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Author Question: An E size oxygen cylinder with 2200 psig has a set flow rate of 2 L/min. It will take _____ hours ... (Read 59 times)

Kikoku

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on: Jul 16, 2018
An E size oxygen cylinder with 2200 psig has a set flow rate of 2 L/min. It will take _____ hours and _____ minutes until the gauge pressure reaches 400 psig.
 
  a. 5; 30 c. 4; 30
  b. 5; 6 d. 4; 12

Question 2

Which size cylinder is currently used for the storage of nitric oxide?
 
  a. 61.4 cubic feet c. 110 cubic feet
  b. 82 cubic feet d. 152 cubic feet


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zenzy

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Amount of time left in cylinder = (cylinder pressure  cylinder factor)/flow rate of gas (li-ters/minute). 2200  400 = 1800 psig (the amount of gas that will be used). (1800  0.28)/2 = 252 minutes/60 = 4 hours 12 minutes.

Answer to Question 2

ANS: B
Before 1997, nitric oxide was supplied in cylinders with a volume capacity of 152 cubic feet. It is now supplied in smaller cylinders (82 cubic feet) with 626 CGA valve outlets.


Kikoku

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Reply 2 on: Jul 16, 2018
Excellent

xiazhe

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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