【多选题】【消耗次数:1】
触电事故的主要原因包括()。
维修不善
电气设备、线路安装不合格
缺乏安全用电常识
违反操作规程
参考答案:
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相关题目
【多选题】 电气设备发生火灾的主要原因有()。
①  A.电路短路
②  B.电路过载
③  C.电路接触电阻增大
④  D.电路发生电火花和电弧
⑤  E.操作失误
【多选题】 生产事故主要是指在建筑产品的( )过程中,操作人员违反有关施工操作规程等而直接导致的安全事故。
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②  生产
③  维修
④  使用
⑤  拆除
【多选题】 电气线路发生火灾的主要原因是什么()
①  A线间短路
②  B保险器安装不合适
③  C过负荷
④  D接点或连接处接触不良电阻过大,导线发热
【判断题】 电气设备着火、触电,应首先切断电源,用水灭电气火灾。( )
①  正确
②  错误
【单选题】 使用电气设备时,由于维护不及时,当( )进入时,可导致短路事故。
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②  强光辐射
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【多选题】 项目的主要工种应有相应的安全技术操作规程,一般包括( )工种:
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④  木作、水暖、油漆
⑤  特种作业由各企业根据实际情况自行编制目录补充
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【单选题】 安装单位应当按照建筑起重机械()及安全操作规程组织安装、拆卸作业。
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④  相关条例
【判断题】 施工现场应制定施工机械安全技术操作规程,建立设备安全技术档案。
①  正确
②  错误
【判断题】 安装、巡检、维修或拆除临时用电设备和线路,必须由电工完成,并应有人监护。
①  正确
②  错误
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【单选题】 — May I stop here? —No, you_____.
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【单选题】 He did me a ____ turn by lending me ten pounds.
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③  fine
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【单选题】 The farmer said all their hopes _____ the support of the local government.
①  decided on
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③  based on
④  founded on
【单选题】 The millions of calculations involved, ____ by hand, would have lost all practical value by the time they were finished.
①  had they been done
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①  output
②  surplus
③  production
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【单选题】 Most importantly, such an experience helps ____ a heightened sensitivity to other cultures and will bring about a greater appreciation of one’s own culture as well.
①  coach
②  forsake
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【单选题】 She didn’ t come to the party last Sunday._____, she must have made the party more exciting.
①  If she came
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