PADI Open Water Diver Final Exam 2024
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 -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
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
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ -Ans-decrease,
increase
The three most important considerations in choosing scuba equipment are suitability, fit, and -Ans-
comfort
The two basic fin styles are __________ fins -Ans-adjustable and full-foot
My primary considerations when choosing fins are fit and -Ans-blade size
BCD (buoyancy control device) -Ans-holds your kit together and allows you to adjust buoyancy
throughout the dive
Regulator -Ans-delivers breathing air at the surrounding pressure when you inhale and directs exhaled
air into the air
Cylinder -Ans-holds the high-pressure breathing air supplied by your regulator during the dive
Weight System -Ans-holds lead weight to counteract the positive buoyancy of your body and some of
your equipment, with a mechanism for dropping some or all the weight in an emergency
The five components that make up a BCD include -Ans-an inflatable bladder, a cylinder band and
harness/jacket, an LPI (low-pressure inflator) mechanism, an overpressure/quick exhaust valves, and a
weight system
LPI mechanism -Ans-inflates the BCD with air from my scuba cylinder
Burst disk -Ans-a safety device that relieves accidental overpressure by releasing air before reaching the
pressure at which the cylinder would fail
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 -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
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
When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ -Ans-decrease,
increase
The three most important considerations in choosing scuba equipment are suitability, fit, and -Ans-
comfort
The two basic fin styles are __________ fins -Ans-adjustable and full-foot
My primary considerations when choosing fins are fit and -Ans-blade size
BCD (buoyancy control device) -Ans-holds your kit together and allows you to adjust buoyancy
throughout the dive
Regulator -Ans-delivers breathing air at the surrounding pressure when you inhale and directs exhaled
air into the air
Cylinder -Ans-holds the high-pressure breathing air supplied by your regulator during the dive
Weight System -Ans-holds lead weight to counteract the positive buoyancy of your body and some of
your equipment, with a mechanism for dropping some or all the weight in an emergency
The five components that make up a BCD include -Ans-an inflatable bladder, a cylinder band and
harness/jacket, an LPI (low-pressure inflator) mechanism, an overpressure/quick exhaust valves, and a
weight system
LPI mechanism -Ans-inflates the BCD with air from my scuba cylinder
Burst disk -Ans-a safety device that relieves accidental overpressure by releasing air before reaching the
pressure at which the cylinder would fail
