【多选题】
高压架空线路对环境的影响一般包括以下那几个方面___。
A. 工频电场
B. 工频磁场
C. 无线电干扰
D. 可听噪声
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答案
ABCD
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工作票负责人(监护人)的安全职责有___。
A. 正确、安全地组织工作
B. 确认工作票所列安全措施正确、完备，符合现场实际条件，必要时予以补充
C. 工作前向工作班全体成员告知危险点，督促、监护工作班成员执行现场安全措施和技术措施
D. 工作后确认工作必要性和安全性
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架空线的振动是怎样形成的?___
A. 架空线受到均匀的微风作用时，会在架空线背后形成一个以一定频率变化的风力涡流
B. 当风力涡流对架空线冲击力的频率与架空线固有的自振频率相等或接近时，会使架空线在竖直平面内因共振而引起振动加剧，架空线的振动随之出现
C. 因水平档距过大而引起架空线振动
D. 因架空线过轻而引起架空线振动
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简述导线截面的基本选择和校验方法。___
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B. 按经济电流密度选择导线截面
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E. 按电晕条件校验导线截面
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紧线时耐张(转角)塔均需打临时拉线，临时拉线的要求是什么?___
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输变电工程环境影响评价的主要法律依据是什么___。
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输电线路杆塔基础的常见的有原状土基础、___、斜柱式基础、联合式基础、重力式基础、预制式基础、桩基础等。
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B. 岩石基础
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送电线路无线电干扰主要来自：导线的电晕放电、绝缘子的表面污秽产生的泄流、缺陷绝缘子间隙放电火花、___、新架设导线的毛刺放电等等。
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【多选题】
停电检修或进行其他工作时，关于接地的作用说法正确的是___。
A. 防止设备突然来电
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【多选题】
为何拌制混凝土尽可能选用较粗的砂？___
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申请新装用电、临时用电、增加用电容量、变更用电和终止用电，均应当到当地供电企业办理手续，并按照国家有关规定交付费用，供电企业没有不予供电的合理理由的，应当供电。
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The parents were quite happy to[ ]our suggestion because had taked their most important concernsinto consideration.
