NTISthis.com

Evidence Guide: DEFWDV001 - Dive using self-contained underwater breathing apparatus in open water to 30 metres

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

 

DEFWDV001 - Dive using self-contained underwater breathing apparatus in open water to 30 metres

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

Prepare for a decompression dive

  1. Develop a dive plan using decompression tables and obtain supervisor’s clearance in accordance with organisational procedures
  2. Select, fit and test equipment in accordance with manufacturer specifications
  3. Inspect equipment for serviceability, quarantine any unserviceable equipment and report defects to maximise diver safety
  4. Ensure independent safety check of fit and function of equipment is carried out by a diver’s attendant or dive supervisor
Develop a dive plan using decompression tables and obtain supervisor’s clearance in accordance with organisational procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Select, fit and test equipment in accordance with manufacturer specifications

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Inspect equipment for serviceability, quarantine any unserviceable equipment and report defects to maximise diver safety

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure independent safety check of fit and function of equipment is carried out by a diver’s attendant or dive supervisor

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Enter and exit the water

  1. Position markers in the water to identify presence of divers
  2. Conduct in-water leak test at the surface to ensure the integrity and functionality of equipment
  3. Adjust buoyancy to commence dive and as required throughout dive
Position markers in the water to identify presence of divers

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Conduct in-water leak test at the surface to ensure the integrity and functionality of equipment

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Adjust buoyancy to commence dive and as required throughout dive

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Descend to, and ascend from, a 30 metres bottom

  1. Maintain measured and controlled breathing and finning
  2. Implement diving descent and ascent techniques, and decompression techniques in accordance with dive plan and safety procedures
  3. Monitor relevant risk factors throughout dive to manage threats and personal safety, in accordance with organisational procedures
  4. Recover spatial awareness when balance is lost under conditions of zero visibility
  5. Recover any lost and/or separated diver
  6. Maintain awareness of, and distance from, surface and sub surface hazards
  7. Ensure minimal disturbance to bottom to enable maximum visibility and a safe work environment, in accordance with dive plan
  8. Undertake checks to ensure safety to surface
Maintain measured and controlled breathing and finning

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Implement diving descent and ascent techniques, and decompression techniques in accordance with dive plan and safety procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Monitor relevant risk factors throughout dive to manage threats and personal safety, in accordance with organisational procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Recover spatial awareness when balance is lost under conditions of zero visibility

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Recover any lost and/or separated diver

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Maintain awareness of, and distance from, surface and sub surface hazards

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure minimal disturbance to bottom to enable maximum visibility and a safe work environment, in accordance with dive plan

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Undertake checks to ensure safety to surface

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Identify and manage dive-specific medical problems

  1. Recognise signs and symptoms of compression and/or decompression related problems in self and others, and take immediate corrective action in accordance with dive plan and safety procedures
  2. Recognise and manage heat and cold related problems in self or others and hazards, in accordance with dive plan and safety procedures
Recognise signs and symptoms of compression and/or decompression related problems in self and others, and take immediate corrective action in accordance with dive plan and safety procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Recognise and manage heat and cold related problems in self or others and hazards, in accordance with dive plan and safety procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Communicate underwater

  1. Inspect electronic communications device and accessories for serviceability and fit
  2. Transmit and receive messages using electronic communications devices in accordance with dive plan
  3. De-service and stow electronic communications device and accessories in accordance with manufacturer specifications
  4. Communicate non-verbally with other divers using hand signals, writing boards and standard single line signals, in accordance with dive plan
Inspect electronic communications device and accessories for serviceability and fit

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Transmit and receive messages using electronic communications devices in accordance with dive plan

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

De-service and stow electronic communications device and accessories in accordance with manufacturer specifications

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Communicate non-verbally with other divers using hand signals, writing boards and standard single line signals, in accordance with dive plan

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Perform a simple navigation leg underwater

  1. Maintain compass bearing underwater
  2. Estimate and maintain distance for a constant swim rate underwater
  3. Estimate distance travelled in dive
Maintain compass bearing underwater

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Estimate and maintain distance for a constant swim rate underwater

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Estimate distance travelled in dive

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

React to individual and group contingencies and/or emergencies

  1. Resolve flooded face mask and/or blocked mouthpiece by clearing and refitting
  2. Resolve failed primary breathing system and manage irrecoverable malfunctions in accordance with dive plan
  3. Manage lost and/or severed safety line/s, as required
  4. Manage significant systemic failures through ditching drill and emergency surfacing drill, in accordance with dive plan and safety procedures
Resolve flooded face mask and/or blocked mouthpiece by clearing and refitting

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Resolve failed primary breathing system and manage irrecoverable malfunctions in accordance with dive plan

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Manage lost and/or severed safety line/s, as required

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Manage significant systemic failures through ditching drill and emergency surfacing drill, in accordance with dive plan and safety procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Maintain equipment

  1. Maintain equipment in accordance with manufacturer specifications
  2. De-service, test and stow post dive equipment
  3. Quarantine unserviceable equipment and report defects in accordance with organisational procedures
Maintain equipment in accordance with manufacturer specifications

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

De-service, test and stow post dive equipment

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Quarantine unserviceable equipment and report defects in accordance with organisational procedures

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

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

1

Prepare for a decompression dive

1.1

Develop a dive plan using decompression tables and obtain supervisor’s clearance in accordance with organisational procedures

1.2

Select, fit and test equipment in accordance with manufacturer specifications

1.3

Inspect equipment for serviceability, quarantine any unserviceable equipment and report defects to maximise diver safety

1.4

Ensure independent safety check of fit and function of equipment is carried out by a diver’s attendant or dive supervisor

2

Enter and exit the water

2.1

Position markers in the water to identify presence of divers

2.2

Conduct in-water leak test at the surface to ensure the integrity and functionality of equipment

2.3

Adjust buoyancy to commence dive and as required throughout dive

3

Descend to, and ascend from, a 30 metres bottom

3.1

Maintain measured and controlled breathing and finning

3.2

Implement diving descent and ascent techniques, and decompression techniques in accordance with dive plan and safety procedures

3.3

Monitor relevant risk factors throughout dive to manage threats and personal safety, in accordance with organisational procedures

3.4

Recover spatial awareness when balance is lost under conditions of zero visibility

3.5

Recover any lost and/or separated diver

3.6

Maintain awareness of, and distance from, surface and sub surface hazards

3.7

Ensure minimal disturbance to bottom to enable maximum visibility and a safe work environment, in accordance with dive plan

3.8

Undertake checks to ensure safety to surface

4

Identify and manage dive-specific medical problems

4.1

Recognise signs and symptoms of compression and/or decompression related problems in self and others, and take immediate corrective action in accordance with dive plan and safety procedures

4.2

Recognise and manage heat and cold related problems in self or others and hazards, in accordance with dive plan and safety procedures

5

Communicate underwater

5.1

Inspect electronic communications device and accessories for serviceability and fit

5.2

Transmit and receive messages using electronic communications devices in accordance with dive plan

5.3

De-service and stow electronic communications device and accessories in accordance with manufacturer specifications

5.4

Communicate non-verbally with other divers using hand signals, writing boards and standard single line signals, in accordance with dive plan

6

Perform a simple navigation leg underwater

6.1

Maintain compass bearing underwater

6.2

Estimate and maintain distance for a constant swim rate underwater

6.3

Estimate distance travelled in dive

7

React to individual and group contingencies and/or emergencies

7.1

Resolve flooded face mask and/or blocked mouthpiece by clearing and refitting

7.2

Resolve failed primary breathing system and manage irrecoverable malfunctions in accordance with dive plan

7.3

Manage lost and/or severed safety line/s, as required

7.4

Manage significant systemic failures through ditching drill and emergency surfacing drill, in accordance with dive plan and safety procedures

8

Maintain equipment

8.1

Maintain equipment in accordance with manufacturer specifications

8.2

De-service, test and stow post dive equipment

8.3

Quarantine unserviceable equipment and report defects in accordance with organisational procedures

Required Skills and Knowledge

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

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

1

Prepare for a decompression dive

1.1

Develop a dive plan using decompression tables and obtain supervisor’s clearance in accordance with organisational procedures

1.2

Select, fit and test equipment in accordance with manufacturer specifications

1.3

Inspect equipment for serviceability, quarantine any unserviceable equipment and report defects to maximise diver safety

1.4

Ensure independent safety check of fit and function of equipment is carried out by a diver’s attendant or dive supervisor

2

Enter and exit the water

2.1

Position markers in the water to identify presence of divers

2.2

Conduct in-water leak test at the surface to ensure the integrity and functionality of equipment

2.3

Adjust buoyancy to commence dive and as required throughout dive

3

Descend to, and ascend from, a 30 metres bottom

3.1

Maintain measured and controlled breathing and finning

3.2

Implement diving descent and ascent techniques, and decompression techniques in accordance with dive plan and safety procedures

3.3

Monitor relevant risk factors throughout dive to manage threats and personal safety, in accordance with organisational procedures

3.4

Recover spatial awareness when balance is lost under conditions of zero visibility

3.5

Recover any lost and/or separated diver

3.6

Maintain awareness of, and distance from, surface and sub surface hazards

3.7

Ensure minimal disturbance to bottom to enable maximum visibility and a safe work environment, in accordance with dive plan

3.8

Undertake checks to ensure safety to surface

4

Identify and manage dive-specific medical problems

4.1

Recognise signs and symptoms of compression and/or decompression related problems in self and others, and take immediate corrective action in accordance with dive plan and safety procedures

4.2

Recognise and manage heat and cold related problems in self or others and hazards, in accordance with dive plan and safety procedures

5

Communicate underwater

5.1

Inspect electronic communications device and accessories for serviceability and fit

5.2

Transmit and receive messages using electronic communications devices in accordance with dive plan

5.3

De-service and stow electronic communications device and accessories in accordance with manufacturer specifications

5.4

Communicate non-verbally with other divers using hand signals, writing boards and standard single line signals, in accordance with dive plan

6

Perform a simple navigation leg underwater

6.1

Maintain compass bearing underwater

6.2

Estimate and maintain distance for a constant swim rate underwater

6.3

Estimate distance travelled in dive

7

React to individual and group contingencies and/or emergencies

7.1

Resolve flooded face mask and/or blocked mouthpiece by clearing and refitting

7.2

Resolve failed primary breathing system and manage irrecoverable malfunctions in accordance with dive plan

7.3

Manage lost and/or severed safety line/s, as required

7.4

Manage significant systemic failures through ditching drill and emergency surfacing drill, in accordance with dive plan and safety procedures

8

Maintain equipment

8.1

Maintain equipment in accordance with manufacturer specifications

8.2

De-service, test and stow post dive equipment

8.3

Quarantine unserviceable equipment and report defects 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 one occasion and include:

acting as a relay between two callsigns

applying relevant legislation, and organisational policies and procedures

communicating verbally by radio and non-verbally through signalling methods

compiling briefs and clear messages

complying with assigned callsigns

conducting decompression stops and requirements

conducting unplanned decompression procedures arising from the onset of (simulated) compression related problems

demonstrating situational awareness of position and orientation, equipment (including depth, time and air gauges), and other divers

implementing emergency surfacing

managing hazards during dives

managing medical complications during dives and perceiving these in self and others

navigating underwater, using a compass only, a complete triangle of side length not less than 30 m (way-points only to be distinguishable within 8 m)

performing buddy breathing

switching from primary to reserve air system

taking necessary corrective action/s and managing a range of individual and group contingencies and/or emergencies.

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:

decompression calculations

decompression tables to determine decompression time/s and depth/s for a range of dive profiles

decompression techniques

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

general precautions to be taken against a range of hazards

handling procedures for nonfunctional items

line signals

marine hazards including marine animal threats

navigation theory

oceanography

principles of underwater communication systems and diver intercom systems, and their limitations

radio frequency hazards

radio telephone procedures (RTP)

relevant hand signals

relevant legislation, industry standards, and organisational policies and procedures

safe operating ranges for airsupplies

surfacing procedures including awareness of surface and sub-surface hazards.

Range Statement

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.