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ITRPCS | Collision Regulations > Part C - Lights and Shapes > Flashcards

Part C - Lights and Shapes Flashcards

1
Q

What are the arcs of; masthead, sidelight, sternlight, towing light, all-round light?

A
  • Masthead light - 225 degrees, 22.5 degrees abaft the beam.
  • Sidelight - 112.5 degrees, 22.5 degrees abaft the beam
  • Sternlight - 135 degrees, 67.5 degrees aft to each side
  • Towing light (yellow) - 135 degrees
  • All-round light - 360 degrees
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2
Q

What are the visibility characteristics for a vessel 50m or more in length?

A
  • Masthead - 6 miles
  • Sidelight - 3 miles
  • Sternlight - 3 miles
  • Towing light (yellow) - 3 miles
  • All-round - 3 miles
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3
Q

What are the visibility characteristics for a vessel 12m and less than 50m in length?

A
  • Masthead - 5 miles (3 miles less than 20m)
  • Sidelight - 2 miles
  • Sternlight - 2 miles
  • Towing light (yellow) - 2 miles
  • All-round - 2 miles
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4
Q

What are the visibility characteristics for a vessel less than 12m in length?

A
  • Masthead - 2 miles
  • Sidelight - 1 miles
  • Sternlight - 2 miles
  • Towing light - 2 miles
  • All-round - 2 miles
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5
Q

What are the visibility characteristics and colour for an inconspicuous, partly submerged or objects being towed?

A
  • All-round white light - 3 miles
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6
Q

Rule 23 (part C) - WIG Craft

A

A WIG craft when taking off, landing and in flight near the surface shall, in addition to the lights prescirbed for power-driven vessel, shal exhibit a high intensity all-round flashing red light.

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7
Q

Rule 23 (part C) - Power-driven vessel less than 12m

A

In lieu of the lights prescribed in this rule exhibit all-round white light and sidelights.

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8
Q

Rule 23 (part C) - Power-driven vessel less than 7m and maximum speed does not exceed 7kts.

A

In lieu of the lights prescribed in this rule exhibit all-round white light and if practicable, also exhibit sidelights.

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9
Q

Rule 23 (part C) - Power-driven vessel less than 12m masthead or all-round white light.

A

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

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10
Q

Rule 24 - Towing and Pushing power-driven vessel

A
  • Two masthead lights in a vertical line
  • Length of tow exceeds 200m three masthead lights in a vertical line and diamond shape during day light hours.
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11
Q

Rule 24 - Towing and Pushing, a vessel or object

A
  • Sidelights
  • Sternlight
  • Length of tow exceeds 200m a diamond shape
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12
Q

Rule 24 - Towing and Pushing, an inconspicuous or partly submerged vessel or object

A
  • Less than 25m breadth one all-round white liught forward end and one near after end
  • More then 25m in breadth two additional all-round white lights at or near the extremities of its breadth
  • If exceeds 100m in length additional all-round white lights between lights prescribed above so distance between lights does not exceed 100m
  • Diamond shape at after end of submerged vessel or object being towed, if exceeding 200m an additional diamond shape.
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13
Q

Rule 25 - Sailing Vessels underway and vessels under oars, sailing vessels

A
  • Sidelights and stern light
  • May exhibit in addition, two all-round lights in a vertical line, upper being red and the lower green. Cannot be exhibited with combined lantern
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14
Q

Rule 25 - Sailing Vessels underway and vessels under oars, sailing vessels less than 7m length

A
  • If cannot display lights prescribed, she shall have a torch or lantern showing white light
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15
Q

Rule 25 - Sailing Vessels underway and vessels under oars, under oars

A
  • If cannot display lights prescribed, she shall have a torch or lantern showing white light
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16
Q

Rule 26 - Fishing Vessels, engaged in fishing

A

A vessel engaged in fishing, whether underway or at anchor, shall exhibit only the lights and shapes precribed in this rule.

17
Q

Rule 26 - Fishing Vessels, engaged in trawling

A
  • Two all-round lights in a vertical line, upper being green and the lower white.
  • Shape consisting of two cones with apexes together in a vertical line one above the other.
  • Masthead light abaft of and higher than the all-round green light. A vessel less than 50m shall not be obliged to exhibit such a light but may do so.
  • When making way, sidelights and a sternlight.
18
Q

Rule 26 - Fishing Vessels, engaged in fishing other than trawling

A
  • Two all-round lights in a vertical line, upper being red and the lower white
  • Shape consisting of two cones with apexes together in a vertical line one above the other.
  • When there is outlying gear extending more than 150m horizontally from the vessel, and all -round white light, or a cone apex upwards in the direction of the gear
  • When making way, sidelights and a sternlight.
19
Q

Rule 26 - Fishing Vessels, not engaged in fishing

A

When not engaged in fishing she shall not exhibit lights or shapes prescribed in this rule but only for a vessel of her length.

20
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: vessel not under command shall exhibit

A
  • Two all-round red lights in a vertical line
  • Two balls in a vertical line
  • When making way through the water, sidelights and stern light
21
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: vessel restricted in her ability to manoeuvre, except vessel engaged in mine clearance operations, shall exhibit

A
  • Three all-round red lights in a vertical line, Highest and lowest of these shall be red, the middle a white light
  • Highest and lowest shall be balls, the middle a diamond shape, in a vertical line
  • When making way through the water, masthead light(s), sidelights and stern light in addition to the above.
  • When at anchor, lights and shapes presrcibed in rule 30.
22
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: power-driven vessel engaged in towing operation

A
  • If towing operation severely restricts the towing vessel and ability to deviate from course, shall exhibit lights and shapes for a vessel Restricted in her ability to manoeuvre.
23
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: vessel engaged in dredging or underwater operations.

A
  • Lights and shapes for resricted in her ability to manoeuvre
  • Two all-round red lights or balls in vertical line on side of obstruction
  • Two all-round green lights or diamonds in a vertical line on side in which it is clear to pass
  • At anchor the lights as above, not as prescribed by rule 30
24
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: vessel engaged in diving operations.

A
  • Three all-round lights in a vertical line, the highest and lowest sahll be red, the middle white
  • Code A flag, not less than 1m in height, must be visible
25
Q

Rule 27 - Vessels not under Command or Restricted in their Ability to Manoeuvre: vessel engaged in mine clearance operations

A
  • In addition to lights for power-driven vessel, three all-round green lights or three balls
  • One light near foremast, and one each end of fore yard
  • Dangerous to approach within 1000m
26
Q

Rule 28 - Vessel Constrained by their Draught

A
  • In addition to power-driven vessel, exhibit three all-round red lights in a vertical line, or a cylinder.
27
Q

Rule 29 - Pilot Vessels

Vessel engaged in pilot duties

A
  • At the masthead two all-round lights in a vertical line, upper being white and the lower red
  • Underway, sidelights and sternlight
  • At anchor, rule 30
28
Q

Rule 29 - Pilot Vessels

Vessel not engaged in pilot duties

A
  • Exhibit lights and shapes prescribed for similar vessel of her length.
29
Q

Rule 29 - Pilot Vessels

Vessel not engaged in pilot duties

A
  • Exhibit lights and shapes prescribed for similar vessel of her length.
30
Q

Rule 30 - Anchored Vessels and Vessels Aground

Vessel at anchor, less than 50m, 50m to 100m

A
  • Fore part an all-round white light or ball
  • Near the stern at a lower level than the light in the forepart, an all round white light
  • Vessel less than 50m in length may exhibit an all-round white light where it can best be seen instead of the lights prescribed above.
31
Q

Rule 30 - Anchored Vessels and Vessels Aground

Vessel at anchor over 100m

A
  • Fore part an all-round white light or ball
  • Near the stern at a lower level than the light in the forepart, an all round white light
  • Vessel over 100m shall use the available working lights to illuminate her decks.
32
Q

Rule 30 - Anchored Vessels and Vessels Aground

Vessel aground

A
  • Anchor lights according to vessel length
  • Two all-round red lights in a vertical line
  • Three balls in a vertical line
33
Q

Rule 31 - Seaplanes

A

Where it is impracticable for a seaplane or a WIG craft to exhibit lights and shapes of the characteristics or in the positions prescribed in the Rules of this Part she shall exhibit lights and shapes as closely similar in characteristics and position as is possible.

ITRPCS | Collision Regulations (17 decks)

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