[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVRzWb8N47kg9OArIpvOKtp9LLK36sSGqbKJ2rcpeJwY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2023-05-20 08:24:05",19596932,[8,9,10,11],"39.99","127.6","61.31","101",{"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","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",[21,26,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],19596933,[30,31,32,33],"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":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],19596934,[39,40,41,42],"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":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],19596935,[48,49,50,51],"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":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],19596936,[57,58,59,60],"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":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],19596937,[66,67,68,69],"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":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],19596938,[75,76,77,78],"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":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],19596939,[84,85,86,87],"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":90,"createTime":5,"id":91,"options":92,"question":97,"source":24,"type":25},[],19596940,[93,94,95,96],"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":99,"createTime":5,"id":100,"options":101,"question":106,"source":24,"type":25},[],19596941,[102,103,104,105],"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","流体在直管内的流动阻力损失,在如下哪种情形时最大______"]