试题与答案

一般情况,运行混油控制流速1/s时较为经济,A~B站间距80km,管内径444.2m

题型:单项选择题

题目:

一般情况,运行混油控制流速1/s时较为经济,A~B站间距80km,管内径444.2mm,则A站流量应控制为()m3/h。

A、500

B、570

C、480

D、550

答案:

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