PADI Open Water Diver Final Exam
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As a newly certified PADI Open Water Diver, I will be trained to dive
with buddy as deep as
Ans: 18 metres/60 feet
As you descend in water, the pressure
Ans: increases
A depth change of 10 metres/33 feet causes a pressure change of
Ans: 1 bar/ata (atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the
volume will be
,2 | Page
Ans: 2 litres (the density of the air would be three times the density at the
surface)
A balloon fully inflated and sealed at 10 metres/33 feet, would
probably ______ during ascent to the surface
Ans: burst
A squeeze is caused by
Ans: a pressure imbalance between the surrounding pressure and an air
space
Equalization is the process of
Ans: adding air to an air space
The most important rule in scuba diving is to
Ans: breathe continuously and never hold your breath
, 3 | Page
During ascent I feel discomfort in my ears. I should
Ans: stop, descend slightly, and allow trapped air to work its way out
My buddy and I descend to 12 metres/40 feet. I would expect to use
my air _____ at 6 metres/20 feet
Ans: faster than
The most efficient way to breathe dense air underwater is to breathe
Ans: deeply and slowly
Buoyancy
Ans: a force that pushes an object in water upward
Salt water causes more buoyancy than fresh water because it is
_____ dense and weighs _____
Ans: more