Unit Assessment Document D/506/6560©MPQC July 2010

Unit Number / D/506/6560
Title / Discharge Marine Aggregates from a Vessel
Level / 2
Credit Value / 12
Learning outcomes:
The learner will: / Assessment criteria
The learner can:
1. Be able maintain personal
health, safety and
environmental standards on
board a vessel / 1.1 Verify that the vessel is correctly positioned/secured and the discharge equipment correctly deployed
for safeand efficient discharge
1.2 Confirm or ensure that discharge equipment is checked and safe to start
1.3 Confirm that approval has been given for the discharge method to commence; for at least one of the
following:
  • Hydraulic discharge
  • Dry discharge
  • Bottom dumping
1.4 Start discharge according to equipment specification within safe operating parameters
1.5 Monitor aggregates discharge for quality and discharge equipment performance
1.6 Communicate with third parties on the progress of the discharge operation as appropriate to the work
activityand location (e.g. material receiver; other dredgers; other vessels; port authorities; other
persons or organisations)
1.7 Adjust discharge rate and discharge point to optimise off-load
1.8 Shut down discharge equipment
1.9 Verify discharge equipment recovery
1.10 Verify discharge equipment is secured and checked
1.11 Report and record according to organisational procedures
1.12 Carry out all work activities in accordance with approved policies, procedures and practices (legal,
health &safety, environmental, organisational and operational) as appropriate to the work activity
2. Understand how to
maintain personal health,
safety and environmental
standards on board a vessel / 2.1 Describe the manufacturer’s instructions and organisational procedures for checking, starting,
operating and shutting down discharge equipment in relation to one of the following:
  • Conveyors
  • Bucketwheel unloaders
  • Scraperbuckets
  • Grabs
  • Pumps
2.2 Outline the key aspects of the different types of discharge equipment not covered in 2.1
2.3 Outline the application of the different discharge methods listed below:
  • Hydraulic discharge
  • Dry discharge
  • Bottom dumping
2.4 State the hazards and risks associated with discharging marine aggregates
2.5 State the operational limits of the discharge method and equipment used
2.6 Describe how to monitor the discharge equipment operation, discharge rate, and build-up of
dischargedaggregate
2.7 Explain how and why to adjust aggregate flow and discharge point
2.8 Describe the factors which affect aggregate flow rates, their influence on the flow rate and how they
arecontrolled/adjusted
2.9 Describe the problems that can occur with the discharge method and equipment used
2.10 Outline the methods and reasons to communicate with third parties, including:
  • Aggregate receivers
  • Other dredgers
  • Other vessels
  • Port authorities
  • Other persons
  • Other organisations
2.11 State the actions to be taken in the event of equipment breakdown
2.12 State the actions to be taken in the event of vessel movement outside prescribed limits for the
operation
2.13 Describe the shutdown procedures in routine and emergency situations
2.14 Outline the conditions that could affect vessel stability
2.15 Describe how and why to check and secure discharge equipment after discharge
2.16 Outline the limits of your personal responsibility and authority
2.17 Describe the actions to be taken with problems outside own responsibilities or authority
2.18 Describe key aspects of the approved policies, procedures and practices for the work activity with
specific
reference to:
  • Legal requirements
  • Health & Safety requirements
  • Environmental requirements
  • Organisational requirements
  • Operational requirements

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