移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

单选题

The correct procedure for giving an auxiliary boiler a bottom blow, is to begin()

发布日期:2021-03-22

The correct procedure for giving an auxiliary boil...
A

when the boiler has been secured long enough for most solids to settle

B

when the boiler has been cooled to ambient temperature

C

only after raising the water level to within 0~5 inch of the high water cutout only

D

after bypassing the low pressure

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

水路交通运输技能考试

海船船员考试

去刷题
热门试题热门资讯 相关试题

暂无相关推荐~