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Author Question: The gas above liquid oxygen is maintained: a. between its freezing point and its critical ... (Read 55 times)

eruditmonkey@yahoo.com

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on: Jul 16, 2018
The gas above liquid oxygen is maintained:
 
  a. between its freezing point and its critical temperature.
  b. between its boiling point and its critical temperature.
  c. at its critical pressure.
  d. at its boiling point.

Question 2

Which of the following statements is (are) true with regard to liquid bulk systems?
 
  1. Liquefied oxygen occupies a fraction of the space required for the storage of gaseous oxygen.
  2. The CGA regulates the construction of liquid oxygen systems.
  3. A bulk oxygen system contains more than 40,000 ft of oxygen.
  4. The working pressure of a liquid bulk oxygen system is 50 psig.
  a. 2 c. 1 and 3
  b. 3 and 4 d. 1 and 4


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katkat_flores

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

ANS: B
The pressure-release valve allows some of the gas on top of the liquid to escape if the contents are warmed too much. This release of gas allows the gas within the container to expand, thus lowering the temperature. This maintains the gas under pressure between its boiling point and its critical temperature so that the majority of the reservoir's contents will be maintained in the liquid state.

Answer to Question 2

ANS: D


eruditmonkey@yahoo.com

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Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

tkempin

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Reply 3 on: Yesterday
Gracias!

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