进户线有几种?
第十一章家庭用电

Quiz
•
Other
•
9th Grade
•
Easy
Sonnie Wong
Used 49+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
火线与地面之间的电压为?
220V
230V
420V
430V
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以下哪一个情况会造成测电笔发光?
使用测电笔时,手不接触尾部的金属体
当测插座左下角的插孔时
当中线断路时,测电笔插入插座左下角的插孔
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电路中电流过大是什么原因造成的?
电路过载和短路时
用电器漏电
灯泡的钨丝熔断
用太粗的电线
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
家庭电路中的保险丝通常选用( )。
铜丝
铝丝
铅锑合金
银丝
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在家庭电路中,下列哪一种情况不会造成触电事故?
触摸没有安装地线的用电器
人一只手接触火线,另一只接触中线
人站在地上,一只手接触中线
人站在地上,一只手接触火线
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电路的保护装置是?
熔断器
电能表
开关
插座
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