Assessor Resource

MEM12007D
Mark off/out structural fabrications and shapes

Assessment tool

Version 1.0
Issue Date: May 2024


The unit of competency applies to the marking off/out of general fabrications and shapes using appropriate tools and equipment. The marking out is undertaken to specified measurements, tolerances and shapes.

Skills covered by this unit are generally applied in occupational and work situations associated with steel fabrication, boilermaking or sheet metal work.

This unit has been developed for Engineering Tradesperson - Fabrication apprenticeship training and the recognition of trade level skills in mark off/out of structural fabrications and shapes.

All work and work practices are carried out to industry, regulatory and legislative requirements. The task may be performed in the workshop or in situ.

Templates and patterns are produced as required.

In a marine setting, it includes basic lofting/set out for construction of marine vessels and may include items such as stem and transom development and use of tables of offsets that reflect chine and hull configuration. This may include lofting surfaces, straight edges, string lines, French curves, templates, etc. Marking out techniques may apply to a range of materials and shapes.

Where more extensive lofting practices are used, MEM09021B Interpret and produce curved 3-dimensional shapes should be considered.

For marking out general engineering components, refer to MEM12006C Mark off/out (general engineering).

Band: A

Unit Weight: 4

This unit of competency covers the skills required by an Engineering Tradesperson - Fabrication for transferring the dimensions from the detail drawing to work, making templates as required, developing patterns and/or transferring measurements to structures, interpreting relevant codes, standards and symbols and estimating quantities of material from drawings.

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

Prerequisites

Path 1

MEM12023A

Perform engineering measurements

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.

Overview of assessment

A person who demonstrates competency in this unit must be able to mark off/out structural fabrications and shapes. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

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

Assessors must be satisfied that the candidate can competently and consistently apply the skills covered in this unit of competency in new and different workplace situations and contexts. Critical aspects of assessment and evidence include:

examining detailed drawings for fabrication requirements and specifications including materials, measurements and tolerances, joining methods, standards and code requirements

correctly determining sequence of measuring and/or development

correctly establishing and marking datum points

accurately transferring measurements to components

correctly calculating allowances for fabrication and assembly including shrinkage, thickness and inside/outside measurements

accurately producing templates.

Context of and specific resources for assessment

This unit has been developed to support training in and recognition of trade level competency in marking off/out structural fabrications and shapes as applied to a sheet metal or metal fabrication environment. Assessment should emphasise a workplace context and procedures found in the candidate's workplace.

The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

Method of assessment

Typically, persons engaged in Engineering Tradesperson - Fabrication work are required to apply their geometric development skills and techniques across a range of jobs and specifications.

A single assessment event is not appropriate. On the job assessment should be included as part of the assessment process wherever possible. Where assessment occurs off the job, judgement must consider evidence of the candidate's performance in a productive work environment that includes a sufficient range of appropriate tasks and materials to cover the scope of application for this unit.

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency.

The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with marking off/out structural fabrications and shapes or other units requiring the exercise of the skills and knowledge covered by this unit.

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

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:

reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents

undertaking numerical operations, geometry and calculations/formulae within the scope of this unit

planning and sequencing operations

using techniques and equipment required for marking off/out and developing patterns

checking for conformance to specifications

establishing and marking datum points

developing patterns according to specification

determining fabrication and assembly allowances and transferring to the pattern

where applicable, applying the requirements of the codes/standards during the geometric development/marking off/out process

determining material and component quantities from drawings and job specifications

minimising material wastage

Required knowledge

Required knowledge includes:

procedures for marking off/out and pattern development

tools and equipment to be used in the preparation of the marking off/out

datum points

materials that can be used for the preparation of templates and their application

manufacturing allowances that have to be considered when developing patterns

template labelling and identification procedures

storage requirements of templates

appropriate methods of development/marking off/out of a range of given objects

appropriate fabrication and assembly allowances

effects of material type and thickness on fabrication and assembly allowances

sources of data on fabrication and assembly allowances

relevant standards and codes and the meaning of symbols used

requirements of the codes/standards applicable to the work to be done

materials from which the component/assembly is to be manufactured

benefits of minimising material wastage

applicable industry standards, national/Australian Standards, NOHSC guides, state/territory regulatory codes of practice/standards

safe work practices and procedures

relevant hazards and control measures related to the competency

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.

Equipment

Equipment may include marking out tools as required

Template material

Template material may include:

steel plate

perspex

timber

cardboard

paper

Storage procedures

Storage procedures may include:

labelling

identification (e.g. template lofts)

Allowances

Allowances may include:

thickness

bend

pitch

angle

circumference

perimeter

Standards/codes and symbols

All work carried out in accordance with legislative and regulatory requirements

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
Specifications and work requirements are determined and understood using correct and appropriate calculations 
Marking out is carried out to specifications or standard operating procedures using appropriate tools and equipment 
Datum points are established 
Appropriate template/pattern material is chosen when required 
Required templates are produced to specifications 
Correct storage procedures are followed including labelling and identification to standard operating procedures 
Most appropriate development and/or measurement sequence is chosen and applied 
Allowances for fabrication and assembly are correctly determined and transferred 
Measurement transfer/layout of components is checked to ensure accuracy/set out 
Relevant standards/codes and symbols are interpreted 
Requirements of standards/codes are interpreted and applied to materials and processes 
Materials are correctly identified 
Quantities are estimated from drawing 
Material wastage is minimised 

Forms

Assessment Cover Sheet

MEM12007D - Mark off/out structural fabrications and shapes
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

MEM12007D - Mark off/out structural fabrications and shapes

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: