题目内容
(请给出正确答案)
[单选题]
普通验电笔测量电压范围在()之间。
A.60~100V
B.60~200V
C.60~400V
D.60~500V
答案
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A.60~100V
B.60~200V
C.60~400V
D.60~500V
第1题
A.0.1~0.6V
B.0.6~3.5V
C.1.0~3.9V
D.1.2~4.2V
第3题
A.120.037-120.059,0.04-0.09
B.120.020-120.059,0.04-0.09
C.120.037-120.059,0.01-0.04
D.120.020-120.059,0.01-0.04
第4题
A.不破坏系统线电压的对称性
B.故障相的对地电压下降,范围在大于零小于线电压之间
C.非故障相对地电压升高到3倍相电压
D.故障相的接地电容电流等于正常是一相对地电容电流的3倍,其方向超前故障相正常电压