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QUESTION 8.99.7

Loading limitations

Oil, Chemical, LPG, LNGCargo Control Room

What is being checked

The inspector is checking whether the vessel's arrangements for control of vessel-specific loading restrictions and intact-stability concerns are planned, understood and executed using vessel-specific limits, verified line-up, effective communication and traceable records.

Ready onboard

0/6 complete

Practice questions

Answer aloud, then open the preparation point.

1What are the critical controls for control of vessel-specific loading restrictions and intact-stability concerns?

Explain the vessel-specific sequence, limits and safeguards for slack-tank limits, free-surface effect, structural loading, sloshing, minimum draft, propeller immersion, trim, visibility and cargo-sequence restrictions.

2How was the line-up independently verified?

Identify both verifiers, the physical route checked, valve-position confirmation and the record completed before starting.

3What conditions require the operation to stop?

Stop for loss of communication, unexpected pressure or level, leakage, alarm, incorrect line-up or any of these specific failures: prohibited slack condition, excessive free surface, structural limit, inadequate draft, poor propeller immersion, unsafe trim or undocumented restriction.

4Show the most recent complete operation.

Trace the plan through approved stability information, loading-manual restrictions, loading-computer stages, cargo plan and company guidance, including any deviation and its authorisation.

5What is the first response to an abnormal condition?

Stop or stabilise the operation, raise the alarm, isolate the source where safe, verify tank and system condition and coordinate with the terminal and Master.

Where an observation may arise

PROCEDURE GAP

The vessel procedure did not adequately address slack-tank limits, free-surface effect, structural loading, sloshing, minimum draft, propeller immersion, trim, visibility and cargo-sequence restrictions.

GENERIC PLAN

The plan was copied or did not reflect the actual cargo, tank condition, terminal limits or equipment status.

LINE-UP ERROR

A critical valve or connection was not independently checked, or the recorded position conflicted with the physical system.

KNOWLEDGE GAP

Responsible personnel could not explain their limits, monitoring duty, communications or stop-work authority.

RECORD CONFLICT

The plan, log or checklist could not be reconciled with approved stability information, loading-manual restrictions, loading-computer stages, cargo plan and company guidance.

ABNORMALITY UNCONTROLLED

The response did not adequately control prohibited slack condition, excessive free surface, structural limit, inadequate draft, poor propeller immersion, unsafe trim or undocumented restriction.

Master's practical note

Use the latest real operation, not a model checklist. Follow one critical parameter from the agreed plan to the CCR display, deck condition and final record.

Equipment boundary and references

Equipment boundary: Apply the vessel's approved cargo manuals, cargo-specific data, terminal agreement and company limits. Do not operate cargo equipment solely to demonstrate it during an inspection.

References

  • OCIMF SIRE 2.0 Question Library Part 2, Version 1.0, Question 8.99.7
  • SOLAS Chapter II-1
  • Approved Loading Manual
  • IMO IBC or IGC Code as applicable

Last reviewed: 2026-09-14