【Daily Question】June 29 – Impeller of centrifugal pump (First 80 participants + 2 extra points for each correct answer; 3–8 wealth points additionally)

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This post was last edited by A Le on 2015-6-30 at 10:55. The Mechanical Section has introduced the \"One Question per Day\" feature, which aims to foster an active atmosphere for technical discussions and guide the direction of such exchanges. It also provides users with financial rewards, helping them experience various cool features. 【Daily Question】Among centrifugal pump impellers, the one that serves to balance axial thrust and improve cavitation resistance is ( ). A. Semi-open type B. Open type C. Closed type D. Double-suction type. Answer: D. Requirements and hints for answering the question: Please reply with the answer you think is correct. If you provide a detailed explanation or analysis of the question and answer, you will receive an additional reward; extra rewards will be given if your answer is correct and your explanation is thorough and accurate. Feel free to answer the questions. Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. 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 covered by this question, please reply to this post or leave a comment to let us know, and we will have a moderator assign 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 and opinions. After registration, we will rank based on the content of the posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score getting +5 charm. Other content: 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 mobile equipment for 2015