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
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
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
3
Q
Given the psi on an 80AL, state the the cuft of gas using addition method. (Random # table)
A
Random # table
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
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