如图64-3所示,两水箱水位恒定,水而高差H=10m,管道直径d=10cm,总长度L=20m,沿程阻力系数λ=0.042,已知所有的转弯、阀门、进、出口局...

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问题 如图64-3所示,两水箱水位恒定,水而高差H=10m,管道直径d=10cm,总长度L=20m,沿程阻力系数λ=0.042,已知所有的转弯、阀门、进、出口局部水头损失合计为:hi=3.2m。则通过管道的平均流速为( )
选项 A. 3.98 B. 4.83 C. 2.73 D. 15.8
答案 A
解析

相关内容:如图,64-3所示,水箱,水位,高差,管道,直径,长度,沿程,阻力,系数,阀门,出口局

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