Exam (elaborations)
SDI Scuba Certification Exam Study Guide Questions and Complete Solutions Graded A+
- Course
- Institution
SDI Scuba Certification Exam Study Guide Questions and Complete Solutions Graded A+
[Show more]
Content preview
SDI Scuba CertificationExam Study Guide
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
, Define SCUBA - Answer: S - self
C - contained
U - underwater
B - breathing
A - apparatus
List 3 important scuba diving changes that occurred in 1950s - Answer: 1) published USN dive tables
2) invented the personal dive computer
3) equipment manufacturers made improvements to the design and workmanship of gear
Name 3 different devices that modern dive computers replace - Answer: 1) dive tables
2) J-valves
3) depth gauges
What sets SDI apart from other training agencies? - Answer: 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? - Answer: 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? - Answer: 4 times faster because
water is about 800 times denser than air.
What is the first color to be absorbed underwater? - Answer: 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. - Answer: Slack tide
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)
80796 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now