NAUI Scuba Exam Questions and
Answers
When selecting a face mask, the most important thing to consider is: - ANSWER-Proper
seal and fit.
Snorkels over 15 inches in length are not reccomended primarily because: - ANSWER-
They have too much dead air space.
When buying or renting scuba equipment for diving, Space the most pertinent
consideration is - ANSWER-it's fit on your body
When rinsing a regulator it is best to - ANSWER-leave the regulator attached to the tank
four have the dust cat in place
Diving equipment should be - ANSWER-rinse thoroughly, dried and stored in a cool
place.
Scuba tank should always have some pressure and then to prevent - ANSWER-
moisture from entering.
If a diverse surface air consumption rate is 2.5 PSI per minute, what would be the
consumption rate at 66 feet of seawater - ANSWER-75 PSI per minute
A depth that is equivalent to one atmosphere in the ocean is equal to ___________ feet
in seawater and __________ feet and fresh water - ANSWER-33; 34
Two methods of measuring air pressure are BAR or - ANSWER-pounds per square inch
Sound travels about _____ times faster in water than in air - ANSWER-4
The first color lost in the spectrum upon descent during dives is - ANSWER-red
Pressure and the middle ear is equalized through a part of the body called the -
ANSWER-Eustachian tube
Breathing dry air, a scuba diver tends to become dehydrated while diving due to -
ANSWER-moisturizing dry inhaled air
Symptoms of nitrogen narcosis are similar to - ANSWER-alcoholic intoxication
, A divers inability to equalize his or her ears during an ascent could cause - ANSWER-a
block or reverse block
An irregular breathing pattern (skip breathing) while diving will possibly cause -
ANSWER-Carbon dioxide excess
Generally, for maximum efficiency, your breathing should be - ANSWER-slightly slower
and deeper than you normally breathe
To prevent air embolism, a diver should - ANSWER-breathe normally at all times during
ascent and never hold his/her breath
A diver with blood and mucus in his/her mask upon surfacing will most likely have -
ANSWER-Sinus squeeze
If your dive buddy complains to you about having an aching pain in his/her shoulder one
hour after the dive, you might suspect - ANSWER-decompression sickness
A symptom of carbon monoxide poisoning is often - ANSWER-headache
The following rate of ascent for diving is acceptable when using the USN/NAUI dive
tables - ANSWER-30 feet per minute
Which of the following is the point at which a sudden change in water temperature
occurs - ANSWER-thermocline
Currents which suddenly appear and disappear are - ANSWER-transitory
_______ Is the underwater movement of water caused by wave action that you will
experience when diving in areas close to shore - ANSWER-Surge.
The predictable daily rise and fall of the ocean at a single point is called - ANSWER-The
tide.
Most surface waves are caused by - ANSWER-wind
Examples of natural navigation aids divers may use during dives include - ANSWER-
ripple marks in the sand, sun brightness/available light, and bottom contours.
Almost all injuries from aquatic life are caused by _______ action on the part of the
animal - ANSWER-defensive
To render first aid for venomous fish wounds - ANSWER-flush the wound to clean, soak
in hot water, obtain medical attention
Answers
When selecting a face mask, the most important thing to consider is: - ANSWER-Proper
seal and fit.
Snorkels over 15 inches in length are not reccomended primarily because: - ANSWER-
They have too much dead air space.
When buying or renting scuba equipment for diving, Space the most pertinent
consideration is - ANSWER-it's fit on your body
When rinsing a regulator it is best to - ANSWER-leave the regulator attached to the tank
four have the dust cat in place
Diving equipment should be - ANSWER-rinse thoroughly, dried and stored in a cool
place.
Scuba tank should always have some pressure and then to prevent - ANSWER-
moisture from entering.
If a diverse surface air consumption rate is 2.5 PSI per minute, what would be the
consumption rate at 66 feet of seawater - ANSWER-75 PSI per minute
A depth that is equivalent to one atmosphere in the ocean is equal to ___________ feet
in seawater and __________ feet and fresh water - ANSWER-33; 34
Two methods of measuring air pressure are BAR or - ANSWER-pounds per square inch
Sound travels about _____ times faster in water than in air - ANSWER-4
The first color lost in the spectrum upon descent during dives is - ANSWER-red
Pressure and the middle ear is equalized through a part of the body called the -
ANSWER-Eustachian tube
Breathing dry air, a scuba diver tends to become dehydrated while diving due to -
ANSWER-moisturizing dry inhaled air
Symptoms of nitrogen narcosis are similar to - ANSWER-alcoholic intoxication
, A divers inability to equalize his or her ears during an ascent could cause - ANSWER-a
block or reverse block
An irregular breathing pattern (skip breathing) while diving will possibly cause -
ANSWER-Carbon dioxide excess
Generally, for maximum efficiency, your breathing should be - ANSWER-slightly slower
and deeper than you normally breathe
To prevent air embolism, a diver should - ANSWER-breathe normally at all times during
ascent and never hold his/her breath
A diver with blood and mucus in his/her mask upon surfacing will most likely have -
ANSWER-Sinus squeeze
If your dive buddy complains to you about having an aching pain in his/her shoulder one
hour after the dive, you might suspect - ANSWER-decompression sickness
A symptom of carbon monoxide poisoning is often - ANSWER-headache
The following rate of ascent for diving is acceptable when using the USN/NAUI dive
tables - ANSWER-30 feet per minute
Which of the following is the point at which a sudden change in water temperature
occurs - ANSWER-thermocline
Currents which suddenly appear and disappear are - ANSWER-transitory
_______ Is the underwater movement of water caused by wave action that you will
experience when diving in areas close to shore - ANSWER-Surge.
The predictable daily rise and fall of the ocean at a single point is called - ANSWER-The
tide.
Most surface waves are caused by - ANSWER-wind
Examples of natural navigation aids divers may use during dives include - ANSWER-
ripple marks in the sand, sun brightness/available light, and bottom contours.
Almost all injuries from aquatic life are caused by _______ action on the part of the
animal - ANSWER-defensive
To render first aid for venomous fish wounds - ANSWER-flush the wound to clean, soak
in hot water, obtain medical attention
