【Daily Question】Catalytic Coking Reformate Blending Version 20180219
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Participation: Reward of 3~5 Wealth points； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: If the diameter of the impeller in a centrifugal pump changes, then the head is related to the impeller diameter ( ). (A) Proportional to the square (B) Proportional (C) Proportional to the cube (D) Inverse proportional. Answer: A. 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 Post on Catalytic Coking and Reforming Oil Blending for 2017: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary Post on Catalytic Coking and Reforming Oil Blending for 2017: https://bbs.hcbbs.com/thread-1811219-1-1.html
Single-choice question: If the diameter of the centrifugal pump impeller changes, then the head is proportional to the impeller diameter (A?). (A) Proportional to the square (B) Proportional (C) Proportional to the cube (D) Inverse proportional
When the diameter of the centrifugal pump impeller changes, the head is proportional to the impeller diameter (A). (A) Proportional to the square (B) Proportional (C) Proportional to the cube (D) Inverse proportional