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Evidence Guide: UEENEEJ131A - Determine noise and vibration encountered in HVAC/R applications

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEENEEJ131A - Determine noise and vibration encountered in HVAC/R applications

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to determine noise and vibration encountered in HVAC/R applications

  1. OH&S procedures for a given work area are obtained and understood
  2. OH&S risk control work preparation measures and procedures are followed.
  3. The nature of the problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.
  4. Advice is sought from the work supervisor to ensure the work is coordinated effectively with others.
  5. Sources of equipment and products that may be required for the work are established in accordance with established procedures.
  6. Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety
OH&S procedures for a given work area are obtained and understood

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

OH&S risk control work preparation measures and procedures are followed.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The nature of the problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Advice is sought from the work supervisor to ensure the work is coordinated effectively with others.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Sources of equipment and products that may be required for the work are established in accordance with established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine noise and vibration encountered in HVAC/R applications

  1. OHS risk control work measures and procedures are followed.
  2. The need to test or measure active systems is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures
  3. Systems are checked as being isolated where necessary in strict accordance OHS requirements and procedures
  4. Established methods are used to determine noise and vibration measurements encountered in HVAC/R application
  5. Unexpected situations are dealt with safely and with the approval of an authorised person.
  6. Measurements are taken without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices with the minimum waste and rework.
OHS risk control work measures and procedures are followed.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The need to test or measure active systems is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Systems are checked as being isolated where necessary in strict accordance OHS requirements and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Established methods are used to determine noise and vibration measurements encountered in HVAC/R application

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Unexpected situations are dealt with safely and with the approval of an authorised person.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measurements are taken without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices with the minimum waste and rework.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Document noise and vibration measurements in HVAC/R applications

  1. OH&S work completion risk control measures and procedures are followed.
  2. Work site is cleaned and made safe in accordance with established procedures.
  3. Justification for alternative approach to determine noise and vibration
  4. Work completion is documented and an appropriate person or persons notified in accordance with established procedures.
OH&S work completion risk control measures and procedures are followed.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work site is cleaned and made safe in accordance with established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Justification for alternative approach to determine noise and vibration

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work completion is documented and an appropriate person or persons notified in accordance with established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

9) The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package. .

The Evidence Guide forms an integral part of this Unit. It must be used in conjunction with all parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package.

Overview of Assessment

9.1)

Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the industry-preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. In some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accordance with industry and regulatory policy.

Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed.

The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Sources of evidence need to be 'rich' in nature to minimise error in judgment.

Activities associated with normal everyday work influence decisions about how/how much the data gathered will contribute to its 'richness'. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

9.2)

Before the critical aspects of evidence are considered all prerequisites must be met.

Evidence for competence in this unit shall be considered holistically. Each Element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the 'Assessment Guidelines - UEE07 '. Evidence shall also comprise:

A representative body of work performance demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this shall incorporate evidence that shows a candidate is able to:

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement

Apply sustainable energy principles and practices as specified in the performance criteria and range statement

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit. It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements.

Demonstrate an appropriate level of skills enabling employment

Conduct work observing the relevant Anti Discrimination legislation, regulations, polices and workplace procedures

Demonstrated consistent performance across a representative range of contexts from the prescribed items below:

Determine noise and vibration encountered in HVAC/R applications as described in 8) and including:

A

Identifying the dynamic characteristics of systems/materials and the effects due to different operating parameters

B

Using established measurement methods

C

Taking relevant measurements accurately

D

Interpreting measured values appropriately

E

Providing correct interpretation of data taken from measurements and calculations

F

Dealing with unplanned events by drawing on essential knowledge and skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items

Context of and specific resources for assessment

9.3)

This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:

OHS policy and work procedures and instructions.

Suitable work environment, facilities, equipment and materials to undertake actual work as prescribed by this unit.

These should be part of the formal learning/assessment environment.

Note:

Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy.

Evidence should show demonstrated competency in providing solutions to vibration problems in HVAC/R system design.

Method of assessment

9.4)

This unit shall be assessed by methods given in Volume 1, Part 3 'Assessment Guidelines'.

Note:
Competent performance with inherent safe working practices is expected in the Industry to which this unit applies. This requires assessment in a structured environment which is intended primarily for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit.

Concurrent assessment and relationship with other units

9.5)

There are no concurrent assessment recommendations for this unit.

Required Skills and Knowledge

7) This describes the essential skills and knowledge and their level, required for this unit.

Evidence shall show that knowledge has been acquired of safe working practices and providing measurements to noise and vibration encountered in HVAC/R applications

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies.

KS01-EJ131A Noise and vibration fundamentals

Evidence shall show an understanding of noise and vibration fundamentals, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects:

T1 Fundamentals of sound

Properties of sound: Wavelength, amplitude, frequency, period, velocity, sound (intensity, pressure, power), decibels

Sound pressure level

Sound power level

Addition of sound levels

Loudness and weighting networks

Sound spectrum and octave bands

Single value representation of sound spectrum

NR curves

Sound meters

T2 Fundamentals of vibration

Terminology: Spring-mass system, spring in series and/or parallel, stiffness, effective stiffness, viscous frictional coefficient, mass, period, frequency (angular, natural, damped, forced), amplitude, static deflection, damping ratio, damping factor, frequency ratio

SHM (Simple Harmonic Motion)

Damped vibration

Forced vibration

Maximum amplitude and resonance

Transmissibility and isolation efficiency

Vibration isolators

Range Statement

8) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance.

This unit must be demonstrated in relation to providing noise and/or vibration measurements in at least two HVAC/R applications.

Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.