【Daily Question: Pump Equipment】True or False Question, May 6, 2019

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The last edit to this post was made by 3983596_FPPZ on 2019-5-6 at 09:44; the file bk08.jpg was also edited. Rules for answering questions and managing the system: 1. If all answers to a question are incorrect, participants will still receive a reward of 2 wealth points； 2. 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. The fundamental reason for cavitation in a pump is that its NPSHR is close to or even greater than the system’s NPSHA ； （ ） 2. High-power motors are often high-voltage motors, and this is done to reduce the operating current of the motor and thereby decrease the load on the power grid. ( ) Answer: 1, Correct ； 2. Error (reducing the current is correct, but it does not reduce the load on the power grid).