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CD0303. COLREGs, Lights, shapes and sound signals

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About this collection

The Seagull CBT bank is organised into modules covering safety, shipboard operations, maintenance and other topics. Original module names and codes are retained to help you find the topic you need.

“Seagull CBT — CD0303. COLREGs, Lights, shapes and sound signals” contains 50 questions across 1 collection.

Learning

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Exam

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Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

What manoeuvring signal would a power-driven vessel give to another vessel when they are in sight of each other, when going astern on the engines?”

One correct answer

  • Three short blasts on the whistle.✓ Correct answer
  • One short blast on the whistle.
  • Two short blasts on the whistle.
  • Five short and rapid blasts on the whistle.
A vessel is seen showing two black balls on one side; two black diamonds on the other side of the vessel and also three shapes in a vertical line, the upper and lower black balls and the middle one a diamond. Which is the correct side to pass this vessel?

One correct answer

  • The side which displays the two diamond shapes is the side it is safe to pass.✓ Correct answer
  • The side which displays the two balls is the side it is safe to pass.
  • Other vessels should pass well clear of either side and avoid passing within 100 metres of the other vessel.
  • It doesn’t matter on which side a vessel passes the vessel as long as it is done at a slow safe speed.
You are Officer of the Watch and you are approaching a bend in a narrow channel, where you can not see round the bend. What action should you take?

One correct answer

  • You should give one long blast on the whistle.✓ Correct answer
  • You should give one short blast on the whistle.
  • You should give two short blasts on the whistle.
  • You should give three short blasts on the whistle.
Which of the following vessels is considered “restricted in her ability to manoeuvre”?

One correct answer

  • None of these✓ Correct answer
  • A vessel sailing in a Traffic Separation Scheme
  • A vessel engaged in towing and showing only the conventional towing lights.
  • A vessel stopped and making no way through the water.
You are officer of the watch and you are approaching a bend in a narrow channel, where you can not see round the bend and you sound one long blast on the whistle. What action would you expect an approaching vessel on the other side of the bend to answer to your signal?

One correct answer

  • It should answer with one long blast on the whistle.✓ Correct answer
  • It should answer with one short blast on the whistle.
  • It should answer with two short blasts on the whistle.
  • It should answer with one long one short one long and one short blast on the whistle.

Before you start

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Can I use my result as an official document?

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