1.When backing up a tandem-axle truck on site, the driver should:
1.在施工现场倒车时，双轴卡车司机应采取什么措施？
2.When cables or conductors are directly buried beneath streets, roads, alleys, driveways, or parking areas, what burial depth is required?
2.当电缆或导线直接埋设在街道、公路、小巷、车道或停车场下方时，要求的埋深是多少？
3.A fully glass 20-foot wall requires three outlets. What should be done?
3.一面全玻璃结构的20英尺长墙面需要安装三个插座。此时应采取什么措施？
4.What raceway is most suitable for high-voltage wiring in a tunnel?
4.在隧道内进行高压布线时，哪种导管（raceway）最为适用？
5.What commonly causes photovoltaic raceways to become wavy or distorted?
5.什么因素通常会导致光伏系统的导管出现波浪状变形或扭曲？
6.In Class I Division 2 locations, which conduit is acceptable above ground?
6.在I类2区（Class I Division 2）场所中，哪种导管允许在地面以上使用？
7.What property must be identical for parallel conductors?
7.对于并联导线，哪项属性必须完全一致？
8.A 20-amp receptacle is allowed a maximum cord-and-plug-connected load of:
8.一个20安培的插座，其允许连接的插头式负载（cord-and-plug-connected load）最大不得超过多少安培？
9.What should be done when installing conduit in refrigerated areas?
9.在冷藏区域安装导管时，应采取什么措施？
10.When is it acceptable to interconnect smoke detectors?
10.在何种情况下，允许将烟雾探测器相互互联？
