Term
REVIEW:
Are we concerned about DCS in Surface Supplied Ocean Diving |
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Definition
| NO, we are only in about 20 fsw and are not in the water long enough to risk it. |
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Term
REVIEW:
How do we calculate Bottom PSI (Ambient PSI)? |
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Definition
| (Depth)x(.445)= Ambient PSI |
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Term
REVIEW:
What is the rule of thumb for Bottom PSI (Ambient) ? |
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Definition
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Term
REVIEW:
How do we calculate ATA? |
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Definition
([Depth]+[33])/33
E.x. 66+33/33=3 ATA |
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Term
REVIEW:
What is the minimum PSI required for the headgear that we use? |
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Definition
| We supply the helmets anywhere between 115-225 PSI over bottom. |
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Term
REVIEW:
What is the industry standard for figuring out the mimimum PSI required? |
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Definition
| (DEPTH)x(.445)+150= PSI over bottom |
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Term
REVIEW:
What is the safe working pressure for the hoses used in diving? |
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Definition
| The safe working pressure of diving hoses has to be at least 250 PSI |
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Term
REVIEW:
What is the formula for figuring out the the CFM needed form a compressor |
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Definition
| (4.5 CFM)x(# of divers)x(ATA)=ACFM |
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Term
REVIEW:
What does 1 line pull mean, for diver and topside? |
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Definition
Topside:Are you okay?
Diver: Yeah I am okay |
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Term
REVIEW:
What does 2 line pulls mean, for topside as well as for the diver? |
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Definition
Topside: Going down
Diver: Give me some slack |
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Term
REVIEW:
What does 3 line pulls mean, for topside and diver? |
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Definition
Topside: Standby to come up
Diver: Take up my slack |
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Term
REVIEW:
What does 4 line pulls mean, for topside as well as diver? |
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Definition
Topside: Come up
Diver: Pull me up |
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Term
REVIEW:
What are the steps that a fouled diver should take? |
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Definition
-stay calm
-inform topside
-try to un-foul yourself
-if you can't un-foul yourself tell topside to launch the standby |
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Term
REVIEW:
What steps should topside take if a diver gets fouled? |
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Definition
-onced informed they should get the standby diver ready
-if the diver can't get himself free topside will have to launch the standby diver |
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Term
REVIEW:
what should the diver do if he loses comms? |
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Definition
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Term
REVIEW:
what should the diver do in the case of loss of air |
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Definition
-The diver should switch to bail out
-then inform topside. |
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Term
REVIEW:
What should topside do in the case of loss of air |
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Definition
-topside should immediately go on to back up air
-terminate the dive |
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Term
REVIEW:
What should the diver do to prevent the build up of CO2 |
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Definition
| the diver should vent the helmet every once in awhile using the free flow |
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Term
REVIEW:
What should topside do to prevent the build up of CO2 |
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Definition
| they can tell the diver to vent using the free flow |
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Term
| What are some considerations when operation planning? |
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Definition
-Depth -Bottom conditions
-Sea State -Water Temp
-Marine life -support equipment
-location |
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