【Daily Question: Pump Equipment】True or False Question, 1.3.2019

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This post was last edited by 3983596_FPPZ on 2019-1-4 07:57. Rules for the bg2.png quiz: 1. Those who get both questions wrong receive a reward of 2 Wealth as a token of their active participation; 2 points of Wealth are given for getting one question right and the other wrong, while 4 points of Wealth are awarded for getting both questions correct ； 2. Rewards for answers are available once per person only ； 3. Each reply allows for only one management rating ； 4. The answer and its explanation will be visible after responding ； 5. The reward is valid for 48 hours. Studying* and winning awards again; come by here every day. 1. There are three most common reasons for excessive pump vibration: the pump operating too far away from its optimal operating point or being prone to cavitation, poor fixation of the base and pipeline supports, and incorrect alignment of the couplings. ( ) 2. Similar to high-speed pumps, when starting a multi-stage pump, the outlet valve should be slightly opened to prevent excessive heating due to vigorous mixing inside the pump, as well as to allow any gas formed by the vaporization of the fluid to escape. ( ) Answers: 1. Correct, 2. Correct