配套习题- 安全用电原则 -【青果学院】

1/5单选题

难度：

1.家庭电路中的保险丝熔断了，以下原因中不可能的是（　　）

A	家庭中用电器的总功率过大
B	电灯开关中的两根导线相碰
C	保险丝的规格不合适，熔断电流太小
D	插头中的两根导线相碰

正确答案：Qg==

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

2/5单选题

难度：

2.下列三个现象：①灯头里的两个线头相碰；②插座中的两线头相碰；③照明电路的开关里两线头相碰. 其中可能引起保险丝熔断的是（　　）

A	①②③
B	①②
C	①③
D	②③

正确答案：Qg==

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

3/5单选题

难度：

3.如图所示，多孔插座冒烟的主要原因是由于电路中（　　）青果学院

A	总电量太大
B	总电阻太大
C	总电流太大
D	总电压太高

正确答案：Qw==

5o+S5bqn5YaS54Of55qE5Y6f5Zug55S15rWB6L+H5aSn77yM5b2T5ZCM5LiA5Liq5o+S5bqn5LiK5o6l6L6D5aSa55qE55So55S15Zmo5pe277yM5oC75Yqf546H6L+H5aSn77yM55S15rWB5bCx5aSn77yM5L2/5a+857q/5Y+R54Ot6ICM5YaS54Of77yM5Y+m5LiA5Liq55S15rWB6L+H5aSn55qE5Y6f5Zug5piv5Y+R55Sf5LqG55+t6LevLiA8YnI+5pWF6YCJQy4g

4/5单选题

难度：

4.下列做法，符合安全用电原则的是（　　）

A	靠近高压带电体
B	家用电器起火时，先灭火，后切断电源
C	家庭电路中，控制灯泡的开关装在零线上
D	有金属外壳的家用电器使用三脚插头

正确答案：RA==

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

5/5单选题

难度：

5.关于家庭电路的下列做法，不符合安全用电常识的是（　　）

A	发现有人触电，应首先切断电源
B	检修电路故障时，应尽量在通电情况下作业
C	有金属外壳的用电器，金属外壳一定要接地
D	为了保证电路安全，家里尽量不要同时使用多个大功率电器

正确答案：Qg==

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