PADI Open Water Diver Exam Study Guide Questions And Answers Verified 100% Correct

PADI Open Water Diver Exam Study Guide Questions
And Answers Verified 100% Correct

I want to adjust my mask so the strap rests ________ - ANSWER above my ears, over
the crown of my head

Snorkels are standard equipment for scuba diving because they allow me to breathe
with my face in the water, or in rough conditions, without wasting my scuba air,
especially when I have little scuba air remaining.
a. True
b. False - ANSWER a. True

Some scuba divers prefer a snorkel with a flexible lower portion so it drops out of the
way when not in use.
a. True
b. False - ANSWER a. True

When my snorkel is in my mouth, the tip should be ________ - ANSWER over the
crown of my head

Fins provide a large surface area so my legs can push against the water effectively.
a. True
b. False - ANSWER a. True

The two basic fin styles are ________ fins. - ANSWER adjustable and full-foot

My primary considerations when choosing fins are fit and ________ - ANSWER blade
size

To prepare adjustable fins, I should adjust the straps wearing my wet suit boots.
a. True
b. False - ANSWER a. True

BCD (Buoyancy Control Device) - ANSWER Holds your kit together and allows you to
adjust buoyancy throughout the dive.

Regulator - ANSWER Delivers breathing air at the surrounding pressure when you
inhale and directs exhaled air into the water

Cylinder - ANSWER Hold the high-pressure breathing air supplied by your regulator

,during the dive.

Weight System - ANSWER Holds lead weight to counteract the positive buoyancy of
your body and some of your equipment, with a mechanism for dropping some or all the
weight in an emergency.

Identify the four systems that make up a scuba kit. - ANSWER Cylinder, BCD,
Regulator, Weight System

There's no real benefit to choosing the components of my scuba kit as an
integrated package. a. True
b. False - ANSWER b. False
Although the components are generally interchangeable, choosing your scuba kit as a
package helps you best meet your preferences

Inflatable Bladder - ANSWER very durable bag that you inflate or deflate to change
your buoyancy

Cylinder band and harness/jacket - ANSWER The bladder integrates with an adjustable
harness that holds the cylinder on your back. The bladder may be entirely behind you,
or wrap partially around your waist and/or over your shoulders. With some systems, you
can interchange harnesses and bladders to accommodate sizing and preferences.

LPI (low-pressure inflator) mechanism - ANSWER Usually at the end of a
largediameter hose, the LPI inflates the bladder with air from your cylinder, via the
regulator, when you press a button. Another button allows you to deflate the bladder,
or inflate it orally.

Overpressure/quick exhaust valves - ANSWER to prevent rupturing the bladder due to
overfilling, BCDs have one or more overpressure valves that automatically vent if the
BCD is too full. Some may have "quick dump" valves that let you manually release air,
which is sometimes easier (due to your position in the water) that using the LPI
exhaust.

Shoulder quick release - ANSWER a quick-release buckle on one or both shoulders
makes it easier to get out of your kit

Buoyancy Capacity - ANSWER Most BCDs cover a wide range of diving
circumstances. Your BCD should have ample buoyancy to easily float you and all your
equipment at the surface. You sometimes hear the amount of buoyancy called "lift"
capacity.

The LPI mechanism inflates the BCD with air from my scuba cylinder.
a. True

,b. False - ANSWER a. True

My BCD should have adequate capacity to easily float my equipment and me at
the surface. a. True
b. False - ANSWER a. True

My BCD should fit ________ - ANSWER snugly but not restrict breathing when fully
inflated

My buddy is rinsing a BCD and partially fills the bladder with water. Is this consistent
with recommended BCD care? - ANSWER yes

Submersible Pressure Gauge (SPG) - ANSWER tells you the air pressure remaining in
your cylinder so you can manage your air supply

Alternate Air Source - ANSWER an extra second stage you use for sharing air with a
buddy should the need arise

Pony Bottles - ANSWER small cylinders with their own regulators, so they're
completely separate from your main scuba kit

Second Stage - ANSWER reduces the first stage intermediate pressure to the pressure
around you and delivers air only when you inhale - on demand

First Stage - ANSWER hub of your regulator that is a simple and reliable device that
supplies air to all the other components

Yoke - ANSWER holds the first stage to the cylinder with a clamp system

The most important consideration when choosing a regulator is ________ - ANSWER
ease of breathing

When choosing an alternate air source, a primary consideration involves deciding
________ - ANSWER between independence and simplicity

My SPG is always part of my dive computer.
a. True
b. False - ANSWER b. False
Your SPG may be an independent instrument or it may be integrated into your dive
computer

My local dive pro will usually set up my regulator components.
a. True

, b. False - ANSWER a. True

When setting up and wearing a kit, the alternate air source ________ - ANSWER
secures in the triangle formed by my hips and chin

Regulators need periodic overhauls, typically every year to two years.
a. True
b. False - ANSWER a. True

The ________ is a safety device that relives accidental overpressure by releasing air
before reaching the pressure at which the cylinder would fail. - ANSWER burst disk

A cylinder with a higher working pressure always holds more air than a cylinder with a
lower working pressure.
a. True
b. False - ANSWER b. False
A cylinder's capacity depends upon both its working pressure and its internal capacity

I bring a cylinder aboard a diver boat in preparation for a trip out to a nearby reef. The
normal procedure would be to ________ - ANSWER secure the cylinder in a rack

Scuba cylinders require pressure testing ________ and visual inspections ________ -
ANSWER every 2-5 years, annually

I should have my scuba cylinder filled ________ - ANSWER only by reputable scuba
air stations

The most important feature in my weight system is its ________ - ANSWER quick
release

I must be able to quickly release enough weight to float reliably in an emergency, but
not necessarily all my weight.
a. True
b. False - ANSWER a. True

Trim means having the right ________ of weight. - ANSWER distribution

One reason for wearing more than one weight system is that it is sometimes easier than
handling a single, heavier one.
a. True
b. False - ANSWER a. True

Accessory weights ________ - ANSWER can help you adjust your trim