abaft the beam on each side.
0 From right ahead to 22.5 degrees forward of the beam on each
side
1 From right aft to 22.5 degrees abaft the beam on each side. 0
From right aft to 22.5 degrees abaft the beam on each side
0 All round.
0
What is the arc of visibility of the rrlr_1.b mastlights shown
by this vessel? mp
0 From right ahead to 22.5 degrees abaft the beam on each side 0
From right aft to 22.5 degrees abaft the beam on each side.
1
What is the arc of visibility of the rrlr_5.b red lights shown
here? mp
All round.
1 From right ahead to 22.5 degrees abaft the beam on each
side.
0 From right ahead to 22.5 degrees abaft the beam on the
starboard side.
0
What is the arc of visibility of the rrlr_1.b sidelight shown by
this vessel? mp
From right aft to 22.5 degrees abaft the beam on each side.
0 All round.
0 From right ahead to 22.5 degrees abaft the beam on each
side.
0 From right ahead to 22.5 degrees abaft the beam on the
starboard side.
1
What is the duration of a "'short blast" on the whistle? What is
the duration of a prolonged blast? What is the duration of one
flash, when using the manoeuvring light signal ?
One second. 6-8 seconds About one second.
1 Two seconds.
0 Three seconds. 0 4-6 seconds 1 more than 8 seconds 1 2 to 3
seconds. 0 As long as possible so as to be observed.
0 Four seconds. 0 2-4 seconds 0
0 0
What is the fog signal of this vessel?
q434.bm One prolonged p blast followed by two short blast on the
whistle.
0 Four strokes on the bell, sounded in the same manner as 'four
bells' to indicate time.
0 A rapid ringing of the bell for about 5 seconds repeated every
minute.
1 A rapid 0 ringing of the bell and also one short, one long and
one short blast in succession.
What is the fog signal of this vessel?
blr_4.bm Rapid ringing of p the bell for 5 seconds every 1
minute.
0 One ( if making 1 Four short way ) or two ( if blasts at 2
stopped ) minute prolonged intervals. blasts at intervals of 2
minutes. 1 Ringing of bell 0 Rapid ringing for 5 seconds of the
bell for followed by the 5 seconds. gong for 5 seconds.
0 Bell 5 seconds followed by gong 5 seconds every 1 minute. 0 As
for the type of vessel shown followed by 4 short blasts. 0 As for
the type of vessel shown followed by 4 short blasts. 1
0
What is the fog signal of this vessel?
blr_22.b One prolonged mp blasts followed by two short blasts at
intervals less than or equal to 2 minutes.
0
What is the fog signal of this vessel?
blr_25.b One ( if making 0 One prolonged mp way ) or two ( if
blast followed stopped ) by two short prolonged blasts blasts. at
intervals less than or equal to 2 minutes. 75 metres. 0 50
metres.
1 Rapid ringing of the bell for 5 secondsat intervals less than
or equal to 2 minutes.
0
What is the length of a vessel at anchor which must use the
available working or equivalent lights to illuminate her decks ?
What is the length of the vessel shown here? rrlr_1.b mp
0 100 metres and more.
Less than 12 metres in length.
0 There is no indication of length.
0 May be any length but probably 50 metres or more in length. 0
May be any length but probably 50 metres or more in length. 0 Less
than 50 metres in length. 0 Less than 20 metres in length.
1 Greater than 100 metres in length.
0
What is the length of the vessel shown here?
rrlr_9.b mp
Less than 50 metres in length.
0 No indication of length.
1 Less than 20 metres in length.
0
What is the length of the vessel shown here?
rrlr_3.b mp
Less than 20 metres in length.
0 Less than 12 metres in length. 0 Less than 50 metres in
length.
1 Greater than 100 metres in length.
0
What is the length of the vessel shown here?
rrlr_5.b mp
Greater than 100 metres in length.
0 No 1 indication of length.
What is the length of the vessel shown here? What is the length
of the vessel shown here?
rrlr_3.b mp
Less than 12 metres in length.
0 Greater than 100 metres in length. 0 Less than 50 metres.
0 Less than 50 metres in length. 0 Less than 20 metres.
1 7 metres or less in length.
0
blr_13.b No indication of mp length.
0 May be any 1 length but probably 50 metres or more.
What is the length of the vessel shown here?
blr_18.b No indication of mp length.
0 Less than 50 metres.
0 May be of any length but probably 50 metres or more. 1 Less
than 12 metres. 0 Less than 12 metres.
1 Greater than 100 metres.
0
What is the length of the vessel shown here? What is the length
of the vessel shown here?
blr_20.b 10 metres or mp less. blr_25.b No indication of mp
length.
0 No indication of length. 0 Greater than 100 metres.
0 Less than 50 metres.
0
0 May be of 1 any length but probably 50 metres or more. 0 9
metres. 0
What is the minimum vertical separation of the mastlights on
power driven vessels such that, in all normal conditions of trim,
the afterlight will be seen over and separate from the forward
light? What is the range of the rrlr_1.b mastlight being displayed
by this mp ship? is the range of visibility of rrlr_1.b What the
sidelights shown by this ship? mp What is the reason for proceeding
at a "safe speed" ?
So it can be seen at 1000 metres from the stem at sea level.
1 6 metres.
0 5 metres.
6 miles 6 miles
1 3 miles 0 3 miles
0 2 miles 1 2 miles 0 A vessel shall proceed at a safe speed to
avoid a close quarters situation between ships.
0 5 miles 0 5 miles 0
0 0
A vessel shall 1 A vessel shall proceed at a safe proceed at a
speed so that safe speed so she can take that she can in proper and
all effective action to circumstances avoid collision avoid any and
be stopped collision. within a distance appropriate to the
prevailing circumstances and conditions. A warning signal given by
a vessel in fog. 0 A distress signal.
What is the significance of a continuous sounding with any
fog-signalling apparatus ?
1 A signal given by a vessel not under command or restricted in
her ability to manoeuvre.
0
What is this vessel's fog signal?
blr_13.b Rapid ringing of mp the bell for 5 seconds at intervals
not exceeding one minute.
0 Ringing of the 0 One bell for 5 prolonged seconds blast
followed followed by the by 2 short gong for 5 blasts at seconds at
intervals not intervals not exceeding exceeding one two minutes.
minute. 0 A vessel engaged on pilotage duty. 0 Red and green
sidelights at the forward end of the leading barge and white
allround light on each barge. 1 A vessel constrained by her
draught. 0 A white allround light at the forward end of the
barge.
1 As for the type of vessel shown followed by 4 short
blasts.
0
What kind of vessel may sound a fog signal consisting of four
short blasts? What light or lights must be carried by a group of
three barges in a line being pushed ahead of a tug as shown
here?
A vessel being towed.
0 A fishing vessel..
0
q452.bm Red and green p sidelights on each barge.
0 Red and 1 green sidelights at the forward end of the leading
barge. 0
What light signals may suppliment the sound signals given by a
vessel which fails to understand the intentions of another or is in
doubt whether sufficient action is being taken by the other to
avoid collision ? What lights and shapes shall a fishing vessel
exhibit, when not engaged in fishing ?
Successive light signals.
0 A light signal of 1 One long light at least 5 short signal and
and rapid other short flashes. light signals.
The lights and shapes prescribed for a vessel of her length. The
lights and shapes prescribed for a pilot vessel.
What lights and shapes shall a pilot vessel exhibit when not
engaged on pilotage duty ?
1 The lights of a vessel engaged in fishing and making way
through the water. 0 The lights or shapes prescribed for a similar
vessel of her length.
0 The lights of a vessel restricted in her ability to manoeuvre.
1 The lights and shapes for vessels restricted in their ability to
manoeuvre.
0
0
What lights are required for a single barge being towed
alongside? What lights shall a fishing vessel other than trawling
exhibit, when making way through the water?
Sidelights and a stern light
Sidelights, 2 allround lights in a vertical line, the upper
being white and the lower red.
1 Sidelights, a 0 Sidelights special and a special flashing
light, flashing light and a stern light 0 2 all-round 0 Sidelights,
a lights in a sternlight, 2 vertical line, all-round the upper
lights in a being red and vertical line, the lower white the upper
and a being red and sternlight. the lower white. 1 3 masthead
lights in a vertical line, sidelights and a towing light. 0
Sidelights and a towing light.
0
1
What lights shall a power-driven vessel exhibit when pushing
ahead or towing alongside, this not being the case of a composite
unit ?
2 masthead lights forward in a vertical line, sidelights, a
sternlight.
0
What lights shall a power-driven vessel exhibit, when engaged in
towing operations and restricted in her ability to deviate from her
course ?
The lights prescribed for power-driven vessels underway, engaged
in towing operations. 2 masthead lights in a vertical line,
sidelights and a towing light. 3 masthead lights in a vertical line
and a towing light.
0 The lights of a vessel restricted in her ability to manoeuvre
engaged in towing operations. 0 2 masthead lights in a vertical
line, sidelights, a sternlight and a towing light. 0 3 masthead
lights in a vertical line, sidelights and a sternlight. 0 Instead
of the lights forward aft or aft, 3 masthead lights in a vertical
line, sidelights, a sternlight, a towing light.
1 The lights prescribed for vessels not under command.
0
What lights shall a power-driven vessel of less than 50 metres
in length exhibit when towing and the length of the tow is less
than 200 metres ? What lights shall a power-driven vessel of less
than 50 metres in length exhibit, when towing and the length of the
tow exceeds 200 metres ? What lights shall a power-driven vessel of
more than 50 metres in length exhibit, when towing and the length
of the tow exceeds 200 metres ?
1 Sidelights, a sternlight and a towing light.
0
0 3 masthead lights in a vertical line, sidelights, a sternlight
and a towing light. 1 3 masthead lights in a vertical line,
sidelights and a towing light.
1
3 masthead lights in a vertical line, sidelights and a
sternlight.
0
What lights shall a power-driven vessel of more than 50 metres
in length exhibit, when towing and the length of the tow is less
than 50 metres ?
Instead of the 1 Sidelights, a masthead lights sternlight and
forward and aft, 2 a towing light. masthead lights in a vertical
line, sidelights, a stern light and a towing light. A masthead
light, sidelights, a sternlight. A masthead light, sidelight and a
sternlight. 1 A masthead light and sidelight.
0 2 masthead lights in a vertical line, sidelights and a towing
light.
0
What lights shall a power-driven vessel underway, less than 50
metres in length, exhibit ? What lights shall a power-driven vessel
underway, of 50 metres or more in length, exhibit ?
0 Sidelights and a sternlight.
0
0 A masthead 1 Sidelights, a light forward, a sternlight and
second two white masthead light masthead abaft of and lights.
higher than the forward one, sidelights and a sternlight. 1
Sidelights. 0 A white light which could be exhibited if
practicable.
0
What lights shall a power-driven vessel underway, of less than 7
metres in length and whose maximum speed does not exceed 7 knots,
exhibit ?
An all-round white light and also, if practicable,
sidelights.
0
What lights shall a pushing vessel and a vessel being pushed
ahead exhibit, when they are rigidly connected in a composite unit
?
The lights of a tugboat with the length of the tow less than 200
metres.
0 Every vessel shall exhibit herwn lights prescribed for the
powerdriven vessel underway. 0 Masthead lights and sidelights. 1
Sidelights.
0 The lights of a single power-driven vessel, underway.
1
What lights shall a sailing vessel underway exhibit ? What
lights shall a sailing vessel underway exhibit, when her length is
less than 20 metres ? What lights shall a sailing vessel underway
exhibit, when her length is less than 7 metres ?
Sidelights.
0 Sidelights and a sternlight. 0 A white light to be exhibited
if necessary. 0 A white light at the masthead.
1
Sidelights and a sternlight combined in one lantern. She shall
have ready at hand an electric torch or lighted lantern showing a
white light which shall be exhibited in sufficient time to prevent
collision. The lights of a vessel at anchor and 2 all-round red
lights in a vertical line. An all-round white light at the fore
masthead.
0
1 Sidelights.
0
What lights shall a vessel aground exhibit ?
1 2 all-round red lights in a vertical line.
0 3 all-round red lights in a vertical line and the lights of a
vessel at anchor. 0 An all-round white light in the fore part and
another all-round white light at or near the stern, but at a lower
level than the light in the fore part. 1 A light in the fore
part.
0
What lights shall a vessel at anchor exhibit, when her length
exceeds 50 metres ?
0 An all-round white light in the fore part.
1
What lights shall a vessel at anchor exhibit, when less than 50
metres in length ?
The lights of a vessel at anchor.
0 Instead of the lights of a vessel at anchor, an allround white
light where it can best be seen. 1 The masthead light and
sidelights. 0 A sternlight and sidelights at the forward end.
0
What lights shall a vessel being pushed ahead exhibit, this not
being the case of a composite unit ? What lights shall a vessel
being towed alongside exhibit ?
She shall exhibit the sidelights at the forward end. The
masthead lights and a sternlight.
0 The masthead light and a sternlight. 1 Sidelights at the
forward end.
0
0
What lights shall a vessel constrained by her draught exhibit
?
The lights prescribed for power-driven vessels underway and an
additional red light.
0 The lights 1 The lights of prescribed for a vessel
power-driven restricted in vessels her ability to underway and
manoeuvre. 3 additional allround red lights in a vertical line. 1
The lights of a vessel not under command. 0 2 all-round red lights
in a vertical line to indicate the side on which an obstruction
exists, 2 red lights in a vertical line to indicate the side on
which another vessel may pass and the lights of a power-driven
vessel underway.
0
What lights shall a vessel engaged in dredging or underwater
operations exhibit, when restricted in her ability to manoeuvre
?
2 all-round red lights in a vertical line to indicate the side
on which the obstruction exists, 2 allround green lights in a
vertical line to indicate the side on which another vessel may pass
and the lights of a vessel restricted in her ability to manoe
0
What lights shall a vessel engaged in dredging or underwater
operations exhibit, when restricted in her ability to manoeuvre and
at anchor ?
The lights of a power-driven vessel at anchor.
0 A red light indicating the side on which an obstruction exists
and the lights for a vessel at anchor.
0 Instead of the lights of a vessel at anchor, the lights of a
vessel restricted in her ability to manoeuvre engaged in dredging
operations. 1 An all-round white light in the direction of the
gear.
1
What lights shall a vessel engaged in fishing other than
trawling exhibit, when there is outlying gear extending more than
150 metres horizontally and is not making way through the water
?
2 all-round lights in a vertical line, the upper being white and
the lower red, an allround red light in the direction of the gear.
Sidelights, a sternlight, 2 allround lights in a vertical line, the
upper being red and the lower white, an allround white light in the
direction of the gear.
What lights shall a vessel engaged in fishing, other than
trawling exhibit, when there is outlying gear extending more than
150 metres horizontally and is making way through the water ?
0 2 lights in a vertical line, the upper being red and the lower
white, an allround white light in the direction of the gear. 1
Sidelights, a sternlight, an all-round white light in the direction
of the gear.
0
0 Sidelights, a sterlinght, two lights in a vertical line, the
upper white and the lower red.
0
What lights shall a vessel engaged in mineclearance operations
exhibit ?
The lights of a vessel not under command.
0 The lights of a vessel not under command and 3 all-round red
lights. 0 Sidelights, 2 lights in a vertical line, the upper being
white and the lower green, a masthead light placed abaft of and
higher than the green light.
What lights shall a vessel engaged in trawling exhibit, when
making way through the water ?
Sidelights, a sternlight and an all-round green light at the
masthead.
0 The lights prescribed for power-driven vessels underway and 3
allround green lights. 0 Sidelights, a sternlight, 2 lights in a
vertical line, the upper being green and the lower white, a
masthead placed abaft of and higher than the green light. 1 2
all-round lights in a vertical line, the upper being white and the
lower green and a sternlight.
1
1
What lights shall a vessel engaged in trawling exhibit, when not
underway ?
An all-round green light and a masthead light placed higher.
0 2 all-round lights in a vertical line, the upper being green
and the lower white, a masthead light placed abaft of and higher
than the allround light. 1 The lights of a vessel at anchor.
0
What lights shall a vessel engaged on pilotage duty exhibit,
when she is at anchor ?
The lights of a vessel at anchor and 2 all-round lights in a
vertical line, the upper being white, the lower red. 2 all-round
lights in a vertical line, the upper being red and the lower
white.
0 The lights of a vessel at anchor and a white alternating light
at the masthead. 0 2 all-round lights in a vertical line, the upper
being white and the lower red.
0
What lights shall a vessel engaged on pilotage duty exhibit,
when she is not underway ?
0 An all-round white alternating light.
1
What lights shall a vessel engaged on pilotage duty exhibit,
when underway ?
What lights shall a vessel not under command exhibit, when
making way through the water ? What lights shall a vessel not under
command exhibit, when not making way through the water ?
Sidelights and 2 0 Sidelights, a 1 Sidelights, a sternlight, 2
allall-round lights in sternlight and round lights in a vertical
line, the an all-round a vertical line, upper being red quickwhite
and the the upper flashing light. lower red. being white and the
lower red. Two red lights in 1 A red light, 0 2 red lights a
vertical line, sidelights and and a sidelights and a a sternlight.
sternlight. sternlight. Sidelights and 2 red lights in a vertical
line. 0 2 all-round red lights in a vertical line. 1 The red lights
and a sternlight.
0
0
0
What lights shall a vessel restricted in her ability to
manoeuvre exhibit, when at anchor ?
The red, white, red lights in a vertical line.
0 The red, white, 1 The anchor red lights in a light in the
vertical line, an fore part and anchor light in the anchor the fore
part light at the and an anchor stern. light at the stern. 0 3
lights in a vertical line, the highest and the lowest being red and
the middle one white. 0 Sidelights, a sternlight, a masthead light
and 3 lights in a vertical line, the lowest and the highest being
red and the middle one white. 0 3 lights in a vertical line, the
highest and the lowest being white and the middle one red. 0 If she
does not exhibit the lights of a sailing vessel, she shall be ready
to show an electric torch or lighted lantern showing a white light.
0 The same lights as a power-driven vessel underway and an
additional allround flashing yellow light.
0
What lights shall a vessel restricted in her ability to
manoeuvre exhibit, when making way through the water ?
Sidelights, a sternlight and 3 lights in a vertical line, the
highest and the lowest one being red and the middle one white.
1
What lights shall a vessel restricted in her ability to
manoeuvre exhibit, when not making way through the water ?
3 lights in a vertical line, the highest and the lowest being
red and the middle one white.
1 3 white lights in a vertical line.
0
What lights shall a vessel under oars exhibit ?
A blue light to be shown at any time.
0 A red light.
1
What lights shall an air-cushion vessel exhibit, when operating
in non-displacement mode ?
The same lights as a powerdriven vessel underway
0 An all-round flashing yellow light.
1
What lights shall an inconspicuous, partly submerged vessel or
object being towed exhibit, when her length exceeds 100 metres and
her breadth exceeds 25 metres ?
5 all-round white lights at the forward end, after end, at or
near the extremities of her breadth and a light between the forward
end and the after end so that the distance between the lights shall
not exceed 100 metres. An all-round white light at the forward
end.
1 3 all-round white lights.
0 4 all-round white lights at the forward end, after end and at
the extremities of her breadth.
0
What lights shall an inconspicuous, partly submerged vessel or
object less than 25 metres in breadth exhibit, when being towed ?
What lights shall an inconspicuous, partly submerged vessel or
object more than 25 metres in breadth, exhibit ?
0 An all-round white light at the after end.
0 An all-round white light at the forward end and one at the
after end. 0 Green and red sidelights at the extremities of her
breadth.
1
4 all-round white lights at the after end, forward end and on
each side at the extremities of her breadth. Masthead lights and a
sternlight. The lights and shapes prescribed by the rules.
What lights shall the objects or vessels being towed exhibit,
other than inconspicuous vessels or objects ? and shapes shall a
What ligths seaplane exhibit, when alighted on the sea ?
1 An all-round white light at the forward end and another
allround white light at the after end. 0 Sidelights and a
sternlight. 1 The lights and shapes necessary for
identification.
0
1 Towing lights and a sternlight. 0 The lights and shapes for
vessels of less than 20 metres in length. 0 The vessel which has
the other on her own starboard side shall keep out of the way and,
if the circumstance s of the case admit, avoid crossing ahead of
the other vessel. 0 By one or two black balls at the masthead.
0
0
What manoeuvre shall be made when 2 power-driven vessels are
crossing so as to involve risk of collision ?
The vessel which sees the other on port side shall keep out of
the way of the other.
0 The vessel which sees the other on starboard side shall reduce
speed or even stop to let the other pass by.
1
What may the sound signals given on the whistle be supplemented
by, to indicate the manoeuvre being carried out ?
By ligth signals.
1 By any other signals.
0
What means shall a vessel use to determine if risk of collision
exists ?
Every vessel shall use all available means appropriate to the
prevailing circumstances aand conditions to determine if risk of
collision exists. 3 nautical miles.
1 Every vessel shall use all visual means to determine if risk
of collision exists.
0 Every vessel shall use the radar to determine if risk of
collision exists.
0
What range shall an all-round white light of an inconspicuous,
partly submerged vessel or objectrange shall the mastlight be What
being towed be visible ? visible at, for vessels less than 12m in
length ? the mastlights What range shall be visible at, for vessels
between 12 and 20m in length ? What range shall the mastlights be
visible at, for vessels between 20 and 50m in length ? What range
shall the sidelights be visible at for vessels less than 12 metres
in length ? What range shall the sidelights be visible at for
vessels more than 50 metres in length ? What range shall the
sidelights be visible at, for vessels of 12 metres or more in
length, but less than 50 metres ? What range shall the sternlight
be visible at, for vessels between 12 and 50 metres in length ?
What range shall the sternlight be visible at, for vessels less
than l2 metres in length ? What range shall the sternlight be
visible at, for vessels of 50 metres or more in length ? What range
shall the towing light be visible at, for vessels less than 12
metres in length ? What range shall the towing light be visible at,
for vessels of 12-50 metres in length ? What range shall the towing
light be visible at, for vessels of 50 metres or more in length ?
What range shall the white, red, green or yellow all round light be
visible at, for vessels of 50 metres or more inthe white, red, What
range shall length ? green or yellow all round light be visible at,
for vessels of l2-50 metres in length ?the white,red, What range
shall green or yellow all round light be visible at, for vessels
less than 12 metres in length ?
1 2 nautical miles. 0 2 nautical miles. 0 2 nautical miles. 1
Between 3 - 5 nautical miles. 0 0.5 nautical miles. 1 5 nautical
miles. 0 2 nautical miles.
0 1 nautical mile. 1 1 nautical mile. 0 3 nautical miles. 0 2
nautical miles. 0 1 nautical mile. 0 Between 3 and 5 nautical
miles. 1 1.5 nautical miles.
0
3 nautical miles. 1 - 2 nautical miles. 5 nautical miles.
0 1
0
2 nautical miles.
1
3 nautical miles.
0
3 nautical miles.
0
3 nautical miles.
0 2 nautical miles. 0 1.5 nautical miles. 1 4 nautical miles. 0
3 nautical miles. 0 2 nautical miles. 1 2 nautical miles. 1 4
nautical miles. 0 2 nautical miles. 0 Less than 1 nautical
mile.
1 1 nautical mile. 0 2 nautical miles. 0 2 nautical miles. 0 2
nautical miles. 1 5 nautical miles. 0 3.5 nautical miles 0 5
nautical miles. 1 1 nautical mile. 0 2 nautical miles.
0
3 nautical miles.
1
3 nautical miles.
0
1 nautical mile.
1
3 nautical miles.
0
3 nautical miles.
0
3 nautical miles.
0
3 nautical miles.
0
1 nautical mile.
1
What ranges shall the mastlights be visible at for vessels of
50m or more in length ? What safety precautions shall a seaplane on
the water take ?
5 miles maximum. She shall keep well clear of all vessels and
avoid impeding their navigation.
0 Between 3 and 0 6 nautical 5 nautical miles. miles. 1 She
shall give a warning signal in order to be avoided. 0 She shall
consider herself as any other privileged vessel and follow her
course and speed. 0 To sound one long blast and navigate with
particular alertness and caution.
1
0
What safety precautions shall a vessel nearing a bend of a
narrow channel or fairway take ?
To sound 5 short blasts.
0 To sound one short blast and navigate on the right side of the
channel.
1
What shall a vessel engaged in diving operations exhibit,
whenever her size makes it impracticable to exhibit all lights and
shapes prescribed for vessels engaged in during operations ?
3 all-round lights in a vertical line, the highest and lowest
being red and the middle light white.
0 3 all-round 1 A rigid replica lights in a of the vertical
line, International the highest Code flag " A and lowest ", not
less being red and than 1 metre the middle light in height. white,
a rigid replica of the International Code flag "