【Daily Question: Pump Equipment】Multiple-choice Question 2018.12.3

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This post was last edited by 3983596_FPPZ on 2018-12-3 09:50. For bk06.jpg: Rules for multiple-choice questions: 1. If the answer to each question is incorrect, active participation will be rewarded with 2 Wealth points； 2. A correct answer rewards 6 wealth points ； 3. Rewards for answers are available once per person only ； 4. Each reply allows for one management rating only ； 5. The answer and its explanation will be visible after responding ； 6. The reward is valid for 48 hours. The student has won awards again; come by here every day. The relationship between the various performance parameters of a pump exists under certain conditions, with the other parameters changing as flow rate changes. Pump manufacturers typically use characteristic curves (performance curves) to represent this relationship. (Single choice) A. Shaft power B. Head C. Flow rate D. Rotational speed. Answer: D. The performance curve shows the relationship between the other parameters and flow rate, assuming that the rotational speed remains constant