SSI OPEN WATER DIVER UPDATED COMPREHENSIVE
EXAM QUESTIONS AND ANSWERS MARKED A+
✔✔Body heat is lost underwater ___ than in air. - ✔✔25-30 times faster
✔✔Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per
cubic foot. - ✔✔64/62.5
✔✔Gauge pressure - ✔✔Absolute pressure minus 1 ata
✔✔The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is - ✔✔2 ata
✔✔Describing diving with the acronym SCUBA came from what event? - ✔✔The
development of the demand regulator in 1943
✔✔One of the primary factors contributing to heat loss for divers is - ✔✔Convection
✔✔The Buoyancy Control System components are - ✔✔Buoyancy compensator,
inflation device, and weight belt or BC weight pockets
✔✔A scuba cylinder must be hydrostatically tested - ✔✔Within fixed intervals set by
local law
✔✔Which of the following Total Diving System subsystems best describes the SCUBA
unit? - ✔✔Delivery System
✔✔Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __
as much air as diving at 2 ata - ✔✔2 times
✔✔Under the SSI Equipment Service Program, your Delivery System should be
serviced and performance checked - ✔✔Every year
✔✔During normal diving activities, divers should never exceed an ascent rate of __ feet
per minute. - ✔✔30
✔✔A high pressure scuba cylinder should be stored - ✔✔Secured and with a minimum
of 500 to 750 psi
✔✔The purpose of a BC is to - ✔✔Maintain neutral buoyancy during the dive
Control ascent and decent rates
Provide surface flotation
, ✔✔The three Basic Rules of Scuba stated in the proper order of importance are -
✔✔Breathe continuously, ascend slowly and maintain control, and never dive alone or
beyond your level of training
✔✔The Delivery System components are - ✔✔A regulator, alternate air source, and a
high pressure scuba cylinder
✔✔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
✔✔The three primary features to look for in a quality Exposure System are -
✔✔Thickness, fit, and seam integrity
✔✔The SSI Equipment Service Program is designed to - ✔✔Keep all the components
of the Total Diving System to optimal performance
✔✔A scuba tank for recreational diving should be filled with - ✔✔Pure, filtered
compressed air or Nitrox
✔✔Which of the following factors affect a diver's air consumption rate? - ✔✔Extreme
stress
Poor physical condition
Extreme exertion
✔✔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? - ✔✔40 cu ft
✔✔The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of
the - ✔✔Alveoli
✔✔Decompression sickness occurs when - ✔✔Divers stay at depth too long and
surface too quickly
Excess nitrogen bubbles into the blood and tissue
Nitrogen tissue tolerance gradient exceeded
✔✔In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____ - ✔✔0.79/0.21
ata
✔✔The only accepted treatment for Arterial Gas Embolism is - ✔✔Stablize victim and
transport to nearest decompression chamber
✔✔The proper first aid for Arterial Gas embolism, Subcutaneous emphysema,
Pneumothorax, and Mediastinal Emphysema is: - ✔✔Administer oxygen
EXAM QUESTIONS AND ANSWERS MARKED A+
✔✔Body heat is lost underwater ___ than in air. - ✔✔25-30 times faster
✔✔Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per
cubic foot. - ✔✔64/62.5
✔✔Gauge pressure - ✔✔Absolute pressure minus 1 ata
✔✔The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is - ✔✔2 ata
✔✔Describing diving with the acronym SCUBA came from what event? - ✔✔The
development of the demand regulator in 1943
✔✔One of the primary factors contributing to heat loss for divers is - ✔✔Convection
✔✔The Buoyancy Control System components are - ✔✔Buoyancy compensator,
inflation device, and weight belt or BC weight pockets
✔✔A scuba cylinder must be hydrostatically tested - ✔✔Within fixed intervals set by
local law
✔✔Which of the following Total Diving System subsystems best describes the SCUBA
unit? - ✔✔Delivery System
✔✔Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __
as much air as diving at 2 ata - ✔✔2 times
✔✔Under the SSI Equipment Service Program, your Delivery System should be
serviced and performance checked - ✔✔Every year
✔✔During normal diving activities, divers should never exceed an ascent rate of __ feet
per minute. - ✔✔30
✔✔A high pressure scuba cylinder should be stored - ✔✔Secured and with a minimum
of 500 to 750 psi
✔✔The purpose of a BC is to - ✔✔Maintain neutral buoyancy during the dive
Control ascent and decent rates
Provide surface flotation
, ✔✔The three Basic Rules of Scuba stated in the proper order of importance are -
✔✔Breathe continuously, ascend slowly and maintain control, and never dive alone or
beyond your level of training
✔✔The Delivery System components are - ✔✔A regulator, alternate air source, and a
high pressure scuba cylinder
✔✔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
✔✔The three primary features to look for in a quality Exposure System are -
✔✔Thickness, fit, and seam integrity
✔✔The SSI Equipment Service Program is designed to - ✔✔Keep all the components
of the Total Diving System to optimal performance
✔✔A scuba tank for recreational diving should be filled with - ✔✔Pure, filtered
compressed air or Nitrox
✔✔Which of the following factors affect a diver's air consumption rate? - ✔✔Extreme
stress
Poor physical condition
Extreme exertion
✔✔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? - ✔✔40 cu ft
✔✔The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of
the - ✔✔Alveoli
✔✔Decompression sickness occurs when - ✔✔Divers stay at depth too long and
surface too quickly
Excess nitrogen bubbles into the blood and tissue
Nitrogen tissue tolerance gradient exceeded
✔✔In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____ - ✔✔0.79/0.21
ata
✔✔The only accepted treatment for Arterial Gas Embolism is - ✔✔Stablize victim and
transport to nearest decompression chamber
✔✔The proper first aid for Arterial Gas embolism, Subcutaneous emphysema,
Pneumothorax, and Mediastinal Emphysema is: - ✔✔Administer oxygen
