SDI Open Water Scuba Diver Exam Study Questions And Answers UPDATED 2024
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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 UPDATED 2024
POSSIBLEA
SDI
8/12/24
, SDI Open Water Scuba Diver Exam Study Questions And Answers UPDATED 2024
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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