Gas Management Flashcards

0
Q

Calculate the unit rate cuft/1psi for both a 80AL and 40AL tank.

A

For 80AL-80/3000=.026cuft/1psi

For 40AL-40/3000=.013cuft/1psi

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1
Q

How do you convert depth (ft) to atmospheres (ATA)?

A
  • Depth in feet/33ft + 1= _____ ATA
  • Multiply depth by 3 then /100 + 1
  • multiply depth by .03 +1
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2
Q

Given an 80AL and 40AL cylinder , state the cuft equivalents for 1,10,100,1000 psi.

A

80AL: 1=.026; 10=.26; 100=2.6, 1000=26
40AL: 1=.013; 10=.13, 100=1.3; 1000=13

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3
Q

Given the psi on an 80AL, state the the cuft of gas using addition method. (Random # table)

A

Random # table

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4
Q

Given common psi tank fills use ratio/% method to estimate cuft of gas in 80AL and 40AL cylinders

A
3000=1.0=80=40
2700=.9=72=36
2400=..83(.8)=64=32
2100=.7=56=28
1800=.6=48=24
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5
Q

State the 1st dive NDLs for depths 30-130

A

30-205| 40-130| 50-70| 60-50| 70-40| 80-30| 90-25| 100-20| 110-15| 120-10| 130-5

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