Section 2 Flashcards
Moving in water / Streamlining
Reduce drag, wearing your gear close
Swimming relatively level in water + neutrality buoyant
Move slow and steady
Why do you get cold?
Water absorbs energy 20 times faster than air
Hypothermia
Shiver continuously, when you get too close
If you are too cool for comfort, end the dive
Warmest exposure suit
Dry suit
Breathing effectively
Slow and steady, so you reduce the amount of dead air that you breath in
Clearing residual air from your snorkel or mouth piece
- Inhalte slowly and look down
2. Touch tongue to top of mouth to block air
Overextertion
Signal to buddy and rest
Safety check
Begin with review and friend
- bCD
- Weight
- releases
- Air ?(Test regular, check air etc)
- final check
What to do when you get separated from your buddy
Look for no more than a minute, then reunite at the surface
It’s your responsibility to stay close to the surface
Surface rules
Keep mouth piece or snorkel in, keep mask on
Keep buddy system
Short swim - face down
Longer swim - on back
5 point descend
- confirm buddy is ready
- orient yourself toward mark on surface or bottom
- switch to regulator
- switch dive compute on
- signal descent and deflate bcd
5 point ascend
- signal up
- check dive computer for limits
- look up and your your bcd deflator hose, do not add air though. Just swim up
- ascend slowly
- look up and turn slowly
To control your ascend air, release air from bcd
Ascend rate
10 meters per minute
Never more than 18 meters per minute
Safety stop
Hold ascent at around 6 meters to go to neutral
Stay at 5 meters for about 3 minutes
Cutting tools
Knife
Diving tool
Shears
Z-knifes
