2
SSI Open Water Diver - Section 1 Exam with verified
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detailed answers ||
If a flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume be
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at 99 feet in sea water? (rounded off) - ✔✔10 cu ft
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Earplugs - ✔✔Should never be worn when diving || || || || || || ||
Proper equalization techniques must be learned in order to: - ✔✔1) Prevent squeeze injuries
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2) Prevent ear pain
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3) Prevent sinus squeeze
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The purpose of equalization is to: - ✔✔Introduce additional air into body air spaces in response to
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increasing external pressure
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The greatest relative pressure change in sea water takes place between ___ and ___ feet. - ✔✔0
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and 33 feet || ||
Underwater, the bending of light rays causes objects to appear to be: - ✔✔Closer || || || || || || || || || || || || ||
The first symptom of a sinus squeeze is usually: - ✔✔A sharp pain or wedging sensation above
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the eyes ||
Describing diving with the acronym SCUBA came from what event? - ✔✔The development of
|| || || || || || || || || || || || || ||
the demand regulator in 1943
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SSI Open Water Diver - Section 1 Exam with verified
|| || || || || || || || || ||
detailed answers ||
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
|| || || || || || || || || || ||
Earplugs - ✔✔Should never be worn when diving || || || || || || ||
Proper equalization techniques must be learned in order to: - ✔✔1) Prevent squeeze injuries
|| || || || || || || || || || || || ||
2) Prevent ear pain
|| || ||
3) Prevent sinus squeeze
|| || ||
The purpose of equalization is to: - ✔✔Introduce additional air into body air spaces in response to
|| || || || || || || || || || || || || || || ||
increasing external pressure
|| || ||
The greatest relative pressure change in sea water takes place between ___ and ___ feet. - ✔✔0
|| || || || || || || || || || || || || || || || ||
and 33 feet || ||
Underwater, the bending of light rays causes objects to appear to be: - ✔✔Closer || || || || || || || || || || || || ||
The first symptom of a sinus squeeze is usually: - ✔✔A sharp pain or wedging sensation above
|| || || || || || || || || || || || || || || || ||
the eyes ||
Describing diving with the acronym SCUBA came from what event? - ✔✔The development of
|| || || || || || || || || || || || || ||
the demand regulator in 1943
|| || || ||
