PADI Open Water Diver Certi
m m m m
fication
SCUBA - Answer-- m mmmm
Self contained underwater breathing app
m m m m
aratus
What is the pressure change for each 10m
m m m m m m m
/33ft of depth change? - Answer--
m m m m mmmm
1 bar/1 ata/1 atmosphere
m m m
What is the relationship between my dept
m m m m m m
h in water and the pressure? - Answer--
m m m m m m mmmm
The deeper you go in water, the more the
m m m m m m m m m
pressure increases m
,Pressure is expressed as the weight of air m m m m m m m
What is the relationship between pressur
m m m m m
e, and the volume and the density of air? -
m m m m m m m m m
Answer--
mmmm
As pressure increases, the gas volume de
m m m m m m
creases and the gas density increases m m m m m
If I take a volume of air from one depth to a
m m m m m m m m m m m
nother depth, how much will the volume a
m m m m m m m
nd density change? - Answer--
m m m mmmm
Volume will be 1/ata# m m m
Density will be ata# m m m
What 3 major body air spaces does increa
m m m m m m m
sing pressure affect as I descend? -
m m m m m m
Answer--Ears, sinuses, mask
mmmm m m
,What is a "squeeze"? - Answer--
m m m m mmmm
The discomfort caused by pressure imbal
m m m m m
ance pulling tissue into the air space
m m m m m m
What is "equalization"? - Answer--
m m m mmmm
The addition of air to your air spaces as y
m m m m m m m m m
ou descend
m
How do I equalize as I descend? -
m m m m m m m
Answer--
mmmm
For ears and sinuses, pinch your nose an
m m m m m m m
d blow gently, or wiggle your jaw and swal
m m m m m m m m
low
For mask, blow into it with nose
m m m m m m
How often should I equalize? - Answer--
m m m m m mmmm
Every meter/few feet, BEFORE you feel di
m m m m m m
scomfort
, What should I do if I can't equalize? -
m m m m m m m m
Answer--
mmmm
Stop your descent, signal problem and po
m m m m m m
int to your ear, ascend a bit, and try again
m m m m m m m m m
What can happen if I don't or can't equaliz
m m m m m m m m
e gently and keep descending? -
m m m m m
Answer--Fluid can rupture the eardrum
mmmm m m m m
Bruising around the face can occur
m m m m m
Why does a congestion from a cold or alle
m m m m m m m m
rgy temporarily keep me from diving? -
m m m m m m
Answer--
mmmm
Congestion might block normal air flow,m m m m m m
making equalization difficult or impossibl
m m m m
e
m m m m
fication
SCUBA - Answer-- m mmmm
Self contained underwater breathing app
m m m m
aratus
What is the pressure change for each 10m
m m m m m m m
/33ft of depth change? - Answer--
m m m m mmmm
1 bar/1 ata/1 atmosphere
m m m
What is the relationship between my dept
m m m m m m
h in water and the pressure? - Answer--
m m m m m m mmmm
The deeper you go in water, the more the
m m m m m m m m m
pressure increases m
,Pressure is expressed as the weight of air m m m m m m m
What is the relationship between pressur
m m m m m
e, and the volume and the density of air? -
m m m m m m m m m
Answer--
mmmm
As pressure increases, the gas volume de
m m m m m m
creases and the gas density increases m m m m m
If I take a volume of air from one depth to a
m m m m m m m m m m m
nother depth, how much will the volume a
m m m m m m m
nd density change? - Answer--
m m m mmmm
Volume will be 1/ata# m m m
Density will be ata# m m m
What 3 major body air spaces does increa
m m m m m m m
sing pressure affect as I descend? -
m m m m m m
Answer--Ears, sinuses, mask
mmmm m m
,What is a "squeeze"? - Answer--
m m m m mmmm
The discomfort caused by pressure imbal
m m m m m
ance pulling tissue into the air space
m m m m m m
What is "equalization"? - Answer--
m m m mmmm
The addition of air to your air spaces as y
m m m m m m m m m
ou descend
m
How do I equalize as I descend? -
m m m m m m m
Answer--
mmmm
For ears and sinuses, pinch your nose an
m m m m m m m
d blow gently, or wiggle your jaw and swal
m m m m m m m m
low
For mask, blow into it with nose
m m m m m m
How often should I equalize? - Answer--
m m m m m mmmm
Every meter/few feet, BEFORE you feel di
m m m m m m
scomfort
, What should I do if I can't equalize? -
m m m m m m m m
Answer--
mmmm
Stop your descent, signal problem and po
m m m m m m
int to your ear, ascend a bit, and try again
m m m m m m m m m
What can happen if I don't or can't equaliz
m m m m m m m m
e gently and keep descending? -
m m m m m
Answer--Fluid can rupture the eardrum
mmmm m m m m
Bruising around the face can occur
m m m m m
Why does a congestion from a cold or alle
m m m m m m m m
rgy temporarily keep me from diving? -
m m m m m m
Answer--
mmmm
Congestion might block normal air flow,m m m m m m
making equalization difficult or impossibl
m m m m
e
