Exam (elaborations)
SDI Final Exam Graded A+
- Course
- Institution
SDI Final Exam Graded A+
[Show more]
Content preview
SDI Final Exam Graded A+A mask must cover the nose:
1: To prevent water from entering.
2: To ensure the best possible fit.
3: So that you can keep the pressure inside the mask equal to the pressure outside.
4: Both the first and second answers are correct. - ANSWER-So that you can keep the
pressure inside the mask equal to the pressure outside.
A scuba cylinder that normally lasts one hour at the surface will last _______ minutes at
20 meters/66 feet.
1: 30
2: 20
3: 15
4: 10 - ANSWER-20
Explanation:
A scuba cylinder that normally lasts one hour at the surface will last 20 minutes at 20
m/66 ft.
Activities that may increase the risk of decompression sickness include:
1: Alcohol use.
2: Computer use.
3: Drug use.
4: Both the first and third answers are correct. - ANSWER-Correct Answer:
Both the first and third answers are correct.
Explanation:
Activities that may increase the risk of decompression sickness include alcohol and
drug use.
Additional features common to many dive computers include all of the following except:
Answer 1: The ability to display dive log data and to upload that data to a laptop or
desktop computer.
Answer 2: The ability to monitor a diver's exposure to air, Nitrox and Trimix.
Answer 3: The ability to project no-decompression limits for upcoming dives.
Answer 4: Bar graphs that provide a visual representation of a diver's exposure to
nitrogen and other gasses. - ANSWER-Correct Answer: The ability to monitor a diver's
exposure to air, Nitrox and Trimix.
Explanation: While most dive computers can monitor a diver's exposure to air and
Nitrox, few can track exposure to Trimix
(an oxygen/nitrogen/helium mixture).
, Air passages such as your trachea (windpipe), which may contain air your body can't
use, are known as:
1: Brachia.
2: Bronchials.
3: Dead air spaces.
4: Restricted orifices. - ANSWER-Correct Answer:
Dead air spaces.
Explanation:
Air passages such as your trachea (windpipe), which may contain air your body can't
use, are known as dead air spaces.
All of the following are true except:
1: You can help prevent mask squeeze by exhaling periodically into your mask during
ascent.
2: Regular dental care and ensuring your teeth are free of gas spaces can help prevent
tooth squeeze.
3: If you experience a reverse block, descend to a point where the pain subsides, then
ascend slowly while wiggling your jaw and swallowing. Repeat this process as needed
until you can ascend without pain or discomfort.
4: The danger in taking decongestants is that they may wear off during a dive and have
other possible side effects. - ANSWER-You can help prevent mask squeeze by exhaling
periodically into your mask during ascent.
Among the best ways to prevent decompression sickness (DCS):
1: Remain well within your dive computer's no-decompression limit.
2: Ascend no faster than the rate allowed by the dive computer.
3: Make a safety stop of between three and five minutes at a depth of 3-6 m/10-20 ft.
4: All of the above. - ANSWER-All of the above.
Among the easiest ways to don a heavy weight belt, at the surface or under water, is to:
1: Pass it under your feet.
2: Roll into it.
3: Back into it.
4: None of the above. - ANSWER-Correct Answer:
Roll into it.
Explanation:
Among the easiest ways to don a heavy weight belt, at the surface or under water, is to
roll into it.
Among the key points in doing a flutter kick correctly:
1: Keep your knees as straight as possible.
2: Emulate the leg movements you make when pedaling a bicycle.
3: Keep your toes pointed.
4: Both the first and third answers are correct. - ANSWER-Correct Answer:
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 CLOUND. 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)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now