The gauge reading of a 50-lb home liquid O2 system indicates that the cylinder is a third full. What is the approximate duration of flow of this system at 2 L/min?
a. 24 hr
b. 48 hr
c. 72 hr
d. 95 hr
ANS: B
See Mini Clini Computing a Liquid Oxygen System's Duration of Flow for an example of how you can compute a liquid O2 system's duration of flow.
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