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This post was last edited by 3983596_FPPZ on 2019-2-26 08:26. Rules for the bg2.png fill-in-the-blank questions: 1. If both blanks are answered incorrectly, +2 Wealth is awarded for active participation; if one blank is answered incorrectly and the other correctly, +5 Wealth is given; if both blanks are answered correctly, +8 Wealth is awarded. 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 for responding is valid within 48 hours; no reward will be given if the deadline is passed. Studying* and winning awards again; come by here every day. 1. For diaphragm couplings with the same diameter, the more bolt holes there are, the higher the precision required for aligning the two shafts must be ( ) ； 2. Other conditions remaining constant, the greater the weight of the rotor, the greater the allowable imbalance weight for rotor dynamic balancing ( ). Answer: 1. Higher (since the more holes there are, the smaller the distance between them, which reduces the deformation capacity; therefore, a higher alignment precision is required). 2. Larger (according to the formula for dynamic balance, the allowable residual imbalance amount = eccentricity x rotor weight/rotor radius, it can be seen that the allowable imbalance amount is proportional to the rotor’s weight)