PADI ADVANCED OPEN WATER TEST ACTUAL TEST COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) A NEW UPDATED VERSION

PADI Open Water Diver Certi
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fication



SCUBA - Answer-- m mmmm




Self contained underwater breathing app
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aratus


What is the pressure change for each 10m
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/33ft of depth change? - Answer--
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1 bar/1 ata/1 atmosphere
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What is the relationship between my dept
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h in water and the pressure? - Answer--
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The deeper you go in water, the more the
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pressure increases m

,Pressure is expressed as the weight of air m m m m m m m




What is the relationship between pressur
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e, and the volume and the density of air? -
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Answer--
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As pressure increases, the gas volume de
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creases and the gas density increases m m m m m




If I take a volume of air from one depth to a
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nother depth, how much will the volume a
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nd density change? - Answer--
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Volume will be 1/ata# m m m




Density will be ata# m m m




What 3 major body air spaces does increa
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sing pressure affect as I descend? -
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Answer--Ears, sinuses, mask
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,What is a "squeeze"? - Answer--
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The discomfort caused by pressure imbal
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ance pulling tissue into the air space
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What is "equalization"? - Answer--
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The addition of air to your air spaces as y
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ou descend
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How do I equalize as I descend? -
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Answer--
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For ears and sinuses, pinch your nose an
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d blow gently, or wiggle your jaw and swal
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low
For mask, blow into it with nose
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How often should I equalize? - Answer--
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Every meter/few feet, BEFORE you feel di
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scomfort

, What should I do if I can't equalize? -
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Answer--
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Stop your descent, signal problem and po
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int to your ear, ascend a bit, and try again
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What can happen if I don't or can't equaliz
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e gently and keep descending? -
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Answer--Fluid can rupture the eardrum
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Bruising around the face can occur
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Why does a congestion from a cold or alle
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rgy temporarily keep me from diving? -
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Answer--
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Congestion might block normal air flow,m m m m m m




making equalization difficult or impossibl
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e