【单选题】
人手触及带电设备外壳发生触电,这种触电称为___。
A. 接触电压触电
B. 直接接触触电
C. 跨步电压触电
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答案
A
解析
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电源进线电压为10KV的用户,一般总降压变压所将10KV电压降低到___V后,然后经低压配电线路供电到各用电场所,供给低压用电设备用电。
A. 500/400
B. 380/220
C. 380/260
【单选题】
为提高功率因数;运行中可在工厂变配电所的母线上或用电设备附近装设___,用其来补偿电感性负载过大的感性电流,减小无功损耗,提高末端用电电压。
A. 并联电容器
B. 并联电感器
C. 串联电容器
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【单选题】
Q3: Why is it considered bad luck to see a black cat crossing one’s path?___
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Q3: According to the woman, in what way will the new high-speed train be a big help to her?___
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【单选题】
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【单选题】
Q3: Why does Steven choose to have an extreme commute?___
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【单选题】
Q3: What is special about Linda’s party?___
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【单选题】
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【单选题】
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D.
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