SDI (Scuba Diving International) Part 2 Questions and Answers | Latest Update 2024/2025
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Course
SDI
Institution
SDI
What is the absolute pressure (in atmospheres/bars, ATM) at 20 meters(66
feet)
~~> 2 ATM
What will be the volume in a ball that is filled with two cubic feet of air at 99
feet when it's taken to the surface?
~~> 8 cubic feet
How many more times dense is the air in a balloon at 4 ATM...
SDI (Scuba Diving International) Part 2
Questions and Answers | Latest
Update 2024/2025
What is the absolute pressure (in atmospheres/bars, ATM) at 20 meters(66
feet)
✓ ~~> 2 ATM
What will be the volume in a ball that is filled with two cubic feet of air at 99
feet when it's taken to the surface?
✓ ~~> 8 cubic feet
How many more times dense is the air in a balloon at 4 ATM/bar compared
to the air density at the surface?
✓ ~~> 4x (4 times)
If a scuba cylinder lasts 2 hours at sea level, how long will it last at 20 meters
(66 feet)?
✓ ~~> 40 minutes
How often should a scuba diver equalize during a descent?
✓ ~~> at the surface and every couple of feet as you descend.
Master01 | September, 2024/2025 | Latest update
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