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CD1543. WHR System, Output Maximisation

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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 — CD1543. WHR System, Output Maximisation” contains 12 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 precautions should be taken to avoid the risk of fire in the exhaust boiler? Select the appropriate options and click Done.

Multiple correct answers

  • The cooling of the boiler should be maintained at all times.✓ Correct answer
  • The exhaust gas boiler should not be run dry.✓ Correct answer
  • The boiler should be kept clean.✓ Correct answer
  • Water washing should be performed regularly.
Allen, on board the Margrethe vessel, wants to run the engine down just before the cut-in level of its auxiliary blowers. What must he remember? Select the appropriate options and click Done.

Multiple correct answers

  • He must monitor the exhaust gas temperature before and after the turbocharger.✓ Correct answer
  • He must run the engine above the cut-out level and then slowly reduce the engine power to run the engine just above the auxiliary blower cut-in level.✓ Correct answer
  • He must compare the vacuum pressure in the condenser with the design pressure.
  • He must set the load target to 100%.
David knows that the exhaust gas temperature for the Emma vessel should be 165°C or above to avoid the risk of sulphuric acid corrosion. However, as the ME load is low, the temperature of the exhaust gas is lower than 165°C. What should he do to avoid the risk of corrosion? Select the appropriate option and click Done.

One correct answer

  • Decrease the set-point pressure of the HP steam section.
  • Increase the vacuum condenser pressure.
  • Increase the set-point pressure of the LP steam section.✓ Correct answer
George, on board the Lima vessel, wants to operate the WHR system to reduce fuel costs. What should be available power from the STG for starting-up the steam turbine? Select the appropriate option and click Done.

One correct answer

  • Below 150 kW
  • 150 kW
  • Above 150 kW✓ Correct answer
Daniel uses the water washing procedure to clean a hard layer of soot on economizer fins. However, he knows that the procedure should be used only when necessary. What could be reason to avoid water washing? Select the appropriate option and click Done.

One correct answer

  • Water washing corrodes the economizer pipes and fins.✓ Correct answer
  • Water washing requires huge quantity of fresh water.
  • Water washing blocks the boiler.

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What language are the questions in?

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Can I use my result as an official document?

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