NAUI Open Water Scuba Diving Final
Exam with Complete Solutions
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... - ANS-4hr, 49 min
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of _____ - ANS-equilibrium
Immediately upon reaching the dive site you should... - ANS-observe conditions
The absolute pressure in the ocean at 16 meters/53 feet is - ANS-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. - ANS-25
Appropriate first aid measures for an unconscious scuba diver should include
consideration of - ANS-drowning, air embolism, and decompression sickness
Symptoms of Nitrogen Narcosis are similar to: - ANS-alcohol intoxication
The predictable daily rise and fall of the ocean at a single point is called - ANS-the tide
A diver's inability to equalize their ears during ascent could cause - ANS-a block/reverse
block
________ is a worldwide emergency network of hyperbaric chambers and diving
physicians - ANS-Divers Alert Network (DAN)
You should have your regulator serviced... - ANS-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? - ANS-5.16 bar per minute/75 psi
per minute
Which of the following will help prevent seasickness? - ANS-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: - ANS-eye level
, The two types of materials that scuba tanks are made from are - ANS-steel and
aluminum
If during a dive you and your buddy become separated, you should: - ANS-spend no
more than one minute looking then surface
Physical fitness is an important consideration for scuba divers because it helps prevent
diving accidents due to - ANS-exhaustion
Sound travels about _______ times faster in water than in air - ANS-4
Examples of natural navigation aids divers may use during dives include... - ANS-ripple
marks in the sand, sun brightness/available light, and bottom contours (all of the above)
Engraved markings on scuba tanks include: - ANS-Date of hydrostatic test, serial
number, type of material
What is the point at which a sudden change in water temperature occurs? - ANS-A
thermocline
Completing this entry level scuba certification course makes you knowledgeable and
skillful enough to dive safely in or at: - ANS-open water with conditions similar to those
in which you were trained
For optimum no-decompression bottom times, plan repetitive dives so that each
successive dive is to _________ depth. - ANS-a shallower
To relieve a cramp in the calf - ANS-Bend the toe of the fin toward the knee to stretch
the muscle
The first color lost in the spectrum upon descent during a dive is _____. - ANS-red
Breathing dry air, a scuba diver tends to become dehydrated while diving due to: - ANS-
moisturizing dry inhaled air
The preferred action to take if you find yourself alone and out of air at 30 feet in open
water is: - ANS-emergency swimming ascent
It is recommended that a dive team diving from an anchored boat begin their dive -
ANS-against the revailing current
Which of the following most readily provides assistance to a diver - ANS-the diving
buddy
Exam with Complete Solutions
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... - ANS-4hr, 49 min
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of _____ - ANS-equilibrium
Immediately upon reaching the dive site you should... - ANS-observe conditions
The absolute pressure in the ocean at 16 meters/53 feet is - ANS-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. - ANS-25
Appropriate first aid measures for an unconscious scuba diver should include
consideration of - ANS-drowning, air embolism, and decompression sickness
Symptoms of Nitrogen Narcosis are similar to: - ANS-alcohol intoxication
The predictable daily rise and fall of the ocean at a single point is called - ANS-the tide
A diver's inability to equalize their ears during ascent could cause - ANS-a block/reverse
block
________ is a worldwide emergency network of hyperbaric chambers and diving
physicians - ANS-Divers Alert Network (DAN)
You should have your regulator serviced... - ANS-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? - ANS-5.16 bar per minute/75 psi
per minute
Which of the following will help prevent seasickness? - ANS-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: - ANS-eye level
, The two types of materials that scuba tanks are made from are - ANS-steel and
aluminum
If during a dive you and your buddy become separated, you should: - ANS-spend no
more than one minute looking then surface
Physical fitness is an important consideration for scuba divers because it helps prevent
diving accidents due to - ANS-exhaustion
Sound travels about _______ times faster in water than in air - ANS-4
Examples of natural navigation aids divers may use during dives include... - ANS-ripple
marks in the sand, sun brightness/available light, and bottom contours (all of the above)
Engraved markings on scuba tanks include: - ANS-Date of hydrostatic test, serial
number, type of material
What is the point at which a sudden change in water temperature occurs? - ANS-A
thermocline
Completing this entry level scuba certification course makes you knowledgeable and
skillful enough to dive safely in or at: - ANS-open water with conditions similar to those
in which you were trained
For optimum no-decompression bottom times, plan repetitive dives so that each
successive dive is to _________ depth. - ANS-a shallower
To relieve a cramp in the calf - ANS-Bend the toe of the fin toward the knee to stretch
the muscle
The first color lost in the spectrum upon descent during a dive is _____. - ANS-red
Breathing dry air, a scuba diver tends to become dehydrated while diving due to: - ANS-
moisturizing dry inhaled air
The preferred action to take if you find yourself alone and out of air at 30 feet in open
water is: - ANS-emergency swimming ascent
It is recommended that a dive team diving from an anchored boat begin their dive -
ANS-against the revailing current
Which of the following most readily provides assistance to a diver - ANS-the diving
buddy
