CD0341. Liquefying cargoes

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CD0341. Liquefying cargoes
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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 — CD0341. Liquefying cargoes” contains 42 questions across 1 collection.

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Which ONE of the following correctly identifies how the master should be informed that the Competent Authority has approved the shipper’s test procedures?

One correct answer

He is given a document by the shipper or the Competent Authority stating that the procedures have been approved✓ Correct answer
The shipper tells him
The charterer tells him
The shipper gives him an email statement

Which ONE of the options is the most accurate in relation to the following statement? “If moisture migrates to the bottom part of the cargo stow, and ‘wet base’ conditions arise, it can lead to a dangerous cargo shift”

One correct answer

Yes, the whole body of the cargo can slide from side to side when the ship rolls with the water acting as low-friction lubricant✓ Correct answer
No, high moisture content only leads to the upper part of the cargo sloshing back and forth
No, only liquefaction of the top surface of the cargo causes cargo shift
Yes, the bottom of the cargo can move, leaving the higher parts unsupported

If the moisture limits are exceeded in any cargo hold, once cargo loading has started, is the master allowed to suspend loading operations?

One correct answer

Yes✓ Correct answer
No

Which ONE of the following best defines the term ‘cargo liquefaction’ in relation to solid bulk cargoes?

One correct answer

When the whole body of the cargo in a hold compacts during the voyage and the cargo starts to behave like a fluid.✓ Correct answer
When leaks of water through a hatch cover cause the cargo to become wet
When a Group C dry bulk cargo shifts due to excessive rolling angles
When a Group B dry bulk cargo shifts due to excessive rolling angles

Which ONE of the following most accurately describes the action that should be taken where the ship’s master suspects that the various cargo stockpiles that are to be used for loading the ship may have varying moisture contents?

One correct answer

The master must insist that the shipper make a separate declaration for each stockpile or for the stockpile intended for each hold✓ Correct answer
No action is required as long as the average moisture content over the whole ship will be OK
Ensure that the cargo in each hold is mixed, so that the average moisture content is acceptable
The master should write a Note of Protest

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