SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Which organism makes up more than 99% of the bulk of the plants
produced in the oceans?
Phytoplankton
Corals
Grasses
Seaweeds - ANSWERS-Phytoplankton
The dinoflagellates and diatoms are the two major groups of:
Corals
Zooplankton
Mollusks
Phytoplankton - ANSWERS-Phytoplankton
The stinging mechanisms of jellyfish are located:
On the mesoglea
On the epidermis
On the tentacles
On the gastrodermis - ANSWERS-On the tentacles
END OF
PAGE
1
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
If a diver is injured by harmful sea life, it is usually because of:
The diver`s negligence
The diver`s ignorance
All answers are correct
The diver`s aggressive behavior - ANSWERS-All answers are correct
These are venomous fish that can camouflage exceedingly well with
their background, and their behavior of remaining motionless make them
difficult to spot:
The Scorpionfish and Stonefish
The Blue Tang and the Eels
Barracudas and Groupers
Sharks and Rays - ANSWERS-The Scorpionfish and Stonefish
Near shore, the best time for diving is often during periods of:
Sunshine
Minimal exchange of water between the tides
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PAGE
2
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Clear water
Warm water - ANSWERS-Minimal exchange of water between the tides
A strong current moving away from shore through a narrow opening is
called a:
Longshore current
Rip tide
Surge tide
Transitory current - ANSWERS-Rip tide
An incoming tide is called a ____ and an outgoing tide is called an ____.
Flood; ebb
Flow; rush
Rush; flow
Ebb; flood - ANSWERS-Flood; ebb
Since most of the substrate contains various forms of living organisms,
divers must not:
END OF
PAGE
3
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Trample anything
Be closer than 30 ft
Be negatively buoyant
Dive in areas with living organisms - ANSWERS-Trample anything
Reef building corals grow best at a temperature range between:
73º to 84º
32º to 86º
64º to 77º
86º to 104º - ANSWERS-73º to 84º
At an altitude of about 16,000 feet, the atmospheric pressure is
approximately:
1/18th the atmospheric pressure at sea level
Equal to the atmospheric pressure at sea level
Twice the atmospheric pressure at sea level
One-half the atmospheric pressure at sea level - ANSWERS-One-half
the atmospheric pressure at sea level
END OF
PAGE
4
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Which organism makes up more than 99% of the bulk of the plants
produced in the oceans?
Phytoplankton
Corals
Grasses
Seaweeds - ANSWERS-Phytoplankton
The dinoflagellates and diatoms are the two major groups of:
Corals
Zooplankton
Mollusks
Phytoplankton - ANSWERS-Phytoplankton
The stinging mechanisms of jellyfish are located:
On the mesoglea
On the epidermis
On the tentacles
On the gastrodermis - ANSWERS-On the tentacles
END OF
PAGE
1
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
If a diver is injured by harmful sea life, it is usually because of:
The diver`s negligence
The diver`s ignorance
All answers are correct
The diver`s aggressive behavior - ANSWERS-All answers are correct
These are venomous fish that can camouflage exceedingly well with
their background, and their behavior of remaining motionless make them
difficult to spot:
The Scorpionfish and Stonefish
The Blue Tang and the Eels
Barracudas and Groupers
Sharks and Rays - ANSWERS-The Scorpionfish and Stonefish
Near shore, the best time for diving is often during periods of:
Sunshine
Minimal exchange of water between the tides
END OF
PAGE
2
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Clear water
Warm water - ANSWERS-Minimal exchange of water between the tides
A strong current moving away from shore through a narrow opening is
called a:
Longshore current
Rip tide
Surge tide
Transitory current - ANSWERS-Rip tide
An incoming tide is called a ____ and an outgoing tide is called an ____.
Flood; ebb
Flow; rush
Rush; flow
Ebb; flood - ANSWERS-Flood; ebb
Since most of the substrate contains various forms of living organisms,
divers must not:
END OF
PAGE
3
, SSI SCIENCE OF DIVING LATEST
EXAM QUESTIONS AND
ANSWERS 2026 - 2027
Trample anything
Be closer than 30 ft
Be negatively buoyant
Dive in areas with living organisms - ANSWERS-Trample anything
Reef building corals grow best at a temperature range between:
73º to 84º
32º to 86º
64º to 77º
86º to 104º - ANSWERS-73º to 84º
At an altitude of about 16,000 feet, the atmospheric pressure is
approximately:
1/18th the atmospheric pressure at sea level
Equal to the atmospheric pressure at sea level
Twice the atmospheric pressure at sea level
One-half the atmospheric pressure at sea level - ANSWERS-One-half
the atmospheric pressure at sea level
END OF
PAGE
4
