【Daily Question: Pump Equipment】True or False Question, 1/15/2019
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This post was last edited by 3983596_FPPZ on 2019-1-15 08:42. Rules for the bg2.png true/false questions: 1. If both questions are answered incorrectly, +2 wealth for active participation; if one question is answered incorrectly and the other correctly, +4 wealth; if both questions are answered correctly, +6 wealth. 2. If only one answer is provided, unless it is clear which question’s answer it is, a correct answer earns +4 wealth points, while an incorrect answer earns +2 wealth points; in all other cases, it is counted as active participation and grants +2 wealth points. 3. Rewards for answers are available once per person only. 4. Each reply allows scoring for only one person. 5. The answer and its explanation will be visible after responding. 6. The reward is valid for 48 hours; no reward will be given after that period. Studying* and winning awards again; come by here every day. 1. When performing dynamic balancing on parts (or components), the testing speed of the dynamic balancer should be the same as the actual operating speed of those parts. ( ) 2. Among the materials used for the mating surfaces of mechanical seals, both graphite and SiC possess a certain degree of self-lubrication. ( ) Answers: False, True
1. When performing dynamic balancing on parts (or components), the testing speed of the dynamic balancer should be the same as the actual operating speed of those parts. (X) 2. Among the materials used for the end face surfaces of mechanical seal friction pairs, both graphite and SiC possess a certain degree of self-lubrication. (√)