Required skills

draw velocity distribution curves for fluids in pipes or channels with both laminar flow and turbulent flow

use the Moody diagram

use data to determine the value of roughness

use simple equations for determining pipe friction with their appropriate application

calculate head losses in noncircular pipes

calculate minor energy losses associated with enlargements contractions valves fittings and bends

calculate the flow in a pipe using data regarding minor energy losses

use AS for calculating minor losses

apply flow formulae to different open channel crosssections in developing the proportions for an economic section

calculate the flow in pipelines

calculate the gradual varied flow profiles in uniform channels when the discharge is known

use analytical tools and formulae

interpret and apply technical documentation to the collection analysis and reporting of hydrometric data

identify potential or actual operational problems

use computer systems

use recording and reporting systems

Required knowledge

application of matrix algebra to systems of linear equations

graphical and algebraic methods for solving systems of linear quadratic exponential logarithmic and trigonometric equations

principles of fluid statics fluid dynamics and hydraulic mechanics

Pascals Law and hydrostatic effect on submerged surfaces

distinction between laminar and turbulent flow

HagenPoisseulle equation

DarcyWeisbach equation

Bernoulliis equation

the effect of velocity variation on velocity head

equations for calculating the approximate value of the friction factor

smooth and rough wall turbulent flow

minimise pipeline losses

the characteristics of flow through notchesweirs including the use of these in channel flow measurement

sampling and testing procedures

policies and standard operating procedures

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

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

calculating energy in pipe flows

calculating hydraulic and energy gradient for pipelines

calculating flow in open channels

calculating flows through notches and weirs

calculating proportions for an economic section

Context of and specific resources for assessment

Access to the workplace and resources including

documentation that should normally be available in a water industry organisation

relevant codes standards and government regulations

Where applicable physical resources should include equipment modified for people with disabilities

Access must be provided to appropriate learning andor 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

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice

a decision of competence should only be made when the assessor has complete confidence in the persons competence over time and in various contexts

all assessment that is part of a structured learning experience must include a combination of direct indirect and supplementary evidence

where assessment is for the purpose of recognition RCCRPL the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated projectbased activity and must include evidence relating to each of the elements in this unit

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

Standard processes and software may include:

Flow conditions will include:

Charts include:

Roughness coefficients include:

Methods used for measuring flows include:

Formulae for calculating flows includes:

Characteristics of open channels include:

Meters include:

Characteristics of notches and weirs will include:

Hydraulic principles will include: