SSI Open Water Diver - ch. 1-3 || Questions and 100% Verified Answers.
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Course
SSI Open Water Diver
Institution
SSI Open Water Diver
One atmosphere of pressure is defined as:
Each ______ feet of depth in freshwater
each ______ ft. of depth in saltwater
____ ata correct answers 34, 33, 1
The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: correct answers 2 ata
Underwater, th...
SSI Open Water Diver - ch. 1-3 || Questions and 100%
Verified Answers.
One atmosphere of pressure is defined as:
Each ______ feet of depth in freshwater
each ______ ft. of depth in saltwater
____ ata correct answers 34, 33, 1
The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: correct
answers 2 ata
Underwater, the bending of light rays causes objects to appear to be: correct answers Closer
If you experience pain in your ears during descent: correct answers Stop the descent and ascend
until the pain stops.
Sinus squeeze can be prevented by: correct answers Not diving with a cold
Ear squeeze can be prevented by:
(3 answers) correct answers Rotating the jaw, swallowing or Valsalva
Never diving with a cold
Relaxing
The purpose of equalization is to: correct answers Introduce additional air into body air spaces in
response to increasing external pressure
Describing diving with the acronym SCUBA came from what event? correct answers The
development of the demand regulator in 1943
The most efficient breathing pattern for scuba diving is: correct answers A deep balanced
inhalation followed by a long balanced
Which of the following Total Diving System subsystems best describes the SCUBA unit?
The _____ system correct answers The delivery system
Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __ times as
much air as diving at 2 ata. correct answers 2
An object immersed in water will be buoyed upward by a force ______ the weight of the water it
displaces. correct answers equal to
,The three primary features to look for in a quality Exposure System are: correct answers
Thickness, fit, and seam integrity
The three Basic Rules of Scuba stated in the proper order of importance are:
breathe ______
ascend ______ and ______ ________
never _____ _______ or _______ your ______ __ ______- correct answers Breathe
continuously, ascend slowly and maintain control, and never dive alone or beyond your level of
training.
The delivery system components are: correct answers A regulator, alternate air source, and a
high pressure scuba cylinder
The Buoyancy Control System components are:
a) Buoyancy compensator, exposure suit, and inflation device
b) Buoyancy compensator and inflation device
c) Regulator, inflation device, and weight belt or BC weight pockets
d) Buoyancy compensator, inflation device, and weight belt or BC weight pockets correct
answers Buoyancy compensator, inflation device, and weight belt or BC weight pockets
If a flexible air-filled container at 100 feet of sea water has a volume of 10 cu ft, what would be
the volume if it were transported to the surface?
a) 30 cu ft
b) 20 cu ft
c) 15 cu ft
d) 40 cu ft correct answers 40 cu ft
Haldanes theory that the human body can withstand a 2:1 pressure difference was revised by D
Workman to a nitrogen ratio of:
a) 5 : 1
b) 1 : 1
c) 1.58 : 1
, d) 3 : 1 correct answers 1.58 : 1
The only accepted treatment for Arterial Gas Embolism is:
a) All are accepted treatments
b) Immediate recompression by taking the victim underwater to relieve the symptoms
c) Stabilize in nearest medical facility and transport to decompression chamber for
recompression
d) Surgery to repair the ruptured lung correct answers Stabilize in nearest medical facility and
transport to decompression chamber for recompression
The major, and most common, symptom of decompression sickness is:
a) Respiratory failure
b) Joint pain
c) Puffiness in the neck and shoulder areas
d) A feeling of euphoria correct answers Joint pain
The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of the:
a) Blood vessels
b) Bronchiole trees
c) Arteries
d) Alveoli correct answers Alveoli
The best prevention for decompression sickness is to:
a) Dive with a buddy that has a computer
b) Plan your dive and dive your plan
c) Never hold your breath
d) Never dive below 100 ft. correct answers Plan your dive and dive your plan
The proper first aid for Arterial Gas embolism, Subcutaneous emphysema, Pneumothorax, and
Mediastinal Emphysema is:
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