【Daily Question: Pump Equipment】True or False Question, April 9, 2019

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This post was last edited by 3983596_FPPZ on 2019-4-9 08:44, with the file bk12.jpg. Rules for multiple-choice questions: 1. If both answers are incorrect, +2 wealth for active participation; if one answer is correct and the other is incorrect, +5 wealth; if both answers are correct, +8 wealth. 2. If only one answer is provided, unless it is clear which question’s answer it is, a correct answer earns +5 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. To perform a dynamic balance test on the rotor, the rotational speed used in the formula to calculate the allowable residual imbalance must be the actual rotational speed of the dynamic balancing machine. ( ) 2. For parts that cannot be used properly even after being installed in a rotated or reversed position, and for which such issues are not easily detectable, error-proof installation mechanisms should be provided. ( ) Answer: 1. Incorrect ； 2. Correct.