1 | Page
BSAC SPORTS DIVER THEORY 2025 UPDATED
ACTUAL EXAM WITH CORRECT SOLUTIONS.
When can a sports diver dive with an ocean diver or another
sports diver? - correct answer- In conditions already
encountered by the ocean diver during their training and under
the supervision of a dive manager.
What's the initial limited depth for a sports diver? - correct
answer- 20m
What's the progressively extended depth of a sports diver? -
correct answer- 35m
Is a neap tide small or large? - correct answer- Small
Is a spring tide small or large? - correct answer- Large
What causes a neap tide? - correct answer- When the Moon is
at a right angle to Earth and the Sun, creating the least amount
of gravitational pull in one direction, creating weak tides.
,2 | Page
What causes spring tides? - correct answer- The gravity of the
sun and moon pull in the same direction, creating strong tides.
Neap tides coincide with what? - correct answer- The quarters
of the moon
Spring tides coincide with what? - correct answer- New and full
moon
What's the average tide cycle in most places? - correct answer-
12 hours
How many tide cycles in a day? - correct answer- 2
How many high tides in a day? - correct answer- 2
How many low tides are there in a day? - correct answer- 2
,3 | Page
How many times do spring tides occur in a lunar month? -
correct answer- 2
How many times do neap tides occur in a lunar month? -
correct answer- 2
What's the tidal range? - correct answer- High water - low water
What's slack water? - correct answer- At the tides turning point,
when the water speed is at its slowest.
What can make diving on a static site (e.g. a wreck) safer? -
correct answer- Diving in slack water
What is ground swell? - correct answer- When wind causing
wave action on the surface can be felt on the sea bed.
When is ground swell the roughest? - correct answer- When
the surface winds go against the tide/stream/current flow.
, 4 | Page
Is an incoming or outgoing tide better for visibility? - correct
answer- Incoming
What are five factors that can affect visibility? - correct answer-
- bad weather
- tides
- being close to river estuaries
- lots of phytoplankton + zooplankton (most likely to be a
problem in spring in most places.)
-disturbance by divers.
What's a thermocline? - correct answer- Sudden change in
temperature, may look oily/ shiny and produce a change in
visibility
What can you do to reduce the effect of glare on the surface
(as a boat crew member, not a diver?) - correct answer- - wear
polarised sunglasses
- position the boat with the sun behind you
BSAC SPORTS DIVER THEORY 2025 UPDATED
ACTUAL EXAM WITH CORRECT SOLUTIONS.
When can a sports diver dive with an ocean diver or another
sports diver? - correct answer- In conditions already
encountered by the ocean diver during their training and under
the supervision of a dive manager.
What's the initial limited depth for a sports diver? - correct
answer- 20m
What's the progressively extended depth of a sports diver? -
correct answer- 35m
Is a neap tide small or large? - correct answer- Small
Is a spring tide small or large? - correct answer- Large
What causes a neap tide? - correct answer- When the Moon is
at a right angle to Earth and the Sun, creating the least amount
of gravitational pull in one direction, creating weak tides.
,2 | Page
What causes spring tides? - correct answer- The gravity of the
sun and moon pull in the same direction, creating strong tides.
Neap tides coincide with what? - correct answer- The quarters
of the moon
Spring tides coincide with what? - correct answer- New and full
moon
What's the average tide cycle in most places? - correct answer-
12 hours
How many tide cycles in a day? - correct answer- 2
How many high tides in a day? - correct answer- 2
How many low tides are there in a day? - correct answer- 2
,3 | Page
How many times do spring tides occur in a lunar month? -
correct answer- 2
How many times do neap tides occur in a lunar month? -
correct answer- 2
What's the tidal range? - correct answer- High water - low water
What's slack water? - correct answer- At the tides turning point,
when the water speed is at its slowest.
What can make diving on a static site (e.g. a wreck) safer? -
correct answer- Diving in slack water
What is ground swell? - correct answer- When wind causing
wave action on the surface can be felt on the sea bed.
When is ground swell the roughest? - correct answer- When
the surface winds go against the tide/stream/current flow.
, 4 | Page
Is an incoming or outgoing tide better for visibility? - correct
answer- Incoming
What are five factors that can affect visibility? - correct answer-
- bad weather
- tides
- being close to river estuaries
- lots of phytoplankton + zooplankton (most likely to be a
problem in spring in most places.)
-disturbance by divers.
What's a thermocline? - correct answer- Sudden change in
temperature, may look oily/ shiny and produce a change in
visibility
What can you do to reduce the effect of glare on the surface
(as a boat crew member, not a diver?) - correct answer- - wear
polarised sunglasses
- position the boat with the sun behind you
