[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fP5dscCksoPXjNff1CbAPNBI8sNiCchrYDqq7zA2h5-M":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":104,"createTime":26},216647483,"v1","颗粒的沉降速度不是指( )",[8,9,10,11],"等速运动段的颗粒降落的速度","加速运动段任一时刻颗粒的降落速度","加速运动段结束时颗粒的降落速度","净重力(重力减去浮力)与流体阻力平衡时颗粒的降落速度",[],[14,27,36,46,56,66,70,80,90,98],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},216647478,"颗粒作自由沉降时,Re0在( )区时,颗粒的形状系数对沉降速度的影响最大",[18,19,20,21],"斯托克斯定律区","阿仑区","牛顿定律区","不确定",[],[],0,null,"2025-09-15T17:24:06+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":34,"related":35,"type":24,"origin":25,"createTime":26},216647479,"当固体微粒在大气中沉降是层流区域时,以( )的大小对沉降速度的影响最为显著",[31,32,33],"颗粒密度","空气粘度","颗粒直径",[],[],{"id":37,"source":5,"question":38,"options":39,"answer":44,"related":45,"type":24,"origin":25,"createTime":26},216647480,"含尘气体在降尘室内除尘(尘粒均为球形,且沉降在斯托克斯区),理论上能使流量为V的气体中颗粒直径\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F23479\">≥50μm的颗粒100%除去, 现要求将同样气量中的\u003Cimg src=\"https:\u002F\u002Fmooc1-1.chaoxing.com\u002Fananas\u002Flatex\u002Fp\u002F23479\">≥35μm的颗粒100%除去,则降尘室的底面积应为原来的( )倍",[40,41,42,43],"1.02","1.42","2.04","0.7",[],[],{"id":47,"source":5,"question":48,"options":49,"answer":54,"related":55,"type":24,"origin":25,"createTime":26},216647481,"含尘气体在降尘室内按斯托克斯定律进行沉降.理论上能完全除去30μm的粒子,现气体处理量增大1倍,则该降尘室理论上能完全除去的最小粒径为( )",[50,51,52,53],"2×30μm","1\u002F2×30μm","30μm","\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F509\">×30μm",[],[],{"id":57,"source":5,"question":58,"options":59,"answer":64,"related":65,"type":24,"origin":25,"createTime":26},216647482,"多层降尘室是根据( )原理而设计的",[60,61,62,63],"含尘气体处理量与降尘室的层数无关","含尘气体处理量与降尘室的高度无关","含尘气体处理量与降尘室的直径无关","含尘气体处理量与降尘室的大小无关",[],[],{"id":4,"source":5,"question":6,"options":67,"answer":68,"related":69,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":71,"source":5,"question":72,"options":73,"answer":78,"related":79,"type":24,"origin":25,"createTime":26},216647484,"在长为l,高为H的降尘室中,颗粒的沉降速度为\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F123862\">,气体通过降尘室的水平流速为u,则颗粒能在降尘室内分离的条件是( )",[74,75,76,77],"\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F4790203\">","\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F4790205\">","\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F4790208\">","\u003Cimg src=\"\u002Fananas\u002Flatex\u002Fp\u002F286463\">",[],[],{"id":81,"source":5,"question":82,"options":83,"answer":88,"related":89,"type":24,"origin":25,"createTime":26},216647485,"为提高旋风分离器的效率,当气体处理量较大时,应采用( )",[84,85,86,87],"几个小直径的分离器并联","大直径的分离器","几个小直径的分离器串联","更大风机",[],[],{"id":91,"source":5,"question":92,"options":93,"answer":94,"related":95,"type":96,"origin":25,"createTime":97},216647857,"根据沉降操作的作用力,沉降过程有____________和____________两种.",[],[],[],2,"2025-09-15T17:28:20+08:00",{"id":99,"source":5,"question":100,"options":101,"answer":102,"related":103,"type":96,"origin":25,"createTime":97},216647858,"若沉降室高度降低,则沉降时间 ;生产能力 .(下降,增加,不变)",[],[],[],{"courseName":105,"courseImg":106,"workName":107,"workId":108,"count":109,"courseId":110},"化工原理（第2版）","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8b6f3e2ccea55260046c033c16303bc2.jpg","沉降","6371b378979844138e037e977a0c1ed0",14,"5f027d3203cc74399dd988f80e40b0b3"]