PADI Open Water Diver Final Exam – Comprehensive Study Guide, Key Concepts & Practice
Questions Review
As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as -
correct answer ✔✔18 metres/60 feet
As you descend in water, the pressure - correct answer ✔✔increases
A depth change of 10 metres/33 feet causes a pressure change of - correct answer ✔✔1 bar/ata
(atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - correct
answer ✔✔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 - correct answer ✔✔burst
A squeeze is caused by - correct answer ✔✔a pressure imbalance between the surrounding
pressure and an air space
Equalization is the process of - correct answer ✔✔adding air to an air space
The most important rule in scuba diving is to - correct answer ✔✔breathe continuously and
never hold your breath
During ascent I feel discomfort in my ears. I should - correct answer ✔✔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 - correct answer ✔✔faster than
The most efficient way to breathe dense air underwater is to breathe - correct answer
✔✔deeply and slowly
Buoyancy - correct answer ✔✔a force that pushes an object in water upward
Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____
- correct answer ✔✔more
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ - correct
answer ✔✔decrease, increase
The three most important considerations in choosing scuba equipment are suitability, fit, and -
correct answer ✔✔comfort
The two basic fin styles are __________ fins - correct answer ✔✔adjustable and full-foot
My primary considerations when choosing fins are fit and - correct answer ✔✔blade size
BCD (buoyancy control device) - correct answer ✔✔holds your kit together and allows you to
adjust buoyancy throughout the dive
Regulator - correct answer ✔✔delivers breathing air at the surrounding pressure when you
inhale and directs exhaled air into the air
Cylinder - correct answer ✔✔holds the high-pressure breathing air supplied by your regulator
during the dive
Questions Review
As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as -
correct answer ✔✔18 metres/60 feet
As you descend in water, the pressure - correct answer ✔✔increases
A depth change of 10 metres/33 feet causes a pressure change of - correct answer ✔✔1 bar/ata
(atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - correct
answer ✔✔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 - correct answer ✔✔burst
A squeeze is caused by - correct answer ✔✔a pressure imbalance between the surrounding
pressure and an air space
Equalization is the process of - correct answer ✔✔adding air to an air space
The most important rule in scuba diving is to - correct answer ✔✔breathe continuously and
never hold your breath
During ascent I feel discomfort in my ears. I should - correct answer ✔✔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 - correct answer ✔✔faster than
The most efficient way to breathe dense air underwater is to breathe - correct answer
✔✔deeply and slowly
Buoyancy - correct answer ✔✔a force that pushes an object in water upward
Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____
- correct answer ✔✔more
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ - correct
answer ✔✔decrease, increase
The three most important considerations in choosing scuba equipment are suitability, fit, and -
correct answer ✔✔comfort
The two basic fin styles are __________ fins - correct answer ✔✔adjustable and full-foot
My primary considerations when choosing fins are fit and - correct answer ✔✔blade size
BCD (buoyancy control device) - correct answer ✔✔holds your kit together and allows you to
adjust buoyancy throughout the dive
Regulator - correct answer ✔✔delivers breathing air at the surrounding pressure when you
inhale and directs exhaled air into the air
Cylinder - correct answer ✔✔holds the high-pressure breathing air supplied by your regulator
during the dive
