Assessor Resource

PMAOPS260A
Conduct screening operations

Assessment tool

Version 1.0
Issue Date: April 2024


This unit applies to a person who has the responsibility for starting, stopping and monitoring screening operations and covers a variety of screen types.

This unit applies to an individual working alone or as part of a team or group and working in liaison with other shift team members and the control room operator, as appropriate.

This unit has a relationship with other materials handling competencies, such as PMC552008B Operate crushing equipment, PMC562070B Move materials and PMAOPS210B Operate particulates handling equipment, which may apply as part of the processing operation.

This unit requires a detailed knowledge of screening operations, screen types and operating principles.

This unit has been written to apply to screening/sizing operations as they occur with crushed/ground solid material. However, it should also be applicable to applications wherever particulates of different sizes need to be separated/classified, such as plastic pellets, and where solids feed to a process, with appropriate contextualisation.

This unit of competency covers the skills and knowledge needed to conduct screening operations in metalliferous processing, extractive and other industries using screens to separate coarser from finer solids. It includes the planning and preparing for operations, conducting screening plant operations and carrying out post-operational procedures.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Not applicable.

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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

Critical aspects for assessment and evidence are:

early warning signs of equipment/processes needing attention or with potential problems are recognised

the range of possible causes can be identified and analysed and the most likely cause determined

appropriate action is taken to ensure a timely return to full performance

obvious problems in related plant areas are recognised and an appropriate contribution made to their solution.

Context of and specific resources for assessment

Assessment of this competency will occur over a range of situations which will include typical disruptions to normal, smooth operation. This will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability. Where safety, lack of opportunity or significant cost is an issue an industry-based simulation may be employed to assist the process. It may be appropriate to consider assessment concurrently with the following units:

PMC552008B Operate crushing equipment

PMC562070B Move materials

PMAOPS210B Operate particulates handling equipment.

Guidance information for assessment

Assessment processes and techniques must be appropriate to the language, competency and safety requirements of the site and consistent with workplace systems or procedures.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Required skills include:

recognising conditions which will lead to out of specification operation

implementing enterprise procedures within time constraints and in a manner relevant to the correct use of the equipment

conveying information relevant to the operation clearly and effectively

maintaining appropriate levels of quality assurance

reading and numeracy to interpret workplace documents and technical information

Required knowledge

Required knowledge includes:

principles of operation of screening equipment

process parameters and limits

types of screen cloths

effects of bed density

causes of contamination

routine problems, faults and their symptoms and the corrective action to be taken

relevant alarms and actions

plant process idiosyncrasies

physical principles, including:

sinusoidal vibration or gyratory vibration

gravity

density of materials

electrostatic force

stratification

screening terminology, including:

amplitude

acceleration

blinding

brushing

contamination

deck

frequency

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.

Procedures

Procedures may be written, verbal, computer-based or in some other form. They may include, but are not limited to:

all work instructions

standard operating procedures

temporary instructions

any similar instructions provided for the smooth running of the plant

good operating practice as may be defined by industry codes of practice

Procedures would be expected to comply with any relevant government regulations.

Logs and reports

Logs and reports may include:

paper or electronic-based logs and reports

verbal/radio reports

reporting items found which require action

Appropriate action

Appropriate action includes, but is not limited to:

determining problems needing action

determining possible fault causes

rectifying predictable problems using appropriate solution from procedures

following through items initiated until final resolution has occurred

reporting problems outside area of responsibility/scope of procedures to designated person

Typical problems

Typical problems may include, but are not limited to:

feed or discharge blockages

blinding

screen cloth blockages

electro-static build-up

aggregate size contamination

Screening equipment types

Screening applications include:

wet screening

dry screening

Screening equipment covered by this unit includes:

moving screen

static screen

rotary screens

circle-throw vibrating equipment

high frequency vibrating equipment

gyratory equipment

Health, safety and environment (HSE)

All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between Performance Criteria and HSE requirements, the HSE requirements take precedence.

Work requirements

Work requirements may come from briefings, handovers, and work orders and may include:

compliance documentation

product specifications

nature and scope of tasks

achievement targets

operational conditions

geological data

site survey data

site layout and out of bounds areas

worksite inspection requirements

lighting conditions

plant or equipment defects

hazards and potential hazards

coordination requirements or issues

Appropriate personnel

Appropriate personnel may include:

other process operators

contractors

laboratory personnel

mobile plant operators

maintenance personnel

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify work requirements 
Coordinate with appropriate personnel 
Check screen feed and discharge areas for obstructions and hazards 
Check operational status of equipment 
Complete any required pre-start checks 

Forms

Assessment Cover Sheet

PMAOPS260A - Conduct screening operations
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

PMAOPS260A - Conduct screening operations

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: