Exam (elaborations)
SDI Open Water Scuba Diver Exam Questions and Complete Solutions Graded A+
- Course
- Institution
SDI Open Water Scuba Diver Exam Questions and Complete Solutions Graded A+
[Show more]
Content preview
SDI Open WaterScuba Diver Exam
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
,How big do Objects under water appear - Answer: Objects appear 33% larger underwater.
How far away do objects appear underwater? - Answer: Objects appear 25% closer.
How much faster does sound travel in water, compared to air? - Answer: 4 times
How fast does Water conduct heat away from your body - Answer: 25 times faster than air does
As you descend what happens to colors and which colors? - Answer: colors fade, reds and oranges fade
first, 30 meters seem blue and gray
At what water temp does your body need thermal protection - Answer: < 86 degrees
What does SCUBA mean - Answer: 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. - Answer: Thermocline
What is the primary cause of waves? - Answer: wind
Which of the following factors do we take into account when measuring waves? - Answer: Height,
Length
Which of the following is incorrect? - Answer: Waves are not hazardous to divers during shore dives
, The consequences of becoming cold under water include the following except - Answer: improved
judgment and coordination
Because sound travels faster under water: - Answer: 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 - Answer: true
which of the following are true - Answer: Surge is the back-and-forth movement of water caused by
passing over head
Which of the following are true - Answer: The sun warming water near the equator, coupled with the
earth's rotation, is the primary cause of permanent ocean currents
despite its apparent warmth, divers in warm waters still need to consider to wear protection - Answer:
true
longshore currents always move in the same direction as prevailing offshore currents - Answer: false
a rip current is a narrow flow of swiftly moving water that runs parallel to shore - Answer: false
the trick to dealing with surge is to anticipate its action in order to avoid contact with stationary objects
- Answer: true
what is the most effective way to get out of a rip current - Answer: swim parallel to shore, until out of
current
the best time to dive is during a slack tide - Answer: true
we pose greater threat to underwater plants and animals - Answer: true
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Dants. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
