Lights and Shapes Flashcards

1
Q

visibility of lights vessels >50m

A

Masthead Light 6 miles
Sidelight 3 miles
Sternlight 3 miles
Towing Light 3 miles
White, Red, Green all round Light 3 miles

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2
Q

Visibility of lights vessels greater than 12m less then 50m

A

Masthead Light 5 miles <20m 3 miles
Sidelight 2 miles
Sternlight 2 miles
Towing Light 2 miles
White, Red, Green all round Light 2 miles

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3
Q

Visibility of lights vessels less than 12m

A

Masthead Light 2 miles
Sidelight 1 mile
Sternlight 2 miles
Towing light 2 miles
White, Red, Green all round Light 2 miles

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4
Q

PDV Underway

A

Masthead Light forward
Second Masthead Light Abaft and Higher than the forward one >50m
Sidelights
Sternlight

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5
Q

Air cushion vessel

A

In addition to the lights for a PDV Underway
also shall exhibit an all round flashing yellow light

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6
Q

WIG

A

when taking off, landing and in flight near the surface in addition to the lights for a PDV Underway a high intensity all round flashing red light

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7
Q

PDV <12m

A

All round white light
sidelights

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8
Q

PDV <7m <7knots

A

All round white light
Sidelights if practiable

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9
Q

Masthead Light or All round white Light on PDV <12m

A

may be displaced from the fore and aft centreline of the vessel if centreline fitting is not practicable. provided that the side lights are combined in a lantern which shall be carried in one lantern which shall be on the fore and aft centreline or located as nearly as practicable in the same fore and aft line as the masthead light or the all round white light

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10
Q

Towing Vessel

A

Two masthead lights in a vertical line
when length of tow exceeds 200m three masthead lights in a vertical line
side lights
sternlight
towing light in a vertical line above the sternlight same as sternlight visability
Day shape if tenth of tow exceeds 200m a diamond shape where it can best be seen

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11
Q

Pushing Rigidly Connected in a composite unit

A

they shall be regarded as one power driven vessel

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12
Q

PDV when pushing ahead to towing alongside except in the case of a composite unit

A

two masthead lights in a vertical line
sidelights
stern light

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13
Q

Vessel or object being towed

A

sidelights
sternlight
when length of tow exceeds 200m a diamond shape where it can best be seen

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14
Q

Vessel being pushed ahead not part of a composite unit

A

exhibit at the forward end sidelights

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15
Q

Vessel being towed alongside

A

sternlight and at forward end sidelights

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16
Q

An inconspicuous, party submerged vessel or object <25m breadth

A

one all round white light at or near the forward end and one at or near the end

17
Q

An inconspicuous, party submerged vessel or object >25m breadth

A

one all round white light at or near the forward end and one at or near the end
two additional all round white lights at or near the extremities of its breadth

18
Q

An inconspicuous, party submerged vessel or object >100m

A

one all round white light at or near the forward end and one at or near the end
an additional all round white light between these lights so that the distance between the lights don’t exceed 100m

19
Q

Sailing Vessels Underway

A

Sidelights
Sternlight

20
Q

Sailing vessels >20m Underway

A

may combine the lights for a sailing vessel >20m one lantern carried at or near the top of the mast where it can best be seen

21
Q

sailing vessel day shapes

A

if being propelled by machinery she shall exhibit forward where it can best be seen a conical shape apex pointing downwards

22
Q

Fishing Vessel engaged in trawling whether underway or at anchor

A

trawling - dragging through the water of a dredge net

two all round lights in a vertical line the upper being red and lower being white
Day shape - a shape consisting of two cones with their apexes in a vertical line one above the other

when making way through the water
sidelights
sternlight

23
Q

Fishing Vessel engaged in trawling whether underway or at anchor >50m

A

two all round lights in a vertical line the upper being red and lower being white
Day shape - a shape consisting of two cones with their apexes in a vertical line one above the other
also a masthead light abaft and higher that the all round green light

when making way through the water
sidelights
sternlight

24
Q

fishing vessel engaged in trawling >20m shooting nets

A

in addition to the lights for this vessel two all round white lights in a vertical line

25
Q

fishing vessel engaged in trawling >20m Hauling nets

A

in addition to the lights for this vessel
one white light over one red light in a vertical line

26
Q

fishing vessel engaged in trawling >20m Fast on obstruction

A

in addition to the lights for this vessel
two red lights in a vertical line

27
Q

Fishing vessel not engaged in trawling

A

Two all round lights in a vertical line the upper being red and lower being white
Day shape - two cones with apexes together in a vertical line one above the other
when there is gear extending more than 150m horizontally from the vessel an all round white light or a cone apex upwards in the direction of the gear

when making way through the water
sidelights
sternlight

when not engaged in fishing she shall not exhibit the lights of shapes prescribed in this rule.

28
Q

Not Under Command

A

two all round red lights in a vertical line where they can best be seen
day shape two balls or similar shapes in a vertical line where they can best be seen

when making way
sidelights
sternlight

29
Q

Restricted in ability to manoeuvre

A

three all round lights in a vertical line where they can best be seen red white red
day shape three shapes in a vertical line where they can best be seen ball diamond ball

when making way
sidelights
sternlight

30
Q

Restricted in ability to manoeuvre
engaged in dredging or Underwater operations

A

two all round red lights or two balls in a vertical line to indicate the side on which the obsruction exists
two all round green lights or two diamonds in a vertical line to indicate the side on which the other vessel may pass

31
Q

Mine Clearing Operations

A

three all round green light or three balls one of these lights or shapes shall be exhibited near the foremast head and one at each end of the fore yard
these lights indicate that it is dangerous for another vessel to approach within 1000m

32
Q

Constrained by draught

A

three all round red lights in a vertical line
day shape - cylinder

33
Q

pilot vessel engaged in pilot duty

A

two all round lights in a vertical line white over red

when underway
sidelights
stern light

34
Q

vessels at anchor

A

in the fore part an all round white light
at or near the stern and at a lower level that the fore light an all round white light for vessels over 50m
when over 100m she shall use her deck lights to illuminate their deck

35
Q

vessel aground

A

two al round red lights in a vertical line
three balls in a vertical line
in addition to anchor lights