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NAUI eLearning Final exam with verified solutions.
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NAUI eLearning Final exam with verified solutions.
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NAUI eLearning Final exam withverified solutions
Which of the following is an essential feature to consider when selecting a
diving mask?
Purge valve
High internal volume
Tempered or safety glass
Metal frame - answer Tempered or safety glass
Snorkels over 15 inches (38 centimeters) in length are not recommended
primarily because:
They have too much dead air space.
They are likely to become tangled.
They are not economical to manufacture.
They are top-heavy and difficult to use. - answer They have too much
dead air space.
When buying or renting equipment for diving, the most important
consideration is:
Its cost.
,Its fit on your body.
How recently it was developed.
Its durability. - answer Its fit on your body.
When rinsing a regulator it is best to:
Leave the regulator attached to the tank or have the dust cap in place.
Depress the purge button several times.
Use ionized water.
Have the first stage lower than the second stage. - answer Leave the
regulator attached to the tank or have the dust cap in place.
Three features that are common to all buoyancy control devices are:
An integrated weight system, bright color, inflation/deflation hose.
An overpressure relief valve, CO2 inflation cartridge, alternate air source.
An alternate air source, low pressure inflator, overpressure relief valve.
An overpressure relief valve, inflation/deflation hose, low pressure inflator
hose. - answer An overpressure relief valve, inflation/deflation hose, low
pressure inflator hose.
Three types of alternate air sources that are in common use today are:
,Full face masks, completely redundant systems, octopus rigs.
Octopus rigs, completely redundant systems, an integrated regulator into
the BCD inflation/deflation hose.
Titanium cylinders, full face masks, octopus rigs.
Integrated regulator into the BCD inflation/deflation hose, octopus rigs,
technical rigs. - answer Octopus rigs, completely redundant systems, an
integrated regulator into the BCD inflation/deflation hose.
According to the United States Department of Transportation regulations,
scuba tanks must be hydrostatically tested every:
1 year
3 years
5 years
10 years - answer 5 years
The most important functional feature of a weight belt or weight system
is:
A means for ditching the weights immediately with one hand.
Comfort.
The capability of the belt or system to use only certain types of weight
media.
, Bright color for ease of identification. - answer A means for ditching the
weights immediately with one hand.
The primary purpose of the exposure suit is to:
Preserve body heat during dives.
Look good while diving.
Provide buoyancy during dives.
Prevent scrapes and cuts during dives. - answer Preserve body heat
during dives.
At a minimum, while diving, most dive computers display:
Minimum depth, actual bottom time, water temperature.
Maximum depth, current depth, actual bottom time, remaining allowable
bottom time.
Maximum depth, remaining allowable bottom time, air temperature.
Minimum depth, current depth, unavailable bottom time. - answer
Maximum depth, current depth, actual bottom time, remaining allowable
bottom time
You should have your regulator serviced by a certified repair technician:
Once every five years.
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