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Evidence Guide: DEFWDV027 - Employ air-lift devices under water

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

 

DEFWDV027 - Employ air-lift devices under water

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

Prepare for underwater air-lift operation

  1. Identify and analyse load metrics and worksite data to determine specific requirements for air-lift bags
Identify and analyse load metrics and worksite data to determine specific requirements for air-lift bags

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop a work plan consistent with dive plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, inspect and prepare air-lift bags in accordance with manufacturer specifications and safe weight limits

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Secure air-lift bags to/from dive site

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess obstructions and other underwater hazards to determine risks and manage risk control measures in accordance with dive plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate air-lift devices

  1. Determine a safe work area, confirm location of other divers and nearby vessels and structures prior to commencing and during air-lift operation, in accordance with work plan
Determine a safe work area, confirm location of other divers and nearby vessels and structures prior to commencing and during air-lift operation, in accordance with work plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Secure air-lift bags to object’s lift points

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inflate air-lift bags in accordance with manufacturer specifications and work plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control buoyancy and movement in accordance with work plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete air-lift operations

  1. Minimise environmental impact arising from work task and recover any waste products
Minimise environmental impact arising from work task and recover any waste products

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out air-lift bag post-dive equipment serviceability checks in accordance with manufacturer specifications, report defects, as required, and stow in accordance with organisational requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge