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DEFWDV024 — Dive using closed-circuit breathing apparatus (O2) in open water to a maximum depth of 10 metres

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What an assessment for DEFWDV024 must cover

40 assessable components: 2 elements (8 performance criteria), 10 performance evidence and 22 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Operate a CCBA (O2) compressor and/or hand-held booster pump

  • 1.1Inspect O2 compressor and associated equipment for serviceability and correct gas make-up in accordance with dive brief
  • 1.2Fit appropriate protective equipment in accordance with organisational procedures
  • 1.3Charge O2 gas cylinders to maximum working pressure and record details in relevant logs in accordance with organisational procedures
  • 1.4Conduct operator level maintenance on O2 compressor and/or hand-held booster pump and report defects, as required, in accordance with operational procedures
  • 1.5Undertake compressor post-activity serviceability checks in accordance with manufacturer specifications and report defects, as required, in accordance with operational procedures

2 Conduct CCBA (O2) dive operations

  • 2.1Select, inspect and fit CCBA (O2), and conduct apparatus test prior to entering water and in-water, in accordance with dive plan
  • 2.2Use CCBA (O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan
  • 2.3Complete post-dive CCBA (O2) equipment serviceability checks and report defects, as required, in accordance with organisational procedures

Performance evidence

  • applying relevant industry standards, organisational policies and procedures
  • conducting CCBA (O2) dive operations in accordance with dive plan
  • conducting in-water CCBA (O2) checks
  • handling defective equipment in accordance with organisational guidelines
  • maintaining equipment during dive operations
  • maintaining records according to organisational policies and procedures
  • monitoring CCBA (O2) equipment and gauges
  • operating an O2 compressor/hand-held booster pump in accordance with manufacturer specifications
  • preparing the closed-circuit breathing apparatus (CCBA) dive equipment for supervisor inspection
  • switching from primary to emergency breathing gas system

Knowledge evidence

  • CCBA (O2) dive equipment specifications, characteristics and limitations
  • CCBA (O2) maintenance and servicing recording requirements
  • dive physics
  • dive physiology and medicine, including:
  • compression illnesses
  • decompression illnesses
  • heat and cold illnesses
  • signs and symptoms of gas toxicity
  • diving descent and ascent techniques
  • general diving safety awareness, including:
  • diving in harbours and open water
  • diving in tidal waters, currents and tides
  • diving on and/or near a ship’s hull
  • entrapment/foul lines
  • lost/separated
  • marine animal threats
  • pollution/weeds
  • working in confined spaces
  • hazards of oxygen
  • organisational policies and procedures
  • relevant industry standards
  • safe operating ranges for breathing gas supplies

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing DEFWDV024

What does an assessment tool for DEFWDV024 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for DEFWDV024 needs to address all 40 unit components: 2 elements with 8 performance criteria, 10 performance evidence requirements, 22 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for DEFWDV024?

Auditori pulls the current release of DEFWDV024 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for DEFWDV024 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing DEFWDV024 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of DEFWDV024, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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