试题与答案

某车间想利用一台离心泵,把储液槽液面压强101.2K(A)293K的清水送到水塔内,

题型:单项选择题

题目:

某车间想利用一台离心泵,把储液槽液面压强101.2K(A)293K的清水送到水塔内,其流量和扬程都符合要求,泵铭牌标出的允许汽蚀余量[△h]=3.2m。设吸入管路中的全部压头损失为1.5m,已知293K时水的相对密度为0.998,饱和蒸气压为2.33KPa,则该泵的允许安装高度为()。

A.6.9m

B.8.6m

C.5.4m

D.10.1m

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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