SDI Open Water Scuba Diver Exam Questions and Answers | Latest Update 2024/2025
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Course
SDI
Institution
SDI
Objects under water appear
~~> Closer and larger than they do on land
How much faster does sound travel in water, compared to air?
~~> 4 times
Water conducts heat away from your body
~~> 25 times faster than air does
As you descend
~~> colors fade, reds and oranges fade first...
When water stratifies itself into layers, according to temperature, the
boundary between layers is known as a(n):
1: Halocline.
2: Ichtyocline.
3: Thermodyne.
4: Thermocline.
✓ ~~> Thermocline
What is the primary cause of waves?
✓ ~~> wind
Which of the following factors do we take into account when measuring
waves?
✓ ~~> Height, Length
Which of the following is incorrect?
✓ ~~> Waves are not hazardous to divers during shore dives
The consequences of becoming cold under water include the following
except
✓ ~~> improved judgment and coordination
Because sound travels faster under water:
Master01 | September, 2024/2025 | Latest update
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