PADI OPEN WATER DIVER FINAL
EXAM UPDATED FINAL PAPER 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS GRADE A+
◉ A depth change of 10 meters/33 feet causes a pressure change of.
Answer: 2 bar/ata
◉ if you take 6 liters of air from the surface to 20 metres/66 feet, the
volume will be.
Answer: 2 liters
◉ The density of the air at 20 meters/66 feet would be _______ the
density at the surface of.
Answer: three times
◉ A balloon fully inflated and sealed at 10 meters/33 feet, would
probably ________ during ascent to the surface..
Answer: expand/burst
◉ As I descend, increasing pressure affects my _________.
Answer: mask, ears, sinuses
◉ A squeeze is caused by.
,Answer: a pressure imbalance between the surrounding pressure and an
air space
◉ Equalization is the process of.
Answer: adding air to an air space
◉ I should equalize.
Answer: before i feel pain or discomfort
◉ I'm descending and discovering I can't equalize. The first thing I
would do is.
Answer: 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.
Answer: cancel the dive until I'm well
◉ When scuba diving, normal breathing keeps your lungs equalized to
the surrounding pressure (T/F).
Answer: True
◉ The most important rule in scuba diving is to.
Answer: 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).
Answer: true
◉ During ascent I feel discomfort in my ears. I should.
Answer: stop, descend slightly and allow trapped air to work its way out
◉ Depth 0m/0ft what is the pressure, volume and density.
Answer: 1 bar/ata, 1 volume, 1x density
◉ Depth 10m/33ft what is the pressure, volume and density.
Answer: 2 bar/ata, 1/2 volume, 2x density
◉ Depth 20m/66ft what is the pressure, volume and density.
Answer: 3 bar/ata, 1/3 volume, 3x density
◉ Depth 30m/99ft what is the pressure, volume and density.
Answer: 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.
Answer: 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.
Answer: 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.
Answer: 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.
Answer: 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
EXAM UPDATED FINAL PAPER 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS GRADE A+
◉ A depth change of 10 meters/33 feet causes a pressure change of.
Answer: 2 bar/ata
◉ if you take 6 liters of air from the surface to 20 metres/66 feet, the
volume will be.
Answer: 2 liters
◉ The density of the air at 20 meters/66 feet would be _______ the
density at the surface of.
Answer: three times
◉ A balloon fully inflated and sealed at 10 meters/33 feet, would
probably ________ during ascent to the surface..
Answer: expand/burst
◉ As I descend, increasing pressure affects my _________.
Answer: mask, ears, sinuses
◉ A squeeze is caused by.
,Answer: a pressure imbalance between the surrounding pressure and an
air space
◉ Equalization is the process of.
Answer: adding air to an air space
◉ I should equalize.
Answer: before i feel pain or discomfort
◉ I'm descending and discovering I can't equalize. The first thing I
would do is.
Answer: 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.
Answer: cancel the dive until I'm well
◉ When scuba diving, normal breathing keeps your lungs equalized to
the surrounding pressure (T/F).
Answer: True
◉ The most important rule in scuba diving is to.
Answer: 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).
Answer: true
◉ During ascent I feel discomfort in my ears. I should.
Answer: stop, descend slightly and allow trapped air to work its way out
◉ Depth 0m/0ft what is the pressure, volume and density.
Answer: 1 bar/ata, 1 volume, 1x density
◉ Depth 10m/33ft what is the pressure, volume and density.
Answer: 2 bar/ata, 1/2 volume, 2x density
◉ Depth 20m/66ft what is the pressure, volume and density.
Answer: 3 bar/ata, 1/3 volume, 3x density
◉ Depth 30m/99ft what is the pressure, volume and density.
Answer: 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.
Answer: 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.
Answer: 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.
Answer: 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.
Answer: 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
