1.Which NEMA rating is appropriate for temporary outdoor construction power?
1.哪种 NEMA 防护等级适用于临时室外施工电源？
2.What does ＂ADA Compliant＂ mean?
2.“符合 ADA 标准”（ADA Compliant）是什么意思？
3.What is the correct glove setup for handling live wires?
3.处理带电导线时，正确的防护手套佩戴组合是什么？
4.A DOSH permit is required for:
4.在以下哪种情况下需要获得 DOSH 许可？
5.How is the 3-phase factor calculated?
5.三相系数（3-phase factor）是如何计算的？
6.Who must have DIR electrical certification?
6.谁必须持有 DIR 电气认证？
7.A house requires 37 outlets: 15 standard duplex, 9 GFCI, and 13 AFCI. The cost of duplex outlets is $4.90 for a pack of 10, GFCI outlets cost $1.28 each, and AFCI outlets cost $1.18 each. What is the t
7.某住宅需要安装 37 个插座：包括 15 个标准双联插座、9 个 GFCI 插座和 13 个 AFCI 插座。双联插座的价格为每 10 个一包，售价 4.90 美元；GFCI 插座单价 1.28 美元；AFCI 插座单价 1.18 美元。请问材料总成本是多少？
8.What warranty is required for a rebate?
8.若要申请返利（Rebate），通常需要提供哪种类型的质保？
9.Which rule applies to service-entrance conductors supplying a building?
9.哪项规则适用于向建筑物供电的进户导线（Service-entrance conductors）？
10.Cal/OSHA would not accept which method on a 5:12 slope roof?
10.对于坡度为 5:12 的屋顶，Cal/OSHA 不接受哪种防护方法？
