【Daily Question No. 122】2017.05.02

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【Daily Question No. 122】May 02, 2017: In the event of a fire in areas exposed to high temperatures and hydrogen, ( ) should be used to extinguish the fire; water must not be used. The reference answer can be seen after *responding*, and points will be awarded as long as the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Steam scoring criteria: 2 Wealth points for incorrect answers; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers, while those that are correct along with a detailed explanation receive 15–20 Wealth points. Please use these criteria for scoring. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) 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 Petrochemical Sector – “Creative Ideas for Energy Saving” campaign (sponsors sought; highest returns ever) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this campaign; those interested can contact the event organizer. Petrochemical deep processing version – the event to share pictures of chemical equipment has started! Huge amounts of wealth, as well as HChuan coins, are waiting for you to claim them: http://bbs.hcbbs.com/thread-1760733-1-1.html. Notice regarding the collection of chemical engineering technical materials in the “Petroleum and Chemicals Section”: http://bbs.hcbbs.com/thread-1614796-1-1.html (Source: HChuan Chemical Forum)