100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
SDI Scuba Certification Exam Study Guide Questions and Answers (100% Pass) $11.49   Add to cart

Exam (elaborations)

SDI Scuba Certification Exam Study Guide Questions and Answers (100% Pass)

 6 views  0 purchase
  • Course
  • SDI
  • Institution
  • SDI

Define SCUBA → S - self → C - contained → U - underwater → B - breathing → A - apparatus List 3 important scuba diving changes that occurred in 1950s → 1) published USN dive tables → 2) invented the personal dive computer → 3) equipment manufacturers made improvements to t...

[Show more]

Preview 3 out of 25  pages

  • September 25, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • SDI
  • SDI
avatar-seller
ExamArsenal
1 | P a g e | © copyright 2024/2025 | Grade A+



SDI Scuba Certification Exam Study
Guide Questions and Answers (100%
Pass)
Define SCUBA


→ S - self

→ C - contained

→ U - underwater

→ B - breathing

→ A - apparatus




List 3 important scuba diving changes that occurred in 1950s


→ 1) published USN dive tables

→ 2) invented the personal dive com puter

→ 3) equipment manufacturers made improvements to the design

and workmanship of gear




Name 3 different devices that modern dive computers replace


→ 1) dive tables

→ 2) J-valves




Master01 | September, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+


→ 3) depth gauges




What sets SDI apart from other training agencies?


→ First dive training agency to provide entry level scuba

instruction that incorporates the use of personal dive

computers --> more streamlined scuba course w/ more

instruction time in the water




How much larger and closer do objects appear underwater and why?


→ Objects underwater appear 25% larger and 25% closer




As light travels through the airspace created by the mask, it bends, creating

a magnifying effect.




How much faster does sound move through water than air and why?


→ 4 times faster because water is about 800 times denser than

air.




What is the first color to be absorbed underwater?



Master01 | September, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+


→ Red (within first 25 feet)




When diving from shore, the best time to dive is when there is the least

amount of tidal current. _______ tide is when there is no horizontal water

movement.


→ Slack tide




If you are caught in a rip current, first swim _____ to the current to get out of it

before swimming towards shore.


→ Parallel




Waves are usually caused by


→ Wind pushing water on the surface




T or F: Anticipate surge action to avoid contact with stationary objects


→ True




What type of marine life cause most diving injuries?




Master01 | September, 2024/2025 | Latest update

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 ExamArsenal. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.49. 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

Start selling
$11.49
  • (0)
  Add to cart