Storage and Transportation Technology: 【Question of the Day】11-03-26【Saturday】

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This post was last edited by flute6 on 2011-3-28 at 12:25. When collecting oil into an empty tank, it is necessary to strictly control the oil inflow rate to be within ( ). Only after the oil level rises above 200 mm above the inlet pipeline and the floating roof of the tank rises by 200 mm should the oil inflow rate be increased. (A) 1m/s (B) 2m/s (C) 3m/s (D) 4m/s Note: 1) Participants receive rewards (1-5 points) to encourage more detailed explanations. An additional reward of 1-5 points will be given if the specific source of the standard is indicated. 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Replies that are not hidden will not be scored. 3) The answer will be visible immediately after responding; please do not edit your reply, as no scores will be given for further edits. P 4) Please indicate the question number when answering to avoid errors when assigning points. Please also avoid submitting answers repeatedly in a malicious manner; if this is due to an error, contact the moderators or administrators. Otherwise, points will be deducted. 5) The top 50 participants will receive prizes, while no scoring will generally be given for posts beyond the 50th. 6) The default deadline for old posts is 0:00 the next day; no scoring is generally carried out after that time. u 7) All the questions I create are formulated based on relevant standards and experience. If there are any disputes regarding the answers, please post a separate discussion thread or contact the moderator via text message. Answer: A