Preventer bars are fitted on lifeboat

Preventer bars are fitted on lifeboat releasing hooks to prevent（）.

Athe falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
Boperation of the release lever until the boat is waterborne
Cthe falls from rehooking after they have been released
Daccidental unhooking when the falls become slack

参考答案

参考解析：

分类：理货与计量作业题库

The preventer guy，as used on a conventional yard and stay rig，（）.Ais rigged at an angle of 70°to 90°from the guy it assistsBtakes t...

2、Frapping lines are fitted to lifeboat

Frapping lines are fitted to lifeboat davits to（）.Asecure the lifeboat in the davits when in the stowed positionBbring the lifeboat close alon...

3、Every lifeboat which is fitted with a

Every lifeboat which is fitted with a fixed two-way VHF radiotelephone apparatus with（）which is separately mounted shall be provided with arran...

4、Each open lifeboat carried on a vessel

Each open lifeboat carried on a vessel on an international voyage must have（）.Ahand-propelling gearBa davit span with at least 2 lifelinesCa mast and a sailDa motor

5、Every lifeboat which is fitted with a

Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.AHFBVHFCMFDMF/HF

6、Bilge keels are fitted on ships to（）.

Bilge keels are fitted on ships to（）.Aassist in drydock alignmentBimprove the vessel's stabilityCprotect the vessel from slamming against piersDreduce the rolling of the vessel

编辑推荐

列举5种园林建筑并简述其布置要点？..

特发性生长激素缺乏症的主要原因（）..

吸烟属于（）..

开立国内信用证需基于以下贸易背景审查（）..

二级耐火等级建筑内疏散门或安全出口不少于2个的观众厅、展览.....

壁厚对塑件的影响？..