Padi Open Water Exam Questions And Answers

Padi Open Water Exam Questions And Answers What is the most important rule of scuba diving? - ANS Do not hold your breath Breathe continuously What are the consequences of breaking the most important rule in scuba diving? - ANS Lung over expansion severe injuries, death What is a reverse block? - ANS 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? - ANS 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? - ANS 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? - ANS take deep, slow breaths Why does a diver need a mask? - ANS creates an air space, so your eyes can focus