QUESTIONS & ANSWERS WITH
GUARANTEED PASS!!
When can a sports diver dive with an ocean diver or another sports
diver? - 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? - ANSWER ✔✔- 20m
What's the progressively extended depth of a sports diver? - ANSWER
✔✔- 35m
Is a neap tide small or large? - ANSWER ✔✔- Small
Is a spring tide small or large? - ANSWER ✔✔- Large
What causes a neap tide? - 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.
What causes spring tides? - ANSWER ✔✔- The gravity of the sun and
moon pull in the same direction, creating strong tides.
BSAC SPORTS DIVER THEORY 190 QUESTIONS & ANSWERS WITH GUARANTEED PASS!!
,Neap tides coincide with what? - ANSWER ✔✔- The quarters of the
moon
Spring tides coincide with what? - ANSWER ✔✔- New and full moon
What's the average tide cycle in most places? - ANSWER ✔✔- 12 hours
How many tide cycles in a day? - ANSWER ✔✔- 2
How many high tides in a day? - ANSWER ✔✔- 2
How many low tides are there in a day? - ANSWER ✔✔- 2
How many times do spring tides occur in a lunar month? - ANSWER
✔✔- 2
How many times do neap tides occur in a lunar month? - ANSWER
✔✔- 2
What's the tidal range? - ANSWER ✔✔- High water - low water
What's slack water? - ANSWER ✔✔- At the tides turning point, when
the water speed is at its slowest.
BSAC SPORTS DIVER THEORY 190 QUESTIONS & ANSWERS WITH GUARANTEED PASS!!
, What can make diving on a static site (e.g. a wreck) safer? - ANSWER
✔✔- Diving in slack water
What is ground swell? - ANSWER ✔✔- When wind causing wave
action on the surface can be felt on the sea bed.
When is ground swell the roughest? - ANSWER ✔✔- When the surface
winds go against the tide/stream/current flow.
Is an incoming or outgoing tide better for visibility? - ANSWER ✔✔-
Incoming
What are five factors that can affect visibility? - 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? - 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?) - ANSWER ✔✔- - wear polarised
sunglasses
BSAC SPORTS DIVER THEORY 190 QUESTIONS & ANSWERS WITH GUARANTEED PASS!!