【Daily Question No. 137】May 17, 2017

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【Daily Question No. 137】May 17, 2017: If the motor of a pump catches fire, which method should be used to extinguish it? A. Steam B. Dry powder C. Chemical foam. The reference answer can be seen after responding; points will be awarded as long as the key points are correct. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B rating criteria: 2 Wealth points for incorrect attempts; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations, while answers that are correct but lack sufficient details earn 15–20 Wealth points. Please use these criteria for scoring. Note: If there are editing records after answering, only points will be awarded to those who participated. 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