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.

Overview of assessment

A person who demonstrates competency in this unit must be able to apply principles of mechanics to machines, support frames, beams and related components to determine static and dynamic loads, stresses and deformations to contribute to the design and component selection process.

This includes working individually and as part of a team and recognising and complying with normal control procedures on engineering projects.

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

Assessors must be satisfied that the candidate can competently and consistently:

determine parameters and context of tasks

apply WHS, regulatory requirements, risk management and organisational procedures

confirm personal functions and responsibilities

review sustainability implications, functions and features of devices, machines and systems

assess and apply engineering mechanics principles, including use of software basic analysis and graphics skills and techniques

ensure compatibility of units in calculations

report and document results.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job then a simulated working environment must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

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

Required skills

Required skills include:

identifying parameters and context of tasks, chain of responsibility, WHS and regulatory requirements, risk management and organisational procedures

confirming personal functions and responsibilities, team and support functional group interdependencies and communications, appropriate qualifications and delegations, and appropriate support

reviewing sustainability implications, functions and features of devices, machines and systems

assessing and applying mechanics principles, software basic analysis and graphics skills and techniques to mechanical devices and systems

employing techniques to ensure clear and logical process of analysis and compatibility of units in calculations

reporting and documenting results of investigation, evaluation and application, calculations, diagrams, programs and files

Required knowledge

Required knowledge includes:

mathematical techniques, including arithmetic, algebra, trigonometry, geometry and differential calculus

definition of typical applications of mechanics, statics, dynamics, kinematics, kinetics and strength of materials

analytical, graphical, semi-graphical and software-assisted techniques for all tasks

physical quantities and dimensions, including international system of units (SI) and fundamental dimensions and units

basic principles of statics applicable to mechanical devices and systems

application of force systems applied to bodies, frames and beams

friction laws and applications in mechanical devices and systems

stress and strain:

axial stress

shear stress

bolted and welded joints

torsional stress

bending of beams

dynamics applicable to mechanical devices and systems, including:

kinematics of rectilinear motion:

displacement, velocity and acceleration

equations of rectilinear motion

equations of simple harmonic motion

uniform acceleration and sinusoidal acceleration

kinetics of rectilinear motion:

force, mass and acceleration

freely falling bodies

acceleration against resistance (accelerating force = unbalanced force)

acceleration against gravity and terminal velocity

acceleration against dry sliding friction and air resistance

forces diagrams

curvilinear motion:

normal acceleration in curvilinear motion

centrifugal force

circular motion as a particular case of curvilinear motion

kinematics of rotation:

rotational motion

angular displacement

angular velocity

angular acceleration

conversions of units of angular motion

equations of rotation with uniform acceleration

relation between linear and angular motion

kinetics of rotation:

moment of inertia, second moment of mass, concept and units

torque due to inertia compared with torque due to winding drum rope force

the law of a machine

work, energy and power

specifications for engineering hardware applicable to mechanical devices and systems

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.

Engineering mechanics tasks

Engineering mechanics tasks covered by this unit include, but are not limited to:

application of resultant loads and reactions on machines, support frames and beams

application of the torque and power required to drive translation screws and winding drums against inclined and vertically suspended loads subject to gravitation, acceleration and friction resistance loads

selecting a range of standard hardware, such as shafts, bolts and hooks, subject to plane axial or shear stresses and deformation limits

analysing bending and shear stresses in beams subject to static point and distributed loads

Motion

Motions described in this unit may be of constant velocity, constant acceleration or sinusoidal accelerations (e.g. sprung bodies). Other non-uniformly accelerated motions may be described for contrast only. This unit confines itself to 2-D plane motion

Appropriate licensed technical and professional assistance

Appropriate licensed technical and professional assistance may include:

technical support and advice relating to elements which have intrinsic dangers, such as:

high pressure

energised fluid vessels

high temperatures and heat energy capacity

wiring with high current control voltages above extra low voltage

professional support for technologies may include:

specialist electric motor drives and controllers

specialist materials, plastics, metal alloys and nano materials

special processes, foundry, alloy welding, heat treatment, sealing and fastening

WHS, regulatory requirements and enterprise procedures

WHS, regulatory requirements and enterprise procedures may include:

WHS Acts and regulations

relevant standards

codes of practice from Australian and overseas engineering and technical associations and societies

risk assessments

registration requirements

safe work practices

state and territory regulatory requirements

Analysis

Analysis may include:

static and dynamic analysis of loads

the stresses and deformations resulting

the transmitted power, torque and speed

graphical and mathematical methods and software options