试题与答案

离心水泵启动后出口逆止门打不开的象征不正确的是()。A、电流小,出口门前压力高;B、

题型:多项选择题

题目:

离心水泵启动后出口逆止门打不开的象征不正确的是()。

A、电流小,出口门前压力高;

B、电流大,出口门前压力高;

C、电流小,出口门前压力低;

D、电流大,出口门前压力低。

答案:

参考答案:A, B, D

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