Before welding is permitted on a fuel tank, it must be certified or declared （）<br>A:safe for becoming rounded<br>B:safe for hot work<br>C:not safe for personnel<br>D:not safe for hot work

Before welding is permitted on a fuel tank, it must be certified or declared （）
A:safe for becoming rounded
B:safe for hot work
C:not safe for personnel
D:not safe for hot work

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:【10249282】个 (题库试题定时更新)