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SSI OPEN WATER STUDY questions with answers
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SSI OPEN WATER STUDY questions with answers
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SSI OPEN WATER STUDY questions withanswers
absolute pressure is defines as - ANSWER: ➡ The total pressure exerted on an object
Proper equalization techniques must be learned in order to: - ANSWER: ➡ 1) Prevent squeeze
injuries
2) Prevent ear pain
3) Prevent sinus squeeze
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -
ANSWER: ➡ 2 ata
should earplugs be worn during diving - ANSWER: ➡ no
Gauge pressure is defined as: - ANSWER: ➡ absolute pressure minus 1 ATA
The greatest relative pressure change in sea water takes place between how many feet - ANSWER: ➡
0/33
Ifa flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume be at
99 feet in sea water? (rounded off) - ANSWER: ➡ 10
Which of the statements concerning
sound transmission underwater is correct? - ANSWER: ➡ Sound will travel farther underwater than
in air All answers are correct Sound travels four times faster underwater than in air Divers find it
difficult to locate the direction of a sound producing source All
, body heat is lost how much faster under water - ANSWER: ➡ 25 to 30
why should you equalize your ears - ANSWER: ➡ Introduce additional air into body air spaces in
response to increasing external pressure
how do light waves under water appear - ANSWER: ➡ closer
Describing diving with the acronym
SCUBA came from what event? - ANSWER: ➡ The development of the demand regulator in 1943
how many atmospheres are there at a depth of 33 feet - ANSWER: ➡ 2
how is sinus squeeze prevented - ANSWER: ➡ not diving with a cold
The condition in which certain colors are diminished as depth increases is called: - ANSWER: ➡
absorption
the first symptom of sinus squeeze is - ANSWER: ➡ a sharp pain between the eyes
The three primary features to look for in a quality Exposure System are - ANSWER: ➡ Thickness, fit
and seam integrity.
A high pressure scuba cylinder should be stored: - ANSWER: ➡ Secured and with an minimum of
500 to 750 psi
The Buoyancy Control System
Components are: - ANSWER: ➡ BC, inflation device, & weight belt/BC weight pockets
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