FINAL EXAM QUESTIONS WITH
CORRECT VERIFIED SOLUTIONS
LATEST UPDATE EXAM
My primary considerations when choosing fins are fit and -
ANSWER>>blade size
Regulator - ANSWER>>delivers breathing air at the surrounding pressure when
you inhale and directs exhaled air into the air
Cylinder - ANSWER>>holds the high-pressure breathing air supplied by your
regulator during the dive
Weight System - ANSWER>>holds lead weight to counteract the positive
buoyancy of your body and some of your equipment, with a mechanism for
dropping some or all the weight in an emergency
The five components that make up a BCD include - ANSWER>>an inflatable
bladder, a cylinder band and harness/jacket, an LPI (low-pressure inflator)
mechanism, an overpressure/quick exhaust valves, and a weight system
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,LPI mechanism - ANSWER>>inflates the BCD with air from my scuba
cylinder
Burst disk - ANSWER>>a safety device that relieves accidental overpressure by
releasing air before reaching the pressure at which the cylinder would fail
scuba cylinders require pressure testing _______ and visual inspection
_________ - ANSWER>>every 2-5 years, annually
The most important feature in my weight system is its - ANSWER>>quick
release
Trim means having the right _____ of weight - ANSWER>>distribution
Failure to follow the most important rule in scuba diving can cause serious lung
overexpansion injuries, which in turn can cause paralysis and death -
ANSWER>>true
An object that is neutrally bouyant in fresh water will _____ in salt water -
ANSWER>>float
Underwater objects appear - ANSWER>>larger and/or closer
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, Sound travels about 4 times _____ in water than in air, making it difficult to
determine its source - ANSWER>>faster
To move efficiently as a diver, I should move - ANSWER>>slowly and steadily
Trim is important for streamlining because - ANSWER>>poor trim raises or
lowers my feet, causing drag
BCD (buoyancy control device) - ANSWER>>holds your kit together and
allows you to adjust buoyancy throughout the dive
As a newly certified PADI Open Water Diver, I will be trained to dive with
buddy as deep as - ANSWER>>18 metres/60 feet
As you descend in water, the pressure - ANSWER>>increases
A depth change of 10 metres/33 feet causes a pressure change of -
ANSWER>>1 bar/ata (atmosphere)
if you take 6 liters of air from the surface to 20 metres/66 feet, the volume
will be - ANSWER>>2 litres (the density of the air would be three times the
density at the surface)
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