Open Water Dive Test

Front 1

True/False
An object is neutrally bouyant when it displaces an amount of water less than it's own weight?

Back 1

False

Front 2

Why is bouyancy control, both on the surface and under water, is one ofthe most important skills you can master?

Back 2

On the surface: Saves Energy - safety
Underwater - Stay off the bottom - May Damage Sea Life

Front 3

True/False
Because water is denser thanair, the pressure change for a given distance ascent or decent is significantly greater in the water than in the air.

Back 3

True

Front 4

The same object would be more bouyant in_____________ than it would be in___________

Back 4

Salt Water

Fresh Water

Front 5

What is a Squeeze?

Back 5

A condition that causes pain and discomfort when the pressure inside an air space of your body is less than the pressure outside an air space.

Front 6

Describe the techniques used to equalize air spaces during descent?

Back 6

a. Block your nose and attempt to gently blow through it
b. Swallow and wiggle the jaw from side to side
c. Block your nose and attempt to gently blow through it while swallowing and wiggling the jaw from side to side

Front 7

State how often you should equazlize your air spaces during descent?

Back 7

Every few feet

Front 8

Define Reverse Block

Back 8

A condition that occurs when expanding air cannot escappethe body air space during acent, causing pain and discomfort.

Front 9

What action should you take if you feel discomfort during acent due to air expansion?

Back 9

Go back down

Front 10

State the most important rule in scuba diving?

Back 10

Do not hold your breath - Breathe Continuously

Front 11

What is the best way to prevent water from entering your scuba tank?

Back 11

Never empty it

Front 12

What is the most important feature for consideration when purchasing a regulator?

Back 12

Ease of Breathing

Front 13

When Scuba Diving why must your nose be enclosed in the mask?

Back 13

The mask create a space you must equalize during descent to prevent mask squeeze.

Front 14

Underwater objects appear _____by 33%, making them appear _____ and or ______.

Back 14

Magnified
Larger
Closer

Front 15

Since it travels about 4xs faster in the water than in air, you will have difficulty determining the origin of ____ underwater.

Back 15

Sound

Front 16

Water condust heat away fgorm the body _____ than air does.

Back 16

Faster

Front 17

Describe the proper breathing pattern for diving?

Back 17

Consistently slow and deep

Front 18

To pervent overexertion:

Back 18

1. Move slowly and avoid extended strenuous activity
2. Know your physical limits

Front 19

What should you do if you become over exerted while diving?

Back 19

Underwater: Stop all activity-
Breathe Slowly-Rest
At the Surface: Establish Bouyancy - Drop Weights, Stop Moving- Rest- Catch your breath

Front 20

Describe four techniques used for air control?

Back 20

a. Use your tongue as a splash guard by palcing the tip onthe roof of your mouth
b. Inhale slowly
c. Avoid rapid, jerky movement
d. Inhale cautiously

Front 21

The most important feature of any weight system is?

Back 21

A quick Release Mechanism

Front 22

Why should you not wear a tight fitted hood?

Back 22

The hood can compress arteries in your neck, which can cause your heart to slow down

Front 23

An alternate air source should be?

Back 23

Conspicously Marked

Front 24

Where should you attach an alternate air source to your body?

Back 24

Under your chin and the lower corners of your rib cage.

Front 25

True/False
A Diving knife is used as a tool (to measure, pry dig, cut and pound) but is not intended to be, nor should it be used as a weapon.

Back 25

True

Front 26

How do you check for proper Weighting?

Back 26

Float eye level
Exhale to go under water

Front 27

What factors effect the viisbility of water?

Back 27

a. Weather
b. Water Movement
c. Ambient Pressure
d. Suspended Particles

Front 28

What do you do if you are caught in a current at the surface?

Back 28

Establish Bouyancy and Swim Parallel to the to the shore to clear the rip area.
Signal for help

Front 29

If a current is present you should generally begn your dive?

Back 29

Against the current

Front 30

A rip current can be recognized as a line of turbid, foamy water moving?

Back 30

Seaward

Front 31

List three ways to prevcent or control most diving problems that occur at the surface"?

Back 31

1. Dive within your limitations
2. Relax while you dive
3. Esatblish and maintain positive bouyancy while on the surface.

Front 32

What are the 5 low-air/out-of-air emergency procedures in order of priority from 1-5?

Back 32

1. Normal Ascent
2. Alternate Air Source
3. Controlled Emergency Swimming Ascent
4. Buddy Breathing Ascent
5. Bouyant Emergency Ascent

Front 33

If you become entangled underwater, you should?

Back 33

Stop, think and then work slowly and calmly to free yourself.

Front 34

A detailed log book isthe proof of experience documentation typically requested in many dive situations. List 2

Back 34

1. For additional diver training
2. When diving at resorts or on boats

Front 35

Ho do you prevent problems with contaminated air?

Back 35

Buy air from a reputable dealer

Front 36

List the some ways divers prevent problems with oxegen

Back 36

1. Dont have your cylnders filled with enriched air
2. Don't use a tank marked as enriched air
3. Don't exceed recreational dive limits

Front 37

What are the following symtoms related to:
Impaired Coordination
Foolish Behavior

Back 37

Nitrogen Narcosis

Front 38

What can you do to prevent Nitrogen Narcosis

Back 38

Avoid Deep Dives

Front 39

List some symptoms that relate to decompression sickness

Back 39

Moderate Tingling
Weaklness and prolonged fatigue

Front 40

Outline the firstaid procedure for assisting someone with decompression illness

Back 40

Lie down and breathe Oxegen, contact local emergency medical care, Contact local emergency dive center

Front 41

True/False
When using either version of the dive planner, you must ascend at a rate that does not exceed 18 meters/60 ft per minute.

Back 41

True

Front 42

What is the maximum limit for Open Water Dives?

Back 42

18m/60ft

Front 43

Maximum depth limit for divers with Deep Diver training?

Back 43

40m/130ft

Front 44

What is the Maximum depth limit for divers with training and experience beyond the Open Water Diver level

Back 44

30m/100ft

Front 45

List 3 required situations in which a safety stop should be made

Back 45

1. Diving 30m/100ft or Deeper
2. You reach any limit on your dive table or computer
3. Your dive comes within 3 pressure groups on the NLD RDP

Front 46

If you exceed a no-decompression limit or an adjusted no-decompression limit by no more than 5 minutes, you sholud slowly ascend at a rate not faster that 18m/60ft per minute to 5m/15ft and remain there for____ prior to surfacing. After reaching the surface, do not dive for at least _______ hours

Back 46

8 minutes, 6 hours

Front 47

State the altitude above which the Recreational Dive Planners should not be used unless special procedures are followed.

Back 47

300m/1000ft

Front 48

To be reasonably sure that you remain symtom free from decompression sickness when flying in a commercial jet airlinner after diving you should wait?

Back 48

12 hours

Front 49

What is the procedure you must follow when planning a dive in cold water or under strenuous conditions using the Recreational Dive Planner?

Back 49

Plan the dive as if it was 4m/10ft deeper