【单选题】【消耗次数:1】
12.人工挖孔桩孔外的供电电缆线必须( )。
穿管埋地敷设
拖地敷设
架空敷设
埋地敷设
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相关题目
【多选题】 电缆线路可以( )敷设;
①  沿地面
②  埋地
③  沿围墙
④  沿电杆或支架
⑤  沿脚手架
【单选题】 电缆直接埋地敷设的深度不应小于()
①  A1.2m
②  B1m
③  C0.7m
④  D0.5m
【多选题】 常见的电缆敷设方式有()。
①  电缆构筑物敷设
②  保护管敷设
③  水下敷设
④  地下直埋敷设
【单选题】 给水管埋地敷设时,管顶的覆土埋深不得小于50mm,穿越道路部位的埋深不得小于( )。
①  600mm
②  700mm
③  800mm
④  1000mm
【单选题】 电缆敷设方式最广泛的是
①  直接埋地
②  电缆沟
③  电缆穿管
④  架空
【单选题】 VG是穿硬质塑料管敷设。( )
①  正确
②  错误
【判断题】 PVC是穿阻燃塑料管敷设。( )
①  正确
②  错误
【判断题】 电缆桥架水平敷设时的距地高度不宜低于2.5m,垂直敷设时距地高度不宜低于1.8m。
①  正确
②  错误
【判断题】 地面以下的热水管道,多采用地沟敷设方式,亦可采用直埋的无沟敷设方式。
①  正确
②  错误
【单选题】 对于埋地敷设的钢导管,埋设深度应符合设计要求,钢导管的壁厚应大于()。
①  2mm
②  1mm
③  3mm
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