【Daily Question】June 4: Requirements for mechanical seals in centrifugal pump testing (First 80 participants + 2 correct answers earn an additional 3–8 points)

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This post was last edited by A Le on 2015-6-5 10:14. The Machinery 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】Judgment: During the hydrostatic test of a centrifugal pump, mechanical seals should not be used, whereas they should be employed during all operation tests or performance tests. ( ) Answer: Correct; the question is taken directly from clause 8.3.1.3 of API 610-11th edition -2009. During the hydrostatic test, the pressure is 1.5 times the design pressure, and the use of mechanical seals can cause them to be damaged. Requirements and hints for answering questions: Please 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. Extra rewards will be awarded 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. 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 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 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 earning +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 mechanical equipment for 2015