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English Translations » 【化工工程交流】 » Fundamentals of Processing Technology (Multiple Choice) 2018

Fundamentals of Processing Technology (Multiple Choice) 20180512

2018-05-12View Original

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This post was last edited by HP0377 on 2018-5-12 at 11:35. In the analysis of the reasons for overload in centrifugal pump motors, the incorrect conclusion is . A. Friction between the impeller and the pump casing B. The packing is too tight C. The discharge valve is closed too tightly D. Low voltage
Reply #22018-05-12
I think the answer is C. The low flow rate and low current of the valve result in a reduction, so C is the correct choice

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Translated at 2026-07-21 03:57:52

Original: https://bbs.hcbbs.com/thread-1983935-1-1.html

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