[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwm0CrVHxueb9PtdfP3UYDGAQciemOPvirRipEGY2GxY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":26,"type":27},[],"2025-12-22 11:40:21",279726864,[8,9,10,11],"mH₂O","kW","r\u002Fmin","m³\u002Fh",{"courseId":13,"courseImg":14,"courseName":15},"0f7fdcec724b48d593735be53d40d741","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa797275f8feb166dd9f70fb8e7aa4f89.jpg","水泵与水泵站","气蚀余量(Hsv)的单位是( )",[18,28,37,44,53,62,71,74,83,92],{"answer":19,"createTime":5,"id":20,"options":21,"question":25,"source":26,"type":27},[],279726858,[11,22,23,24],"L\u002Fs","t\u002Fh","Pa","叶片泵的流量单位通常不包括( )","v1",0,{"answer":29,"createTime":5,"id":30,"options":31,"question":36,"source":26,"type":27},[],279726859,[32,33,34,35],"单位体积液体的能量增值","单位重量液体的能量增值","单位时间内的能量增值","液体的提升高度","扬程的物理意义是( )",{"answer":38,"createTime":5,"id":39,"options":40,"question":43,"source":26,"type":27},[],279726860,[9,41,10,42],"m","%","轴功率的单位是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":26,"type":27},[],279726861,[48,49,50,51],"η = N\u002FNu × 100%","η = Nu\u002FN × 100%","η = N×Nu × 100%","η = (N+Nu)\u002FN × 100%","水泵效率的计算公式是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":26,"type":27},[],279726862,[57,58,59,60],"排水性能","吸水性能","功率性能","转速性能","允许吸上真空高度(Hs)反映水泵的( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":26,"type":27},[],279726863,[66,67,68,69],"吸入口直径(mm)","吐出口直径(mm)","叶轮直径(mm)","扬程(m)","型号IS100-65-315中,"100"表示( )",{"answer":72,"createTime":5,"id":6,"options":73,"question":16,"source":26,"type":27},[],[8,9,10,11],{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":26,"type":27},[],279726865,[78,79,80,81],"泵入口最大真空度为4.5m水柱","泵出口最大压力为4.5m水柱","泵的扬程为4.5m","泵的吸水高度为4.5m","某水泵铭牌标注"允许吸上真空高度4.5m",其含义是( )",{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":26,"type":27},[],279726866,[87,88,89,90],"Nu=ρgQH\u002F1000","Nu=ρgQH","Nu=QH\u002F1000","Nu=ρQH\u002F1000","有效功率的计算公式为( )",{"answer":93,"createTime":5,"id":94,"options":95,"question":100,"source":26,"type":27},[],279726867,[96,97,98,99],"叶轮外径第一次车削","叶轮外径第二次车削","泵的级数","比转数","型号20Sh-13A中,"A"表示( )"]