【Daily Question: Pump Equipment】Fill-in-the-blank and True/False Questions, June 20, 2019

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This post was last edited by 3983596_FPPZ on 2019-6-21 07:58, with the file bk14.jpg. Rules for answering questions and managing the thread: 1. If all answers to a question are incorrect, participants will be rewarded with 2 wealth points; replies that are not answers will not receive any reward； 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 one management rating only ； 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. For transporting a medium with a specific gravity of 0.8 through pipelines, with a required flow rate of 340 m3/h and an average flow velocity of 3 m/s, what should be the standard diameter of the pipeline? ( ) mm ； 2. Standard M20x1.5 threads made of the same material have a higher tensile strength than M20x2.5 threads. ( ) Answer: 1, 200 ； 2. Correct.