Instruments: [Daily Question] March 18, 2011

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This post was last edited by cnooczhouyx on 2011-3-23 08:40. [Daily Question] Question from March 18, 2011: 1. Which of the following could possibly be a copper-core control cable used in instruments? A. 6.0 mm2 B. 0.1 mm2 C. 1.5 mm2 D. 10 mm2 2. When manufacturing protective sleeves for instrument cables and wires, the angle of bending of these protective bends should not be less than ( ). A. 450 B. 900 C. 1350 D. 600 Note: 1) The top 50 participants will definitely receive a reward; in principle, no additional points are given for those beyond 50. Among them, the first 20 who answer correctly receive a prize of value 5, while those from 21 to 50 receive a participation award. Those who answer 3 questions correctly and 2 incorrectly receive… ； Points can be awarded additionally for detailed analysis, in-depth discussion, and discretion ； 2) Please hide your replies; the method for doing this is at http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. (No rewards will be given for any replies that are not hidden. ) 3) Posts that expire will be closed, and the answers will become visible after the post is closed ； Thank you all for your participation ； 【Daily Question】Answer for March 18, 2011: 1. C 2. B.