question

when selecting a face mask, the most important things to consider are proper _____ & _____

answer

fit and seal

question

snorkels over 15 inches in length are not recommended primarily because they have too much _______________

answer

dead air space

question

when buying or renting equipment for diving, the most important consideration is the _____ on your body

answer

fit

question

diving equipment should be _____ thoroughly , _____ and _____ in a cool place.

answer

rinsed, dried, and stored

question

open heel fins are usually the fins of choice for scuba divers because

answer

you can wear boots

question

weighing systems are used by the diver primarily to offset the __________ created by the wetsuit

answer

positive buoyancy

question

sea water weighs _____ pounds per cubic foot

answer

64.1

question

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

answer

tool

question

the dive knife is primarily used as a tool for _____, _____, _____,& _____

answer

digging, cutting, pounding, and prying

question

snorkels over _____ in length are not recommended

answer

15 inches

question

diving equipment should be stored _______________

answer

in a cool place

question

because of refraction, objects underwater appear _____ & _____ when the diver is looking through his or her mask.

answer

larger and closer

question

because of _____, objects underwater look larger and closer when the diver is looking through his or her mask

answer

refraction

question

sounds travels about _____ times faster in water than in air

answer

4

question

sounds travels about 4 times _____ in water than in air

answer

faster

question

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

answer

red

question

the _____ color lost in the spectrum upon descent during a dive is red

answer

first

question

when rinsing a regulator, it is best to leave it _______________, or leave the dust cap on.

answer

attached to the tank

question

when rinsing a regulator, it is best to leave it attached to the tank or have the _______________.

answer

dust cap closed

question

scuba tanks should always have some pressure in them to prevent _______________

answer

water from entering

question

scuba tanks should always have some _____ in them to prevent water from entering

answer

pressure

question

according to the department of transportation regulations, scuba tanks must be hydrostatically tested every __________

answer

five years

question

scuba tanks should be __________ every 5 years

answer

hydrostatically tested

question

the primary purpose of the exposure suits is to preserve _____ during dives

answer

heat

question

the _____ purpose of the exposure suits is to preserve heat during dives

answer

primary

question

the primary purpose of _____ suits is to preserve heat during dives

answer

exposure

question

you should have your regulator serviced by a certified repair technician at least _____ per year

answer

once

question

you should have your _____ serviced by a certified repair technician at least once per year

answer

regulator

question

the stage of the regulator which reduces tank pressure is the _____ stage

answer

first

question

the first stage of the regulator reduces __________

answer

tank pressure

question

two types of materials that scuba tanks are made from are _____ & _____

answer

aluminum and steel

question

stamped markings on scuba tanks include _______________, serial number, and type of tank.

answer

date of test

question

stamped marking on scuba tanks include date of test, __________, and type of tank

answer

serial number

question

stamped markings on scuba tanks include date of test, serial number, and _______________

answer

type of tank

question

atmospheric pressure at sea level is _____ pounds per square inch, or 1 atmosphere absolute

answer

14.7

question

atmospheric pressure at sea level is 14.7 pounds per inch or _______________

answer

1 atmosphere absolute

question

a sealed balloon filled with air that has 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

64.1

question

__________ weighs 64.1 pounds per cubic foot

answer

sea water

question

the gas law best explains diving medical problems such as ear and sinus squeeze is __________

answer

boyle's law

question

a diver's body heat is lost through conduction (primarily) as a rate of approximately _____ times more rapidly than air

answer

25

question

a diver's body heat is lost primarily through _____

answer

conduction

question

the type of pressure is defined as gauge (water) pressure plus atmospheric (air) pressure is _____ pressure

answer

absolute

question

the absolute pressure in the ocean at 53 feet is _____ atmospheres absolute

answer

2.61

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

two methods of measuring air pressure are _____ or punds per square inch.

answer

BAR

question

pressure in the middle ear is equalized through a part of the body called the _____ tubes

answer

eustachian

question

a diver's inability to equalize his/her ears during ascent could cause a _____ or a __________

answer

block, reverse block

question

pressure in the _____ ear is equalized through a part of the body called the eustachian tubes

answer

middle

question

an irregular breathing pattern (skip breathing) while diving will possibly cause __________ excess

answer

carbon dioxide

question

generally, for maximum efficiency, your breathing should be slightly _____ & _____ than you normally breathe

answer

slower and deeper

question

to prevent air embolism, a diver should breathe _____ at all times during ascent, and never hold his or her breath

answer

normally

question

to prevent air embolism, a diver should breathe normally at all times during ascent and never _______________

answer

hold their breath

question

a symptom of carbon monoxide poisoning is often a _____

answer

headache

question

appropriate first aide measures for an unconscious scuba diver should include consideration of drowning, _____, and decompression sickness.

answer

air embolism

question

appropriate first aide measures for an unconscious scuba diver should include consideration of _____, air embolism, and decompression sickness.

answer

drowning

question

appropriate first aide measures for an unconscious scuba diver should include consideration of drowning, air embolism, and __________.

answer

decompression sickness

question

air embolism, mediastinal and subcutaneous emphysema, and pneumothorax are pressure related injuries which are caused by _____ on compressed air

answer

breathing

question

air embolism, mediastinal and subcutaneous emphysema, and pneumothorax are pressure related injuries which are caused by breathing on __________.

answer

compressed air

question

the most serious of the pressure related injuries is a(an) __________

answer

air embolism

question

an air embolism is best described as an __________ lodged in an artery

answer

air bubble

question

a _____ is best described as an air bubble lodged in an artery

answer

air embolism

question

a mediastinal emphysema is best described as air trapped around _____

answer

the heart

question

a __________ is best described as air trapped around the heart

answer

mediastinal emphysema

question

a subcutaneous emphysema is best described as air trapped under the _____ usually around the neck

answer

skin

question

a __________ is best described as air trapped under the skin, usually around the neck

answer

subcutaneous emphysema

question

a subcutaneous emphysema is best described as air trapped under the skin, usually around the _____

answer

neck

question

a pneumothorax is best described as a collapse of _____ tissue

answer

lung

question

a _____ is best described as a collapse of lung tissue

answer

pneumothorax

question

air embolism, pneumothorax, and both emphysemas can be caused by __________ while on compressed air.

answer

holding your breath

question

air embolism, pneumothorax, and both emphysemas can be caused by holding your breath while on __________

answer

compressed air

question

primary treatment for an air embolism is to lay victim down, treat for _____, give oxygen, and get to a recompression chamber

answer

shock

question

primary treatment for an air embolism is to lay victim down, treat for shock, give _____, and get to a recompression chamber

answer

oxygen

question

primary treatment for an air embolism is to lay victim down, treat for shock, give oxygen, and get to a __________.

answer

recompression chamber

question

primary treatment for a mediastinal emphysema is to lay the victim down, treat for schock, give oxygen, and if in doubt, treat for _____.

answer

an air embolism

question

primary treatment for subcutaneous emphysema is watch, treat for shock, chamber _____, unless other indications require it

answer

not required

question

primary treatment for pneumothorax is to lay the victim down, treat for shock, and _____ the trapped air

answer

release

question

basic symptoms of an air embolism are vision _____, breathing/circulatory problems,and bloody froth in the mouth

answer

blurring

question

basic symptoms of an air embolism are vision blurring, breathing/circulatory problems,and __________ in the mouth

answer

bloody froth

question

basic symptoms of mediastinal emphysema are pain in the center of the ____ and difficulty breathing.

answer

chest

question

basic symptoms of mediastinal emphysema are pain in the center of the chest, and __________

answer

difficulty breathing

question

basic symptoms of subcutaneous emphysema are change in _____, and crackling of the skin when touched.

answer

voice

question

basic symptoms of subcutaneous emphysema are change in voice, and crackling of _____ when touched.

answer

skin

question

basic symptoms of pneumothorax are pain on the _____ of the chest, cyanosis of lips, nails, and skin.

answer

side

question

if your dive buddy complains to you about having aching pain in his or her shoulder one hour after the dive, you might suspect _____ sickness.

answer

decompression

question

the point at which a sudden change in eater temperature occurs is a _____

answer

thermocline

question

currents which suddenly appear and disappear are _____

answer

rip currents

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

tide

question

most surface waves are caused by the ____

answer

winds

question

examples of natural navigation aids divers use during diving include _____ in the sand, sun position, amount of light, and bottom landmarks.

answer

ripples

question

examples of natural navigation aids divers may use during dives include ripples in the sand, _____, amount of light, and bottom landmarks

answer

sun position

question

examples of natural navigation aids divers may use while diving include ripples in the sand, sun position, amount of light, and _____.

answer

bottom landmarks

question

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

answer

defensive

question

the first aid for sea stings, such as those from jellyfish is the application of a sting __________

answer

neutralizing agent

question

to render first aid for venomous fish wounds, wash the wounds clean, _____ in hot water, and obtain medical attention

answer

soak

question

breathing dry air, scuba divers tend to become _____ while diving due to humidifying dry inhaled air.

answer

dehydrated

question

breathing dry air, scuba divers tend to become dehydrated while diving due to _____ dry inhaled air

answer

humidifying

question

symptoms of nitrogen narcosis are similar to __________

answer

alcohol intoxication

question

to prevent seasickness you should settle yourself in the _____ point of the boat

answer

center

question

four main actions you should consider in giving first aid for diving accidents are maintain basic _____, call for help, treat for shock, and deliver 100% oxygen.

answer

life support

question

four main actions you should consider in giving first aid for diving accidents are maintain basic life support, _____, treat for shock, and deliver 100% oxygen.

answer

call for help

question

four main actions you should consider in giving first aid for diving accidents are maintain basic life support, call for help, ____, and deliver 100% oxygen.

answer

treat for shock

question

four main actions you should consider in giving first aid for diving accidents are maintain basic life support, call for help, treat for shock, and deliver _____.

answer

100% oxygen

question

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

answer

emergency swim ascent

question

if you are wearing an exposure suit, you should add air to your _____ to safely control buoyancy as you descend.

answer

bc vest

question

Physical factors that can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving are __________, recent head injury, and recent ingestion of alcohol.

answer

inadequate rest

question

Physical factors that can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving are inadequate rest, _________, and recent ingestion of alcohol.

answer

recent head injury

question

Physical factors that can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving are inadequate rest, recent head injury, and _______________.

answer

recent ingestion of alcohol

question

the __________ can most readily provide assistance to a diver.

answer

diver's buddy

question

a diver experiencing panic should _____, rest, and breathe slowly and deeply until they recover.

answer

stop

question

a diver experiencing panic should stop, rest, and breathe _____ & _____ until they recover.

answer

slowly and deeply

question

the most effective way to descend while maintaining orientation and attempting equalization of the ears is _____ first.

answer

feet

question

continued loss of body heat in cold water will produce muscle _____, progressive weakness, and insensibility to pain.

answer

cramps

question

continued loss of body heat in cold water will produce muscle cramps, progressive _____, and insensibility to pain.

answer

weakness

question

continued loss of body heat in cold water will produce muscle cramps, progressive weakness, and insensibility to _____.

answer

pain

question

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

answer

fatigue

question

to relieve cramps in the calf, bend the toe of the fin towards the _____, to stretch the muscle.

answer

knee

question

to relieve cramps in the calf, bend the toe of the fin towards the knee to stretch the _____

answer

muscle

question

a diver on the surface waving his or her hand overhead and thrashing violently indicates _____

answer

distress

question

when the pressure of nitrogen is balanced between the air and your body, you are at a state of _____

answer

equilibrium

question

if a divers surface air consumption rate is 25 psi per miniute, what would be the consumption rate at 66 feet of seawater?

answer

8.3 psi per minute

question

the ascent rate of _____ for diving is acceptable when using the NAUI dive tables

answer

30 feet per minute

question

a diver with a group letter of 'F' making a dive of 60 ft. has a residual nitrogen time of _____

answer

36 minutes

question

it is advisable that a sport diver _____ decompression dives

answer

avoids

question

for optimum no-decompression bottom times, plan repetitive dives so that each successive dive is to a _____ depth

answer

shallower

question

the maximum five time for a dive to 60 feet is _____ minutes

answer

55

question

the minimum surface interval required to avoid stage decompression after a dive to 88 ft for 18 minutes, followed by a dive to 78 ft for 23 minutes is __________

answer

3 hours and 25 minutes

question

according to naui, a repetitive dive is defined as more than one dive within a period of _____

answer

24 hours

question

the minimum surface interval recommended between two dives is _____

answer

10 minutes

question

your first dive is to 60 ft for 50 minutes. you spend one hour and 40 minutes on the surface, what is your adjusted maximum dive time at 60 ft?

answer

19 min

question

according to the naui dive tables to less than 40 feet are considered as _____ dives

answer

40 feet

question

the _____ line is the direction of travel line on the compass

answer

lubber

question

the _____ is a worldwide emergency network of hyperbaric chambers and diving physicians

answer

DAN

question

it is recommended that a dive team diving from an anchored boat have trail line _____ long with a buoy at the end

answer

100 ft

question

it is recommended that a dive team diving from an anchored boat begin their dive _____ the prevailing current

answer

with

question

when planning and executing a dive, it is important for diving buddies to agree on a dive. true or false?

answer

true

question

the last thing to check before making a giant stride or any water entry is that area below is _____

answer

clear

Beginner SCUBA certification test – Flashcards

Unlock all answers in this set

Haven't found what you were looking for?

Search for samples, answers to your questions and flashcards