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2025 Latest SSI Open Water Diver Certification
Exam – 150 Practice Questions and Correct
Answers / SSI Open Water Diver Practice Test
One atmosphere of pressure is defined as:
a) Each 34 feet of depth in freshwater
b) each 33 ft. of depth in saltwater
c) 1 ata
d) All answers are correct. - ...ANSWER...✓✓ All answers
are correct
The absolute pressure expressed in terms of
atmospheres absolute at 33 ft. in sea water is:
a) 1 ata
b) 3 ata
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c) 2 ata
d) 4 ata - ...ANSWER...✓✓ 2 ata
Underwater, the bending of light rays causes objects to
appear to be:
a) closer
b) the same as the surface
c) At an angle consistent with the bend of the light
d) Farther away - ...ANSWER...✓✓ Closer
If you experience pain in your ears during descent:
a) Place a finger in the ear canal and gently massage the
ear until the pain ceases.
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b) Continue the descent while gently exhaling into the
mask
c) Abort the dive
d) Stop the descent and ascend until the pain stops. -
...ANSWER...✓✓ Stop the descent and ascend until the
pain stops.
Sinus squeeze can be prevented by:
a) Not diving with a cold
b) Wearing earplugs
c) Tilting the divers head back and forth
d) The Valsalva technique - ...ANSWER...✓✓ Not diving
with a cold
Ear squeeze can be prevented by:
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a) Rotating the jaw, swallowing or Valsalva
b) All answers are correct
c) Never diving with a cold
d) Relaxing - ...ANSWER...✓✓ All answers are correct
The purpose of equalization is to:
a) Remove all fluids from body air spaces
b) Introduce additional air into body air spaces in
response to increasing external pressure
c) Ensure the uneven application of pressure between the
water and air space in the body
2025 Latest SSI Open Water Diver Certification
Exam – 150 Practice Questions and Correct
Answers / SSI Open Water Diver Practice Test
One atmosphere of pressure is defined as:
a) Each 34 feet of depth in freshwater
b) each 33 ft. of depth in saltwater
c) 1 ata
d) All answers are correct. - ...ANSWER...✓✓ All answers
are correct
The absolute pressure expressed in terms of
atmospheres absolute at 33 ft. in sea water is:
a) 1 ata
b) 3 ata
,2|Page
c) 2 ata
d) 4 ata - ...ANSWER...✓✓ 2 ata
Underwater, the bending of light rays causes objects to
appear to be:
a) closer
b) the same as the surface
c) At an angle consistent with the bend of the light
d) Farther away - ...ANSWER...✓✓ Closer
If you experience pain in your ears during descent:
a) Place a finger in the ear canal and gently massage the
ear until the pain ceases.
,3|Page
b) Continue the descent while gently exhaling into the
mask
c) Abort the dive
d) Stop the descent and ascend until the pain stops. -
...ANSWER...✓✓ Stop the descent and ascend until the
pain stops.
Sinus squeeze can be prevented by:
a) Not diving with a cold
b) Wearing earplugs
c) Tilting the divers head back and forth
d) The Valsalva technique - ...ANSWER...✓✓ Not diving
with a cold
Ear squeeze can be prevented by:
, 4|Page
a) Rotating the jaw, swallowing or Valsalva
b) All answers are correct
c) Never diving with a cold
d) Relaxing - ...ANSWER...✓✓ All answers are correct
The purpose of equalization is to:
a) Remove all fluids from body air spaces
b) Introduce additional air into body air spaces in
response to increasing external pressure
c) Ensure the uneven application of pressure between the
water and air space in the body
