When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）. -题库考试答案搜索网

When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.

单选题

2022-02-23 21:50

A、to their final position with the winch operating at slow speed
B、to the bar stop，and then hand cranked to their final position
C、until just before they make contact with the limit switch，and then hand cranked to their final position
D、to the embarkation deck，and then hand cranked to their final positio

查看答案

正确答案

试题解析

标签：甲板与船体保养

感兴趣题目

Mechanical gearing of deck machinery such as the windlass or boat hoists should（）.

When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.

When transferring survivors from an enclosed lifeboat to a rescue vessel，personnel on board the boat should（）.

To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?（）

When a pilot is on board to pilot the vessel the Letter（）must be hoisted.

船体甲板和船底的弯曲应力方向（），二者的弯曲应力值（）。

A （）can give power to hoist or lower cargo.

甲板驳需要配备履带吊、打桩机等机械时，履带吊等机械底盘与船体必须分开，严禁整体固结。

The boat was sailing to the north when a terrible strom（）.

When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.

船舶分为上层建筑和主船体组成，而上层建筑指：（）（1）首楼；（2）尾楼；（3）桥楼；（4）甲板室；（5）船底结构；（6）甲板结构。

船体结构的设计与建造应满足（）。 Ⅰ具有足够的强度、刚度和稳定性； Ⅱ构件本身应有良好的连续性； Ⅲ施工工艺合理； Ⅳ充分考虑整个船体的美观； Ⅴ便于维修保养。