SCUBA Dive SSI Final Test Questions
and Answers Rated A+
Describing diving with the acronym SCUBA came from what event? ✔✔The development of the
demand regulator in 1943
One atmosphere of pressure is defined as: ✔✔al
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SCUBA Dive SSI Final Test Questions
and Answers Rated A+
Describing diving with the acronym SCUBA came from what event? ✔✔The development of the
demand regulator in 1943
One atmosphere of pressure is defined as: ✔✔all correct:
-1 ata
-Each 34 feet of depth in freshwater
-Each 33 feet of depth in sea water
Ear squeeze can be prevented by: ✔✔All answers are correct
-Never diving with a cold
-Rotating the jaw, swallowing or Valsalva
-Relaxing
Sinus squeeze can be prevented by: ✔✔not diving with a cold
The underwater bending of light rays makes objects appear ✔✔closer
The greatest relative pressure change in sea water takes place between ____ and ____ feet. ✔✔0/33
Gauge pressure is defined as: ✔✔Absolute pressure minus 1 ata
earplugs should: ✔✔never be worn while diving
Body heat is lost underwater ___ than in air. ✔✔25 to 30 times faster
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: ✔✔2
ata
Which of the statements concerning sound transmission underwater is correct? ✔✔all answers are
correct
-travels farther
-4x faster
-hard to know which direction
The first symptom of a sinus squeeze is usually: ✔✔a sharp pain or wedging sensation above the
eyes
If a 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) ✔✔10 cu ft
The most efficient breathing pattern for scuba diving is: ✔✔A deep balanced inhalation followed
by a long balanced exhalation without any pause between inhaling and exhaling
A scuba cylinder must be hydrostatically tested: ✔✔Within fixed intervals set by local law
During normal diving activities, divers should never exceed an ascent rate of __ feet per minute.
✔✔30
A scuba tank for recreational diving should be filled with: ✔✔Pure, filtered compressed air or
Nitrox
Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __ as much air
as diving at 2 ata. ✔✔2 tim
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