Padi Open Water Exam with 100%
Correct Answers 2023
What is the most important rule of scuba diving? - Correct Answer-Do not hold your
breath
Breathe continuously
What are the consequences of breaking the most important rule in scuba diving? -
Correct Answer-Lung over expansion
severe injuries, death
What is a reverse block? - Correct Answer-pain and discomfort caused by expanding air
trapped inside an air space during ascent
What should you do if you feel discomfort during ascent due to air expansion in the
ears, sinuses, stomach, intestines, or teeth? - Correct Answer-slow or stop ascent
descend a metre/few feet and give the trapped air time to work its way out
How does increasing depth affect how long your air supply lasts? - Correct Answer-the
deeper you descend, the denser the air becomes.
It takes 4X the effort to breathe twice as fast
What's the most efficient way to breathe dense air underwater? - Correct Answer-take
deep, slow breaths
Why does a diver need a mask? - Correct Answer-creates an air space, so your eyes
can focus
As you go deeper, you consume air from your scuba cylinder _____ - Correct Answer-
faster
Why does the mask need to enclose your nose? - Correct Answer-to equalize during
your descent to prevent mask squeeze
What 6 features should you look for in a mask? - Correct Answer-1) tempered glass
2) comfortable skirt with a good seal
3) nose or finger pockets
4) low profile
5) Adjustable strap that can be locked in place
6) wide field of vision
When buying a mask, what are the 2 most important features? - Correct Answer-fit and
comfort
, How do you prepare a new mask for use? - Correct Answer-use a soft cloth with a low
abrasion cleaner to remove the protective chemical
adjust the strap
What 3 general maintenance procedures apply to mask care? - Correct Answer-1) rinse
thoroughly with fresh H2o
2) keep out of direct sunlight
3) store in a cool, dry place
Why does a diver need a snorkel? - Correct Answer-1) lets you rest or swim with your
face in the water, without wasting cylinder air
2) makes it easier to breathe when the surface is rough
3) makes it easier to swim back, when you are running low on air
What 3 features does an easy-breathing snorkel have? - Correct Answer-1) large
diameter (bore)
2) Not excessively long
3) Designed with smooth, rounded bends
How do you prepare a snorkel for use? - Correct Answer-1) attach it to the left of your
mask
2) Adjust snorkel keeper, so the top of the snorkel sits at the crown of your head with
the mouthpiece in place
3) remains in your mouth with a relaxed jaw
Why does a diver need fins? - Correct Answer-provide a large surface area, so leg
muscles can move through the water
What are the 2 basic fin styles? - Correct Answer-1) adjustable strap - open heel
2) full-foot
What blade design features may enhance a fin's performance? - Correct Answer-Ribs-
add rigidity, act as vertical stabilizers
Vents- reduce resistance to fin and increase efficiency
channels- increase efficiency by guiding water smoothly
split- designed to thrust water straight back for max efficiency
How do you prepare new fins for use? - Correct Answer-full foot- no preparation
adjustable strap- need to adjust
What 3 considerations do you have when buying a specific type of fin? - Correct
Answer-size
physical ability
where you plan to dive
Correct Answers 2023
What is the most important rule of scuba diving? - Correct Answer-Do not hold your
breath
Breathe continuously
What are the consequences of breaking the most important rule in scuba diving? -
Correct Answer-Lung over expansion
severe injuries, death
What is a reverse block? - Correct Answer-pain and discomfort caused by expanding air
trapped inside an air space during ascent
What should you do if you feel discomfort during ascent due to air expansion in the
ears, sinuses, stomach, intestines, or teeth? - Correct Answer-slow or stop ascent
descend a metre/few feet and give the trapped air time to work its way out
How does increasing depth affect how long your air supply lasts? - Correct Answer-the
deeper you descend, the denser the air becomes.
It takes 4X the effort to breathe twice as fast
What's the most efficient way to breathe dense air underwater? - Correct Answer-take
deep, slow breaths
Why does a diver need a mask? - Correct Answer-creates an air space, so your eyes
can focus
As you go deeper, you consume air from your scuba cylinder _____ - Correct Answer-
faster
Why does the mask need to enclose your nose? - Correct Answer-to equalize during
your descent to prevent mask squeeze
What 6 features should you look for in a mask? - Correct Answer-1) tempered glass
2) comfortable skirt with a good seal
3) nose or finger pockets
4) low profile
5) Adjustable strap that can be locked in place
6) wide field of vision
When buying a mask, what are the 2 most important features? - Correct Answer-fit and
comfort
, How do you prepare a new mask for use? - Correct Answer-use a soft cloth with a low
abrasion cleaner to remove the protective chemical
adjust the strap
What 3 general maintenance procedures apply to mask care? - Correct Answer-1) rinse
thoroughly with fresh H2o
2) keep out of direct sunlight
3) store in a cool, dry place
Why does a diver need a snorkel? - Correct Answer-1) lets you rest or swim with your
face in the water, without wasting cylinder air
2) makes it easier to breathe when the surface is rough
3) makes it easier to swim back, when you are running low on air
What 3 features does an easy-breathing snorkel have? - Correct Answer-1) large
diameter (bore)
2) Not excessively long
3) Designed with smooth, rounded bends
How do you prepare a snorkel for use? - Correct Answer-1) attach it to the left of your
mask
2) Adjust snorkel keeper, so the top of the snorkel sits at the crown of your head with
the mouthpiece in place
3) remains in your mouth with a relaxed jaw
Why does a diver need fins? - Correct Answer-provide a large surface area, so leg
muscles can move through the water
What are the 2 basic fin styles? - Correct Answer-1) adjustable strap - open heel
2) full-foot
What blade design features may enhance a fin's performance? - Correct Answer-Ribs-
add rigidity, act as vertical stabilizers
Vents- reduce resistance to fin and increase efficiency
channels- increase efficiency by guiding water smoothly
split- designed to thrust water straight back for max efficiency
How do you prepare new fins for use? - Correct Answer-full foot- no preparation
adjustable strap- need to adjust
What 3 considerations do you have when buying a specific type of fin? - Correct
Answer-size
physical ability
where you plan to dive
