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CD0304. COLREGs, Conduct of vessels

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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 — CD0304. COLREGs, Conduct of vessels” contains 43 questions across 1 collection.

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Sample questions and answers

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A power driven vessel sees the two mast head lights in line and both side lights of another power driven vessel 15 degrees on her starboard bow. Should the vessel assume this is a “head-on” situation and expect both vessels to alter to starboard?

One correct answer

  • No, it is a crossing vessel and not a head-on situation.✓ Correct answer
  • Yes, it is a head-on situation.
  • Yes, but a small alteration to port would avoid a close quarter situation.
  • No, but because there is doubt, it can be assumed to be a head-on situation.
A power driven vessel is sighted coming towards your ship from 45 degrees on the port side. The bearing is not changing and it is getting closer and appears to be taking no action. You have sounded five or more short and rapid blasts and it still appears to be taking no action. As “stand-on” vessel can you take action under the rules at this time?

One correct answer

  • Your vessel may take action to avoid collision by her manoeuvre alone, as soon as it becomes apparent to you that the vessel required to keep out of the way is not taking appropriate action.✓ Correct answer
  • You must take substantial action altering your course to the port and give two short blasts.
  • You must take substantial action, and give one short blast and change your course to the starboard.
  • You must take substantial action and give two short blasts and change your course to the starboard.
Which of the following answers could be considered the correct immediate actions taken by bridge Officer of the Watch, when the vessel enters an area of reduced visibility? Select the ONE best answer.

One correct answer

  • Call the Master, sound the fog signal and put the engines on Standby.✓ Correct answer
  • Start the fog signal and reduce the speed to a safe speed.
  • Call the Master and wait for his arrival on the bridge.
  • Start the fog signal and call the Master.
What manoeuvring signal would a power-driven vessel give to another vessel when they are in sight of each other, when altering course to starboard?

One correct answer

  • One short blast.✓ Correct answer
  • Two short blasts.
  • Three short blasts.
  • A minimum of five short blasts.
Are there any particular rules for sailing vessels and vessels less than 20 metres in length, when they are proceeding in a narrow channel?

One correct answer

  • They should not impede the passage of a vessel that can only safely navigate within a narrow channel of fairway.✓ Correct answer
  • They should always stop and allow larger vessels to pass in the narrow channel.
  • They should always keep to the port side in a narrow channel.
  • They should not pass a vessel that can only safely navigate within a narrow channel of fairway.

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