【Daily Question】Utilities - Water Supply and Drainage - 20190105
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This post was last edited by hesonchang214 on 2019-1-10 at 16:59. In pipeline design, the average economic flow velocity can be used to determine the pipe diameter; generally, larger pipe diameters allow for a higher average economic flow velocity. For example, when DN≥400 mm, the average economic flow velocity can be set at (). a、0.9——1.2m/s b、0.9——1.4m/s c、1.2——1.4m/s d、1.0——1.2m/s Answer: b
b、0.9——1.4m/s
b、0.9——1.4m/s
b、0.9——1.4m/s
b、0.9——1.4m/s
b、0.9——1.4m/s