.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
PADI Open Water Diver Exam Prep 2026/2027 |
Complete Study Guide | Practice Questions,
Detailed Answer Explanations & Comprehensive
Scuba Diving Certification Review
As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as
18 metres/60 feet
As you descend in water, the pressure
increases
A depth change of 10 metres/33 feet causes a pressure change of
1 bar/ata (atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be
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
burst
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
A squeeze is caused by
a pressure imbalance between the surrounding pressure and an air space
Equalization is the process of
adding air to an air space
The most important rule in scuba diving is to
breathe continuously and never hold your breath
During ascent I feel discomfort in my ears. I should
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
faster than
The most efficient way to breathe dense air underwater is to breathe
deeply and slowly
Buoyancy
a force that pushes an object in water upward
, .//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____
more
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______
decrease, increase
The three most important considerations in choosing scuba equipment are suitability, fit, and
comfort
The two basic fin styles are __________ fins
adjustable and full-foot
My primary considerations when choosing fins are fit and
blade size
BCD (buoyancy control device)
holds your kit together and allows you to adjust buoyancy throughout the dive
Regulator
PADI Open Water Diver Exam Prep 2026/2027 |
Complete Study Guide | Practice Questions,
Detailed Answer Explanations & Comprehensive
Scuba Diving Certification Review
As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as
18 metres/60 feet
As you descend in water, the pressure
increases
A depth change of 10 metres/33 feet causes a pressure change of
1 bar/ata (atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be
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
burst
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
A squeeze is caused by
a pressure imbalance between the surrounding pressure and an air space
Equalization is the process of
adding air to an air space
The most important rule in scuba diving is to
breathe continuously and never hold your breath
During ascent I feel discomfort in my ears. I should
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
faster than
The most efficient way to breathe dense air underwater is to breathe
deeply and slowly
Buoyancy
a force that pushes an object in water upward
, .//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____
more
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______
decrease, increase
The three most important considerations in choosing scuba equipment are suitability, fit, and
comfort
The two basic fin styles are __________ fins
adjustable and full-foot
My primary considerations when choosing fins are fit and
blade size
BCD (buoyancy control device)
holds your kit together and allows you to adjust buoyancy throughout the dive
Regulator
