NAUI SCUBA Exam Questions with
Complete Solutions
At a minimum, while diving, most dive computers display: - ANSWER-Maximum depth,
current depth, actual bottom time, remaining allowable bottom time.
Which of the following is an essential feature to consider when selecting a diving mask?
- ANSWER-Tempered or safety glass
Snorkels over 15 inches (38 centimeters) in length are not recommended primarily
because: - ANSWER-They have too much dead air space.
When buying or renting equipment for diving, the most important consideration is: -
ANSWER-Its fit on your body.
When rinsing a regulator it is best to: - ANSWER-Leave the regulator attached to the
tank or have the dust cap in place.
Three features that are common to all buoyancy control devices are: - ANSWER-An
overpressure relief valve, inflation/deflation hose, low pressure inflator hose.
Three types of alternate air sources that are in common use today are: - ANSWER-
Octopus rigs, completely redundant systems, an integrated regulator into the BCD
inflation/deflation hose.
According to the United States Department of Transportation regulations, scuba tanks
must be hydrostatically tested every: - ANSWER-5 years
The most important functional feature of a weight belt or weight system is: - ANSWER-A
means for ditching the weights immediately with one hand.
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 mucous in his/her mask upon surfacing will most likely have: -
ANSWER-Sinus squeeze
If your dive buddy complains to you about having aching pain in his/her shoulder one
hour after the dive, you might suspect: - ANSWER-Decompression sickness.
, A symptom of hypothermia which indicates that a diver should terminate his/her dive is:
- ANSWER-Shivering
Which of the following activities is most appropriate for re-establishing or maintaining an
adequate fitness level for safe diving? - ANSWER-Workouts in a pool with mask, fins,
and snorkel 3 times per week.
Which of the following is the point at which a sudden change in water temperature
occurs? - ANSWER-A thermocline.
Three general categories of currents are: - ANSWER-Standing, Tidal, Transitory.
A dive team caught in a rip current taking them in a direction they do not want to go,
should: - ANSWER-Swim at a right angle to the current.
Two ways that tidal action affect diving conditions include: - ANSWER-Entry and exit
conditions may change and tidal currents may become quite strong.
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.
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 stings such as those from jellyfish: - ANSWER-Removal of
stinging material and application of a neutralizing agent.
Which buddy system technique is recommended when diving in limited visibility? -
ANSWER-Holding hands or use a buddy line.
A diver with a group letter of "D" making a dive to 60 feet of seawater (18.24 m) has a
residual nitrogen time of: - ANSWER-24 minutes
It is advisable that a sport/recreational diver: - ANSWER-Avoid decompression dives.
For optimum no-decompression bottom times, plan repetitive dives so that each
successive dive is to _________ depth. - ANSWER-a shallower
The maximum dive time for a dive to 65 feet of seawater (19.76 m) is _________
minutes. - ANSWER-45
Complete Solutions
At a minimum, while diving, most dive computers display: - ANSWER-Maximum depth,
current depth, actual bottom time, remaining allowable bottom time.
Which of the following is an essential feature to consider when selecting a diving mask?
- ANSWER-Tempered or safety glass
Snorkels over 15 inches (38 centimeters) in length are not recommended primarily
because: - ANSWER-They have too much dead air space.
When buying or renting equipment for diving, the most important consideration is: -
ANSWER-Its fit on your body.
When rinsing a regulator it is best to: - ANSWER-Leave the regulator attached to the
tank or have the dust cap in place.
Three features that are common to all buoyancy control devices are: - ANSWER-An
overpressure relief valve, inflation/deflation hose, low pressure inflator hose.
Three types of alternate air sources that are in common use today are: - ANSWER-
Octopus rigs, completely redundant systems, an integrated regulator into the BCD
inflation/deflation hose.
According to the United States Department of Transportation regulations, scuba tanks
must be hydrostatically tested every: - ANSWER-5 years
The most important functional feature of a weight belt or weight system is: - ANSWER-A
means for ditching the weights immediately with one hand.
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 mucous in his/her mask upon surfacing will most likely have: -
ANSWER-Sinus squeeze
If your dive buddy complains to you about having aching pain in his/her shoulder one
hour after the dive, you might suspect: - ANSWER-Decompression sickness.
, A symptom of hypothermia which indicates that a diver should terminate his/her dive is:
- ANSWER-Shivering
Which of the following activities is most appropriate for re-establishing or maintaining an
adequate fitness level for safe diving? - ANSWER-Workouts in a pool with mask, fins,
and snorkel 3 times per week.
Which of the following is the point at which a sudden change in water temperature
occurs? - ANSWER-A thermocline.
Three general categories of currents are: - ANSWER-Standing, Tidal, Transitory.
A dive team caught in a rip current taking them in a direction they do not want to go,
should: - ANSWER-Swim at a right angle to the current.
Two ways that tidal action affect diving conditions include: - ANSWER-Entry and exit
conditions may change and tidal currents may become quite strong.
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.
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 stings such as those from jellyfish: - ANSWER-Removal of
stinging material and application of a neutralizing agent.
Which buddy system technique is recommended when diving in limited visibility? -
ANSWER-Holding hands or use a buddy line.
A diver with a group letter of "D" making a dive to 60 feet of seawater (18.24 m) has a
residual nitrogen time of: - ANSWER-24 minutes
It is advisable that a sport/recreational diver: - ANSWER-Avoid decompression dives.
For optimum no-decompression bottom times, plan repetitive dives so that each
successive dive is to _________ depth. - ANSWER-a shallower
The maximum dive time for a dive to 65 feet of seawater (19.76 m) is _________
minutes. - ANSWER-45
