[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fb6WJj4CG_Y4vRJWbhIWH_7hNV46h4oRVQPoV8ZDnohM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-12-14 21:44:38",114179210,[8,9,10,11],"2m, 200mm","2m, 300mm","2.2m, 200mm","2.2m, 300mm",{"courseId":13,"courseImg":14,"courseName":15},"a27acb95416138191d761f2b5f00fa0b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1bdefc36c003ceefacedfa8934b6c25d.jpg","综合布线技术","安装金属桥架时,线缆桥架底部应高于地面( )及以上,顶部距建筑物楼板不宜小于( )",[18,29,32,41,50,59,68,77,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],114179209,[22,23,24,25],"2 个,10m","2 个,20m","2 个,30m","3 个,20m","每根暗管的转弯角不得多于( ),并不应有S弯出现,有转弯的管段长度超过( )时,应设置管线过线盒装置","v1",0,{"answer":30,"createTime":5,"id":6,"options":31,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":27,"type":28},[],114179211,[36,37,38,39],"10~20m","20~40m","30~50m","40~60m","为保持良好的电气连接,电缆桥架装置应可靠接地,长距离桥架每隔( )接地一次",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":27,"type":28},[],114179212,[45,46,47,48],"4倍,6倍","4倍,8倍","6倍,8倍","6倍,10倍","线管和线槽转弯的曲半径不应小于所穿入线规的最小允许弯曲半径,线管不应小于该管外径的( ),线槽直角弯处最小弯曲半径不应小于槽内最粗线缆外径的( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":27,"type":28},[],114179214,[54,55,56,57],"3 mm","4 mm","5 mm","6 mm","机柜安装完工后,按规定垂直偏差度不应大于( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":27,"type":28},[],114179217,[63,64,65,66],"4","6","8","10","电缆转弯时,非屏蔽4对对绞电缆的弯曲半径应至少为电缆外径的( )倍",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],114179219,[72,73,74,75],"25%-30%","30%-50%","40% -50%","50%-60%","预埋线槽宜采用金属线槽,预埋或密封线槽布线线缆时,截面利用率应为( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":84,"source":27,"type":28},[],114179222,[81,82,74,83],"25% -30%","30% - 50%","50% -60%","暗管布放4对对绞电缆或4芯及以下光缆时,管道的截面利用率应为( )",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":27,"type":28},[],114179225,[89,90,91,92],"3-6 cm","10-20 cm","0.5-2 m","3-5 m","线缆应有余量以适应终接、检测和变更,电信间(配线间)对绞电缆预留长度宜为( )",{"answer":95,"createTime":96,"id":97,"options":98,"question":103,"source":27,"type":28},[],"2023-12-14 21:44:39",114179226,[99,100,101,102],"100米","200米","500米","1500米","根据布线标准.建筑物内主干光缆的长度要小于( )"]