A FULLY COMPREHENSIVE TESTBANK FOR
NAUI OPEN WATER SCUBA DIVER 2025
The Tide - answer The predictable daily rise and fall of the ocean at a
single point
A block or reverse block - answer A divers inability to equalize his/her
ears during ascent could cause
A shallower - answer For optimum no decompression bottom times plan
repetitive dives so that each successive dive is to ____ depth
24 hrs - answer According to NAUI a repetitive dive is defined as more
than one dive in ____ hours
30 ft per minute - answer The following rate of ascent for diving is
acceptable when using the NAUI dive tables
absolute - answer What type of pressure is defined as gauge (water)
pressure plus atmospheric (air) pressure
Thermocline - answer the point at which a sudden change in water
temperature occurs
the area below is clear - answer the last thing to check before making a
giant or any water entry is that
the proper seal and fit - answer when selecting a face mask the most
important thing to consider is
Boyle's Law - answer which gas law best explains diving medical
problems such as ear and sinus squeeze
,35 minutes - answer a diver with a group letter of "f" making a dive to 60
ft has a residual nitrogen time of
do not use the tank and immediately call the dive shop that filled the tank
so they can investigate - answer if it is suspected that the air in a tank is
contaminated due to smell or taste...
slightly slower and deeper than you normally breathe - answer a regular
breathing pattern while diving is
date of hydrostatic test, serial number, type of material - answer
engraved markings on scuba tanks include
12 - answer a sealed balloon filled with air that has a volume of 6 cubic
inches at 99 ft will have a volume of ____ cubic inches at 33 ft
maintain basic life support, call for help, treat for shock, deliver 100%
oxygen - answer 4 main actions you should consider in giving first aid for
diving accidents are
Alcohol Intoxication - answer symptoms of nitrogen narcosis are similar
to
Sinus squeeze - answer a diver with blood and mucous in his/her mask
upon surfacing will most likely have
they may be used in a wide variety of environmental conditions - answer
open heel fins are usually the fins of choice for scuba divers because
headache - answer a symptom of carbon monoxide poisoning is often
Preserve body heat during dives - answer the primary purpose of the
exposure suit is to
,As recommended by manufacturer - answer you should have your
regulator serviced by a certified repair technician
breathe normally at all times during ascent and never hold his/her breath -
answer to prevent air embolism a diver should
60 - answer the minimum surface interval time (SIT) recommended
between two dives is ____ minutes
leave the regulator attached to the tank or have the dust cap in place -
answer when rinsing a regulator it is best to
Divers Alert Network (DAN) - answer ____ is a worldwide emergency
network of hyperbaric chambers and diving physicians
eustachian tube - answer pressure in the middle ear is equalized through
a part of the body called the
stop, rest and breathe slowly and deeply until you recover - answer a
diver experiencing panic should
emergency swimming ascent - answer the preferred action to tale if you
find yourself alone and out of air at 30 ft in open water is
greasy foods
settle yourself in a midway point of the boat
do not look at the horizon
settle yourself in the boats heat (bathroom) - answer which of the
following will help prevent sea sickness
moisture from entering - answer scuba tanks should always have some
pressure in them to prevent
, 1..0 - answer sea water weighs ____ kg per liter or ____ pounds per
cubic foot
are considered 20 ft dives - answer according to the NAUI dive tables
dives to less than 20 feet
defensive - answer almost all injuries from aquatic life are caused by ___
action on the part of the animal
steel and aluminum - answer 2 types of materials that scuba tanks are
made from are
inadequate sleep, a recent head cold, recent ingestion of drugs
(medicine/alcohol/narcotics) - answer what physical factors can make you
incapable of sustaining the efforts required by recreational diving
BAR or pounds per square inch - answer 2 methods of measuring air
pressure are
max bottom time, max depth, minimum air pressure - answer which of
the following limits should be established prior to every scuba dive
lubber - answer the ____ line is the direction of travel line on the compass
33 minutes (bc of RNT + ADT = TNT) - answer a buddy team in a NAUI
master scuba diver course makes an ocean dive to 95 ft for 20 mins. After
a surface interval of 2 hrs and 35 mins they make a repetitive dive to 70 ft
for 15 minutes. They remain on the surface for 2 hrs and 51 minutes
before diving to 45 ft. What is their adjusted maximum dive time for the
third dive?
25 - answer a divers body heat lost through conduction (primarily) at a
rate of approximately ____ times more rapidly than in air
NAUI OPEN WATER SCUBA DIVER 2025
The Tide - answer The predictable daily rise and fall of the ocean at a
single point
A block or reverse block - answer A divers inability to equalize his/her
ears during ascent could cause
A shallower - answer For optimum no decompression bottom times plan
repetitive dives so that each successive dive is to ____ depth
24 hrs - answer According to NAUI a repetitive dive is defined as more
than one dive in ____ hours
30 ft per minute - answer The following rate of ascent for diving is
acceptable when using the NAUI dive tables
absolute - answer What type of pressure is defined as gauge (water)
pressure plus atmospheric (air) pressure
Thermocline - answer the point at which a sudden change in water
temperature occurs
the area below is clear - answer the last thing to check before making a
giant or any water entry is that
the proper seal and fit - answer when selecting a face mask the most
important thing to consider is
Boyle's Law - answer which gas law best explains diving medical
problems such as ear and sinus squeeze
,35 minutes - answer a diver with a group letter of "f" making a dive to 60
ft has a residual nitrogen time of
do not use the tank and immediately call the dive shop that filled the tank
so they can investigate - answer if it is suspected that the air in a tank is
contaminated due to smell or taste...
slightly slower and deeper than you normally breathe - answer a regular
breathing pattern while diving is
date of hydrostatic test, serial number, type of material - answer
engraved markings on scuba tanks include
12 - answer a sealed balloon filled with air that has a volume of 6 cubic
inches at 99 ft will have a volume of ____ cubic inches at 33 ft
maintain basic life support, call for help, treat for shock, deliver 100%
oxygen - answer 4 main actions you should consider in giving first aid for
diving accidents are
Alcohol Intoxication - answer symptoms of nitrogen narcosis are similar
to
Sinus squeeze - answer a diver with blood and mucous in his/her mask
upon surfacing will most likely have
they may be used in a wide variety of environmental conditions - answer
open heel fins are usually the fins of choice for scuba divers because
headache - answer a symptom of carbon monoxide poisoning is often
Preserve body heat during dives - answer the primary purpose of the
exposure suit is to
,As recommended by manufacturer - answer you should have your
regulator serviced by a certified repair technician
breathe normally at all times during ascent and never hold his/her breath -
answer to prevent air embolism a diver should
60 - answer the minimum surface interval time (SIT) recommended
between two dives is ____ minutes
leave the regulator attached to the tank or have the dust cap in place -
answer when rinsing a regulator it is best to
Divers Alert Network (DAN) - answer ____ is a worldwide emergency
network of hyperbaric chambers and diving physicians
eustachian tube - answer pressure in the middle ear is equalized through
a part of the body called the
stop, rest and breathe slowly and deeply until you recover - answer a
diver experiencing panic should
emergency swimming ascent - answer the preferred action to tale if you
find yourself alone and out of air at 30 ft in open water is
greasy foods
settle yourself in a midway point of the boat
do not look at the horizon
settle yourself in the boats heat (bathroom) - answer which of the
following will help prevent sea sickness
moisture from entering - answer scuba tanks should always have some
pressure in them to prevent
, 1..0 - answer sea water weighs ____ kg per liter or ____ pounds per
cubic foot
are considered 20 ft dives - answer according to the NAUI dive tables
dives to less than 20 feet
defensive - answer almost all injuries from aquatic life are caused by ___
action on the part of the animal
steel and aluminum - answer 2 types of materials that scuba tanks are
made from are
inadequate sleep, a recent head cold, recent ingestion of drugs
(medicine/alcohol/narcotics) - answer what physical factors can make you
incapable of sustaining the efforts required by recreational diving
BAR or pounds per square inch - answer 2 methods of measuring air
pressure are
max bottom time, max depth, minimum air pressure - answer which of
the following limits should be established prior to every scuba dive
lubber - answer the ____ line is the direction of travel line on the compass
33 minutes (bc of RNT + ADT = TNT) - answer a buddy team in a NAUI
master scuba diver course makes an ocean dive to 95 ft for 20 mins. After
a surface interval of 2 hrs and 35 mins they make a repetitive dive to 70 ft
for 15 minutes. They remain on the surface for 2 hrs and 51 minutes
before diving to 45 ft. What is their adjusted maximum dive time for the
third dive?
25 - answer a divers body heat lost through conduction (primarily) at a
rate of approximately ____ times more rapidly than in air
