PADI SCUBA STUDY GUIDE |100% CORRECT| [2024/2025]

PADI SCUBA STUDY GUIDE |100% CORRECT| [2024/2025] What are the three basic parts of the PADI Open Water Diver course? What is the purpose of each part? *Ans* 1) Knowledge Development 2) Confined Water Dives 3) Open Water Dives As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as *Ans* 18m/60 ft max recreational depth limit is 40m/130 ft What is the relationship between my depth in water and the pressure? *Ans* pressure increases by one bar every 10 meters Depth Pressure Volume Density 0m/0ft 1 bar/ata 1 X1 10m/33ft 2 bar/ata 1/2 X2 20m/66ft 3 bar/ata 1/3 X3 30m/99ft 4 bar/ata 1/4 X4 40m/132ft 5 bar/ata 1/5 X5 Positive Buoyancy *Ans* Body weighs < displaced volume (floats) Neutral Buoyancy *Ans* Body weighs same as displaced volume (neither floats nor sinks) Negative Buoyancy *Ans* Body weighs more than displaced volume (sink) How is buoyancy affected by ascending? Descending? *Ans* Buoyancy decreases as you descend. Buoyancy increases as you ascend. How does breathing affect buoyancy? *Ans* - Inhaling increases air volume in lungs and increases buoyancy. - Exhaling decreases air volume in lungs and decreases volume. Two pieces of equipment used to control buoyancy *Ans* - BCD - Lead weights What 3 major body air spaces does increasing pressure affect as I descend? *Ans* Ears Sinuses Mask What is a "squeeze"? *Ans* A pressure imbalance where air outside the airspace is greater than air inside the airspace, resulting in pain and discomfort. What is "equalization" ? *Ans* Add air to the air spaces as you descend so pressure in air space equals surrounding pressure. How do I equalize? *Ans* Ears and sinuses: - Pinch and gently blow nose. - Swallow and gently wiggle jaw side to side Mask: - Blow through nose into mask. How often should I equalize? *Ans* Every few feet before you feel discomfort What do I do if I can't equalize