PADI Open Water Exam Study Guide ACTUAL EXAM LATEST 2025 WITH QUESTIONS AND
CORRECT VERIFIED ANSWERS GRADED A+ GUARANTEED PASS
What is the most important rule of scuba diving? - (answer)Do not hold your breath
Breathe continuously
What are the consequences of breaking the most important rule in scuba diving? - (answer)Lung over
expansion
severe injuries, death
What is a reverse block? - (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? - (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? - (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? - (answer)take deep, slow breaths
Why does a diver need a mask? - (answer)creates an air space, so your eyes can focus
As you go deeper, you consume air from your scuba cylinder _____ - (answer)faster
Why does the mask need to enclose your nose? - (answer)to equalize during your descent to prevent
mask squeeze
What 6 features should you look for in a mask? - (answer)1) tempered glass
, PADI Open Water Exam Study Guide ACTUAL EXAM LATEST 2025 WITH QUESTIONS AND
CORRECT VERIFIED ANSWERS GRADED A+ GUARANTEED PASS
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? - (answer)fit and comfort
How do you prepare a new mask for use? - (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? - (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? - (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? - (answer)1) large diameter (bore)
2) Not excessively long
3) Designed with smooth, rounded bends
How do you prepare a snorkel for use? - (answer)1) attach it to the left of your mask
CORRECT VERIFIED ANSWERS GRADED A+ GUARANTEED PASS
What is the most important rule of scuba diving? - (answer)Do not hold your breath
Breathe continuously
What are the consequences of breaking the most important rule in scuba diving? - (answer)Lung over
expansion
severe injuries, death
What is a reverse block? - (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? - (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? - (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? - (answer)take deep, slow breaths
Why does a diver need a mask? - (answer)creates an air space, so your eyes can focus
As you go deeper, you consume air from your scuba cylinder _____ - (answer)faster
Why does the mask need to enclose your nose? - (answer)to equalize during your descent to prevent
mask squeeze
What 6 features should you look for in a mask? - (answer)1) tempered glass
, PADI Open Water Exam Study Guide ACTUAL EXAM LATEST 2025 WITH QUESTIONS AND
CORRECT VERIFIED ANSWERS GRADED A+ GUARANTEED PASS
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? - (answer)fit and comfort
How do you prepare a new mask for use? - (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? - (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? - (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? - (answer)1) large diameter (bore)
2) Not excessively long
3) Designed with smooth, rounded bends
How do you prepare a snorkel for use? - (answer)1) attach it to the left of your mask
