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有过水断面面积、糙率、底坡均相同的四条矩形断面棱柱形长直渠道，其

底宽b与均匀流水深h。有以下几种情况，则通过流量最大的渠道是(  )。

单选题
2021-07-19 05:58
A、<span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><em>b</em></span><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">1</span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">= <chmetcnv w:st="on" unitname="m" sourcevalue="4" hasspace="True" negative="False" numbertype="1" tcsc="0" />4.0 m</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">，</span><i style="mso-bidi-font-style: normal"><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">h</span></i><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">01 </span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">= <chmetcnv w:st="on" unitname="m" sourcevalue="1" hasspace="False" negative="False" numbertype="1" tcsc="0" />1.0m<span style="mso-tab-count: 1"></span></span>
B、<span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><em>b</em></span><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">2</span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"> = <chmetcnv w:st="on" unitname="m" sourcevalue="2" hasspace="False" negative="False" numbertype="1" tcsc="0" />2.0m</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">，</span><i style="mso-bidi-font-style: normal"><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">h</span></i><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">02</span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"> = <chmetcnv w:st="on" unitname="m" sourcevalue="2" hasspace="False" negative="False" numbertype="1" tcsc="0" />2.0m</span>
C、<span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><em>b</em></span><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">3</span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">= <chmetcnv w:st="on" unitname="m" sourcevalue="2.8" hasspace="True" negative="False" numbertype="1" tcsc="0" />2.8 m</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">，</span><i style="mso-bidi-font-style: normal"><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">h</span></i><sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">03</span></sub><span lang="EN-US" style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"> = <chmetcnv w:st="on" unitname="m" sourcevalue="1.4" hasspace="False" negative="False" numbertype="1" tcsc="0" />1.4m</span>
D、<span lang="EN-US" style="mso-bidi-font-size: 10.5pt">b</span><sub><span lang="EN-US" style="mso-bidi-font-size: 10.5pt">4</span></sub><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"> = <chmetcnv w:st="on" unitname="m" sourcevalue="2.6" hasspace="False" negative="False" numbertype="1" tcsc="0" />2.6m</span><span>，h</span><sub><span lang="EN-US" style="mso-bidi-font-size: 10.5pt">04</span></sub><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"> = <chmetcnv w:st="on" unitname="m" sourcevalue="1.5" hasspace="False" negative="False" numbertype="1" tcsc="0" />1.5m</span><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt"></span><p></p><p></p>
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正确答案
C
试题解析
C
标签： 给排水工程技术 高起专 水泵风机与站房 2019级第三学期期末考试 给排水科学与工程 专升本 2019级毕业清考（考试分） 清考
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