Exam (elaborations)
PADI Open Water Diver Certification Exam – 167 Questions and Answers
PADI Open Water Diver Certification Exam – 167 Questions and Answers
[Show more]
Content preview
PADI Open Water Diver CertificationExam – 167 Questions and Answers
SCUBA - -Self contained underwater breathing apparatus
-What is the pressure change for each 10m/33ft of depth change? - -1 bar/1
ata/1 atmosphere
-What is the relationship between my depth in water and the pressure? - -
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? - -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? - -Volume will be 1/ata#
Density will be ata#
-What 3 major body air spaces does increasing pressure affect as I descend?
- -Ears, sinuses, mask
-What is a "squeeze"? - -The discomfort caused by pressure imbalance
pulling tissue into the air space
-What is "equalization"? - -The addition of air to your air spaces as you
descend
-How do I equalize as I descend? - -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? - -Every meter/few feet, BEFORE you feel
discomfort
-What should I do if I can't equalize? - -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? -
-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? - -Congestion might block normal air flow, making equalization
difficult or impossible
-Why should I never dive with earplugs? - -They create air spaces that you
can't equalize
-What other body air spaces are affected by increasing pressure? How do I
equalize them? - -In filled teeth - go to a dentist
In a dry suit - learn from an instructor
Lungs - breathe normally and continuously
-What is the most important rule in scuba diving? - -Breathe continuously
and never hold your breath
-What can happen if I don't follow the most important rule in scuba diving? -
-Your lungs will over expand and rupture
-What is a "reverse block"? - -When expanding air becomes trapped in your
body air spaces as you ascend
-What should I do if I feel discomfort in my ears, sinuses, stomach,
intestines, or teeth while ascending? - -Stop your ascent and descend a
meter/few feet to reduce discomfort and give trapped air time to work its
way out
-How does depth affect how long my air supply lasts? - -The deeper you are,
the more dense air you breathe, and the faster you use the air in your
cylinder. Compared to the surface, air supply lasts 1/#ata as long along with
other factors
-What's the most efficient way to breathe dense air underwater? - -Take
slow, deep breaths
-How do I breathe to reduce anxiety when under stress? - -Do NOT breathe
faster - keep breathing slowly
-What are my 4 breathing rules as a scuba diver? - -1. Breathe continuously
and never hold your breath
2. Breathe slowly and deeply
3. Don't allow yourself to get winded or out of breath
4. If faced with a problem, stop, and reduce anxiety by breathing slowly and
deeply
-What is buoyancy? - -An upward force acting on an object in the water,
canceling the pull of gravity
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.80. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
63613 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now