[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAfbv6cGPB3yDQwWqEvqmfyHtDRkwFLlFEYGIBMcU4g8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-10-31 15:50:50",163923073,[8,9,10,11],"1,2,3,4,5","1, 3, 5","2, 3, 4; (","2,4.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1a95b744f683ac025c83ebce4af11ac0.png\">",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},11,"ad24e42376174bb3af22aae222d5d3a9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","水力学","work_38391413","水动力学","在应用恒定总流的能量方程时,可选用图中的( )断面,作为计算断面",[21,32,41,50,53,62,67,76,85,92],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],163923070,[25,26,27,28],"下降","上升","不变","不一定","液体流动时,其测压管水头线一定是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],163923071,[36,37,38,39],"3m\u002Fs","4m\u002Fs","8m\u002Fs","9m\u002Fs","变直径管,直径d1=400mm, d2=200mm, 流速v1=2m\u002Fs, 则v2为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],163923072,[45,46,47,48],"管嘴里形成真空","损失小","水利条件好","总损失小","管嘴的出流量比孔口的出流量大是因为 ( )",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],163923074,[57,58,59,60],"恒定流动","均匀流动","层流运动","运动要素只与一个坐标有关的流动","水力学中的一维流动是指( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":30,"type":31},[],163923075,[25,26,27,28],"黏性液体流动时,其总水头线一定是( )",{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":30,"type":31},[],163923076,[71,72,73,74],"文丘里计","毕托管","测压管","薄壁堰","测量水槽中某点水流流量的仪器有( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":30,"type":31},[],163923077,[80,81,82,83],"大","小","一样","不确定","在相同的条件下,即上游水头H0相等,薄壁小孔口直径与管嘴直径相等,管嘴的出流量比孔口出流量较( )",{"answer":86,"createTime":5,"id":87,"options":88,"question":91,"source":30,"type":31},[],163923078,[36,39,89,90],"4 m\u002Fs","12m\u002Fs","变直径管,直径d1=300mm, d2=150mm, 流速v1=1m\u002Fs, 则v2为( )",{"answer":93,"createTime":5,"id":94,"options":95,"question":100,"source":30,"type":31},[],163923079,[96,97,98,99],"L=(3~4)d,H0 &gt;9m","L=(3~4)d,H0 &lt;9m","L&gt;(3~4)",",H0 &gt;9m ;D. L&lt;(3~4)d,H0 &lt;9m","圆柱形外管嘴正常工作的条件是( )"]