[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-jjzHyWmtbpZrNtXegjxq278Txa_-CvCUq4ImJXY8Gc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-04-22 20:50:53",139719151,[8,9,10,11],"Q增大,Δh增大","Q增大,Δh减小","Q增大,Δh不变","Q增大,Δh先增大后减小",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},36,"9756a8143dab3fff7b7b91b2f2b39390","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c1e48361b00f3ee2086f4e259ed792b.jpg","化工总控工","work_34522233","实验四","离心泵汽蚀余量Δh与流量Q的关系为( )",[21,32,41,50,59,68,77,86,95,104],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],139719142,[25,26,27,28],"铸铁管","钢管","铅管","水泥管","用"φ外径mm×壁厚mm"来表示规格的是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],139719143,[36,37,38,39],"Q增大,N增大","Q增大,N先增大后减小","Q增大,N减小","Q增大,N先减小后增大","离心泵的轴功率N和流量Q的关系为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],139719144,[45,46,47,48],"功率最大时的扬程","最大流量时的扬程","泵的最大量程","效率最高时的扬程","离心泵铭牌上标明的扬程是( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],139719145,[54,55,56,57],"真空度","表压力","相对压力","附加压力","压力表上的读数表示被测流体的绝对压力比大气压力高出的数值,称为( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],139719146,[63,64,65,66],"安装高度","扬程","吸上高度","升杨高度","泵将液体由低处送到高处的高度差叫做泵的( )",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],139719147,[72,73,74,75],"2","3","4","5","当流量、管长和管子的摩擦系数等不变时,管路阻力近似的与管径的( )次方成反比",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],139719148,[81,82,83,84],"各种管线成列平行,尽量走直线","平行管路垂直排列时,冷的在上,热的在下","并列管路上的管件和阀门应集中安装","一般采用暗线安装","符合化工管路布置原则的是( )",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],139719149,[90,91,92,93],"单级单吸清水泵","多级清水泵","耐腐蚀泵","油泵","离心泵中的Y型泵为( )",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":30,"type":31},[],139719150,[99,100,101,102],"在流量为零时最大","在压头最大时最大","在流量为零时最小","在工作点处为最小","离心泵的轴功率是( )",{"answer":105,"createTime":5,"id":6,"options":106,"question":19,"source":30,"type":31},[],[8,9,10,11]]