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Question 1

As a newly certified PADI Open Water Diver, you’ll be trained to dive with a buddy as deep as

1. 18 metres/60 feet.
2. 10 metres/30 feet.
3. 40 metres/130 feet.
4. 30 metres/100 feet.

Answer 1

1. 18 metres/60 feet.

Question 2

Certain medical conditions can be hazardous while diving, so it’s important to answer all questions on the Medical Statement honestly and completely.
True / False

Answer 2

True

Question 3

PADI courses are performance-based. This means that to be certified, you must:

1. Meet specific performance requirements.
2. Spend a given number of hours training.
3. Simply pay for the course.

Answer 3

1. Meet specific performance requirements.

Question 4

Failure to complete assigned independent study can create significant delays, and my instructor may have to cancel and reschedule sessions until I complete the assignment.
False / True

Answer 4

True

Question 5

When diving in a new dive environment, two benefits of seeking an orientation, supervision and/or additional training are that it helps me avoid problems and that it helps me enjoy the dive more.
True / False

Answer 5

True

Question 6

As you descend in water the pressure

1. decreases.
2. does not change.
3. increases.

Answer 6

3. increases.

Question 7

A depth change of 10 metres/33 feet causes a pressure change of

1. 1 bar/ata.
2. 2 bar/ata.
3. 3 bar/ata.
4. 4 bar/ata.

Answer 7

1. 1 bar/ata.

Question 8

If you take 6 litres of air from the surface to 20 metres/66 feet, the volume will be _____ litres.

1. 1
2. 2
3. 3
4. 4

Answer 8

2. 2

Question 9

The density of the air in the previous question (If you take 6 litres of air from the surface to 20 metres/66 feet) would be ________ the density at the surface.

1. one-third
2. one-half
3. three times
4. four times

Answer 9

3. three times

Question 10

A balloon fully inflated and sealed at 10 metres/33 feet, would probably _______ during ascent to the surface.

1. shrink (become smaller)
2. burst

Answer 10

2. burst

Question 11

As I descend, increasing pressure affects my (choose all that apply):

1. mask
2. ears
3. skin
4. sinuses

Answer 11

1. mask
2. ears
3. sinuses

Question 12

A squeeze is caused by

1. a pressure imbalance between the surrounding pressure and an air space.
2. wearing my wet suit or other gear too tightly.

Answer 12

1. a pressure imbalance between the surrounding pressure and an air space.

Question 13

Equalization is the process of

1. adding air to an air space.
2. removing air from an air space.
3. reducing the surrounding pressure.
4. increasing the surrounding pressure.

Answer 13

1. adding air to an air space.

Question 14

I should equalize

1. when I feel pain or discomfort.
2. only if I can’t tolerate the pain or discomfort.
3. before I feel pain or discomfort.
4. when I reach the bottom.

Answer 14

3. before I feel pain or discomfort.

Question 15

I’m descending and discover I can’t equalize. The first thing I would do is

1. equalize more forcefully.
2. stop my descent and signal my buddy/the instructor.
3. slow my descent and see if the problem corrects itself.

Answer 15

2. stop my descent and signal my buddy/the instructor.

Question 16

I equalize gently because an extended, forceful equalization can cause permanent damage to my ears and hearing.
True / False

Answer 16

True

Question 17

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

1. take an approved decongestant so I will be able to equalize.
2. plan to take a lot longer as I descend.
3. cancel the dive until I’m well.

Answer 17

3. cancel the dive until I’m well.

Question 18

When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure.
True / False

Answer 18

True

Question 19

The most important rule in scuba diving is to

1. check your air supply every five minutes.
2. breathe continuously and never hold your breath.
3. always dive with a buddy.

Answer 19

2. breathe continuously and never hold your breath.

Question 20

Failure to follow the most important rule in scuba diving can cause severe lung overexpansion injuries, which can result in paralysis or death.
True / False

Answer 20

True

Question 21

During ascent I feel discomfort in my ears. I should

1. continue my ascent at a slightly faster rate.
2. stop, descend slightly and allow trapped air to work its way out.
3. use a decongestant before my next dive.
4. equalize by blowing gently against blocked nostrils.

Answer 21

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

Question 22

My buddy and I descend to 12 metres/40 feet. I would expect to use my air __________ at 6 metres/20 feet.

1. at the same rate as
2. slower than
3. faster than

Answer 22

3. faster than

Question 23

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

1. deeply and slowly.
2. shallowly and rapidly.
3. shallowly and slowly.
4. deeply and rapidly.

Answer 23

1. deeply and slowly.

Question 24

My body responds to anxiety with increased breathing, but slow breathing helps reduce anxiety.
True / False

Answer 24

True

Question 25

Which of the following are among the breathing rules I follow as a diver? (choose all that apply): 1. If faced with a problem, stop, then maintain or restore slow, deep breathing. 2. Breathe continuously and never, ever, hold my breath. 3. Breathe slowly and deeply. 4. Do not allow myself to get winded or out-of-breath.

Answer 25

1. If faced with a problem, stop, then maintain or restore slow, deep breathing. 2. Breathe continuously and never, ever, hold my breath. 3. Breathe slowly and deeply. 4. Do not allow myself to get winded or out-of-breath.

Question 26

Buoyancy is a force that pushes an object in water upward. | True / False

Answer 26

True

Question 27

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. 1. neutrally 2. negatively 3. positively

Answer 27

3. positively

Question 28

Salt water causes more buoyancy than fresh water because it is less dense and weighs less. True / False

Answer 28

False

Question 29

To control my buoyancy, normally I will use my weight system and my 1. scuba cylinder. 2. fins. 3. BCD (Buoyancy Control Device) 4. wet suit.

Answer 29

3. BCD (Buoyancy Control Device)

Question 30

When I descend, my buoyancy tends to _________. When I ascend, it tends to __________. 1. decrease, increase 2. increase, decrease 3. increase, increase 4. decrease, decrease

Answer 30

1. decrease, increase

Question 31

Underwater, when I inhale, my buoyancy 1. increases slightly. 2. doesn’t change. 3. decreases slightly.

Answer 31

1. increases slightly.

Question 32

It is important to master buoyancy control because it affects almost everything I do in and underwater. True / False

Answer 32

True

Question 33

In recreational diving, the buddy system means diving with another diver or divers in a team that provides assistance and safety benefits. True / False

Answer 33

True

Question 34

Overall benefits of the buddy system include (choose all that apply): 1. safety 2. fun 3. practicality

Answer 34

1. safety 2. fun 3. practicality