Storage and Transportation Technology: [One Question per Day] 11-05-07, 08 [Saturday, Sunday]

Thread Content

The requirement for leakage from the packing seal after maintenance of the pump is: no more than 20 drops per minute for light oils, and no more than ( ) drops per minute for heavy oils. (A) 2 (B) 5 (C) 10 (D) 20 Note: 1) Participants receive rewards (1-5 points) to encourage more 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 score will be given if edits are made. P 4) Please indicate the question number when answering to avoid errors when assigning scores. Please also avoid submitting answers multiple times 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 be given for posts beyond the 50th. 6) The default deadline for old posts is 0:00 the next day; no scoring is generally conducted 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. C