【Daily Question No. 140】2017.05.20

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This post was last edited by liuquan1100 on 2017-5-20 at 11:52. [Daily Question No. 140] As of 2017.05.20, what is the safe voltage for working inside a container? A. 6 B. 12 C. 24 D. 36. The reference answer can be seen after* replying*; points will be awarded if the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B.12 Scoring Criteria: 2 Wealth points for incorrect attempts; *incomplete* answers result in 3–8 points. 10 Wealth points are awarded for correct answers accompanied by detailed explanations; if additional *answers* are provided, 15–20 Wealth points are given. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming. Points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html