首页 > 技能鉴定 > 特种作业 > 特种作业煤矿安全作业 > 煤矿井下爆破作业 > 《煤矿安全规程》规定,在采掘工作面,必须使用煤矿许用毫秒延期电雷管时,最后一段的延期时间不得超过( )

《煤矿安全规程》规定,在采掘工作面,必须使用煤矿许用毫秒延期电雷管时,最后一段的延期时间不得超过( )

A.50ms
B.80ms
C.130ms
D.150ms
查看答案
正确答案: C
答案分析:
包含此试题的试卷:
相关的试题
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
A.50ms
B.80ms
C.130ms
D.150ms
网站内容收集于网络,如有侵犯您的权益,请联系:gl@lm158.com,感谢您的支持
神奇助手题库网