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CD0163. Separators, The ALCAP system

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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 — CD0163. Separators, The ALCAP system” contains 29 questions across 1 collection.

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Sample questions and answers

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Which of the following statements is most favourable with regard to achieving the cleanest possible oil?

One correct answer

  • An ALCAP separator with accurate temperature control.✓ Correct answer
  • A single purifier where the temperature is fluctuating by 10 degrees C.
  • A clarifier used for lubricating oil cleaning where analysis of the oil has revealed some water in the oil.
  • A Purifier and clarifier in series where there is never a seal alarm.
  • A purifier where the gravity disc was checked by the Alfa Laval representative two weeks ago.
Clarifiers needed modification to ALCAP design because

One correct answer

  • Entrained water could enter from a number of sources.✓ Correct answer
  • New Technology was preferred.
  • The size of the machine could be reduced.
Why can the interface position be such a problem in the purifier bowl?

One correct answer

  • It is very easily affected by changes in density, viscosity temperature and flow.✓ Correct answer
  • It can be in the wrong place by fitting the wrong size gravity disc.
  • To get a good night sleep the engineer should ensure the interface is well into the disc stack.
  • It is easy to get the interface in the wrong position in a clarifier.
  • If the interface is in the disc stack the separation result will be bad.
Which of the following statements is most favourable with regard to achieving the cleanest possible oil?

One correct answer

  • An ALCAP separator with accurate temperature control.✓ Correct answer
  • A single purifier where the temperature is fluctuating by 10 degrees C.
  • A clarifier used for lubricating oil cleaning where analysis of the oil has revealed some water in the oil.
  • A Purifier and clarifier in series where there is never a seal alarm.
  • A purifier where the gravity disc was checked by the Alfa Laval representative two weeks ago.
Which of the following statements is most accurate?

One correct answer

  • Particle separation is best in an ALCAP separator because the interface is always outside the outer edge of the top disc.✓ Correct answer
  • The purifier which was commissioned by the Alfa laval engineer 2 months ago gives best particle separation.
  • The series operation of purifier and clarifier gives best particle removal.
  • The clarifier will always be better at removing particles from heavy fuel oil.

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