Open Water Dive PADI Exam Questions With In-
Depth Solutions 2025\2026 A+ Grade.
How often should a cylinder undergo hydrostatic testing?
- accurate answers s-Every 5 years
How should tanks be stored?
- accurate answers s-With pressure in them to keep the water out
How deep can a person dive after open water certification?
- accurate answers s-60 ft
How many feet is 1 atmosphere?
- accurate answers s-33 ft (10 meters)
1 bar/1 atmosphere
What happens to gas volume as you go deeper?
- accurate answers s-Gas volume decreases and density increases
How does air volume relate to atmospheric pressure?
- accurate answers s-If you go from the surface to 33 feet you double the
pressure to 2 bar/ata (air plus 1 water)
If you go 20 meters/66 feet, what is the bar/ata and how does it relate to the
air volume and density?
- accurate answers s-The pressure is 3 bar/ata. Air volume is 1/3 the surface
volume and density triples
You start your descent with a balloon filled with 3 liters of air. At 10
meters/33 feet, what is the volume and density?
- accurate answers s-Volume is 1.5 liters. Density doubles
You have 1 liter of air at 30 meters/99 feet. What would the volume and
density be at the surface?
- accurate answers s-The pressure at 99 feet is 4 bar/ata. The pressure at the
surface is 1 bar/ata so the pressure is 1/4 the pressure at 99 feet. One liter of
air brought to the surface from 99 feet will expand to 4 liters at the surface.
The air density will 1/4 the density at 99 feet
, What would happen to a balloon fully inflated at 33 feet during during ascent
to the surface?
- accurate answers s-It would burst
How do you equalize your mask on descent?
- accurate answers s-Blow air through your nose
A squeeze is caused by
- accurate answers s-A pressure imbalance between the surrounding pressure
and an air space
Equalization is the process of
- accurate answers s-Adding air to an air space
How should you breathe when ascending?
- accurate answers s-Breathe normally. You release expanding air with each
exhalation
What should you do when the regulator is not in your mouth?
- accurate answers s-Blow bubbles to keep from holding your breath
What is a reverse block or reverse squeeze?
- accurate answers s-When expanding air becomes trapped in a body air
space. Can occur when decongestants wear off under water (occurs during
ascent)
What is the most important scuba rule?
- accurate answers s-Never hold your breath
During ascent I feel discomfort in my ears. I should
- accurate answers s-Stop, descend slightly and allow trapped air to work it's
way out
How is air supply proportionate to depth?
- accurate answers s-Because scuba provides air at the surrounding pressure,
as you go deeper, each breath takes more air. The deeper you are, the faster
you use air
Depth Solutions 2025\2026 A+ Grade.
How often should a cylinder undergo hydrostatic testing?
- accurate answers s-Every 5 years
How should tanks be stored?
- accurate answers s-With pressure in them to keep the water out
How deep can a person dive after open water certification?
- accurate answers s-60 ft
How many feet is 1 atmosphere?
- accurate answers s-33 ft (10 meters)
1 bar/1 atmosphere
What happens to gas volume as you go deeper?
- accurate answers s-Gas volume decreases and density increases
How does air volume relate to atmospheric pressure?
- accurate answers s-If you go from the surface to 33 feet you double the
pressure to 2 bar/ata (air plus 1 water)
If you go 20 meters/66 feet, what is the bar/ata and how does it relate to the
air volume and density?
- accurate answers s-The pressure is 3 bar/ata. Air volume is 1/3 the surface
volume and density triples
You start your descent with a balloon filled with 3 liters of air. At 10
meters/33 feet, what is the volume and density?
- accurate answers s-Volume is 1.5 liters. Density doubles
You have 1 liter of air at 30 meters/99 feet. What would the volume and
density be at the surface?
- accurate answers s-The pressure at 99 feet is 4 bar/ata. The pressure at the
surface is 1 bar/ata so the pressure is 1/4 the pressure at 99 feet. One liter of
air brought to the surface from 99 feet will expand to 4 liters at the surface.
The air density will 1/4 the density at 99 feet
, What would happen to a balloon fully inflated at 33 feet during during ascent
to the surface?
- accurate answers s-It would burst
How do you equalize your mask on descent?
- accurate answers s-Blow air through your nose
A squeeze is caused by
- accurate answers s-A pressure imbalance between the surrounding pressure
and an air space
Equalization is the process of
- accurate answers s-Adding air to an air space
How should you breathe when ascending?
- accurate answers s-Breathe normally. You release expanding air with each
exhalation
What should you do when the regulator is not in your mouth?
- accurate answers s-Blow bubbles to keep from holding your breath
What is a reverse block or reverse squeeze?
- accurate answers s-When expanding air becomes trapped in a body air
space. Can occur when decongestants wear off under water (occurs during
ascent)
What is the most important scuba rule?
- accurate answers s-Never hold your breath
During ascent I feel discomfort in my ears. I should
- accurate answers s-Stop, descend slightly and allow trapped air to work it's
way out
How is air supply proportionate to depth?
- accurate answers s-Because scuba provides air at the surrounding pressure,
as you go deeper, each breath takes more air. The deeper you are, the faster
you use air
