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SDI Open Water Questions and Answers | Latest Update 2024/2025

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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 t...

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  • September 20, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • SDI
  • SDI
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MASTER01
1 | P a g e | © copyright 2024/2025 | Grade A+


SDI Open Water Questions and
Answers | Latest Update 2024/2025
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 tight.

Connect the low pressure inflator hose to the stem on the BCD's inflator.

Turn on the air.



How should you go about checking that your BCD is attached securely to

your cylinder?

✓ ~~> You lift up by the BCD and gently shake it.



What is the purpose of streamlining your hoses and accessories?

✓ ~~> So they don't get tangled/ in the way.



Describe from the start to finish the steps to disassemble your scuba system.




Master01 | September, 2024/2025 | Latest update

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

✓ ~~> 1. Remove accessories and weights

2. Decompress the system: Turn the valve knob completely clockwise.

Decompress one of the second gauges (purge button or the auto inflator

button to vent air remaining in the hoses)

3. Detach the LP hose from the inflator assembly by pulling the collar back on

the quick disconnect. Unscrew the yoke knob until the first stage can slip off

the top of the valve.

4. Undo the straps and remove the BCD from the cylinder.

5. Rinse off gear and fill and dump BCD



*Describe two important features of a weight system.*

✓ ~~> 1. To weigh you down

2. You can use different weights



What should you do any time the second stage is out of your mouth?

✓ ~~> Put the back up in your mouth then do either a sweep or reach

technique to get it back.



Describe two ways to clear a flooded second stage.

✓ ~~> 1. Depress the purge button before inhaling.

2. Exhale into the mouthpiece.



What is the hand signal for out-of-air?




Master01 | September, 2024/2025 | Latest update

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

✓ ~~> Flat hand cut across your neck



The thumbs up signal means "OK." True or False?

✓ ~~> False



Describe two different ways to indicate "OK".

✓ ~~> 1. Pointer thumb touch

2. Fist on your head



Describe how to perform a giant stride entry off a boat.

✓ ~~> Stand on the edge of the dive platform, check the water below to

make sure it is clear of other divers, put your right hand over your mask

and regulator and your left hand over your weight belt buckle, stand

straight, look directly ahead and take a big step out off the edge of

the platform. Signal OK if everything is alright.



Name four different water entries.

✓ ~~> 1. Giant stride

2. Controlled sated

3. Back roll entry

4. Shore entry



Describe the two emergency out-of-air ascents.




Master01 | September, 2024/2025 | Latest update

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