Navigation Lights Definitions
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What type of light arrangement is required for a vessel engaged in trawling at night?

  • No lights are required for a vessel engaged in trawling at night
  • A masthead light abaft of and higher than the all-round green light
  • Two all-round lights in a vertical line, the upper being green and the lower white (correct)
  • Two all-round lights in a vertical line, the upper being red and the lower white

    • How often must a vessel engaged in fishing operations, other than trawling, sound a signal in restricted visibility?

  • At intervals of not more than 3 minutes
  • At intervals of not more than 2 minutes (correct)
  • No sound signals are required for a vessel engaged in fishing operations, other than trawling, in restricted visibility
  • At intervals of not more than 1 minute

    • What shape must a vessel engaged in trawling display during the day?

  • Two cones with their apexes together in a vertical line one above the other (correct)
  • A single cone with the apex upwards
  • No shape is required to be displayed by a vessel engaged in trawling during the day
  • A single cone with the apex downwards

    • What type of light arrangement is required for a vessel engaged in fishing, other than trawling, at night?

    <p>Two all-round lights in a vertical line, the upper being red and the lower white</p> Signup and view all the answers

    What is the minimum length of a vessel engaged in trawling that is required to exhibit a masthead light abaft of and higher than the all-round green light?

    <p>50 m</p> Signup and view all the answers

    What lights should a power-driven vessel of 12 m or more in length display?

    <p>Masthead light forward, second masthead light abaft or sidelights, sternlight</p> Signup and view all the answers

    What should a power-driven vessel do when making way through the water in restricted visibility?

    <p>Sound one prolonged blast at intervals of not more than 2 minutes</p> Signup and view all the answers

    What should a power-driven vessel underway but stopped and making no way through the water do in terms of sound signals?

    <p>Sound two prolonged blasts in succession with an interval of about 2 seconds between them</p> Signup and view all the answers

    In a power-driven vessel of less than 20 m in length, where can the sidelights be combined?

    <p>On the fore-and-aft centre line of the vessel</p> Signup and view all the answers

    What should a vessel do when at anchor according to the text?

    <p>Ring the bell rapidly for about 5 seconds</p> Signup and view all the answers

    What is the meaning of the term 'sternlight'?

    <p>A white light showing an unbroken arc of 135 degrees from the stern</p> Signup and view all the answers

    What are the characteristics of a 'towing light'?

    <p>A yellow light having the same characteristics as the 'sternlight'</p> Signup and view all the answers

    What is the meaning of the term 'all-round light'?

    <p>A light showing an unbroken light over an arc of the horizon of 360 degrees</p> Signup and view all the answers

    What is the meaning of the term 'flashing light'?

    <p>A light flashing at regular intervals of 120 flashes or more per minute</p> Signup and view all the answers

    What is the meaning of the term 'short blast'?

    <p>A blast of about one second's duration</p> Signup and view all the answers

    What is the requirement for sidelights on vessels less than 20 meters in length?

    <p>Sidelights must be fitted with inboard matt black screens to meet 'Horizontal Sectors' requirements</p> Signup and view all the answers

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