question

Any time you enter the water to scuba dive, there is risk of an accident.

answer

True

question

The responsibility of your well being depends on:

answer

You

question

A pre-existing medical contraindication might disqualify you from scuba diving.

answer

True

question

Areas of concern are:

answer

Circulatory Respiratory Air spaces All of the above

question

You need to be a skilled swimmer to learn to be a scuba diver.

answer

false

question

The main concern in diving is

answer

equipment malfunction equipment misuse hazardous marine life boats

question

Your entry-level NAUI scuba diver certification is a "license to "

answer

Learn

question

Which of the following physical factors can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving?

answer

all of the above

question

Physical fitness is an important consideration for scuba divers because it helps to prevent diving accidents due to:

answer

exhaustion

question

Completing this entry level scuba certification course makes you knowledgeable and skillful enough to dive safely in or at:

answer

open water with conditions similar to those in which you were trained

question

Factors that can affect the breathing ease of a snorkel are:

answer

Length and Diameter

question

When selecting a face mask, the most important thing to consider is:

answer

Proper seal and fit

question

Snorkels over 15 inches in length are not recommended primarily because:

answer

they have too much dead air space

question

When buying or renting equipment for diving, the most important consideration is:

answer

its fit on your body

question

Diving equipment should be:

answer

rinsed thoroughly, dried and stored in a cool place

question

Open heel fins are usually the fins of choice for scuba divers because:

answer

they may be used in a wide variety of enviromental conditions

question

In the United States, scuba cylinders must be internally inspected every _____ and pressure tested every _

answer

1 year, 5 years

question

Scuba tanks should always have some pressure in them to prevent:

answer

moisture from entering

question

According to the Department of Transportation regulations, scuba tanks must be hydrostatically tested every _______

answer

5 years

question

Two types of materials that scuba tanks are made from are steel and _________.

answer

aluminum

question

Markings on scuba tanks include:

answer

date of hydrostatic test, serial number, type of material

question

When rinsing a regulator it is best to:

answer

leave the regulator attached to the tank or have the dust cap in place

question

you should have your regulator serviced by a certified repair technician:

answer

at least once per year

question

The stage of the regulator which reduces tank pressure is:

answer

the first stage

question

The _________ line is the direction of travel line on the compass.

answer

lubber

question

A _____ calculates your remaining allowable bottom time while diving.

answer

dive computer

question

A diving watch must be able to withstand pressure and measure _____.

answer

elapsed time

question

Proper maintenance of instruments includes:

answer

Rinse them in fresh water at the end of each diving day. Have them inspected and serviced annually by a qualified technician. Do not subject them to extreme temperature changes.

question

Three main types of _____ are back floatation, jacket, and horse collar.

answer

bcs

question

Essential features found on all BCs are:

answer

power inflator mechanism overpressure relief valve inflator/deflator hose

question

You should rinse your BC internally because _____ inside your BC can cause damage.

answer

salt water dirt water chlorinated water

question

Weighting systems are used by the diver primarily to:

answer

offset the positive buoyancy created by the wet suit

question

The most important feature of a weight belt is _____.

answer

quick release

question

A _____ compensates for the compression of a wetsuit as you descend underwater.

answer

compensating weight belt

question

The primary purpose of the exposure suit is to:

answer

preserve body heat during dives

question

A _____ is suitable for warm, tropical diving.

answer

dive skin

question

A _____ is made from foam neoprene.

answer

wetsuit

question

A _____ uses undergarments for insulation.

answer

dry suit

question

You do not need special training to use a dry suit.

answer

false

question

The dive knife is used primarily as a _____ for digging, cutting, pounding and prying.

answer

tool

question

When you fly a dive flag, you must _____.

answer

dive near the flag remove the flag when divers are not in the water fly from your surface support station

question

You should record all dives in your logbook because _____.

answer

you might be required to show proof of experience there are laws in parts to the world that require you to log dives dive operators may review your logbook before they will provide services

question

An additional accessory that will be useful to you is _____.

answer

underwater slate goodie bag spare parts kit

question

If you must walk in fins, you must walk _____.

answer

backwards

question

To prevent losing your balance when donning fins, you can _____.

answer

use the figure-4 position sit down use your buddy's shoulder for support

question

Two recommended methods of clearing your snorkel are the blast and the _____ clear.

answer

displacement

question

The _____ clear of your snorkel requires the least amount of energy.

answer

displacement

question

When you mount your regulator on your cylinder, it should be lined up so that the inlet to the first stage of the regulator lines up with the outlet from the cylinder valve.

answer

true

question

A scuba cylinder valve is turned on when you rotate it in a clockwise direction.

answer

false

question

You and your buddy should don your scuba units _____.

answer

as a team

question

To ensure that it is clear to be ditched if necessary, you should put the weight belt on _____.

answer

after the scuba unit

question

The last thing to check before making a giant stride or any water entry is that:

answer

area below is clear

question

The objective of an entry is to _____.

answer

enter the water with minmal effort

question

If you are entering the water from a small boat, use the _____ entry.

answer

back roll

question

If the distance to the water is several feet, use the _____ entry.

answer

giant stride

question

If you are able to sit at the edge of the water, use the _____ entry.

answer

seated side

question

When you clear water from a mask with a purge valve, you tilt your head:

answer

forward

question

When you clear water from a mask without a purge valve, you tilt your head:

answer

backward

question

Whenever the mouthpiece of your regulator is out of your mouth, you must continually exhale a small stream of bubbles.

answer

true

question

You can clear your regulator second stage of water by doing the _____ or the _____ clear.

answer

blast, purge

question

You should check your submersible pressure gauge every _____ minutes in shallow water and more frequently in deeper water.

answer

5

question

The following rate of ascent for diving is acceptable when using the USN/NAUI dive tables:

answer

30 feet per minute

question

Which is the most effective way to descend while maintaining orientation and attempting equalization of the ears?

answer

feet first

question

When conducting a buoyancy check, neutral buoyancy or proper weighting is attained when, with a normal breath, you float at or near:

answer

eye level

question

The optimal method of knowing that you have air in an emergency is to:

answer

carry a contingency supply

question

The preferred action to take if you find yourself alone and out of air at 30 feet in open water is:

answer

emergency swimming ascent

question

If during a dive you and your buddy become separated, you should:

answer

spend no more than one minute looking then surface

question

You should dive _____ your buddy.

answer

side-by-side with

question

A diver on the surface waving his/her hand overhead and thrashing violently indicates:

answer

distress

question

Tthe NAUI Diving Hand Signals are standard in the United States diving community and are usually recognized in other countries as well.

answer

ture

question

You may need to don or remove your equipment in the water if:

answer

the boat you are using is too small to allow equipment handling an item of gear needs adjusted if your scuba unit gets caught in fishing line

question

When donning your cylinder at the surface and donning your cylinder underwater, the primary difference is that you want to be:

answer

positively buoyant at the surface and negatively buoyant at the bottom

question

Examples of natural navigation aids divers may use during dives include:

answer

ripple marks in the sand sun brightness/available light bottom contours

question

A reciprocal course is made when your outbound course is a straight line and halfway through your dive you make a _____ turn.

answer

180 degrees

question

Because of refraction, objects underwater appear _________ and _________ when the diver is looking through his/her mask.

answer

Larger; closer

question

A diver's body heat is lost through conduction (primarily) at a rate of approximately _________ times more rapidly than in air.

answer

25

question

Sound travels about _________ times faster in water than in air.

answer

4

question

The first color lost in the spectrum upon descent during a dive is _____.

answer

red

question

If you are diving wearing an exposure suit, you should _____ to safely control buoyancy as you descend.

answer

add air to your buoyancy device

question

Your body weight does not affect your buoyancy.

answer

false

question

If you are weighted to be neutral in salt water and you dive in fresh water with the same amount of weight, you will float.

answer

false

question

During descent, a diver's buoyancy tends to _____.

answer

decrease

question

Atmospheric pressure at sea level is:

answer

14.7 pounds per square inch/1.0 atmosphere absolute

question

A sealed balloon filled with air that has a volume of 6 cubic inches at 99 feet will have a volume of _____ cubic inches at 33 feet.

answer

12

question

Sea water weighs _____ pounds per cubic foot.

answer

64.0

question

Which gas law best explains diving medical problems such as ear and sinus squeeze?

answer

boyles law

question

What type of pressure is defined as gauge (water) pressure plus atmospheric (air) pressure?

answer

absolute

question

The absolute pressure in the ocean at 53 feet (16 meters) is:

answer

2.6 atmospheres absolute

question

If a diver's surface air consumption rate is 25 psi per minute, what would be the consumption rate at 66 feet of seawater?

answer

75 psi per minute

question

A depth that is equivalent to one atmosphere in the ocean is equal to _________ feet in sea water and _________ feet in fresh water.

answer

33; 34

question

Two methods of measuring air pressure are BAR or:

answer

pounds per square inch

question

Pressure in the middle ear is equalized through a part of the body called the:

answer

eustachian tube

question

A diver's inability to equalize his/her ears during ascent could cause:

answer

a block or reverse block

question

A diver with blood and mucous in his/her mask upon surfacing will most likely have:

answer

sinus squeeze

question

The three general types of injury resulting from lung overexpansion are air embolism, pneumothorax and _____.

answer

tissue emphysema

question

An irregular breathing pattern (skip breathing) while diving will possibly cause:

answer

carbon dioxide excess

question

Generally, for maximum efficiency, your breathing should be:

answer

slightly slower and deeper than you normally breathe

question

To prevent air embolism, a diver should:

answer

breathe normally at all times during ascent and never hold breath

question

Your first dive of the day is planned for a depth of 18 meters (60 feet), begins at 9:30 a.m., and lasts for 23 minutes. The actual depth of the dive is 16.7 meters (55 feet). You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes, you surface at 9:56 a.m. and remain out of the water until 10:40 a.m. Your next dive is to a depth of 15 meters (50 feet) for 23 minutes. You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes. You surface at 11:06 a.m. and have a SIT of 1 hour and 50 minutes. At 12:56 p.m., you begin your third dive to a planned depth of 12 meters (40 feet), but you end up reaching a depth of 13.7 meters (45 feet) with an ADT of 30 minutes. You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes and you surface from the third dive at 1:29 p.m. What is your final Letter Group?

answer

J

question

Your first dive of the day begins at 8:00 a.m. and is to a depth of 18 meters (60 feet) for 31 minutes. You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes. The second dive begins at 10:05 a.m., is to a depth of 16.8 meters (55 feet), and lasts for 24 minutes. You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes and surface at 10:32 a.m. Your third dive, which begins at 12:36 p.m., is to 15 meters (50 feet) for 31 minutes. You make a precautionary decompression stop at 5 meters (15 feet) for 3 minutes. What time do you surface from this dive and what is your Letter Group?

answer

1:10, I

question

Your first dive is to 18 meters (60 feet) for 30 minutes followed by a 30-minute SIT. The second dive is to 15 meters (50 feet) for 30 minutes. What is your Letter Group after the second dive?

answer

J

question

Your first dive is to 17 meters (56 feet) for 31 minutes and it is followed by a 1 hour SIT. The second dive is to 16 meters (52.5 feet). What is the AMDT for the second dive? What is your Letter Group if you reach the AMDT?

answer

19, I

question

After the second dive in problem 4, how long a SIT is required to make a 25-minute dive to 15 meters (50 feet) without exceeding the AMDT? What is your Letter Group following the third dive if your ADT is 25 minutes?

answer

1:30,J

question

As a NAUI-trained diver, you should ascend at a rate of 9 meters (30 feet) per minute when you use a dive computer regardless of the manufacturer's instructions.

answer

false

question

If you are making repetitive dives, you are limited to a depth of ______.

answer

30 meters (100 ft)

question

It is recommended that you not consume alcohol within _____ hour(s) of a planned dive.

answer

12

question

Immediately upon reaching the dive site, you should:

answer

observe conditions

question

When planning and executing a dive, it is important for diving buddies to:

answer

agree on a dive leader

question

You should have a contingency plan for:

answer

each step of your dive plan

question

On a NAUI Logbook page, the _____ box on the upper right side is used to keep track of your cumulative bottom time.

answer

total

question

Which of the following limits should be established prior to every scuba dive?

answer

max bottom time, max depth, min air pressure

question

Which of the following will help to prevent seasickness?

answer

settle yourself in a midway point of the boat

question

A diver experiencing panic should:

answer

stop, rest and breathe slowly and deeply until you recover

question

Continued loss of body heat in cold water will produce:

answer

muscle cramps, progressive immobility, and insensiblity to pain

question

To relieve a cramp in the calf:

answer

bend the toe of the fin toward the knee to strech the muscle

question

Which of the following most readily provides assistance to a diver?

answer

the diving buddy

question

Most diving problems occur _____.

answer

at the surface

question

Whenever possible, it is best to talk a distressed diver through solving their own minor difficulties.

answer

true

question

To render first aid for venomous fish wounds:

answer

flush the wound to clean, soak in hot water, and obtain medical attention

question

The first aid for sea stings, such as those from jellyfish is:

answer

the application of a stinging neutralizing agent

question

Appropriate first aid measures for air embolism and DCS includes:

answer

lie victim down, maintain circulation and respiration, administer 02

question

Four main actions you should consider in giving first aid for diving accidents are:

answer

maintain basic life support, call for help, treat for shock, deliver 100% oxygen

question

______ is a worldwide emergency network of hyperbaric chambers and diving physicians.

answer

Divers Alert Network (DAN)

question

If you receive your entry level training in the surf off California and then move to Boston, the best way of becoming familiar with the diving procedures specific to Boston and the east coast area is to:

answer

contact an active, preferably NAUI, instructor in boston and dive with him or her

question

Which of the following is an example of an overhead environment?

answer

ice

question

Which of the following is an example of a man-made site?

answer

breakwater

question

Which of the following is an example of a natural site?

answer

coral reef

question

Which of the following is the point at which a sudden change in water temperature occurs?

answer

a thermocline

question

A thermocline is a thin zone of radical change in water _____.

answer

temp

question

Which of the following affect visibility?

answer

bottom comp, season, water movement

question

_____ is the underwater movement of water caused by wave action that you will experience when diving in areas close to shore.

answer

surge

question

The predictable daily rise and fall of the ocean at a single point is called:

answer

the tide

question

Most surface waves are caused by:

answer

wind

question

It is recommended that a dive team diving from an anchored boat have:

answer

a trail line 30 meters long with a buoy at the end

question

It is recommended that a dive team diving from an anchored boat begin their dive:

answer

against the prevailing current

question

Currents which suddenly appear and disappear are:

answer

transitory

question

Almost all injuries from aquatic life are caused by _____ action on the part of the animal.

answer

defensive

question

If you are careless about your buoyancy control, you can break off pieces of coral or rub off its protective coating.

answer

true

question

A _____ plan is a written plan of your destination and your expected time of return that is left with someone on shore so they can summon help if you do not return within a reasonable time.

answer

float

question

Local dive clubs are an excellent way to:

answer

meet new divers, get info about local diving area, and introduce new diving activities

question

Which of the following are NAUI-Sanctioned Specialty Courses?

answer

underwater photo, night diver, and underwater ecologist

question

Newly certified divers who desire additional training and an orientation to a variety of diving sites and conditions should take a NAUI _____.

answer

advanced scuba diver course

question

There are many opportunities to work as a diving professional.

answer

true

NAUI eLearning – Flashcards

Unlock all answers in this set

Haven't found what you were looking for?

Search for samples, answers to your questions and flashcards