Modification History
Not applicable.
Unit Descriptor
Unit descriptor |
This unit describes the competencies required to use hydraulic principles and calculations of theoretical flows. An understanding of the processes required to collect data accurately, interpret data, verify data and apply theoretical techniques to produce flow data are essential to performance. |
Application of the Unit
Application of the unit |
This unit covers generic competency for a range of technical and operational work roles in water flow calculations. |
Licensing/Regulatory Information
Not applicable.
Pre-Requisites
Not applicable.
Employability Skills Information
Employability skills |
This unit contains employability skills. |
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
1 Calculate energy losses in pipe flow . |
1.1 Review measurements and compare against expected trends. 1.2 Use standard processes and software to check, edit, verify and audit data. 1.3 Use standard processes to identify, estimate, adjust and justify data and review inconsistent data on flow conditions . 1.4 Prepare records in a format suitable for dissemination. |
2 Calculate hydraulic and energy gradient for pipelines . |
2.1 Prepare pipeline design charts using standard formulae. 2.2 Identify the limitations of formulae. 2.3 Identify variations in roughness coefficients . 2.4 Calculate the pressure in pipeline systems using the hydraulic gradient line. 2.5 Calculate the pipe discharge from reservoirs. |
3 Calculate flow in open channels . |
3.1 Identify the methods used for measuring flows in open channels. 3.2 Use the formulae for calculating flows in open channels. 3.3 Distinguish the characteristics of open channels . 3.4 Distinguish the uses of different measuring instruments and devices used in open channels 3.5 Assess the hydraulic principles which apply to different meters . 3.6 Identify the limitations of the meters. |
4 Calculate flows through notches and weirs . |
4.1 Identify the methods used for measuring flows in notches and weirs. 4.2 Use the formulae for calculating flows in notches and weirs. 4.3 Distinguish the applications and characteristics of notches and weirs . 4.4 Distinguish the uses of different measuring instruments and devices used for notches and weirs. 4.5 Assess the hydraulic principles which apply to different meters. 4.6 Identify the limitations of the meters. |
5 Calculate proportions for an economic section . |
5.1 Calculate the proportions of rectangular, trapezoidal and circular channels for maximum discharge. 5.2 Use a partial flow chart to identify the depth of flow for maximum discharge and maximum velocity. |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
This section describes the skills and knowledge required for this unit. |
Required skills :
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Required knowledge :
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Evidence Guide
EVIDENCE GUIDE |
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The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
The candidate should demonstrate the ability to use a range of hydraulics principles and calculations of theoretical flows including:
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Context of and specific resources for assessment |
Access to the workplace and resources including:
Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required. Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed. Validity and sufficiency of evidence requires that:
Questioning will be undertaken in a manner appropriate to the skill levels of the operator, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed. |
Range Statement
RANGE STATEMENT |
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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. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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Standard processes and software may include: |
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Flow conditions will include: |
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Charts include: |
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Roughness coefficients include: |
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Methods used for measuring flows include: |
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Formulae for calculating flows includes: |
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Characteristics of open channels include: |
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Meters include: |
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Characteristics of notches and weirs will include: |
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Hydraulic principles will include: |
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Unit Sector(s)
Not applicable.
Competency field
Competency field |
Hydraulics |