Sound Signals Quiz
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Questions and Answers

What should a vessel do when it hears a fog signal forward of the beam?

  • Make a substantial course alteration
  • Reduce speed to reply with its own fog signal (correct)
  • Attempt to make radio contact
  • Go full astern
  • In the event of a collision where ships are locked together, what action should not always be taken?

  • Steerage way
  • Sound tanks
  • Attempt to make radio contact
  • Make a substantial course alteration (correct)
  • In a traffic separation scheme, which vessels are prohibited from impeding the passage of other vessels?

  • A power-driven vessel following a traffic lane
  • A vessel engaged in fishing
  • A sailing vessel of less than 20 meters in length (correct)
  • A vessel crossing the traffic separation scheme
  • What action is required if your ship is in collision in the waters of a foreign nation?

    <p>Inform the appropriate authorities if practicable</p> Signup and view all the answers

    When seeing lights right ahead at medium range in open waters, what should be done?

    <p>Maintain course and speed</p> Signup and view all the answers

    Which action is NOT part of the responsibility of the MASTER in case of a collision?

    <p>Make a substantial course alteration</p> Signup and view all the answers

    According to Collision Regulations, what provision can be made by the Government of any State between vessels?

    <p>Use of additional horn signals</p> Signup and view all the answers

    'Rule 19' requires a vessel hearing a fog signal forward of the beam to:

    <p>Sound its own fog signal in response.</p> Signup and view all the answers

    What is the required action when two black balls are seen in a vertical line on another vessel?

    <p>Avoid altering course.</p> Signup and view all the answers

    When should a vessel avoid impeding the safe passage of other ships in a traffic separation scheme?

    <p>If less than 20 meters in length.</p> Signup and view all the answers

    Study Notes

    Whistle Signals

    • Whistle signals: 5 or more short blasts, rapid blasts, or a combination of both to signal warning or danger
    • Sound pressure level of a whistle: at least 130 dB at 1 meter
    • Audibility range of a whistle: at least 2 miles in still air and still water

    COLREGS (International Regulations for Preventing Collisions at Sea)

    • Annex I: vertical separation of masthead lights on a power-driven vessel
    • Annex III: whistle signals, sound pressure levels, and audibility ranges
    • Annex IV: firing of a gun at 1-minute intervals indicates a vessel is in distress

    Lights and Shapes

    • Sidelights of a vessel 20 meters or more in length: fitted with screens
    • Minimum intensity of sidelights: 1° and 3° outside the prescribed sector
    • Vessels engaged in fishing with purse seine gears: exhibit two yellow lights in a vertical line
    • Good seamanship: considering dangers of navigation and collision, and special circumstances
    • "Underway" means a vessel is not at anchor or made fast to the shore
    • Safe speed: related to prevailing circumstances and conditions

    Traffic Separation Schemes

    • Vessels engaged in fishing shall not impede the passage of a power-driven vessel following a traffic lane
    • Vessels of less than 20 meters in length or sailing vessels shall not impede the safe passage of a vessel following a traffic lane

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    Description

    Test your knowledge on sound signals used in maritime and emergency situations. This quiz covers different types of short and long blasts from whistles, fog horns, and guns.

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