SSI Open Water Study Guide QUESTIONS And
CORRECT ANSWERS
Describing diving with the acronym SCUBA came from what event? - Correct Answer
The Demand For the Regulator
The condition in which certain colors are diminished as depth increases is called: -
Correct Answer Absorption
Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per
cubic foot. - Correct Answer 64/62.5
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) - Correct Answer 10 cu
One atmosphere of pressure is defined as: - Correct Answer *1 ATA
*Each 34ft Depth of Fresh water
*Each 33ft Depth of Salt water
Gauge pressure is defined as: - Correct Answer absolute pressure minus 1 ATA
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is: - Correct Answer 2 ATA
Which of the statements concerning sound transmission underwater is correct? -
Correct Answer *Sound will travel farther underwater than air
*Divers find it difficult to locate the direction of a sound pronouncing source
*Sound travels four times faster underwater than in air
The greatest relative pressure change in sea water takes place between ____ and ____
feet. - Correct Answer 0/33ft
Sinus squeeze can be prevented by: - Correct Answer Not diving with a cold
Earplugs: - Correct Answer Should never be worn when diving
The first symptom of a sinus squeeze is usually: - Correct Answer A sharp pain or
wedging sensation above the eyes
If you experience pain in your ears during descent: - Correct Answer Stop the decent
and ascend until the pain stops
Absolute pressure is defined as: - Correct Answer *The total pressure exerted on an
object
, The purpose of equalization is to: - Correct Answer Introduce additional air into body
air spaces in response to increasing external pressure
The absolute pressure expressed in terms of atmospheres absolute at 99 feet in salt
water is: - Correct Answer 4 ATA
Proper equalization techniques must be learned in order to: - Correct Answer *Prevent
ear pain
*prevent sinus squeeze
*prevent squeeze injuries
Underwater, the bending of light rays causes objects to appear to be: - Correct Answer
closer
During normal diving activities, divers should never exceed an ascent rate of __ feet per
minute. - Correct Answer 30
The three Basic Rules of Scuba stated in the proper order of importance are: - Correct
Answer Breathe continuously, ascend slowly and maintain control, and never dive
alone or beyond your level of training (3 B's breath, bubbles, and buddy)
An object immersed in water will be buoyed upward by a force ______ the weight of the
water it displaces. - Correct Answer equal to
A high pressure scuba cylinder should be stored: - Correct Answer secured and with a
minimum of 500 to 750 psi
The most efficient breathing pattern for scuba diving is: - Correct Answer A deep
balanced inhalation followed by a long balance exhalation without any pauses between
inhalation and exhalation.
A scuba cylinder must be hydrostatically tested: - Correct Answer within fixed intervals
set by local laws
A scuba tank for recreational diving should be filled with: - Correct Answer pure,
filtered compressed air or nitrox
The three primary features to look for in a quality Exposure System are: - Correct
Answer Thickness, fit and seam integrity.
Which of the following Total Diving System subsystems best describes the SCUBA
unit? - Correct Answer the delivery system
The Information System components are: - Correct Answer Dive Computer, Analogue
Instruments, if the Dive Computer does not supply all necessary information and SSI
Total DiveLog
CORRECT ANSWERS
Describing diving with the acronym SCUBA came from what event? - Correct Answer
The Demand For the Regulator
The condition in which certain colors are diminished as depth increases is called: -
Correct Answer Absorption
Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per
cubic foot. - Correct Answer 64/62.5
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) - Correct Answer 10 cu
One atmosphere of pressure is defined as: - Correct Answer *1 ATA
*Each 34ft Depth of Fresh water
*Each 33ft Depth of Salt water
Gauge pressure is defined as: - Correct Answer absolute pressure minus 1 ATA
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is: - Correct Answer 2 ATA
Which of the statements concerning sound transmission underwater is correct? -
Correct Answer *Sound will travel farther underwater than air
*Divers find it difficult to locate the direction of a sound pronouncing source
*Sound travels four times faster underwater than in air
The greatest relative pressure change in sea water takes place between ____ and ____
feet. - Correct Answer 0/33ft
Sinus squeeze can be prevented by: - Correct Answer Not diving with a cold
Earplugs: - Correct Answer Should never be worn when diving
The first symptom of a sinus squeeze is usually: - Correct Answer A sharp pain or
wedging sensation above the eyes
If you experience pain in your ears during descent: - Correct Answer Stop the decent
and ascend until the pain stops
Absolute pressure is defined as: - Correct Answer *The total pressure exerted on an
object
, The purpose of equalization is to: - Correct Answer Introduce additional air into body
air spaces in response to increasing external pressure
The absolute pressure expressed in terms of atmospheres absolute at 99 feet in salt
water is: - Correct Answer 4 ATA
Proper equalization techniques must be learned in order to: - Correct Answer *Prevent
ear pain
*prevent sinus squeeze
*prevent squeeze injuries
Underwater, the bending of light rays causes objects to appear to be: - Correct Answer
closer
During normal diving activities, divers should never exceed an ascent rate of __ feet per
minute. - Correct Answer 30
The three Basic Rules of Scuba stated in the proper order of importance are: - Correct
Answer Breathe continuously, ascend slowly and maintain control, and never dive
alone or beyond your level of training (3 B's breath, bubbles, and buddy)
An object immersed in water will be buoyed upward by a force ______ the weight of the
water it displaces. - Correct Answer equal to
A high pressure scuba cylinder should be stored: - Correct Answer secured and with a
minimum of 500 to 750 psi
The most efficient breathing pattern for scuba diving is: - Correct Answer A deep
balanced inhalation followed by a long balance exhalation without any pauses between
inhalation and exhalation.
A scuba cylinder must be hydrostatically tested: - Correct Answer within fixed intervals
set by local laws
A scuba tank for recreational diving should be filled with: - Correct Answer pure,
filtered compressed air or nitrox
The three primary features to look for in a quality Exposure System are: - Correct
Answer Thickness, fit and seam integrity.
Which of the following Total Diving System subsystems best describes the SCUBA
unit? - Correct Answer the delivery system
The Information System components are: - Correct Answer Dive Computer, Analogue
Instruments, if the Dive Computer does not supply all necessary information and SSI
Total DiveLog
