【Daily Question】Sulfur Technical Edition, August 2, 2017

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To increase the popularity of this section, a daily quiz campaign has been launched. The purpose of this campaign is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, you can also easily bring wealth home :) . Participation: Prize of 5 Wealth ； Correct answer: Reward of 10 wealth points ； Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 5-8 wealth points. This post is valid for 48 hours. Multiple-choice question: The ultimate target for the airtightness pressure of the device is (　　). A. Reaching the designed operating pressure B. The set pressure of the safety valve C. Below the designed operating pressure D. The test pressure of the equipment. Answer: A. Petrochemical area – Innovative ideas for energy savings: “Creative Thinking” campaign (the second phase is currently in progress). http://bbs.hcbbs.com/thread-1666758-1-1.html. 2017 Coal Chemical Industry – “My Technical Upgrades”. http://bbs.hcbbs.com/thread-1786290-1-1.html