【Daily Question】Catalytic Coking Reformate Blending Version 20171006

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Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: Medium pressure has little impact on balanced mechanical seals; therefore, balanced mechanical seals are particularly suitable for (　　) centrifugal pumps. A. High head B. Low head C. Various heads D. Medium head Answer: A. Take a moment to participate; our ultimate goal is for everyone to acquire knowledge. http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. Petrochemical Zone – “Creative Ideas for Energy Savings” event (the second phase is in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html 2017: “My Technical Upgrades” in the coal chemical industry http://bbs.hcbbs.com/thread-1786290-1-1.html [Daily Question] Catalyst-based coking and reformation – product blending version, 2017 summary post http://bbs.hcbbs.com/thread-1811219-1-1.html