Catalytic Coking Reformate Blending Version 20190219

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Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. Final voting stage for the 2018 “Top 10 Outstanding Members of Haichuan” – only participants via Haichuan’s official WeChat account are eligible! https://bbs.hcbbs.com/thread-2281360-1-1.html Candidates selected for the Petrochemical Division: No. 32, Green Lotus; No. 33, Treasure Pot 1; No. 34, Internet Phantom. Everyone is welcome to participate actively in voting! Thank you! ! ! https://bbs.hcbbs.com/static/image/hrline/2.gif https://bbs.hcbbs.com/static/image/hrline/3.gif 【Daily Question】Multiple-choice question: When switching from an AC-driven pump to an inverter-driven pump, start the inverter-driven pump first, open its outlet, gradually reduce the flow at the outlet of the AC-driven pump, and at the same time, the operator should increase the current supplied to the inverter-driven pump accordingly. Then close the outlet of the power-frequency pump; the operator will open the flow control valve fully to regulate the flow rate using (　　). A. Flow control valve at the outlet of the variable-frequency pump B. Motor current of the variable-frequency pump C. Motor voltage of the variable-frequency pump D. Outlet gate valve of the variable-frequency pump Answer: B. 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 published automatically after two days. “My Device, My Home – Large-scale Original Photo Sharing Event (Phase 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