如图6-2-10所示,一倒置U形管,上部为油,其密度ρcal=800kg/m3,用来测定水管中的A点流速uA,若读数Δh=200mm,则该点流速uA为()...

作者: tihaiku 人气: - 评论: 0
问题 如图6-2-10所示,一倒置U形管,上部为油,其密度ρcal=800kg/m3,用来测定水管中的A点流速uA,若读数Δh=200mm,则该点流速uA为()m/s。
选项 A. 0.885 B. 1.980 C. 1.770 D. 2.000
答案 A
解析 对U型管右侧水油接触而进行受力分析有:

相关内容:如图,6-2-10所示,形管,密度,测定,水管,流速,读数,该点

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