【Daily Question: Pump Equipment】True or False Question, June 1, 2019

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bk14.jpg Rules for answering questions and management: 1. If all answers to a question are incorrect, participants who engage actively will receive 2 Wealth points; no rewards will be given for responses that are not answers； 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. Learning* and winning awards again; come by here every day. 1. Centrifugal pumps should be operated preferentially within a flow rate range where the deviation from the designed flow rate is equal in magnitude on both the positive and negative sides. ( ) 2. The size of the device’s net positive suction head depends on the pump inlet pressure, the pump’s own net positive suction head, and the operating temperature. ( ) Answer: 1, Wrong ； 2. Wrong