![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[判断题]
Q/SY02552-2018《钻井井控技术规范》中规定:远程控制台上各手柄的位置要求为:环形在中位,闸板在工作位置,控制剪切闸板的手柄应安装防止误操作的限位装置,控制全封闸板的手柄应安装防止误操作的防护罩()
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
是
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
是
A.30mg/m3(20ppm)
B.45mg/m3(30ppm)
C.75mg/m3(50ppm)
D.150mg/m3(100ppm)
A.2
B.3
C.6
D.5
A.30 mg/m3(20ppm
B.45 mg/m3(30ppm
C.150 mg/m3(100ppm
D.1500mg/m3(1000ppm)
A.100
B.300
C.500
D.1000
A.钻井
B.录井
C.钻井液
D.泥浆不落地