Storage and Transportation Technology: 【Question of the Day】11-03-08 [Tuesday] Wishing all female colleagues a happy holiday

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The last edit to this post was made by flute6 on 2011-3-28 at 12:34. For liquid ammonia, which is an intermediate product in ammonia and urea production plants, when storage is carried out at low temperature and low pressure, the design pressure for the ammonia tanks should be ( ) Mpag. A.5.0 B.2.0 C. 1.0 D.0.02 Note: 1) Participants receive a reward, encouraging more explanations. 6 q- @4 \5 P9 J% g/ a. }+ ` 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. 1 N" m% g7 M! ^8 i! ^ 3) The answer will be available immediately after responding. 4) Rewards will be given to the top 50 participants. A financial reward will also be given if the specific source of the standard is provided. 5) Please indicate the question number when answering to avoid errors when scoring. Please also avoid submitting answers multiple times maliciously; if it is due to an error, contact the moderators or site administrators, otherwise points will be deducted. Answer: C. Option A selects a value that is too large; B represents the design pressure for storage at normal temperatures, while D refers to the pressure required for storage at low temperatures under normal pressure. Therefore, the correct choice is C