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[判断题]
当现场硫化氢浓度达到30mg£¯m3<£¯sup>(20ppm)时,按应急程序现场的非作业人员撤入安全区。()
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A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.75mg/m3(50ppm)
D.150mg/m3(100ppm)
A.绿牌
B.黄牌
C.红牌
D.蓝牌
A.立即安排专人观察风向、风速以便确定受侵害的危险区
B.切断危险区的不防爆电器的电源
C.安排专人佩戴正压式空气呼吸器到危险区检查泄漏点
D.非作业人员撤入安全区
E.协助地方政府撤离居、牧民
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)