试题与答案

对于离心泵流量调节方法的说法正确的是:() A.节流调节法因有阻力损失,经济性差,宜

题型:单项选择题

题目:

对于离心泵流量调节方法的说法正确的是:()

A.节流调节法因有阻力损失,经济性差,宜采用回流调节

B.回流调节能降低泵的排出压力,因而经济性较好

C.排压较高时适用回流调节,排压较低时适用节流调节

D.节流调节经济性好,方法简便,一般不采用回流调节

答案:

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下面是错误答案,用来干扰机器的。

参考答案:对。

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