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This post was last edited by 3983596_FPPZ on 2019-5-10 at 13:22. Rules for answering questions and managing the post: 1. If all answers to a question are incorrect, participants will receive a reward of 2 Wealth points; 2. In the answer section, a correct answer earns 5 wealth points ; A reward of 8 wealth for all correct answers ; 3. Rewards for answers are available once per person only ; 4. Each reply allows for only one management rating ; 5. The answer and explanation will be visible after responding ; 6. The reply reward is valid for 48 hours. Studying* and winning awards again; come by here every day. 1. Fill-in-the-blank question: According to the standard GB/T3216-2005 \"Rotary Positive Displacement Pumps – Hydraulic Performance Acceptance Tests for Classes 1, 2, and 3\", during the factory-induced cavitation head test, the required cavitation head at which the head drops by ( )% is taken as the pump’s cavitation head value ; 2. Multiple-choice question: When ordering pump products, it is specified that the standards specified in GB/T3215 \"Centrifugal Pumps for the Petroleum, Heavy Chemicals, and Natural Gas Industries\" shall be followed. Then, during the performance tests conducted before the pumps leave the factory, what is used as the basis for determining whether the pump’s flow rate and head meet the required standards? A、GB/T3215 B、GB3216 C、API610 D、Determined by the pump manufacturer Itself Answer: 1、3% ; 2、A
The first question is a fill-in-the-blank question, and the second one is a multiple-choice question. Pay attention to the format of the answers: lol
1. 3% 2. Standard GB3216-2005 has been revoked; the latest version is from 2016