Process Design: 【One Question per Day】2010-12-（18-19）（Saturday, Sunday）
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The last edit to this post was made by Litaotao1314 on 2010-12-17 at 22:38. Multiple-choice question: Temporary filters generally use filter media with a pore size of （） pores/cm2, and the effective area of such filter media must be no less than （） times the cross-sectional area of the pipeline in use. A. 100,3 B. 100,2 C. 150,3 D. 150,2 1) Participants will definitely receive a reward ； :):victory: 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. 3) Answer: Answer: B. Refer to HG/T 20570-95
Reply 2# ldjgame b
The effective area of the filter screen in a permanent filter must be no less than 3 times the cross-sectional area of the pipeline in use.