1.In Class I Div. 2 areas, which conduit is allowed?
1.在 Class I Div. 2（I 类 2 区）的危险场所中，允许使用哪种类型的导管？
2.Best tool for bending conduit over 1＂?
2.弯曲直径超过 1 英寸的导管时，最佳工具是什么？
3.What is the maximum permitted height for a disconnect handle?
3.断路开关（Disconnect）操作手柄允许的最高高度是多少？
4.Which conduit reduces vibration and noise?
4.哪种导管有助于减弱振动和噪音？
5.Standard length of rigid metal conduit:
5.刚性金属导管的标准长度是多少？
6.If an overhead service conductor is rated at 150 volts or less and is located above areas accessible only to pedestrians, what is the minimum clearance above grade?
6.如果架空进户导线额定电压为 150 伏或以下，且位于仅供行人通行的区域上方，则其距地面的最小净空高度应为多少？
7.“Readily accessible” means:
7.“易于触及”（Readily accessible）是指：
8.If a conductor rated under 750 volts passes above a swimming pool, what is the minimum vertical clearance required?
8.如果额定电压低于 750 伏的导线从游泳池上方经过，所需的最小垂直净空高度是多少？
9.A fixture can serve as a raceway if:
9.在什么情况下，灯具可以兼作导线管槽使用？
10.Largest EMT size permitted:
10.EMT 导管允许使用的最大规格是多少？
