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Elements and Performance Criteria

  1. Prepare and rig lazy shot and bail-out cylinder
  2. Attend to a SCUBA (air) diver from the surface

Evidence Required

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

Assessment must confirm the ability to rig and set lazy shot and bailout at appropriate depths to maintain communications and to maintain attention to the diver throughout the dives

Assessment must confirm the ability to rig and set lazy shot and bailout at appropriate depth/s; to maintain communications; and to maintain attention to the diver throughout the dives.

Consistency in performance

Competency should be demonstrated over a variety of tasks including

transmitting at least two messages from the supervisor to the diver

relaying at least two messages from the diver to the supervisor

controlling a searching diver at a minimum in poor visibility less than metres for legs of metres eg parallel search

Context of and specific resources for assessment

Context of assessment

Competency should be assessed in the ocean supported by questioning on shore or aboard vessels

When practicable assessment should relate to the divers vocational focus

Specific resources for assessment

Access to a complete range of diving safety and accessory equipment lazy shot and bailout equipment and a dive platform

Access to a complete range of diving, safety and accessory equipment; lazy shot and bailout equipment; and a dive platform.


Range Statement

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 in the Performance Criteria is detailed below.

Open water environment includes:

oceans, seas, lakes and rivers

day or night

subsurface conditions:

current (0-2 knots)

visibility (0 metre +)

temperature (0 degrees +)

surface and sub-surface hazards such as:

anchor drop zones

cathodic protection devices

electrical cabling

inlets and sonar/radio

frequency hazards

marine animals piers and jetties

pipelines

pollutants

propellers/thrusters

trapping hazards:

beams

culverts

gates

grottoes and caves

intakes and out-falls

nets

safety, anchor and communications lines

sewers

submerged ships, vehicles and structures

sluices

vessel rocking and associated movement

Lazy shot variations may include:

lazy shot and fixed shot rope

lazy shot and drifting stops

lazy shot and float line

lazy shot and life line

De-servicing may include:

applying protective substances

cleaning

drying

inspecting

refilling (gas)

Inspecting dive equipment may include:

anchorage of safety lines

confirmation of necessary equipment

function of apparatus:

air

buoyancy device

general fit and form

security of buckles and attachments

Entry may include:

dive

forward/backward jump

roll-back

walk-in (backwards)

Platforms may include:

boats

ships

(semi) -permanent platforms

Equipment may include:

breathing system and devices:

pressure:

demand

positive

supply:

independent primary

cylinder configuration:

single

buoyancy devices:

buoyancy compensator

weight belt

dive clothing:

facemask

fins gloves

wet-suit (including booties and hood)

diving accessory equipment:

knife

watch

compass

communications slate

facemask/mouthpiece ensemble

safety equipment:

diver's safety lines