【Daily Question】Hydrogenation Sector 2016 03 29

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This post was last edited by Guan Gongyu on 2016-3-29 at 10:36. [Daily Question] Hydrogenation sector, 2016-03-29: When a centrifugal pump is in standby mode and it is found to be running in reverse, the main reason for this is (), and it should be addressed promptly. A. High outlet pressure B. High inlet liquid level C. Internal leakage in the outlet valve D. Internal leakage in the inlet valve C@Guan Gong Yu @sgwj @lyf0506 @dlutyj @stone2000 @tiyiss @guoliqun Promotion of petrochemical-related activities: 1. Competitive posting call for ideas on segmenting content areas: http://bbs.hcbbs.com/thread-1568416-1-1.html (Source: Haichuan Chemical Industry Forum) 2. [Petrochemical Weekly] Issue No. 9, dated 3-12-2016 (Summary of recent petrochemical activities): http://bbs.hcbbs.com/thread-1568615-1-1.html (Source: Haichuan Chemical Industry Forum) 3. “Haichuan Gratitude Season” – Summary of activities in the Petrochemical Section: http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Industry Forum) 4. Summary of professional “basic knowledge” posts in the Petrochemical Section (Supported by the main forum; amazing prizes await you): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum)