A "G" size oxygen cylinder with 1450 psig is being used at 5 L/min. This cylinder will be empty in approximately _ hour(s) and _ minutes

a. 1; 30 c. 11; 30
b. 2; 39 d. 15; 16

ANS: C
Amount of time left in cylinder = (cylinder pressure ? cylinder factor)/flow rate of gas (li-ters/minute). "G" size cylinder factor = 2.41. Amount of time = (1450 ? 2.41)/5 = 698.9 minutes/60 = 11 hours 39 minutes.

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A "G" size oxygen cylinder with 1450 psig is being used at 5 L/min. This cylinder will be empty in approximately _____ hour(s) and _____ minutes

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