Symptoms of Nitrogen Narcosis are similar to: - Answer -Alcohol intoxication
To relieve a cramp in the calf: - Answer -Bend the toe of the fin toward the knee to
stretch the muscle
Which of the following will help to prevent seasickness? - Answer -Settle yourself in a
midway point of the boat
Two types of materials that scuba tanks are made from are steel and _________. -
Answer -aluminum
Almost all injuries from aquatic life are caused by _____ action on the part of the
animal. - Answer -defensive
If you receive your entry level training in a tropical environment and then move or travel
to a northern environment, the best way of becoming 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
A diver with blood and mucous in his/her mask upon surfacing will most likely have: -
Answer -Sinus squeeze
If it is suspected that the air in a tank is contaminated due to its smell or taste: - Answer
-Do not use the tank and immediately call the dive shop that filled the tank so they can
investigate the problem
Sound travels about _________ times faster in water than in air. - Answer -4
What type of pressure is defined as gauge (water) pressure plus atmospheric (air)
pressure? - Answer -Absolute
The following rate of ascent for diving is acceptable when using the NAUI dive tables: -
Answer -9 meters/ 30 feet per minute
, A diver experiencing panic should: - Answer -Stop, rest and breathe slowly and deeply
until you recover
Completing this entry level scuba certification course makes you knowledgeable and
skillful enough to dive safely in or at: - Answer -Open water with conditions similar to
those in which you were trained
The maximum dive time for a dive to 60 ft is _________ minutes. - Answer -50
The stage of the regulator which reduces working tank pressure to intermediate
pressure is: - Answer -The first stage
Engraved markings on scuba tanks include: - Answer -Date of hydrostatic test, serial
number, type of material
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)
An irregular breathing pattern (skip breathing) while diving will possibly cause: - Answer
-Carbon dioxide excess
A diver's body heat is lost through conduction (primarily) at a rate of approximately
_________ times more rapidly than in air. - Answer -25
Your first dive is to 60 ft for 50 minutes. You spend one hour and 40 minutes on the
surface, what is your adjusted maximum dive time at 60 ft? - Answer -4 minutes
Examples of natural navigation aids divers may use during dives include: - Answer -
Ripple marks in the sand, Sun brightness/available light, Bottom contours
When buying or renting equipment for diving, the most important consideration is: -
Answer -Its fit on your body
Pressure in the middle ear is equalized through a part of the body called the: - Answer -
Eustachian tube
The first color lost in the spectrum upon descent during a dive is _____. - Answer -red
Which is the most effective way to descend while maintaining orientation and attempting
equalization of the ears? - Answer -Feet first
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