SDI Open Water Scuba Diver Exam Study Questions and Answers 2024 Graded A
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Course
SDI Open Water Scuba Diver
Institution
SDI Open Water Scuba Diver
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, 30 meters seem blue ...
SDI Open Water Scuba Diver Exam Study
Questions and Answers 2024 Graded A
possiblea
sdi
8/12/24
, SDI Open Water Scuba Diver Exam Study Questions and Answers 2024 Graded A
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, 30 meters seem blue and
gray
water temp does your body need thermal protection - 86 degrees
What does SCUBA mean - self-contained underwater breathing apparatus
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: - Its harder to determine the direction
from which a sound is coming
Entering through surf requires special skills. These skills are often included in
beginning scuba course taught in areas in which surf entries are common - true
which of the following are true - Surge is the back-and-forth movement of water
caused by passing over head
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