Pipe and valve knowledge: [Question of the Day] 2011-02-28

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This post was last edited by superkiller0305 on 2011-2-28 at 17:25. Multiple-choice question: For pipes transporting highly toxic fluids or elbows with a design pressure of ≥10 MPa, the allowable deviation of the pipe end center from the axis shall not exceed ( )； When the length L of the straight pipe is greater than (), its deviation shall not exceed 5 mm. A、1.5mm/m, 3m B、2.0mm/m, 2m C、2.5mm/m, 3.5m D、3.0mm/m, 5.0m 1) All participants receive a reward (5 points for correct answer, 3 points for incorrect answer, 1 point for answers that are not hidden; additional points may be given to those who provide detailed discussions) ； 2) Please hide your replies; the method to do this is: http://bbs.hcbbs.com/thread-492556-1-1.html ； 3) Please do not edit after replying ； 4) This question will be closed the next day or when a new daily question is released ； 5) Answer: A, see GB 50235