PADI Open Water Diver Final Exam5-2024
As you descend in water the pressure - Ans-increases
A depth change of 10 meters/33 feet causes a pressure change of - Ans-2 bar/ata
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - Ans-2 liters
The density of the air at 20 meters/66 feet would be _______ the density at the surface of - Ans-three
times
A balloon fully inflated and sealed at 10 meters/33 feet, would probably ________ during ascent to the
surface. - Ans-expand/burst
As I descend, increasing pressure affects my _________ - Ans-mask, ears, sinuses
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
I should equalize - Ans-before i feel pain or discomfort
I'm descending and discovering I can't equalize. The first thing I would do is - Ans-stop my descent and
signal my buddy/the instructor
On a day I plan to go diving, I wake up with my sinuses blocked due to a cold or allergy. I should - Ans-
cancel the dive until I'm well
When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure (T/F) -
Ans-True
,The most important rule in scuba diving is to - Ans-breathe continuously and never hold your breath
Failure to follow the most important rule in scuba diving can cause severe lung overexpansion injuries,
which can result in paralysis or death (T/F) - Ans-true
During ascent I feel discomfort in my ears. I should - Ans-stop, descend slightly and allow trapped air to
work its way out
Depth 0m/0ft what is the pressure, volume and density - Ans-1 bar/ata, 1 volume, 1x density
Depth 10m/33ft what is the pressure, volume and density - Ans-2 bar/ata, 1/2 volume, 2x density
Depth 20m/66ft what is the pressure, volume and density - Ans-3 bar/ata, 1/3 volume, 3x density
Depth 30m/99ft what is the pressure, volume and density - Ans-4 bar/ata, 1/4 volume, 4x density
As I descend, I need to equalize air spaces. Which of the following are accepted ways of equalizing my
ears?
a. Block my nose and attempt to gently blow through it.
b. Swallow and wiggle the jaw from side to side
c. Block my nose and blow forcefully for an extended period - Ans-Block my nose and attempt to gently
blow through it + swallow and wiggle the jaw from side to side
I should equalize
a. early and often, before I feel discomfort
b. when I begin to feel discomfort
c. only if I experience pain - Ans-early and often, before I feel discomfort
I should not dive with a cold, nor use medications to dive with a cold. True or False - Ans-True
, Failure to follow the most important rule in scuba diving can cause serious lung overexpansion (lung
rupture) injuries, which in turn can cause paralysis and death. True or False - Ans-True
During a descent, I try to equalize but discover I'm having trouble doing so. Which of the following is
correct?
a. Slow my descent, signal my buddy to slow down and equalize more forcefully
b. Stop my descent, signal my buddy to slow down and try again
c. Continue my descent while equalizing repeatedly
d. Signal my buddy, ascend to the surface and start my descent over the - Ans-Stop my descent, signal
my buddy to slow down and try again
My buddy and I are planning a dive to 18m/60ft. We would expect our air supply to last _______ at
10m/33ft, all else being the same.
a. longer than
b. shorter than
c. the same as - Ans-shorter than
During a dive, I swim hard to keep up with the fish that interests me, but shortly I begin to feel like I
can't get enough air. The correct action would be to:
a. Signal my buddy and head up to the surface
b. Use the regulator purge button to boost air flow
c. Stop all activity and rest to restore proper deep, slow breathing - Ans-Stop all activity and rest to
restore proper deep, slow breathing
An object that is neutrally buoyant in fresh water will ______ in salt water.
a. sink
b. float
c. be neutrally buoyant - Ans-float
The ocean has more - Ans-buoyancy compared to fresh water
As you descend in water the pressure - Ans-increases
A depth change of 10 meters/33 feet causes a pressure change of - Ans-2 bar/ata
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - Ans-2 liters
The density of the air at 20 meters/66 feet would be _______ the density at the surface of - Ans-three
times
A balloon fully inflated and sealed at 10 meters/33 feet, would probably ________ during ascent to the
surface. - Ans-expand/burst
As I descend, increasing pressure affects my _________ - Ans-mask, ears, sinuses
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
I should equalize - Ans-before i feel pain or discomfort
I'm descending and discovering I can't equalize. The first thing I would do is - Ans-stop my descent and
signal my buddy/the instructor
On a day I plan to go diving, I wake up with my sinuses blocked due to a cold or allergy. I should - Ans-
cancel the dive until I'm well
When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure (T/F) -
Ans-True
,The most important rule in scuba diving is to - Ans-breathe continuously and never hold your breath
Failure to follow the most important rule in scuba diving can cause severe lung overexpansion injuries,
which can result in paralysis or death (T/F) - Ans-true
During ascent I feel discomfort in my ears. I should - Ans-stop, descend slightly and allow trapped air to
work its way out
Depth 0m/0ft what is the pressure, volume and density - Ans-1 bar/ata, 1 volume, 1x density
Depth 10m/33ft what is the pressure, volume and density - Ans-2 bar/ata, 1/2 volume, 2x density
Depth 20m/66ft what is the pressure, volume and density - Ans-3 bar/ata, 1/3 volume, 3x density
Depth 30m/99ft what is the pressure, volume and density - Ans-4 bar/ata, 1/4 volume, 4x density
As I descend, I need to equalize air spaces. Which of the following are accepted ways of equalizing my
ears?
a. Block my nose and attempt to gently blow through it.
b. Swallow and wiggle the jaw from side to side
c. Block my nose and blow forcefully for an extended period - Ans-Block my nose and attempt to gently
blow through it + swallow and wiggle the jaw from side to side
I should equalize
a. early and often, before I feel discomfort
b. when I begin to feel discomfort
c. only if I experience pain - Ans-early and often, before I feel discomfort
I should not dive with a cold, nor use medications to dive with a cold. True or False - Ans-True
, Failure to follow the most important rule in scuba diving can cause serious lung overexpansion (lung
rupture) injuries, which in turn can cause paralysis and death. True or False - Ans-True
During a descent, I try to equalize but discover I'm having trouble doing so. Which of the following is
correct?
a. Slow my descent, signal my buddy to slow down and equalize more forcefully
b. Stop my descent, signal my buddy to slow down and try again
c. Continue my descent while equalizing repeatedly
d. Signal my buddy, ascend to the surface and start my descent over the - Ans-Stop my descent, signal
my buddy to slow down and try again
My buddy and I are planning a dive to 18m/60ft. We would expect our air supply to last _______ at
10m/33ft, all else being the same.
a. longer than
b. shorter than
c. the same as - Ans-shorter than
During a dive, I swim hard to keep up with the fish that interests me, but shortly I begin to feel like I
can't get enough air. The correct action would be to:
a. Signal my buddy and head up to the surface
b. Use the regulator purge button to boost air flow
c. Stop all activity and rest to restore proper deep, slow breathing - Ans-Stop all activity and rest to
restore proper deep, slow breathing
An object that is neutrally buoyant in fresh water will ______ in salt water.
a. sink
b. float
c. be neutrally buoyant - Ans-float
The ocean has more - Ans-buoyancy compared to fresh water
