SDI Chapter One: The Underwater Enviroment Questions And Answers Graded A+
10 views 0 purchase
Course
DI Chapter One: The Underwater Enviroment
Institution
DI Chapter One: The Underwater Enviroment
Name three How much larger and closer do objects appear underwater and why? -
️️Water is denser than air, objects underwater appear closer than they actually are
(25 percent closer). Objects also appear one third larger than they actually are.
different devices that modern dive computers rep...
Name three How much larger and closer do objects appear underwater and why? -
✔️✔️Water is denser than air, objects underwater appear closer than they actually are
(25 percent closer). Objects also appear one third larger than they actually are.
different devices that modern dive computers replace. - ✔️✔️Modern dive computers
replace the need for dive tables, gauges, and different alarms (audible and/or visual).
What does "SCUBA" stand for in scuba diving? - ✔️✔️It stands for self-contained
underwater breathing apparatus.
List the three most important scuba diving changes that occurred in the 1950s. -
✔️✔️The three most important changes were dive tables, personal dive computers
(PDC), and enhanced diving equipment.
What sets Scuba Diving International apart from other training agencies? - ✔️✔️SDI
was the first diving agency to provide entry-level instruction and incorporates the use of
dive computers.
How much faster does sound move through water than air and why? - ✔️✔️Sound
moves four times faster in the water than it does on land because water is about 800
times denser than air.
What is the first color to be absorbed underwater? - ✔️✔️Red is the first color to
disappear under water.
Waves are usually caused by _________? - ✔️✔️Wind
True or False? Anticipate surge action to avoid contact with stationary objects. -
✔️✔️True
What types of marine life cause most diving injuries? - ✔️✔️Fire coral, jellyfish, and
venomous fish on the sea floor cause the most diving injuries.
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 ACADEMICMATERIALS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
