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This post was last edited by 3983596_FPPZ on 2019-2-27 09:18. Rules for the bg2.png fill-in-the-blank questions: 1. If both blanks are answered incorrectly, +2 Wealth is given 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 given. 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 missed. Studying* and winning awards again; come by here every day. 1. The larger the mesh size of the inlet filter for centrifugal pumps, the longer the interval between inspections and cleanings of the filter ( ) ； 2. The submersible pump’s shaft bearing is a pair of angular contact ball bearings, and its installation method should be ( ). Answer: 1. The shorter (the higher the count, the smaller the mesh size, the more likely it is to get clogged, and thus the shorter the cleaning time required) ； 2. Face-to-face (long shaft length of submersible pumps, large swing, with little impact on the installation of face-to-face bearings)