Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?（）<br>A:clean the flame scanner photocell window<br>B:Inspect and clean all solenoid valves<br>C:lift the safety valves by hand<br>D:Inspect for oil or water leaks

Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?（）
A:clean the flame scanner photocell window
B:Inspect and clean all solenoid valves
C:lift the safety valves by hand
D:Inspect for oil or water leaks

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:【10252701】个 (题库试题定时更新)