Sdi open water Study guides, Class notes & Summaries
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SDI OPEN WATER (CH 3- SCUBA EQUIPMENT) EXAM 2024
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SDI OPEN WATER (CH 3- SCUBA EQUIPMENT) EXAM 2024 
 
What is the main purpose of a snorkel? - correct answer It's used when a long swim on the surface is required in order to conserve air in the tanks. 
 
How do you know if a mask fits correctly? - correct answer 1. Press the mask against your face without using the strap 2. Make sure there's no hair under the skirt of the mask 3. Inhale slightly 4. If the mask tightens against your face and doesn't fall off it's a good fit. 
 
Name at leas...
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SDI OPEN WATER EXAM
- Exam (elaborations) • 8 pages • 2023
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What is the absolute pressure (in atm) at 66 feet? - Answer- 2 atm 
 
What will be the volume in a ball that is filled with two cubic feet of air at 99 feet when it's taken to the surface? - Answer- 8 cubic feet 
 
How many more times dense is the air in a balloon at 4 atm compared to the air density at the surface? - Answer- 4 X as dense 
 
What is the abbreviation for an atmosphere? - Answer- atm 
 
If a scuba cylindar lasts 2 hours (120 minutes) at sea level, how long will it last at 66 feet...
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SDI Open Water Exam Questions And Answers With Complete Solutions
- Exam (elaborations) • 11 pages • 2024
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SDI Open Water Exam Questions And Answers With Complete Solutions
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SDI OPEN WATER (CH 1- THE UNDERWATER ENVIRONMENT) EXAM 2024
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SDI OPEN WATER (CH 1- THE UNDERWATER ENVIRONMENT) EXAM 2024 
 
What does SCUBA stand for? - correct answer Self 
Contained 
Underwater 
Breathing 
Aparatus 
 
List 3 important scuba diving changes that occurred in the 1950's. - correct answer 1. US Navy Dive tables published in 1957 
2. First personal dive computer invented in 1959 
3. Dramatic improvements in personal diving equipment 
 
What sets SDI (Scuba Diving International) apart from other diving training agencies? - correct answer Th...
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SDI Open Water Questions with complete solution
- Exam (elaborations) • 12 pages • 2024
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SDI Open Water Questions with complete 
solution 
Describe all the steps to assemble a BCD and regulator to a scuba cylinder. - 
answer-Spin the tank around so that the back of the valve is facing you. Place the BCD 
band(s) over the top of the cylinder so that the back of the BCD is facing you. Raise or 
lower the BCD so the top is even with the cylinder valve. Fasten the buckles. Remove 
dust cap, hold first stage in left hand, rotate the chambers until the primary second 
stage sits on the ri...
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SDI Open Water Scuba Diver Exam questions and answers .
- Exam (elaborations) • 10 pages • 2024
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SDI Open Water Scuba Diver Exam questions and answers .
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SDI Open Water Scuba Diver Exam Questions and answers 2024
- Exam (elaborations) • 7 pages • 2024
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SDI Open Water Scuba Diver Exam 
Questions and answers 2024 
Objects under water appear - ANSWER-Closer and larger than they do on land 
How much faster does sound travel in water, compared to air? - ANSWER-4 times 
Water conducts heat away from your body - ANSWER-25 times faster than air does 
As you descend - ANSWER-colors fade, reds and oranges fade first, 30 meters seem 
blue and gray 
water temp does your body need thermal protection - ANSWER-86 degrees 
What does SCUBA mean - ANSWER-self-c...
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SDI Open Water Set questions and answers
- Exam (elaborations) • 9 pages • 2024
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SDI Open Water Set questions and answers
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SDI Open Water Scuba Diver Exam + Q's and correct answers
- Exam (elaborations) • 23 pages • 2024
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SDI Open Water Scuba Diver Exam + Q's and correct answers
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SDI Open Water exam with correct solutions
- Exam (elaborations) • 5 pages • 2023
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What is the absolute pressure (in atm) at 66 feet? 
2 atm 
 
 
 
What will be the volume in a ball that is filled with two cubic feet of air at 99 feet when it's taken to the surface? 
8 cubic feet 
 
 
 
How many more times dense is the air in a balloon at 4 atm compared to the air density at the surface? 
4 X as dense 
 
 
 
What is the abbreviation for an atmosphere? 
atm 
 
 
 
If a scuba cylindar lasts 2 hours (120 minutes) at sea level, how long will it last at 66 feet? 
40 minutes 
 
 
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