Dive Safety
T/F: You should equalize your ears and other air spaces while descending
True!
Planning in a dive should include what 3 things at minimum?
1. What to do in an emergency
2. Maximum time & depth
3. Review of communication procedures
If you become overexerted in the water (swimming against current or stress), what should you do?
Stop, breathe, and rest.
Why should you avoid the maximum limits of your dive tables or computer?
people vary in their susceptibility to decompression sickness, and dive computers run on different algorithms.
What is the most important rule in Scuba Diving?
Never hold your breath.
T/F: If you begin shivering underwater, increase your activity to warm up.
False, end the dive!
The greatest pressure change for humans is at what depth range?
Less 2 atmospheres, or 15-33ft.
What diving skill responds to a regulator failure?
Free-flow regulator breathing
A diver suspected of having decompression sickness should:
stop diving, breathe emergency oxygen and seek emergency medical care.
If you accidentally become entangled, you should:
avoid turning and struggling, and work slowly and carefully to free yourself.
In cold water or under strenuous conditions, plan your dive as though it were:
4m / 10ft deeper than actual
Name the different types of BCDs.
Jacket Inflate, Back Inflate, Backplate
If you accidentally exceed a no decompression limit by less than five minutes:
slowly ascend to 5 metres/15 feet and make an eight minute stop prior to surfacing, then discontinue diving for at least six hours.
How do you obtain positive buoyancy at the surface in an emergency?
What reduces the chance of accidental injury by an aquatic animal?
- Never tease or intentionally disturb an animal
- Move slowly and carefully
- Don't touch!!!!!
What are two ways a BCD can fail? And how do you respond?
1. Auto-Inflation: Remove LPI Hose
2. LPI Failure: Oral inflation underwater
If you were to run out of air at 30 feet and your buddy were not immediately available,
your best option would be:
Performing a controlled emergency swimming ascent (CESA).
Explain the steps of a pre-dive safety check. (Bonus: why are they important?)
BWRAF:
(B) BCD checks, (W) Weight Systems, (R) Releases, (A) Air, (F) Final Checks
Unless local laws or regulations state differently, you should stay within ________ of a dive flag,
and boaters and water-skiers should stay _________ away from it.
15 m/50 ft., 30-60 m/100-200 ft.
What is the first thing you should do when diving with new equipment?
Read. The. Manual.