B.错误
正确答案:A
31.红外灯、紫外灯不得安装在木柜或纸箱中使用。()
A.正确
B.错误
正确答案:A
32.实验室的电源总闸没有必要每天离开时都关闭,只要关闭常用电气的电源即可。()
A.正确
B.错误
正确答案:B
33.离开实验室前应检查门、窗、水龙头是否关好,通风设备、饮水设施、计算机、空调等是否已切断电源。()
A.正确
B.错误
正确答案:A
34.实验室内出现火情逃到室外走廊时,要尽量做到随手关门,这样一来可阻挡火势随人运动而迅速蔓延,增加逃生的有效时间。
正确(正确答案)
错误
35.二氧化碳灭火器使用不当,可能会造成冻伤。()
A.正确
B.错误
正确答案:A
36.It is OK to roam hallways and offices while wearing disposable gloves as long as you know they are clean.()
A.正确
B.错误
正确答案:B
37.You are not required to carry hazardous chemicals in a secondary containment device if only traveling a short distance such as to a lab across the hall.()
A.正确
B.错误
正确答案:B
38.Possible routes of exposure to toxic chemicals include eyes,skin(absorption),inhalation and ingestion.()
A.正确
B.错误
正确答案:A
39.Solid chemicals that are spilled on the skin can usually be brushed off with no adverse consequences.()
A.正确
B.错误
正确答案:B
40.Safety regulations require that contact lenses NOT be worn in the laboratory()
A.正确
B.错误