1.What sets plug fuses apart from cartridge fuses?
1.插入式熔断器与筒式熔断器的主要区别是什么?
2.Indication of an open circuit?
2.断路的指示?
3.Where are GFCls installed?
3.GFCI 安装在何处?
4.What does a wattmeter measure?
4.瓦特计测量的是?
5.Exposed live wires above 600V in a building: what to do?
5.建筑物内 600V 以上的裸露带电导线应如何处理?
6.Acceptable bathroom wiring method?
6.可接受的浴室布线方式是?
7.When to upgrade an electrical service panel?
7.何时需要升级电气配电板?
8.“Available fault current” means:
8.“可用故障电流”是指:
9.A receptacle tester checks:
9. 插座测试仪检查:
10.Which three components make up a basic transformer?
10.一个简单变压器由哪三部分组成?