Assessor Resource

DEFWDV017
Employ thermal cutting and welding tools (non-load bearing) in an underwater environment

Assessment tool

Version 1.0
Issue Date: March 2024


This unit specifies the skills and knowledge required to use thermal cutting and welding tools in an underwater environment.

It includes preparing underwater cutting and welding tools, operating the generator, selecting appropriate work task tools and inspecting them for serviceability, and securing tools on own body throughout dive. It also includes the surface operation of the electrical generator or gas cylinders supplying the tools, recovering waste, and deservicing and storing equipment.

This unit applies to persons working as Defence Work Divers, or to others working in this field.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Persons undertaking this unit would work independently performing specific tasks in a range of contexts that could be unpredictable.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

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



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.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare for cutting and welding underwater

1.1

Identify and analyse work task, worksite data and work object to determine task requirements

1.2

Develop work plan consistent with dive plan in accordance with organisational procedures and task requirements

1.3

Select, inspect and prepare thermal cutting and welding tools, electrical generator and associate leads, and oxy acetylene gas cylinders and associated hoses, in accordance with manufacturer specifications

1.4

Secure equipment for transport to/from dive site

1.5

Identify obstructions and other cutting/welding hazards to determine risk and to manage risk control measures in accordance with dive plan

2

Operate thermal cutting and welding tools underwater

2.1

Secure thermal cutting and welding tools on self during dive

2.2

Determine safe routes for leads and hoses to worksite in accordance with dive plan and operational safety procedures

2.3

Determine safe work area and confirm location of other divers prior to commencing cutting/welding work tasks, in accordance with work plan

2.4

Manage cutting and welding tool hazards in accordance with dive plan and operational safety procedures

2.5

Disconnect and render tools safe in accordance with dive plan and operational safety procedures

3

Operate generator

3.1

Conduct routine operational and pre-start checks and diagnose and address warning signs in accordance with manufacturer specifications

3.2

Shut down and/or conduct emergency shut down drills in accordance with dive plan

4

Complete underwater cutting and welding operations

4.1

Minimise environmental impact arising from use of thermal cutting and welding tools, and recover waste products

4.2

De-service and store equipment on task completion in accordance with organisational procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least two separate occasions and include:

applying relevant legislation, standards, and organisational policies and procedures

completing underwater cutting and welding operations safely

cutting 12 mm steel plates

identifying and addressing relevant cutting/welding workplace hazards and problems

operating generator to support welding tasks in an underwater environment

operating thermal cutting and welding tools underwater

planning for cutting and welding underwater

stabilising a generator

undertaking underwater welding activities including:

preparing surface of work object for cut or weld

controlling voltage and amperage of arc welding equipment

turning on gas supplies

adjusting ratios of oxygen and acetylene

controlling pressure of oxy acetylene torch

making cuts and welds ensuring minimal distortion to object

inspecting and cleaning cuts and welds

developing power gradually without surging

using a number of thermal cutting and welding tools (non-load bearing) in an underwater environment work tasks:

at depths between 5 metres and 20 metres

on at least one night work task

welding manual metal arc using electric welding equipment.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

dive equipment

dive physics

dive physiology and medicine including:

heat and cold illnesses

compression illnesses

decompression illnesses

diving descent and ascent techniques

general diving safety awareness including:

diving in harbours

diving in tidal waters, currents and tides

diving on and/or near a ship’s bottom

lost/separated

entrapment/foul lines

marine animal threats

pollution/weeds

working in confined spaces

oceanography

relevant cutting/welding workplace hazards and problems

relevant legislation, standards, and organisational policies and procedures

thermal cutting and welding principles and techniques.

As a minimum, assessors must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

As a minimum, assessment must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment currently used in industry

ocean with a range of oceanic, diurnal and nocturnal environments

applicable documentation including organisational procedures, regulations, codes of practice and operation manuals.

When practicable, assessment should relate to the diver’s vocational focus.


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.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare for cutting and welding underwater

1.1

Identify and analyse work task, worksite data and work object to determine task requirements

1.2

Develop work plan consistent with dive plan in accordance with organisational procedures and task requirements

1.3

Select, inspect and prepare thermal cutting and welding tools, electrical generator and associate leads, and oxy acetylene gas cylinders and associated hoses, in accordance with manufacturer specifications

1.4

Secure equipment for transport to/from dive site

1.5

Identify obstructions and other cutting/welding hazards to determine risk and to manage risk control measures in accordance with dive plan

2

Operate thermal cutting and welding tools underwater

2.1

Secure thermal cutting and welding tools on self during dive

2.2

Determine safe routes for leads and hoses to worksite in accordance with dive plan and operational safety procedures

2.3

Determine safe work area and confirm location of other divers prior to commencing cutting/welding work tasks, in accordance with work plan

2.4

Manage cutting and welding tool hazards in accordance with dive plan and operational safety procedures

2.5

Disconnect and render tools safe in accordance with dive plan and operational safety procedures

3

Operate generator

3.1

Conduct routine operational and pre-start checks and diagnose and address warning signs in accordance with manufacturer specifications

3.2

Shut down and/or conduct emergency shut down drills in accordance with dive plan

4

Complete underwater cutting and welding operations

4.1

Minimise environmental impact arising from use of thermal cutting and welding tools, and recover waste products

4.2

De-service and store equipment on task completion in accordance with organisational procedures

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the Companion Volume Implementation Guide.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least two separate occasions and include:

applying relevant legislation, standards, and organisational policies and procedures

completing underwater cutting and welding operations safely

cutting 12 mm steel plates

identifying and addressing relevant cutting/welding workplace hazards and problems

operating generator to support welding tasks in an underwater environment

operating thermal cutting and welding tools underwater

planning for cutting and welding underwater

stabilising a generator

undertaking underwater welding activities including:

preparing surface of work object for cut or weld

controlling voltage and amperage of arc welding equipment

turning on gas supplies

adjusting ratios of oxygen and acetylene

controlling pressure of oxy acetylene torch

making cuts and welds ensuring minimal distortion to object

inspecting and cleaning cuts and welds

developing power gradually without surging

using a number of thermal cutting and welding tools (non-load bearing) in an underwater environment work tasks:

at depths between 5 metres and 20 metres

on at least one night work task

welding manual metal arc using electric welding equipment.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

dive equipment

dive physics

dive physiology and medicine including:

heat and cold illnesses

compression illnesses

decompression illnesses

diving descent and ascent techniques

general diving safety awareness including:

diving in harbours

diving in tidal waters, currents and tides

diving on and/or near a ship’s bottom

lost/separated

entrapment/foul lines

marine animal threats

pollution/weeds

working in confined spaces

oceanography

relevant cutting/welding workplace hazards and problems

relevant legislation, standards, and organisational policies and procedures

thermal cutting and welding principles and techniques.

As a minimum, assessors must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

As a minimum, assessment must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment currently used in industry

ocean with a range of oceanic, diurnal and nocturnal environments

applicable documentation including organisational procedures, regulations, codes of practice and operation manuals.

When practicable, assessment should relate to the diver’s vocational focus.

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 and analyse work task, worksite data and work object to determine task requirements 
Develop work plan consistent with dive plan in accordance with organisational procedures and task requirements 
Select, inspect and prepare thermal cutting and welding tools, electrical generator and associate leads, and oxy acetylene gas cylinders and associated hoses, in accordance with manufacturer specifications 
Secure equipment for transport to/from dive site 
Identify obstructions and other cutting/welding hazards to determine risk and to manage risk control measures in accordance with dive plan 
Secure thermal cutting and welding tools on self during dive 
Determine safe routes for leads and hoses to worksite in accordance with dive plan and operational safety procedures 
Determine safe work area and confirm location of other divers prior to commencing cutting/welding work tasks, in accordance with work plan 
Manage cutting and welding tool hazards in accordance with dive plan and operational safety procedures 
Disconnect and render tools safe in accordance with dive plan and operational safety procedures 
Conduct routine operational and pre-start checks and diagnose and address warning signs in accordance with manufacturer specifications 
Shut down and/or conduct emergency shut down drills in accordance with dive plan 
Minimise environmental impact arising from use of thermal cutting and welding tools, and recover waste products 
De-service and store equipment on task completion in accordance with organisational procedures 

Forms

Assessment Cover Sheet

DEFWDV017 - Employ thermal cutting and welding tools (non-load bearing) in an underwater environment
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

DEFWDV017 - Employ thermal cutting and welding tools (non-load bearing) in an underwater environment

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: