【Daily Question: Pump Equipment】Fill-in-the-blank question, February 20, 2019

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This post was last edited by foam_ZPTK on 2019-2-20 at 10:15. Rules for the fill-in-the-blank questions in bg2.png: 1. If both blanks are answered incorrectly, +2 wealth for active participation; if one blank is answered incorrectly and the other correctly, +5 wealth; if both blanks are answered correctly, +8 wealth. 2. If only one answer is provided, unless it is clear which question’s answer it is, a correct answer earns +5 wealth points, while an incorrect answer earns +2 wealth points; in all other cases, it counts as active participation and grants +2 wealth points. 3. Rewards for answers are available once per person only. 4. Each reply allows scoring for only one person. 5. The answer and its explanation will be visible after responding. 6. The reward is valid for 48 hours; no reward will be given after that period. Studying* and winning awards again; come by here every day. According to the law of similarity, when a centrifugal pump is operated at a reduced frequency such that its speed is halved compared to the original speed, the pump’s flow rate becomes ( ) of the original flow rate, while its head becomes ( ) of the original head. Answer: 1/2, 1/4