【Daily Question: Pump Equipment】True or False Question, 5/30/2019

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bk14.jpg Rules for answering questions and management: 1. If all answers to a question are incorrect, participants will receive 2 wealth points as a reward; 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 only one management rating ； 5. The answer and explanation will be visible after responding ； 6. The reply reward is valid for 48 hours. Again winning awards in studies – come by here every day. 1. The vibration of pump connection pipelines is of low frequency, and it is commonly measured and evaluated using the amplitude in millimeters ； ( ) 2. At the beginning of use, it is normal for mechanical seals to have an excessive leakage rate, as a running-in period is required; once this period is over, the leakage will be within normal limits. ( ) Answer: 1. Correct ； 2. Error ；