NAUI Open Water Scuba Diving Final
Exam
The minimium surface interval required to avoid decompression after a dive to 88 feet
for 18 min followed by a dive to 78 feet for 23 min is... - Correct Answers -4hr, 49 min
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of _____ - Correct Answers -equilibrium
Immediately upon reaching the dive site you should... - Correct Answers -observe
conditions
The absolute pressure in the ocean at 16 meters/53 feet is - Correct Answers -2.6
atmospheres absolute
A diver's body heat is lost through conduction (primarily) at a rate of approximately
_________ times more rapidly than in air. - Correct Answers -25
Appropriate first aid measures for an unconscious scuba diver should include
consideration of - Correct Answers -drowning, air embolism, and decompression
sickness
Symptoms of Nitrogen Narcosis are similar to: - Correct Answers -alcohol intoxication
The predictable daily rise and fall of the ocean at a single point is called - Correct
Answers -the tide
A diver's inability to equalize their ears during ascent could cause - Correct Answers -a
block/reverse block
________ is a worldwide emergency network of hyperbaric chambers and diving
physicians - Correct Answers -Divers Alert Network (DAN)
You should have your regulator serviced... - Correct Answers -as recommended by the
manufacturer
, If a diver's surface air consumption rate is 1.72 bar/25 psi per minute, what would be the
consumption rate at 20 meters/66 feet of seawater? - Correct Answers -5.16 bar per
minute/75 psi per minute
Which of the following will help prevent seasickness? - Correct Answers -Settle yourself
in a midway point of the boat
When conducting a buoyancy check, neutral buoyancy or proper weighting is attained
when, with a normal breath, you float at or near: - Correct Answers -eye level
The minimum SIT recommended between two dives is - Correct Answers -60 minutes
A diver with a letter group of "F" making a dive to 60 ft has a residual nitrogen time of -
Correct Answers -35 minutes
Sea water weighs _____ kg per liter or _____ pounds per cubic foot - Correct Answers -
1.025 kg per liter / 64 pounds per cubic foot
Four main actions you should consider in giving first aid for diving accidents are: -
Correct Answers -maintain basic life support, call for help, treat for shock, deliver 100%
oxygen
The last thing to check before making any water entry is that - Correct Answers -the
area below is clear
A diver with blood and mucous in his/her mask upon surfacing will most likely have: -
Correct Answers -sinus squeeze
What is the most effective way to descent while maintaining orientation and attempting
equalization of the ears? - Correct Answers -feet first
It is advisable that a sport/recreational diver... - Correct Answers -avoid decompression
dives
Snorkels over 15 inches in length are not recommended primarily because: - Correct
Answers -they have too much dead air space
The best way of becoming familiar with the diving procedures specific to a new locale is
to... - Correct Answers -contact an active, preferably NAUI, dive master or instructor to
orient you to the new locale
Pressure in the middle ear is equalized through a part of the body called the: - Correct
Answers -eustachian tube
A regular breathing pattern while diving would be - Correct Answers -slightly slower and
deeper than you normally breathe
Exam
The minimium surface interval required to avoid decompression after a dive to 88 feet
for 18 min followed by a dive to 78 feet for 23 min is... - Correct Answers -4hr, 49 min
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of _____ - Correct Answers -equilibrium
Immediately upon reaching the dive site you should... - Correct Answers -observe
conditions
The absolute pressure in the ocean at 16 meters/53 feet is - Correct Answers -2.6
atmospheres absolute
A diver's body heat is lost through conduction (primarily) at a rate of approximately
_________ times more rapidly than in air. - Correct Answers -25
Appropriate first aid measures for an unconscious scuba diver should include
consideration of - Correct Answers -drowning, air embolism, and decompression
sickness
Symptoms of Nitrogen Narcosis are similar to: - Correct Answers -alcohol intoxication
The predictable daily rise and fall of the ocean at a single point is called - Correct
Answers -the tide
A diver's inability to equalize their ears during ascent could cause - Correct Answers -a
block/reverse block
________ is a worldwide emergency network of hyperbaric chambers and diving
physicians - Correct Answers -Divers Alert Network (DAN)
You should have your regulator serviced... - Correct Answers -as recommended by the
manufacturer
, If a diver's surface air consumption rate is 1.72 bar/25 psi per minute, what would be the
consumption rate at 20 meters/66 feet of seawater? - Correct Answers -5.16 bar per
minute/75 psi per minute
Which of the following will help prevent seasickness? - Correct Answers -Settle yourself
in a midway point of the boat
When conducting a buoyancy check, neutral buoyancy or proper weighting is attained
when, with a normal breath, you float at or near: - Correct Answers -eye level
The minimum SIT recommended between two dives is - Correct Answers -60 minutes
A diver with a letter group of "F" making a dive to 60 ft has a residual nitrogen time of -
Correct Answers -35 minutes
Sea water weighs _____ kg per liter or _____ pounds per cubic foot - Correct Answers -
1.025 kg per liter / 64 pounds per cubic foot
Four main actions you should consider in giving first aid for diving accidents are: -
Correct Answers -maintain basic life support, call for help, treat for shock, deliver 100%
oxygen
The last thing to check before making any water entry is that - Correct Answers -the
area below is clear
A diver with blood and mucous in his/her mask upon surfacing will most likely have: -
Correct Answers -sinus squeeze
What is the most effective way to descent while maintaining orientation and attempting
equalization of the ears? - Correct Answers -feet first
It is advisable that a sport/recreational diver... - Correct Answers -avoid decompression
dives
Snorkels over 15 inches in length are not recommended primarily because: - Correct
Answers -they have too much dead air space
The best way of becoming familiar with the diving procedures specific to a new locale is
to... - Correct Answers -contact an active, preferably NAUI, dive master or instructor to
orient you to the new locale
Pressure in the middle ear is equalized through a part of the body called the: - Correct
Answers -eustachian tube
A regular breathing pattern while diving would be - Correct Answers -slightly slower and
deeper than you normally breathe
