【Daily Question】July 7 – Centrifugal pump flow rate issue (First 80 participants get +2 points; an additional 3–8 points for correct answers...)
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This post was last edited by whthday on 2015-7-10 at 13:22. The Mechanical Section has introduced the \"Question of the Day\" feature, which not only helps to foster an active atmosphere for technical discussions and guide the direction of such exchanges but also provides users with financial rewards, enabling them to experience various cool features. 【Daily Question】 The centrifugal pump originally had a flow rate of qV when transporting water. Now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are the same as those of water and the pipeline conditions remain unchanged; what will be the flow rate? A. Increase ； B. Decrease ； C. Unchanged ； D. It cannot be determined. Answer: C. Requirements and hints for answering the question: Reply with the answer you believe to be correct; if you provide a detailed explanation or analysis of the question or answer, an additional reward will be given. You will receive extra compensation if your answer is correct and your explanation is thorough and accurate. Feel free to answer the questions. Please note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. Please do not submit answers repeatedly. As a reward for your effort, if you post a topic in this section within two days that provides a detailed explanation of the knowledge points related to this question, please reply or leave a comment in this post to inform us, and we will have a moderator award you + Charm. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights. After registration, we will rank participants based on the content of their posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. Call for weekly topics and daily questions (prizes for participation) [Mechanical Section] Collection of essential knowledge [Seeking manufacturer sponsorship] (long-term campaign) [Rewards for recommending valuable content] Summary of daily questions and answers related to mechanical equipment for 2015
Answer C: When the density of the liquid being pumped changes, among the performance parameters of the pump, head, flow rate, and efficiency remain unchanged; only the shaft power changes
The flow rate of the centrifugal pump when transporting water was originally qV; now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are identical to those of water and the pipeline conditions remain unchanged. The flow rate is (C). A. Increase ； B. Decrease ； C. Unchanged ； D. It cannot be determined.
Well, the pumping capacity isn’t affected by density. Shaft power is affected by density
【Daily Question】 The centrifugal pump originally delivered water at a flow rate of qV. Now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are the same as those of water and the pipeline conditions remain unchanged; what is the flow rate? (C) A. Increase ； B. Decrease ； C. Unchanged ； D. It cannot be determined.
The flow rate of the centrifugal pump when transporting water was originally qV; now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are identical to those of water and the pipeline conditions remain unchanged. The flow rate is (C).
The flow rate of the centrifugal pump when transporting water was qV; now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are identical to those of water and the pipeline conditions remain unchanged, the flow rate ( ). A. Increase ； B. Decrease ； C. Unchanged ； D. It cannot be determined. b
The flow rate of the centrifugal pump when transporting water was originally qV; now it is used to transport an aqueous solution with a density 1.2 times that of water, assuming its other physical properties are identical to those of water and the pipeline conditions remain unchanged. The flow rate is (C).