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CD0033. Stability

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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 — CD0033. Stability” contains 29 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.

A tank on a vessel can hold 100 tonnes of FW when full. How many tonnes of liquid (Relative density 0.5) could it take when full? Select the ONE correct answer.

One correct answer

  • 200 tonnes.
  • 50 tonnes✓ Correct answer
  • 100 tonnes
  • 150 tonnes
The ships own derrick is used to discharge a heavy weight from the centreline of deck to the jetty. At what instant does the most dangerous situation occur with respect to the ships effective stability? Select the ONE correct answer.

One correct answer

  • When the weight is lifted off the deck.
  • When the weight is landed on the jetty
  • When the weight is being swung over towards the jetty
  • When the weight is swung out over the jetty and starts to be lowered✓ Correct answer
Why can the draught amidships not be used to extract the value of displacement from the displacement table? Select the ONE correct answer.

One correct answer

  • The displacement is not dependent on the draught
  • The draught amidships is not the true mean draught✓ Correct answer
  • The draught amidships is not the mean of the draughts at the forward and after perpendiculars
  • The arithmetical mean of the end draughts should be used to determine correct displacement.
A ship with a large Transverse GM will have which ONE of the following rolling periods? Select the ONE correct answer.

One correct answer

  • Very slow and to large angles of heel.
  • Fast and to small angles of heel✓ Correct answer
  • A moderately comfortable period with medium angles of heel
  • Slow period of roll either side of an angle of loll.
How can the adverse effects of Free Surface on a ship be reduced by a ship’s officer? Select the TWO best answers.

Multiple correct answers

  • Loading more ballast and increasing the displacement
  • Transferring ballast from high tank to a low tank
  • The pressing up of the liquid within any slack tanks✓ Correct answer
  • The draining of the liquid from any slack tanks✓ Correct answer

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No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.