The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, the required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements, Performance Criteria, Required Skills, Required Knowledge and include:

making accurate and reliable calculations

solving problems using appropriate laws and principles.

Context of and specific resources for assessment

Performance is demonstrated consistently over time and in a suitable range of contexts.

Resources for assessment include access to:

industry-approved marine operations site where intermediate principles of naval architecture can be applied

vessel diagrams and specifications and other information required for mathematical calculations related to shipboard areas and volumes, vessel displacement, centre of gravity, vessel speed, fuel consumption, vessel stability, power and symmetrical flooding

technical reference library with current publications on naval architecture

tools, equipment and personal protective equipment currently used in industry

relevant regulatory and equipment documentation that impacts on work activities

range of relevant exercises, case studies and/or other simulated practical and knowledge assessments

appropriate range of relevant operational situations in the workplace.

In both real and simulated environments, access is required to:

relevant and appropriate materials and equipment

applicable documentation including workplace procedures, regulations, codes of practice and operation manuals.

Method of assessment

Practical assessment must occur in an:

appropriately simulated workplace environment and/or

appropriate range of situations in the workplace.

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate to this unit:

direct observation of the candidate applying intermediate principles of naval architecture

direct observation of the candidate applying relevant WHS/OHS requirements and work practices.

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended.

In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge.

Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate.

Required Skills:

Assess own work outcomes and maintain knowledge of current codes, standards, regulations and industry practices

Explain intermediate principles of naval architecture

Identify and apply relevant mathematical formulas and techniques to solve problems related to speed, fuel consumption and stability of commercial vessels

Identify and interpret numerical and graphical information, and perform mathematical calculations related to shipboard areas and volumes, vessel displacement, ship dimensions, centre of gravity, vessel speed and fuel consumption

Identify, collate and process information required to perform calculations related to speed, fuel consumption and stability of commercial vessels

Impart knowledge and ideas through oral, written and visual means

Read and interpret written information needed to perform calculations related to the seaworthiness of commercial vessels

Use calculators in performing mathematical calculations

Required Knowledge:

Admiralty and fuel coefficients

Buoyancy

Centre of gravity:

KG, VCG and LCG

calculations

Density correction formula

Displacement

Draught alterations

Fuel consumption calculations

Hydrostatic pressure

Metacentre

Principle of displacement

Propellers and powering

Ship:

displacement

measurements

stability

stability calculations

Shipboard areas

Shipboard volumes

Simpson’s Rules

Structural members of a ship and the proper names of various parts

Symmetrical flooding

Tonnes per centimetre immersion (TPC)

Traverse stability

Trim and stress tables, diagrams and stress calculating equipment

Vessel speed calculations

Watertight integrity

Work health and safety (WHS)/occupational health and safety (OHS) requirements and work practices

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below.

Shipboard areas may include:

Bulkheads

Elemental areas

Water planes

Coefficients of form may include:

Block coefficient

Midship section area coefficient

Prismatic coefficient

Waterplane area coefficient

Centre of gravity refers to:

Centre of gravity (KG)

Longitundal centre of gravity (LCG)

Vertical centre of gravity (VCG)

Speed of advance includes:

Apparent and true slips

Taylor Wake Fraction

Theoretical, apparent and true speeds

Wake speed

Related powers includes:

Delivered

Effective

Indicated

Shaft

Thrust

Hull resistance includes:

Frictional

Residuary

Total