BSAC sports diver theory exam
questions & answers
When can a sports diver dive with an ocean diver or another sports diver? - ANSWERSIn
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? - ANSWERS20m
What's the progressively extended depth of a sports diver? - ANSWERS35m
Is a neap tide small or large? - ANSWERSSmall
Is a spring tide small or large? - ANSWERSLarge
What causes a neap tide? - ANSWERSWhen 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.
What causes spring tides? - ANSWERSThe gravity of the sun and moon pull in the same
direction, creating strong tides.
Neap tides coincide with what? - ANSWERSThe quarters of the moon
Spring tides coincide with what? - ANSWERSNew and full moon
What's the average tide cycle in most places? - ANSWERS12 hours
,How many tide cycles in a day? - ANSWERS2
How many high tides in a day? - ANSWERS2
How many low tides are there in a day? - ANSWERS2
How many times do spring tides occur in a lunar month? - ANSWERS2
How many times do neap tides occur in a lunar month? - ANSWERS2
What's the tidal range? - ANSWERSHigh water - low water
What's slack water? - ANSWERSAt 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? - ANSWERSDiving in slack water
What is ground swell? - ANSWERSWhen wind causing wave action on the surface can be felt on
the sea bed.
When is ground swell the roughest? - ANSWERSWhen the surface winds go against the
tide/stream/current flow.
Is an incoming or outgoing tide better for visibility? - ANSWERSIncoming
What are five factors that can affect visibility? - ANSWERS- 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? - ANSWERSSudden 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?) - ANSWERS- wear polarised sunglasses
- position the boat with the sun behind you
What are four things you should take into account when doing a risk assessment? -
ANSWERSConditions, depth, breathing gas and equipment
As neoprene wetsuits compress, there is a loss of what? - ANSWERSThermal insulation
What precautions can you take to minimise the risk of a dive to yourself and your buddy? -
ANSWERS-don't dive if you're unsure
- service equipment
- back up supply of gas
- pre agreed narcosis check (at agreed depth or gas level)
- practiced rescue skills
-
What are the four practised rescue skills you'll do as a sports diver? - ANSWERSCBL/AS, basic life
support (BLS), rescue breathing (RB), chest compressions (CC)
questions & answers
When can a sports diver dive with an ocean diver or another sports diver? - ANSWERSIn
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? - ANSWERS20m
What's the progressively extended depth of a sports diver? - ANSWERS35m
Is a neap tide small or large? - ANSWERSSmall
Is a spring tide small or large? - ANSWERSLarge
What causes a neap tide? - ANSWERSWhen 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.
What causes spring tides? - ANSWERSThe gravity of the sun and moon pull in the same
direction, creating strong tides.
Neap tides coincide with what? - ANSWERSThe quarters of the moon
Spring tides coincide with what? - ANSWERSNew and full moon
What's the average tide cycle in most places? - ANSWERS12 hours
,How many tide cycles in a day? - ANSWERS2
How many high tides in a day? - ANSWERS2
How many low tides are there in a day? - ANSWERS2
How many times do spring tides occur in a lunar month? - ANSWERS2
How many times do neap tides occur in a lunar month? - ANSWERS2
What's the tidal range? - ANSWERSHigh water - low water
What's slack water? - ANSWERSAt 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? - ANSWERSDiving in slack water
What is ground swell? - ANSWERSWhen wind causing wave action on the surface can be felt on
the sea bed.
When is ground swell the roughest? - ANSWERSWhen the surface winds go against the
tide/stream/current flow.
Is an incoming or outgoing tide better for visibility? - ANSWERSIncoming
What are five factors that can affect visibility? - ANSWERS- 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? - ANSWERSSudden 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?) - ANSWERS- wear polarised sunglasses
- position the boat with the sun behind you
What are four things you should take into account when doing a risk assessment? -
ANSWERSConditions, depth, breathing gas and equipment
As neoprene wetsuits compress, there is a loss of what? - ANSWERSThermal insulation
What precautions can you take to minimise the risk of a dive to yourself and your buddy? -
ANSWERS-don't dive if you're unsure
- service equipment
- back up supply of gas
- pre agreed narcosis check (at agreed depth or gas level)
- practiced rescue skills
-
What are the four practised rescue skills you'll do as a sports diver? - ANSWERSCBL/AS, basic life
support (BLS), rescue breathing (RB), chest compressions (CC)
