PADI Open Water Diver Certification
Exam Questions and Answers (Latest
2024)
SCUBA - Correct Answer ✅Self contained underwater
breathing apparatus
What is the pressure change for each 10m/33ft of depth
change? - Correct Answer ✅1 bar/1 ata/1 atmosphere
What is the relationship between my depth in water and the
pressure? - Correct Answer ✅The deeper you go in water,
the more the pressure increases
Pressure is expressed as the weight of air
What is the relationship between pressure, and the volume
and the density of air? - Correct Answer ✅As pressure
increases, the gas volume decreases and the gas density
increases
If I take a volume of air from one depth to another depth, how
much will the volume and density change? - Correct Answer
✅Volume will be 1/ata#
Density will be ata#
,PADI Open Water Diver Certification
Exam Questions and Answers (Latest
2024)
What 3 major body air spaces does increasing pressure affect
as I descend? - Correct Answer ✅Ears, sinuses, mask
What is a "squeeze"? - Correct Answer ✅The discomfort
caused by pressure imbalance pulling tissue into the air
space
What is "equalization"? - Correct Answer ✅The addition of
air to your air spaces as you descend
How do I equalize as I descend? - Correct Answer ✅For
ears and sinuses, pinch your nose and blow gently, or wiggle
your jaw and swallow
For mask, blow into it with nose
How often should I equalize? - Correct Answer ✅Every
meter/few feet, BEFORE you feel discomfort
,PADI Open Water Diver Certification
Exam Questions and Answers (Latest
2024)
What should I do if I can't equalize? - Correct Answer
✅Stop your descent, signal problem and point to your ear,
ascend a bit, and try again
What can happen if I don't or can't equalize gently and keep
descending? - Correct Answer ✅Fluid can rupture the
eardrum
Bruising around the face can occur
Why does a congestion from a cold or allergy temporarily
keep me from diving? - Correct Answer ✅Congestion might
block normal air flow, making equalization difficult or
impossible
Why should I never dive with earplugs? - Correct Answer
✅They create air spaces that you can't equalize
What other body air spaces are affected by increasing
pressure? How do I equalize them? - Correct Answer ✅In
filled teeth - go to a dentist
, PADI Open Water Diver Certification
Exam Questions and Answers (Latest
2024)
In a dry suit - learn from an instructor
Lungs - breathe normally and continuously
What is the most important rule in scuba diving? - Correct
Answer ✅Breathe continuously and never hold your breath
What can happen if I don't follow the most important rule in
scuba diving? - Correct Answer ✅Your lungs will over
expand and rupture
What is a "reverse block"? - Correct Answer ✅When
expanding air becomes trapped in your body air spaces as
you ascend
What should I do if I feel discomfort in my ears, sinuses,
stomach, intestines, or teeth while ascending? - Correct
Answer ✅Stop your ascent and descend a meter/few feet to
reduce discomfort and give trapped air time to work its way
out
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