PADI Open Water Diver Certification (All Solutions Verified)

SCUBA correct answers Self contained underwater breathing apparatus What is the pressure change for each 10m/33ft of depth change? correct answers 1 bar/1 ata/1 atmosphere What is the relationship between my depth in water and the pressure? correct answers The deeper you go in water, the more the pressure increases Pressure is expressed as the weight of air What is the relationship between pressure, and the volume and the density of air? correct answers As pressure increases, the gas volume decreases and the gas density increases If I take a volume of air from one depth to another depth, how much will the volume and density change? correct answers Volume will be 1/ata# Density will be ata# What 3 major body air spaces does increasing pressure affect as I descend? correct answers Ears, sinuses, mask What is a "squeeze"? correct answers The discomfort caused by pressure imbalance pulling tissue into the air space What is "equalization"? correct answers The addition of air to your air spaces as you descend How do I equalize as I descend? correct answers For ears and sinuses, pinch your nose and blow gently, or wiggle your jaw and swallow For mask, blow into it with nose How often should I equalize? correct answers Every meter/few feet, BEFORE you feel discomfort What should I do if I can't equalize? correct answers Stop your descent, signal problem and point to your ear, ascend a bit, and try again What can happen if I don't or can't equalize gently and keep descending? correct answers Fluid can rupture the eardrum Bruising around the face can occur Why does a congestion from a cold or allergy temporarily keep me from diving? correct answers Congestion might block normal air flow, making equalization difficult or impossible