Padi Open Water|80 Questions with 100% Correct Answers | Verified | Updated 2024

What is the most important rule of scuba diving? - ️️Do not hold your breath Breathe continuously What are the consequences of breaking the most important rule in scuba diving? - ️️Lung over expansion severe injuries, death What is a reverse block? - ️️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? - ️️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? - ️️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? - ️️take deep, slow breaths Why does a diver need a mask? - ️️creates an air space, so your eyes can focus As you go deeper, you consume air from your scuba cylinder _____ - ️️faster