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CD0601. Vapor Control Systems

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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 — CD0601. Vapor Control Systems” contains 19 questions across 1 collection.

Learning

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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.

When the liquid level in the cargo tank rises, the vapors are forced into the barge’s collection piping. This is referred to as:

One correct answer

  • Positive pressure✓ Correct answer
  • Negative pressure
  • Inverse pressure
Which of these statements about normal cargo transfer operations is true?

One correct answer

  • Observe the cargo liquid level by opening the tank hatch.
  • Slow the cargo flow when the cargo level reaches the red color on the gauge stick.
  • Stop the cargo flow when the liquid approaches the bottom edge of the prescribed top-off in the last tank.✓ Correct answer
  • Disconnect the hoses and power cable after disconnecting the bonding cable.
Over-pressurization occurs when:

One correct answer

  • The vapors leave the cargo tank more quickly than the liquid enters.
  • The vapor pressure in the cargo tanks or dock facilities builds to excessive levels due to a slow loading rate.
  • The vapors leave the cargo tank more slowly than the liquid enters.✓ Correct answer
Vapors that vent directly into the air pose hazards to:

One correct answer

  • Personnel
  • The environment
  • Personnel and the environment✓ Correct answer
After a dock automatic shutdown, it is OK to resume transfer operations:

One correct answer

  • When dock operations appear to be back to normal.
  • When the dispatcher gives the OK.
  • When the reason for the shutdown is known and corrected and the information has been passed on to the dispatcher.✓ Correct answer

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