【Daily Question】2015.09.25 (2 wealth points for replying, plus 3–8 additional wealth points for a correct answer)
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This post was last edited by WQC on 2015-9-26 at 21:13. The Mechanical Section has introduced the \"One Question per Day\" feature, which aims to foster an active atmosphere for technical discussions and guide the direction of such exchanges. It also provides users with financial rewards, helping them experience various cool features. Single-choice question: When a centrifugal pump is in operation and the flow rate increases, the current ( ). A. Increase ； B. Reduce ； C, unchanged ； D. It cannot be determined. Answer: A. Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. Charisma Reward: If you post a topic in this section within two days to provide a detailed explanation or discussion of the knowledge points related to this question, please reply or leave a comment in this post to let us know, and we will have a moderator award you charisma points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank based on the content of the posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm.
A. Increase! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
The answer is A, Increase
A. Increase； . . . . . . . . . . . . .
Choose C: the flow rate increases within the normal range while the current remains unchanged
A. It increases. According to the performance curve of centrifugal pumps, the greater the flow rate, the higher the power consumption; since the voltage of the motor remains constant, the current also increases.
When a centrifugal pump is in operation, as the flow rate increases, the current ( ). C, unchanged ；
When a centrifugal pump is in operation, as the flow rate increases, the current (A) also increases.
It should be impossible to determine, choose D
A-,---------------------------------------------