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Participation: Prize 1 Wealth; Correct answer: Reward of 3 wealth points ; Note: This post is valid for 48 hours. https://bbs.hcbbs.com/static/image/hrline/2.gif https://bbs.hcbbs.com/static/image/hrline/3.gif 【Daily Question】Multiple-choice question: When the static pressure of the catalyst in the material leg exceeds ( ), the flap valve opens automatically. A. The pressure drop in the cyclone; B. The static pressure of the bed material above the flap valve; C. The pressure required to open the flap valve; D. The sum of the pressure drop in the cyclone, the static pressure of the bed material above the flap valve, and the pressure required to open the flap valve. Answer: D. Make a little progress every day. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. “My Device, My Home – Large-scale Original Photo Sharing Event (Part 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【Q&A】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1811219-1-1.html
When the static pressure of the catalyst in the leg exceeds ( ), the flap valve opens automatically. D. The sum of the pressure drop in the cyclone, the static pressure of the bed above the flap valve, and the pressure required to open the flap valve