【Daily Question No. 145】December 16, 2017

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【Daily Question No. 145】December 16, 2017: The most common method of adjusting a centrifugal pump is ( ). A. Changing the opening degree of the valve in the suction pipeline. B. Changing the opening degree of the valve in the discharge pipeline. C. Installing a return line to adjust the volume of circulation. D. Turning the impeller of the centrifugal pump. **Answer**: B. For management purposes, if you need to access content from a few days ago, please go through the summary post below. 2017 Q&A Summary Thread (updates have begun) https://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) https://bbs.hcbbs.com/thread-1657794-1-1.html 2017 Daily Image Summary Thread https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160 2017 LNG Version Daily Question Catalog https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162 2016 Q&A Summary Thread (updates completed) https://bbs.hcbbs.com/thread-1597792-1-1.html