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 (A)</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 (A)</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 (A)</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 (B)</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. (D)</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. (C)</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. (A)</p> Signup and view all the answers

Flashcards

What should you do in a fog?

To signal presence and reduce speed when within hearing range of another vessel's fog signal.

When two ships are in a ‘locked’ collision, what should not always be done?

In a collision, avoid drastic changes to your course.

Who is prohibited from impeding traffic in a traffic separation scheme?

Smaller vessels are prohibited from slowing down or obstructing larger vessels within a designated traffic lane.

What action should be taken in the event of a collision in foreign waters?

If practical, you are required to notify the relevant authorities in the country where the collision occurs.

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

When visibility permits, maintain your course and speed, especially in open waters.

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What is NOT the responsibility of the MASTER in case of a collision?

The MASTER, or Captain, should prioritize immediate safety and crew care, not drastic course changes.

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What provision can be made by any State regarding vessels?

Governments can establish their own set of additional horn signals to communicate between vessels.

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What does Rule 19 require of a vessel when it hears a fog signal?

To acknowledge the presence of another vessel in a fog, vessels must respond with their own fog signal.

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What is the required action when seeing two black balls?

Do not alter course upon seeing two black balls displayed vertically on another vessel.

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When should a vessel avoid impeding safe passage in a traffic separation scheme?

Vessels shorter than 20 meters in length should not impede the flow of traffic in designated traffic lanes.

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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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