Sdi open water Study guides, Class notes & Summaries

SDI OPEN WATER EXAM 2024 WITH 100% CORRECT ANSWERS What is the absolute pressure (in atm) at 66 feet? - correct 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? - correct 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? - correct answer 4 X as dense What is the abbreviation for an atmosphere? - correct answer atm If a scub...

SDI OPEN WATER SCUBA DIVER EXAM | QUESTIONS WITH 100% CORRECT ANSWERS

How big do Objects underwater appear Objects appear 33% larger underwater. How far away do objects appear underwater? Objects appear 25% closer. How much faster does sound travel in water, compared to air? 4 times How fast does Water conduct heat away from your body 25 times faster than air does As you descend what happens to colors and which colors? colors fade, reds and oranges fade first, 30 meters seem blue and gray At what water te

SDI Open Water Scuba Diver Exam + Q's and correct answers How big do Objects underwater appear Objects appear 33% larger underwater. How far away do objects appear underwater? Objects appear 25% closer. How much faster does sound travel in water, compared to air? 4 times How fast does Water conduct heat away from your body 25 times faster than air does As you descend what happens to colors and which colors? colors fade, reds and oranges fade first, 30 meters seem blue and gray At wh...

SDI Open Water Questions and Answers 100% Pass Describe all the steps to assemble a BCD and regulator to a scuba cylinder. 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 right. Screw the kn...

Describe all the steps to assemble a BCD and regulator to a scuba cylinder. - 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 right. Screw the knob on your first stage until it is finger...

Describe all the steps to assemble a BCD and regulator to a scuba cylinder. - 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 right. Screw the knob on your first stage until it is finger...

SDI OPEN WATER SCUBA DIVER EXAM

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...

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...