NAUI eLearning Open Water Scuba
Diver Final Test-Graded A
Symptoms of Nitrogen Narcosis are similar to: - ANSWER-alcohol intoxication
the stage of the regulator which reduces working tank pressure to intermediate pressure
is: - ANSWER-the first stage
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of - ANSWER-equilibrium
Open heel fins are usually the fins of choice for scuba divers because: - ANSWER-they
may be used in a wide variety of environmental conditions
The last thing to check before making a giant stride or any water entry is that: -
ANSWER-area below is clear
Engraved markings on scuba tanks include: - ANSWER-Date of hydrostatic test, serial
number, type of material
A diver's body heat is lost through conduction (primarily) at a rate of approximately
_________ times more rapidly than in air. - ANSWER-25
when conducting a buoyancy check, neutral buoyancy or proper weighting is attained
when, with a normal breath, you float at or near - ANSWER-eye level
sound travels about_______ times faster in water than in air - ANSWER-4
a regular breathing pattern while diving would be - ANSWER-slightly slower and deeper
than you normally breathe
If a diver's surface air consumption rate is 1.72bar (25 psi) per minute, what would be
the consumption rate at 20 meters (66 feet) of seawater? - ANSWER-5.16 bar per
minute (75 psi per minute)
appropriate first aid measures for an unconscious scuba diver should include
consideration of - ANSWER-drowning, air embolism, and decompression sickness
weighting systems are used by the diver primarily to - ANSWER-offset the positive
buoyancy created by the wet suit
, Four main actions you should consider in giving first aid for diving accidents are: -
ANSWER-maintain basic life support, call for help, treat for shock, deliver 100% oxygen
Scuba tanks should always have some pressure in them to prevent: - ANSWER-
moisture from entering
The following rate of ascent for diving is acceptable when using the NAUI dive tables: -
ANSWER-30 feet per minute
Diving equipment should be - ANSWER-rinsed thoroughly, dried and stored in a cool
place
the ______ line is the direction of travel line on the compass - ANSWER-lubber
Immediately upon reaching the dive site, you should - ANSWER-observe conditions
A sealed balloon filled with air that has a volume of 6 cubic inches at 99 feet will have a
volume of _____ cubic inches at 33 feet. - ANSWER-12
A diver on the surface waving his/her hand overhead and thrashing violently indicates: -
ANSWER-distress
if you receive your entry level training in a tropical environment and then move or travel
to a northern environment, the best way to become familiar with the diving procedures
specific to a new locale is to - ANSWER-contact an active, preferably NAUI dive master
or instructor to orient you to the new locale
almost all injuries from aquatic life are caused by _____ action on the part of the animal.
- ANSWER-defensive
A diver's inability to equalize his/her ears during ascent could cause: - ANSWER-a block
or reverse block
which of the following is the point at which a sudden change in water temperature
occurs? - ANSWER-a thermocline
continued loss of body heat in cold water will produce - ANSWER-all of the
above/following; muscle cramps, progressive immobility, and insensibility to pain
an irregular breathing pattern while diving will possibly cause - ANSWER-carbon dioxide
excess
which gas law best explains diving medical problems such as ear and sinus squeeze -
ANSWER-boyle's law
Diver Final Test-Graded A
Symptoms of Nitrogen Narcosis are similar to: - ANSWER-alcohol intoxication
the stage of the regulator which reduces working tank pressure to intermediate pressure
is: - ANSWER-the first stage
when the pressure of nitrogen is balanced between the air and your body, you are at a
state of - ANSWER-equilibrium
Open heel fins are usually the fins of choice for scuba divers because: - ANSWER-they
may be used in a wide variety of environmental conditions
The last thing to check before making a giant stride or any water entry is that: -
ANSWER-area below is clear
Engraved markings on scuba tanks include: - ANSWER-Date of hydrostatic test, serial
number, type of material
A diver's body heat is lost through conduction (primarily) at a rate of approximately
_________ times more rapidly than in air. - ANSWER-25
when conducting a buoyancy check, neutral buoyancy or proper weighting is attained
when, with a normal breath, you float at or near - ANSWER-eye level
sound travels about_______ times faster in water than in air - ANSWER-4
a regular breathing pattern while diving would be - ANSWER-slightly slower and deeper
than you normally breathe
If a diver's surface air consumption rate is 1.72bar (25 psi) per minute, what would be
the consumption rate at 20 meters (66 feet) of seawater? - ANSWER-5.16 bar per
minute (75 psi per minute)
appropriate first aid measures for an unconscious scuba diver should include
consideration of - ANSWER-drowning, air embolism, and decompression sickness
weighting systems are used by the diver primarily to - ANSWER-offset the positive
buoyancy created by the wet suit
, Four main actions you should consider in giving first aid for diving accidents are: -
ANSWER-maintain basic life support, call for help, treat for shock, deliver 100% oxygen
Scuba tanks should always have some pressure in them to prevent: - ANSWER-
moisture from entering
The following rate of ascent for diving is acceptable when using the NAUI dive tables: -
ANSWER-30 feet per minute
Diving equipment should be - ANSWER-rinsed thoroughly, dried and stored in a cool
place
the ______ line is the direction of travel line on the compass - ANSWER-lubber
Immediately upon reaching the dive site, you should - ANSWER-observe conditions
A sealed balloon filled with air that has a volume of 6 cubic inches at 99 feet will have a
volume of _____ cubic inches at 33 feet. - ANSWER-12
A diver on the surface waving his/her hand overhead and thrashing violently indicates: -
ANSWER-distress
if you receive your entry level training in a tropical environment and then move or travel
to a northern environment, the best way to become familiar with the diving procedures
specific to a new locale is to - ANSWER-contact an active, preferably NAUI dive master
or instructor to orient you to the new locale
almost all injuries from aquatic life are caused by _____ action on the part of the animal.
- ANSWER-defensive
A diver's inability to equalize his/her ears during ascent could cause: - ANSWER-a block
or reverse block
which of the following is the point at which a sudden change in water temperature
occurs? - ANSWER-a thermocline
continued loss of body heat in cold water will produce - ANSWER-all of the
above/following; muscle cramps, progressive immobility, and insensibility to pain
an irregular breathing pattern while diving will possibly cause - ANSWER-carbon dioxide
excess
which gas law best explains diving medical problems such as ear and sinus squeeze -
ANSWER-boyle's law
