水泵调速运行时,调速泵的转速由变为时,其流量、扬程与转速之间的关系符合比例律,其关系式为( ) -题库考试答案搜索网

水泵调速运行时,调速泵的转速由变为时,其流量、扬程与转速之间的关系符合比例律,其关系式为( )

单选题

2021-07-17 23:48

A、(H<sub>1</sub>/H<sub>2</sub>)=(Q<sub>1</sub>/Q<sub>2</sub>)<sup>2</sup>=(n<sub>1</sub>/n<sub>2</sub>)
B、(H<sub>1</sub>/H<sub>2</sub>)=(Q<sub>1</sub>/Q<sub>2</sub>)=(n<sub>1</sub>/n<sub>2</sub>)<sup>2</sup>
C、(H<sub>1</sub>/H<sub>2</sub>)=(Q<sub>1</sub>/Q<sub>2</sub>)<sup> 2</sup>=(n<sub>1</sub>/n<sub>2</sub>)<sup> 2</sup>
D、(H<sub>1</sub>/H<sub>2</sub>) =(Q<sub>1</sub>/Q<sub>2</sub>) =(n<sub>1</sub>/n<sub>2</sub>)

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正确答案

C

试题解析

标签：水利水电工程专升本水工建筑物 2019级毕业清考（考试分）

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