SCUBA, SSI Open Water Diver Final Exam 2023(answered)
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SCUBA, SSI
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SCUBA, SSI
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1[Date]SCUBA, SSI Open Water Diver Final Exam 2023(answered)
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is:
-A: 2 ata
-B:1 ata
-C: 4 ata -D: 3 ata - Correct answer A: 2 ata
Gauge pressure is defined as:
-A: Hydrostatic pressure minus 1 ata -B: The pressure at the surface
-C: The depth reading on a gauge -D: Absolute pressure minus 1 ata - Correct answer D: Gauge pressure is defined as Absolute pressure minus 1 ata
The first symptom of a sinus squeeze is usually:
-A: a dull pain deep within the head -B: a sharp pain at the base of the neck -C: a crushing pain high in the chest
-D: a sharp pain above the eyes - Correct answer D: a sharp pain above the eyes
If you experience pain in the ear during descent:
-A: Stop the descent and ascend till the pain stops
-B: abort the dive
-C: place a finger in the ear canal and gently massage the ear until the pain ceases
-D: continue the descent while gently exhaling into the mask - Correct answer A: Stop the descent and ascend till the pain stops.
Body heat is lost at a rate of ___ than air. - Correct answer 25-30 times faster 2[Date]Proper equalization techniques must be learned in order to:
-A: prevent sinus squeeze
-B: prevent ear pain
-C: prevent squeeze injuries
-D: all answers are correct - Correct answer D
The purpose of equalization is to:
-A: ensure the uneven application of pressure between the water and air spaces in the body
-B: prevent water from entering air spaces in the body -C: introduce additional air into body air spaces in response to increasing external pressure -D: remove all fluids from body air spaces - Correct answer C: introduce additional air into body air spaces in response to increasing external pressure
The three primary features to look for in a quality Exposure System are: - Correct answer Thickness, fit, & seam integrity
An object immersed in water will be buoyed upward by a force ______ to the weight of the water it displaces. - Correct answer equal
A high pressure scuba cylinder should be stored:
-A: secured with a minimum of 500 to 750 psi
-B: lying flat with no air
-C: with the valve slightly open to allow air expansion
-D: secured with the valve open - Correct answer A: A high pressure scuba cylinder should be stored secured with a minimum of 500 to 750 psi
One of the primary factors contributing to heat loss for divers is:
-A: Absorption
-B: Convection 3[Date]-C: Diffusion
-D: Refraction - Correct answer B: One of the primary factors contributing to heat loss for divers is Convection
The Information System components are:
A: Dive Computer
B: Analogue Instruments
C: SSI DiveLog
D: All the above - Correct answer D: All of the above (Dive Computer, Analogue Instruments, & SSI DiveLog)
The purpose of a BC is to: - Correct answer -Provide surface floatation
-Maintain neutral buoyancy during the dive
-Control ascent and descent rates
Under the SSI Equipment Service Program, your Delivery System should be serviced and performance checked:
-A: every 3 years -B: every 5 years -C: every month -D: every year - Correct answer D: every year
Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __ as much air as diving at 2 ata. - Correct answer 2 times
During normal diving activities, divers should never exceed an ascent rate of __ feet per minute.
- Correct answer 30
A scuba tank for recreational diving should be filled with:
-A: A mixture of helium and oxygen
-B: Pure, filtered compressed air or Nitrox
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