1.When wear ear protection (Cal/OSHA)?
1.何时佩戴耳部保护装置 (Cal/OSHA) ？
2.Who provides PPE?
2.个人防护装备（PPE）由谁提供？
3.Max height for two-section metal ladder?
3.两节金属梯子的最大高度是多少？
4.Stepladder top rungs to avoid:
4.直梯顶部不应站立的梯级数量为：
5.Electrical hazard protection types:
5.电气危险的防护类型包括：
6.Shoring design by engineer required at what depth?
6.工程师需要在多深的地方进行支撑设计？
7.CO2 fire extinguisher for which classes?
7.二氧化碳灭火器适用于哪类火灾？
8.Underground Service Alert contact time before excavation?
8. 挖掘前需提前多久联系地下服务警报机构？
9.Time to complete Form 5020 after serious incident?
9.严重事故后需在多久内完成 5020 表格？
10.Shoring required for trenches at what depth?
10.沟槽深度达到多少时需要支护？
