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CD7045. TOTS 1C-Navigating in Restricted Visibility

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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 — CD7045. TOTS 1C-Navigating in Restricted Visibility” contains 22 questions across 1 collection.

Learning

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Sample questions and answers

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On ships greater than 20 metres in length, the diameter of the ships bell mouth used for sound signals shall not be less than how many mm?

One correct answer

  • 300mm.✓ Correct answer
  • 250mm.
  • 350mm.
  • 275mm.
When is Rule 19 of COLREGS applicable, and to which ships?

One correct answer

  • This rule applies to vessels not in sight of one another when navigating in or near an area of restricted visibility.✓ Correct answer
  • This rule applies to all vessels sailing in an area of restricted visibility.
  • This rule applies to all power-driven vessels navigating in an area of restricted visibility.
  • This rule applies only to power-driven vessels navigating in an area of restricted visibility.
If the vessel is fitted with two whistles that are spaced apart more than 100 metres, how should the whistles be arranged?

One correct answer

  • They should be arranged so that they are not sounded simultaneously.✓ Correct answer
  • They should be arranged so that they are sounded simultaneously.
  • They should be arranged so that only one can be used at a time.
  • They should be arranged so that the forward whistle always sounds first and then the aft whistle sounds with a 10 second delay.
What sound signal should a power-driven vessel making way through the water sound during periods of restricted visibility?

One correct answer

  • One prolonged blast✓ Correct answer
  • Two prolonged blast.
  • one prolonged blast followed by two short blasts
  • Two prolonged blasts followed by one short blast.
When restricted visibility is encountered or is expected, who should be informed?

One correct answer

  • The Master.✓ Correct answer
  • The Lookout.
  • The Helmsman.
  • The Company Operator / DPA.

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