Unit 1 Practical Diving. in open water. • use SCUBA. • use surface supplied equipment. use different deployment devices. Unit 2 Surface Procedures Dress and undress. Assist other divers to dress/undress. Do pre-dive equipment checks. Act as diver is tender in scuba and surface supplied operations. Do post -dive equipment. Inspeet /maintain personal equipment Operate surface supply panel. Use. Inspeet/ maintain compressors test air quality. Unit 3 Communication. Use hand and line signal. • Do voice commas equipments,. Do pre-dive commas. • Do post-dive equipments checks. Unit 4 Under Water Hazards, • Identify hazards/ be aware of precaution to prevent / avoid them Unit 5 Under Water Emereencics. Act as surface standby diver. • Act as in water standby diver. • Act as member of surface team act as diver. Unit 6 Underwater Work. • Use hand tools for simple tasks. Inspect / maintain hand tools. Take safety precaution when using power tools Use bolt guns. Use power tools • Inspect / maintain power tools.