BSAC sports diver theory
Study online at https://quizlet.com/_e47dyg
1. When can a sports diver dive with an ocean diver or another sports diver?: -
In conditions already encountered by the ocean diver during their training and under
the supervision of a dive manager.
2. What's the initial limited depth for a sports diver?: 20m
3. What's the progressively extended depth of a sports diver?: 35m
4. Is a neap tide small or large?: Small
5. Is a spring tide small or large?: Large
6. What causes a neap tide?: 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.
7. What causes spring tides?: The gravity of the sun and moon pull in the same
direction, creating strong tides.
8. Neap tides coincide with what?: The quarters of the moon
9. Spring tides coincide with what?: New and full moon
10. What's the average tide cycle in most places?: 12 hours
11. How many tide cycles in a day?: 2
12. How many high tides in a day?: 2
13. How many low tides are there in a day?: 2
14. How many times do spring tides occur in a lunar month?: 2
15. How many times do neap tides occur in a lunar month?: 2
16. What's the tidal range?: High water - low water
17. What's slack water?: At the tides turning point, when the water speed is at its
slowest.
18. What can make diving on a static site (e.g. a wreck) safer?: Diving in slack
water
19. What is ground swell?: When wind causing wave action on the surface can be
felt on the sea bed.
20. When is ground swell the roughest?: When the surface winds go against the
tide/stream/current flow.
21. Is an incoming or outgoing tide better for visibility?: Incoming
22. What are five factors that can affect visibility?: - 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.
23. What's a thermocline?: Sudden change in temperature, may look oily/ shiny
and produce a change in visibility
, BSAC sports diver theory
Study online at https://quizlet.com/_e47dyg
24. What can you do to reduce the effect of glare on the surface (as a boat crew
member, not a diver?): - wear polarised sunglasses
- position the boat with the sun behind you
25. What are four things you should take into account when doing a risk
assessment?: Conditions, depth, breathing gas and equipment
26. As neoprene wetsuits compress, there is a loss of what?: Thermal insulation
27. What precautions can you take to minimise the risk of a dive to yourself
and your buddy?: -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
-
28. What are the four practised rescue skills you'll do as a sports diver?: -
CBL/AS, basic life support (BLS), rescue breathing (RB), chest compressions (CC)
29. What's the in water life support sequence? (6): - make bouyant
- shout for help
- extend airway
- give 1 minute RB's
- tow to shore or RB while waiting for boat
- de-kit and land/recover
30. What does IPO stand for?: Immersion Pulmonary Oedema
31. What can IPO be confused with?: Drowning, as both involve fluid in the lungs.
32. What's the difference between IPO and pulmonary oedema?: IPO = PO but
when in water
33. What is IPO?: Fluid going from alveolar capillaries into the sacs, as compression
of the legs forces blood to collect in the chest.
34. What are risk factors for IPO?: High blood pressure, strenuous exercise,
excessive hydration.
35. What are signs of IPO?: Breathing difficulties (even when on the surface, not
undergoing strenuous exercise) , confusion e.g signalling out of air when it's fine, or
a belief that their regulator isn't working properly.
36. What are the six treatment points for IPO?: Get out the water, sit upright
if conscious, be given oxygen, kept warm, DO NOT GIVE FLUIDS, seek medical
attention.
37. What's BLS?: Basic life support
38. What are the four things to check for under the response section of
DRABCD?: A alert
V response to voice
Study online at https://quizlet.com/_e47dyg
1. When can a sports diver dive with an ocean diver or another sports diver?: -
In conditions already encountered by the ocean diver during their training and under
the supervision of a dive manager.
2. What's the initial limited depth for a sports diver?: 20m
3. What's the progressively extended depth of a sports diver?: 35m
4. Is a neap tide small or large?: Small
5. Is a spring tide small or large?: Large
6. What causes a neap tide?: 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.
7. What causes spring tides?: The gravity of the sun and moon pull in the same
direction, creating strong tides.
8. Neap tides coincide with what?: The quarters of the moon
9. Spring tides coincide with what?: New and full moon
10. What's the average tide cycle in most places?: 12 hours
11. How many tide cycles in a day?: 2
12. How many high tides in a day?: 2
13. How many low tides are there in a day?: 2
14. How many times do spring tides occur in a lunar month?: 2
15. How many times do neap tides occur in a lunar month?: 2
16. What's the tidal range?: High water - low water
17. What's slack water?: At the tides turning point, when the water speed is at its
slowest.
18. What can make diving on a static site (e.g. a wreck) safer?: Diving in slack
water
19. What is ground swell?: When wind causing wave action on the surface can be
felt on the sea bed.
20. When is ground swell the roughest?: When the surface winds go against the
tide/stream/current flow.
21. Is an incoming or outgoing tide better for visibility?: Incoming
22. What are five factors that can affect visibility?: - 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.
23. What's a thermocline?: Sudden change in temperature, may look oily/ shiny
and produce a change in visibility
, BSAC sports diver theory
Study online at https://quizlet.com/_e47dyg
24. What can you do to reduce the effect of glare on the surface (as a boat crew
member, not a diver?): - wear polarised sunglasses
- position the boat with the sun behind you
25. What are four things you should take into account when doing a risk
assessment?: Conditions, depth, breathing gas and equipment
26. As neoprene wetsuits compress, there is a loss of what?: Thermal insulation
27. What precautions can you take to minimise the risk of a dive to yourself
and your buddy?: -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
-
28. What are the four practised rescue skills you'll do as a sports diver?: -
CBL/AS, basic life support (BLS), rescue breathing (RB), chest compressions (CC)
29. What's the in water life support sequence? (6): - make bouyant
- shout for help
- extend airway
- give 1 minute RB's
- tow to shore or RB while waiting for boat
- de-kit and land/recover
30. What does IPO stand for?: Immersion Pulmonary Oedema
31. What can IPO be confused with?: Drowning, as both involve fluid in the lungs.
32. What's the difference between IPO and pulmonary oedema?: IPO = PO but
when in water
33. What is IPO?: Fluid going from alveolar capillaries into the sacs, as compression
of the legs forces blood to collect in the chest.
34. What are risk factors for IPO?: High blood pressure, strenuous exercise,
excessive hydration.
35. What are signs of IPO?: Breathing difficulties (even when on the surface, not
undergoing strenuous exercise) , confusion e.g signalling out of air when it's fine, or
a belief that their regulator isn't working properly.
36. What are the six treatment points for IPO?: Get out the water, sit upright
if conscious, be given oxygen, kept warm, DO NOT GIVE FLUIDS, seek medical
attention.
37. What's BLS?: Basic life support
38. What are the four things to check for under the response section of
DRABCD?: A alert
V response to voice
