L3 - Safe diving and rescue

Question 1

Accident Avoidance techniques? (5)

Answer 1

Dive defensively, Correct maintenance of equipment, ‘6 P’s’

Question 2

What do when separated underwater?

Answer 2

Stop, look around, omit safety stop and ascend.

Question 3

Shared air ascent routine

Answer 3

Give out of air signal and take AS. Both divers perform a positive grip controlled ascent .

Question 4

Found diver routine

Answer 4

Approach, asses, check gas supply, render assistance

Question 5

If free swimming diver is found (no comms)

Answer 5

may need to use a CBL (controlled buoyant lift), assistance is made by standby diver

Question 6

If rope diver is found (no comms) conscious

Answer 6

One pull to call attention, the another if all is well. 4 pulls and two bells means ‘hoist casualty’ if dive should be aborted.

Question 7

If rope diver is found (no comms) unconscious

Answer 7

Take a firm grip and adjust head to natural angle, signal 5 emergency pulls on lifeline to ‘hoist diver’

Question 8

If free swimming diver is found (with comms) unconscious

Answer 8

Open bailout block on face mask, ‘bailout block open’ conduct CBL to surface

Question 9

If rope diver is found (with comms) unconscious

Answer 9

Open bailout block on face mask, ‘bailout block open’, ‘hoist diver’