Exam (elaborations)
NAUI eLEARNING OPEN WATER SCUBA DIVER FINAL TEST
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NAUI eLEARNING OPEN WATER SCUBA DIVER FINAL TEST
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NAUI eLEARNING OPEN WATER SCUBA DIVER FINAL TESTSymptoms 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
which of the following most readily provides assistance to a diver - answer- the diving buddy
examples of natural navigation aids divers may use during dives include - answer- all of the above/following; ripple marks in the sand, sun brightness, and bottom contours
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
Which of the following physical factors can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving - answer- all of the above/following; inadequate sleep, a recent head cold and recent ingestion of drugs (medicine, alcohol, narcotics)
Physical fitness is an important consideration for scuba divers because it helps to prevent diving accidents due to - answer- exhaustion
which is the most effective way to descend while maintaining orientation and attempting equalization of the ears - answer- feet first
you should have your regulator serviced by a certified repair technician - answer- as recommended by the manufacturer
A symptom of carbon monoxide poisoning is often: - answer- headache
Two methods of measuring air pressure are BAR or: - answer- pounds per square inch
According to NAUI, a repetitive dive is defined as more than one dive within a period of _________ hours. - answer- 24
the absolute pressure in the ocean at 16 meters (35 feet) is - answer- 2.6 atmospheres absolute
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