1.Which substance is most toxic? 1.哪种物质毒性最强？

A. TSP A. TSP

B. Pipe-joint compound B. 管道接头密封剂

C. PVC cement C. PVC胶水

D. Concrete form oil D. 混凝土模板油

2.What hazards do safety shoes protect against? 2.安全鞋可以预防哪些危险？

A. Electrocution A. 触电

B. Nail penetration B. 钉子穿透

C. Impact C. 撞击

D. All of the above D. 以上所有

3.Are leather-soled shoes recommended for roof work? 3.屋顶作业是否推荐穿皮底鞋？

A. No they are never recommended A. 不，绝不推荐

B. Yes if soles are stiff B. 是的，如果鞋底坚硬

C. Yes with flat foot placement C. 是的，采用平脚站立时

D. Yes when walking parallel to the slope D. 是的，当平行于斜坡行走时

4.Which is least likely a crane safety rule? 4.下列哪项最不可能是起重机安全规则？

A. Hand signals posted visibly A. 清晰张贴手势信号

B. Crane operator must respond to all signalers B. 起重机操作员必须响应所有信号员

C. Signalers in well-lit areas C. 信号员需在光线充足区域

D. Only qualified persons give signals D. 仅合格人员可发出信号

5.What PPE is required during demolition? 5.拆除过程中需要哪些个人防护装备？

A. Surgical mask A. 医用口罩

B. Earplugs B. 耳塞

C. Hardhat C. 安全帽

D. All of the above D. 以上皆是

6.What gloves are appropriate for welding? 6.焊接时适合戴什么手套？

A. Heavy-duty gloves A. 重型手套

B. Fingerless gloves B. 露指手套

C. Rubber gloves C. 橡胶手套

D. Tight-fitting gloves D. 紧身手套

7.What is critical for a 6'-deep trench workers enter? 7.工人进入 6 英尺深的沟槽时，关键安全措施是什么？

A. Trench wall bracing A. 沟槽壁支撑

B. Barricades B. 路障

C. Depth signage C. 深度标识牌

D. Fencing the deepest area D. 对最深区域设置围栏

8.Which material is unsuitable for a skylight? 8.哪种材料不适合做天窗？

A. Tempered glass A. 钢化玻璃

B. Laminated glass B. 夹层玻璃

C. Rigid plastic C. 硬质塑料

D. Annealed glass D. 退火玻璃

9.What action is required upon finding burial artifacts while digging? 9.挖掘时发现随葬品需要做什么？

A. Dig around them quickly A. 快速挖掘周围

B. Cover and continue elsewhere B. 覆盖并继续前往其他地方

C. Stop work and contact the County Coroner C. 停止工作并联系县验尸官

D. Restrict work to 10 feet around the site D. 将工作范围限制在场地周围 10 英尺内

10.What do rubber-soled shoes protect against? 10.橡胶底鞋可以预防什么？

A. Impact A. 撞击

B. Electrocution B. 触电

C. Slipping C. 滑倒

D. All of the above D. 以上皆是

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