PADI Open Water Diver Final Exams (Latest 2023/ 2024 Updates STUDY BUNDLE WITH COMPLETE SOLUTIONS) Questions and Verified Answers| 100% Correct| Grade A

PADI Open Water Diver Final Exam (Latest

2023/ 2024 Update) Questions and Verified

Answers with Rationales| 100% Correct|

Grade A

Q: The best place for me to position an alternate air source is

A loose by my side so I can find it fast.

B in the triangle area formed by my chin and the lower corners of my rib cage.

C to the base of my cylinder.

D to the back of my BCD between my shoulder blades and waist.

Answer:

B In the triangle area formed by my chin and the lower corners of my rib cage.

Your alternate air source attaches with a quick release in the triangle area formed by your chin

and the lower corners of your rib cage. Avoid letting your alternate air source dangle unsecured

from your kit.

See Equipment I - Regulators.

Q: Lung overexpansion injuries can be caused by

A scuba diving without a buddy.

B continuing a dive when not properly weighted.

C not drinking enough water before scuba diving.

D holding my breath while scuba diving.

Answer:

D Holding my breath while scuba diving.

Blocking off your lungs by holding your breath and ascending could cause them to overexpand

and rupture, which is a serious injury that could result in paralysis and death. Breathing

continuously while scuba diving keeps air passages open allowing expanding air to escape.

See Being a Diver I - The Effects of Decreasing Pressure on Body Air Spaces.

Q: If my cylinder of air lasts 60 minutes while I am at the surface breathing normally,

assuming all else is the same, how long will it last at 20 meters breathing normally?

A 60 minutes

B 20 minutes

C 15 minutes

D 12 minutes

Answer:

B 20 minutes

60/3=20

For each 10 meters we go down, we have one more atmosphere of pressure. Also, remember to

add in the 1 atmosphere of pressure at the surface.

So, going down to 20 meters, we will have 2 atm + 1 atm = 3 atm of pressure.

Q: How often should I take my scuba cylinder to be visually inspected by my dive center?

A Once a year.

B Once every two years.

C Every six months.

D Every five years.

Answer:

A Once a year.

Have your cylinder visually inspected annually for internal corrosion or other

contamination/damage.

See Equipment I - Cylinders.

Q: The difference between DIN valves and yoke valves is that DIN valves

A are made from durable plastic.

B contain a spring-operated shutoff valve that is held open by cylinder pressure.

C have an o-ring in them.

D have threaded openings to screw the regulator into.

Answer:

D Have threaded openings to screw the regulator into.

With the DIN system, the regulator screws into the valve. The yoke system holds the regulator

first stage to the cylinder with a clamp system.

See Equipment I - Cylinders.

Q: Which of the following is part of proper care for my scuba cylinder?

A Sand and repaint it every year.

B Dry it in the sun.

C Keep some air in it.

D Have it pressure tested every month.

Answer:

C Keep some air in it.

You should keep some air in the cylinder to prevent moisture from entering and causing

corrosion. Also, have it pressure tested at required intervals, usually two to five years. Have it

visually inspected annually. Store it standing in a safe place and keep it away from high heat.

See Equipment I - Cylinder Care.

Q: Refer to the regulator picture. Each regulator part has a number next to it. Please choose the

correct number for the choices below.

regulator first stage,

regulator second stage

alternate air source second stage

low pressure inflator hose for the BCD

instrument console/gauges/computer

Answer:

PADI Open Water Diver Final Exam (Latest

2023/ 2024 Update) 300+ Questions and

Verified Answers| 100% Correct| Grade A

Q: Equalization is the process of ________

Answer:

adding air to an air space

Q: I should equalize ________

Answer:

before I feel pain or discomfort

Q: I'm descending and discover I can't equalize. The first thing I would do is ________

Answer:

stop my descent and signal my buddy/the instructor

Q: I equalize gently because an extended, forceful equalization can cause permanent damage to

my ears and hearing.

a. True

b. False

Answer:

a. True

Q: On a day I plan to go diving, I wake up with my sinuses blocked due to a cold or allergy. I

should ________

Answer:

cancel the dive until I'm well

Q: When scuba diving, normal breathing keeps your lungs equalized to the surrounding

pressure.

a. True

b. False

Answer:

a. True

Q: The most important rule in scuba diving is to ________

Answer:

breathe continuously and never hold your breath

Q: Failure to follow the most important rule in scuba diving can cause severe lung

overexpansion injuries, which can result in paralysis or death.

a. True

b. False

Answer:

a. True

Q: During ascent I feel discomfort in my ears. I should ________

Answer:

stop, descend slightly and allow trapped air to work its way out

Q: My buddy and I descend to 12 metres/40 feet. I would expect to use my air ________ at 6

metres/20 feet.

Answer:

faster than

Q: The most efficient way to breathe dense air underwater is to breathe ________

Answer:

deeply and slowly

Q: My body responds to anxiety with increased breathing, but slow breathing helps reduce

anxiety.

a. True

b. False

Answer:

a. True

Q: What are the breathing rules I must follow as a diver?

Answer:

- Breathe continuously and never, ever, hold my breath

- Breathe slowly and deeply

- Do not allow myself to get winded or out-of-breath

- If faced with a problem, stop, then maintain or restore slow, deep breathing

Q: Buoyancy is a force that pushes an object in water upward.

a. True

b. False

Answer:

a. True

Q: My sunglasses case falls out of my pocket into the water, but fortunately, it floats so I

retrieve it. I would say my sunglasses case is ________ buoyant.

Answer:

positively

Q: Salt water causes more buoyancy than fresh water because it is less dense and weighs less.

a. True

b. False

Answer:

b. False

Salt water causes more buoyancy because it is more dense and weighs more; buoyancy results

from the weight of the water displaced

Q: To control my buoyancy, normally I will use my weight system and my ________

Answer:

BCD

Q: When I descend, my buoyancy tends to ________. When I ascend, it tends to ________.

Answer:

decrease, increase

Q: Underwater, when I inhale, my buoyancy ________

PADI Open Water Diver Final Exam

|Questions and Verified Answers | 100%

Correct| Grade A (Latest 2023/ 2024 Update)

Q: The most efficient way to breathe dense air underwater is to breathe

Answer:

deeply and slowly

Q: Buoyancy

Answer:

a force that pushes an object in water upward

Q: Salt water causes more buoyancy than fresh water because it is _____ dense and weighs

_____

Answer:

more

Q: When I descend, my buoyancy tends to ________. When I ascend, it tends to _______

Answer:

decrease, increase

Q: The three most important considerations in choosing scuba equipment are suitability, fit, and

Answer:

comfort

Q: The two basic fin styles are __________ fins

Answer:

adjustable and full-foot

Q: My primary considerations when choosing fins are fit and

Answer:

blade size

Q: BCD (buoyancy control device)

Answer:

holds your kit together and allows you to adjust buoyancy throughout the dive

Q: Regulator

Answer:

delivers breathing air at the surrounding pressure when you inhale and directs exhaled air into

the air

Q: Cylinder

Answer:

holds the high-pressure breathing air supplied by your regulator during the dive

Q: 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

Q: The five components that make up a BCD include

Answer:

an inflatable bladder, a cylinder band and harness/jacket, an LPI (low-pressure inflator)

mechanism, an overpressure/quick exhaust valves, and a weight system

Q: LPI mechanism

Answer:

inflates the BCD with air from my scuba cylinder

Q: Burst disk

Answer:

a safety device that relieves accidental overpressure by releasing air before reaching the pressure

at which the cylinder would fail

Q: scuba cylinders require pressure testing _______ and visual inspection _________

Answer:

every 2-5 years, annually

PADI Open Water Diver Final 2023/ 2024

Exam |Questions and Verified Answers |

100% Correct| Grade A (Latest Update)

Q: Depth 20m/66ft what is the pressure, volume and density

Answer:

3 bar/ata, 1/3 volume, 3x density

Q: Depth 30m/99ft what is the pressure, volume and density

Answer:

4 bar/ata, 1/4 volume, 4x density

Q: As I descend, I need to equalize air spaces. Which of the following are accepted ways of

equalizing my ears?

a. Block my nose and attempt to gently blow through it.

b. Swallow and wiggle the jaw from side to side

c. Block my nose and blow forcefully for an extended period

Answer:

Block my nose and attempt to gently blow through it + swallow and wiggle the jaw from side to

side

Q: I should equalize

a. early and often, before I feel discomfort

b. when I begin to feel discomfort

c. only if I experience pain

Answer:

early and often, before I feel discomfort

Q: I should not dive with a cold, nor use medications to dive with a cold. True or False

Answer:

True

Q: Failure to follow the most important rule in scuba diving can cause serious lung

overexpansion (lung rupture) injuries, which in turn can cause paralysis and death. True or False

Answer:

True

Q: During a descent, I try to equalize but discover I'm having trouble doing so. Which of the

following is correct?

a. Slow my descent, signal my buddy to slow down and equalize more forcefully

b. Stop my descent, signal my buddy to slow down and try again

c. Continue my descent while equalizing repeatedly

d. Signal my buddy, ascend to the surface and start my descent over the

Answer:

Stop my descent, signal my buddy to slow down and try again

Q: My buddy and I are planning a dive to 18m/60ft. We would expect our air supply to last

_______ at 10m/33ft, all else being the same.

a. longer than

b. shorter than

c. the same as

Answer:

shorter than

Q: During a dive, I swim hard to keep up with the fish that interests me, but shortly I begin to

feel like I can't get enough air. The correct action would be to:

a. Signal my buddy and head up to the surface

b. Use the regulator purge button to boost air flow

c. Stop all activity and rest to restore proper deep, slow breathing

Answer:

Stop all activity and rest to restore proper deep, slow breathing

Q: An object that is neutrally buoyant in fresh water will ______ in salt water.

a. sink

b. float

c. be neutrally buoyant

Answer:

float

Q: The ocean has more

Answer:

buoyancy compared to fresh water

Q: The three overall benefits of the buddy system are practicality, safety, and fun. True or False

Answer:

True

Q: The primary considerations when choosing any piece of scuba gear are:

a. suitability

b. brand

c. fit

d. comfort

Answer:

suitability, fit, and comfort

Q: I'm planning to dive the following week and am checking my gear. I put my kit together and

notice that my regulator seems to breathe harder than I remember. The appropriate action would

be to:

a. Have it inspected and serviced as needed by a professional before using it

b. Go ahead and use it, but limit my dive depth to 10metres/33feet

c. Wash it in fresh water and see if the problem persists

Answer:

have it inspected and serviced as needed by a professional before using it

Q: There is no way to use a DIN regulator on a yoke cylinder valve. True/False

Answer:

False

Q: It is important to master buoyancy control because it allows me to control whether I

descend, float or am neutrally buoyant. I adjust my buoyancy frequently while diving. True/False

Answer:

True

Q: I take a colorful fish identification slate with me while diving. Looking at the slate

underwater at 12metres/40feet, I would expect the slate to look

a. smaller/farther away

b. more colorful

c. less colorful

d. larger/closer

Answer: