[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$frv4wFt74ZExTWmqk9m1JdQ9Yawox6VbaYUGoHTX1pgs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-20 08:24:05",19596941,[8,9,10,11],"管子水平放置","管子倾斜45度角放置,流体由下向上流动","管子竖直放置,流体由上向下流动","上述三种放置方式,阻力损失一样大",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},16,"27cf35c03fad63dd51f36b2252ce3ab2","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6b602af50903a108979a4528a2748e5c.jpg","化学反应工程","31a5265d0367483f8c425117516f91c3","第2章测验题","流体在直管内的流动阻力损失,在如下哪种情形时最大______",[21,32,41,50,59,68,77,86,95,104],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],19596932,[25,26,27,28],"39.99","127.6","61.31","101","某一台离心泵真空表的读数为 -300mmHg , 当地大气压为101.3kPa, 则泵入口处的绝对压强为( )kPa","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],19596933,[36,37,38,39],"流体的物理性质是连续分布的","流体的化学性质是连续分布的","流体的运动参数在空间上是连续分布的","流体的物理性质及运动参数在空间上是连续分布的,且可以用连续函数来描述","化工原理中的连续流体是指______",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],19596934,[45,46,47,48],"830","765.69","810.23","779.91","若将62%(质量%,下同)密度为830kg·m-3的油与38%密度为710kg·m-3的油混合在一起;则混合油的密度为______kg·m-3.假设混合油为理想溶液",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],19596935,[54,55,56,57],"气体的黏度","气体的流速","气体的质量流速","气体流动的雷诺数","质量流量一定的流体在管内流动时,下列各项中与管内气体压强有关的是_______",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],19596936,[63,64,65,66],"气体、液体粘度均减小","气体、液体粘度均增大","气体粘度增大,液体粘度减小","气体粘度减小,液体粘度增大","随着温度的升高,则_______",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],19596937,[72,73,74,75],"牛顿流体的层流流动和湍流流动","理想流体的层流和湍流流动","牛顿流体的湍流流动","牛顿流体的层流流动","牛顿黏性定律适用于_______",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],19596938,[81,82,83,84],"层流更均匀一些","湍流更均匀一些","均匀程度与流动型态无关","上面三个说法均不正确","流体圆形直管内作定态层流和湍流流动时,速度分布的均匀性为_______",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],19596939,[90,91,92,93],"流体从位能高处向位能低处流动","流体从动能高处向动能低处流动","流体从总势能高处向总势能低处流动","流体从压强高处向压强低处流动","下列______可作为管内流体流动流向判据",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":30,"type":31},[],19596940,[99,100,101,102],"左低右高","左高右低","一样高","无法确定","如图所示,容器内装有水,则U形管内相界面_______.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F875c89310d073dc69a2f658c3aec75bb.jpg\">",{"answer":105,"createTime":5,"id":6,"options":106,"question":19,"source":30,"type":31},[],[8,9,10,11]]