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This post was last edited by 3983596_FPPZ on 2019-6-19 07:55. Rules for answering questions and managing the post: 1. If all answers to a question are incorrect, participants who engage actively will be rewarded with 2 Wealth points; replies that are not answers will not receive any reward; 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. Studying* and winning awards again; come by here every day. 1. The connection hole for the vibration sensing sensor of the rolling bearing on the bearing housing is not connected to the interior of the bearing housing ( ) ; 2. For a given self-priming pump, when the specific gravity of the medium increases, its self-priming height remains essentially unchanged ( ). Answer: 1, Correct ; 2. Error (the previous answer was incorrect; correction: the suction height is a characteristic related to work done based on atmospheric pressure, and it represents a form of utilization of atmospheric pressure energy; as the specific gravity increases, the suction height decreases).
1. The connection hole for the vibration sensing sensor of the rolling bearing on the bearing housing is not connected to the interior cavity of the bearing housing (X); 2. For a given self-priming pump, when the specific gravity of the medium increases, its self-priming height remains essentially unchanged (DUI)