Which one is not the normal operation for boiler shutdown?（）<br>A:Carry out soot blowing if permissible<br>B:Change fuel supply to diesel oil<br>C:Close steam stop valves on boiler when pressure is reduced<br>D:Drain boiler empty when it has cooled down

Which one is not the normal operation for boiler shutdown?（）
A:Carry out soot blowing if permissible
B:Change fuel supply to diesel oil
C:Close steam stop valves on boiler when pressure is reduced
D:Drain boiler empty when it has cooled down

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10252937】个 (题库试题定时更新)