MARL045 — Apply basic principles of naval architecture

1 Calculate shipboard areas and volumes

• 1.1Basic principal structural members of ship and proper names of various parts are detailed
• 1.2Simpson’s Rules are applied to calculate shipboard areas
• 1.3Simpson’s Rules are applied to calculate shipboard volumes

2 Calculate vessel displacement

• 2.1Tonnes per centimetre (TPC) values and Simpson’s Rules are applied to calculate vessel displacement
• 2.2Calculations are performed using TPC values and Simpson’s Rules to solve problems related to vessel displacement

3 Calculate ship dimensions

• 3.1Ship form dimensions are calculated using coefficients for areas
• 3.2Ship form coefficients for underwater volumes are calculated
• 3.3Influence of common hull modifications on hull form coefficients is explained
• 3.4Calculations are performed to solve problems of ship form coefficients following change to vessel length resulting from mid-body insertion or removal

4 Explain position of centre of gravity (CG) of vessel in relation to its keel and midships

• 4.1CG calculations for a vessel are performed
• 4.2How CG changes with redistribution, addition and/or removal of mass is explained
• 4.3How addition, removal or transfer of mass may cause overturning moments is identified
• 4.4Problems are solved involving addition, removal and vertical movement of mass by performing CG calculations for typical vessel loaded conditions
• 4.5Calculations are performed using results from inclining experiments to obtain initial stability characteristics

5 Explain effects of water density and flooding of mid-length compartment on vessel draft

• 5.1Relationship between changes in underwater volume and changes in water density is outlined
• 5.2Freshwater allowance of a vessel is determined
• 5.3Change in mean draft for vessel movement between waters of different densities is calculated
• 5.4Volume lost-volume gained relationship for flooded compartments is explained
• 5.5Calculations are performed to solve problems of mid-length compartment flooding in simple box-shaped hull forms
• 5.6Fundamental actions to be taken in the event of partial loss of intact buoyancy are identified

6 Perform calculations related to propellers and vessel speed

• 6.1Relationship between propellers and vessel speed is explained
• 6.2Problems related to vessel speed and propellers are solved by calculating theoretical, apparent and true speeds, apparent and true slips, wake speed and Taylor wake fraction
• 6.3Impact of fouling on vessel hull and propeller is outlined

7 Calculate voyage and daily fuel consumptions

• 7.1Fuel consumption is determined by applying admiralty coefficient for fuel consumption taking account of ship speed, shaft power and displacement
• 7.2Calculations are performed to solve problems of vessel fuel consumption taking account of ship speed, shaft power and displacement
• 7.3Impact of fouling on vessel fuel consumption is explained

8 Calculate pressures and loads on surfaces due to hydrostatics

• 8.1Standard formula for hydrostatic pressure is defined
• 8.2Hydrostatic load on vertical and horizontal surfaces is calculated
• 8.3Method of calculating loads on typical tank structures for different filling rates is explained

What does an assessment tool for MARL045 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MARL045 needs to address all 126 unit components: 8 elements with 29 performance criteria, 12 performance evidence requirements, 84 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for MARL045?

Auditori pulls the current release of MARL045 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

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Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of MARL045, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.