PADI Open Water Diver Final Exam 1
Questions & Answers
As you descend in water the pressure - ANSWERSincreases
A depth change of 10 meters/33 feet causes a pressure change of - ANSWERS2 bar/ata
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - ANSWERS2
liters
The density of the air at 20 meters/66 feet would be _______ the density at the surface of -
ANSWERSthree times
A balloon fully inflated and sealed at 10 meters/33 feet, would probably ________ during
ascent to the surface. - ANSWERSexpand/burst
As I descend, increasing pressure affects my _________ - ANSWERSmask, ears, sinuses
A squeeze is caused by - ANSWERSa pressure imbalance between the surrounding pressure and
an air space
Equalization is the process of - ANSWERSadding air to an air space
I should equalize - ANSWERSbefore i feel pain or discomfort
,I'm descending and discovering I can't equalize. The first thing I would do is - ANSWERSstop 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
- ANSWERScancel the dive until I'm well
When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure
(T/F) - ANSWERSTrue
The most important rule in scuba diving is to - ANSWERSbreathe 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) - ANSWERStrue
During ascent I feel discomfort in my ears. I should - ANSWERSstop, descend slightly and allow
trapped air to work its way out
Depth 0m/0ft what is the pressure, volume and density - ANSWERS1 bar/ata, 1 volume, 1x
density
Depth 10m/33ft what is the pressure, volume and density - ANSWERS2 bar/ata, 1/2 volume, 2x
density
Depth 20m/66ft what is the pressure, volume and density - ANSWERS3 bar/ata, 1/3 volume, 3x
density
Depth 30m/99ft what is the pressure, volume and density - ANSWERS4 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 - ANSWERSBlock 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 - ANSWERSearly and often, before I feel discomfort
I should not dive with a cold, nor use medications to dive with a cold. True or False -
ANSWERSTrue
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 -
ANSWERSTrue
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 - ANSWERSStop my
descent, signal my buddy to slow down and try again
Questions & Answers
As you descend in water the pressure - ANSWERSincreases
A depth change of 10 meters/33 feet causes a pressure change of - ANSWERS2 bar/ata
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - ANSWERS2
liters
The density of the air at 20 meters/66 feet would be _______ the density at the surface of -
ANSWERSthree times
A balloon fully inflated and sealed at 10 meters/33 feet, would probably ________ during
ascent to the surface. - ANSWERSexpand/burst
As I descend, increasing pressure affects my _________ - ANSWERSmask, ears, sinuses
A squeeze is caused by - ANSWERSa pressure imbalance between the surrounding pressure and
an air space
Equalization is the process of - ANSWERSadding air to an air space
I should equalize - ANSWERSbefore i feel pain or discomfort
,I'm descending and discovering I can't equalize. The first thing I would do is - ANSWERSstop 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
- ANSWERScancel the dive until I'm well
When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure
(T/F) - ANSWERSTrue
The most important rule in scuba diving is to - ANSWERSbreathe 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) - ANSWERStrue
During ascent I feel discomfort in my ears. I should - ANSWERSstop, descend slightly and allow
trapped air to work its way out
Depth 0m/0ft what is the pressure, volume and density - ANSWERS1 bar/ata, 1 volume, 1x
density
Depth 10m/33ft what is the pressure, volume and density - ANSWERS2 bar/ata, 1/2 volume, 2x
density
Depth 20m/66ft what is the pressure, volume and density - ANSWERS3 bar/ata, 1/3 volume, 3x
density
Depth 30m/99ft what is the pressure, volume and density - ANSWERS4 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 - ANSWERSBlock 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 - ANSWERSearly and often, before I feel discomfort
I should not dive with a cold, nor use medications to dive with a cold. True or False -
ANSWERSTrue
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 -
ANSWERSTrue
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 - ANSWERSStop my
descent, signal my buddy to slow down and try again
