SSI SCIENCE OF DIVING ACTUAL QUESTIONS AND

SSI SCIENCE OF DIVING ACTUAL / QUESTIONS AND

VERIFIED CORRECT ANSWERS

Doppler ultrasound equipment was used to detect the presence of bubbles which are thought to precede

Decompression Sickness. These bubbles are called:

Silent bubbles None of the Answers are correct Air bubbles Noisy bubbles - ----Answers----Silent bubbles

A dive is defined as a decompression dive only if you exceed

the:

Time at the safety stop Ascent rate Descent rate No-decompression limits - ----Answers----No- decompression limits Group management procedures should include a warning to divers to be careful when moving about on land, especially on

rocks at the water's edge, to avoid:

Injuries by the environment Lost equipment Injuries through your buddy 1 / 3

Damaged equipment - ----Answers----Injuries by the environment

Understanding "scuba oceanography" is important for divers,

because understanding water conditions aids in:

Equipment set up Trip planning Dive planning and dive mastering Emergency ascents - ----Answers----Dive planning and dive mastering

A helpful professional will inform divers at the pre-dive briefing of what potential aquatic species may be encountered

and:

Where they are likely to be encountered How dangerous they are How they can breed How they can be avoided - ----Answers----Where they are likely to be encountered

The SMB is used to communicate the diver's position to:

His/her dive buddy Other dive groups underwater Topside personnel and boats Pilots - ----Answers----Topside personnel and boats

• / 3

Although all corals contain stinging cells, one group is the

most troublesome to divers. These are called:

Leather corals Soft corals Fire corals Brain corals - ----Answers----Fire corals

SSI recommends that divers do not swim in a current faster

than:

Two knots 0.1 knots One knot 0.5 knots - ----Answers----One knot

A current may flow one direction at the surface and in the opposite direction a few feet beneath the surface.False True - ----Answers----True

The size of waves is measured by the:

Horizontal distance from the crest (top) of a wave to the next wave crest Vertical distance from the crest (top) of a wave to the trough (bottom) Horizontal distance from the trough (bottom) of a wave to the next wave bottom

• / 3