【Daily Question】July 28 – Questions on centrifugal pump knowledge (2 points for the first 80 participants; an additional 3–8 points for correct answers)...
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The Machinery Section has introduced the 【Daily Question】 feature, which not only fosters an active atmosphere for technical exchanges and guides the direction of such exchanges, but also provides users with financial rewards to help them experience various cool features. 【Daily Question】Which of the following statements is correct? ( ) A. A centrifugal pump can discharge liquid because, as the pump shaft drives the impeller to rotate, it throws the liquid upward. B. The function of the guide vane in a centrifugal pump is to change the direction of fluid flow. C. When a centrifugal pump is operating, external mechanical energy is converted into the mechanical energy of the liquid inside the pump, with part of the kinetic energy being converted into static pressure energy. D. Packing seals are cheaper than mechanical seals and offer better performance. 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, you will receive an additional reward; if your answer is correct and your explanation is accurate, you will get extra compensation. 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 related to this question, please reply or leave a comment in this post to let us know; we will then ask a moderator to grant you + charm points. 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
The correct statement is (C). A. A centrifugal pump can discharge liquid because, as the pump shaft drives the impeller to rotate, it throws the liquid upward. B. The function of the guide vane in a centrifugal pump is to change the direction of fluid flow. C. When a centrifugal pump is operating, external mechanical energy is converted into mechanical energy of the liquid inside the pump, with part of the kinetic energy being transformed into static pressure energy. D. Packing seals are cheaper than mechanical seals and offer better performance
Which of the following statements is correct? ( ) A. A centrifugal pump can discharge liquid because when the pump shaft drives the impeller to rotate, it throws the liquid upward
The correct statement is (C)
C I think this explanation is quite reasonable
The correct statement is (C). A. A centrifugal pump can discharge liquid because, as the pump shaft drives the impeller to rotate, it throws the liquid upward. B. The function of the guide vane in a centrifugal pump is to change the direction of fluid flow. C. When a centrifugal pump is operating, external mechanical energy is converted into mechanical energy of the liquid inside the pump, with part of the kinetic energy being transformed into static pressure energy. D. Packing seals are cheaper than mechanical seals and offer better performance
Which of the following statements is correct? (C. When a centrifugal pump is in operation, the external mechanical energy is converted into the mechanical energy of the liquid inside the pump, with part of this kinetic energy being transformed into static pressure energy.)
My answer is C: converted into static pressure energy
【Daily Question】 Which of the following statements is correct? (c) A. A centrifugal pump can discharge liquid because, as the pump shaft drives the impeller to rotate, it throws the liquid upward. B. The function of the guide vane in a centrifugal pump is to change the direction of fluid flow. C. When a centrifugal pump is operating, external mechanical energy is converted into mechanical energy of the liquid inside the pump, with part of the kinetic energy being transformed into static pressure energy. D. Packing seals are cheaper than mechanical seals and offer better performance