出自:海船船员证

一般商船,其船速对相对旋回初径DT/L和旋回时间的影响是:()
A:船速越高,DT/L越大,旋回所需时间变化不大
B:船速越高,DT/L受影响不大,旋回所需时间缩短
C:船速越低,DT/L越大,旋回所需时间变化不大
D:船速越低,DT/L受影响不大,旋回所需时间缩短
有关遇险和救助问题,下列何种情况可为某船船长解除救助义务:() Ⅰ、某船船长当知悉除他本船外其它船已经被召请并正在履行应召时 Ⅱ、某船船长如得到到达遇险人员处的一船船长的通知,认为不再需要救助时 Ⅲ、某船船长认为除他本船外其它船可能已经被召请并正在履行应召时
A:Ⅰ
B:Ⅰ、Ⅱ
C:Ⅰ、Ⅱ、Ⅲ
D:Ⅰ、Ⅲ
船舶沟通与通信的障碍主要是:()。①物理障碍②人为障碍③语言障碍④地理障碍
A:①②③④
B:①②③
C:①②
D:①②④
大型船舶中央空调取暖工况需要进行加湿,其最常用的方式是()。
A:喷水加湿
B:喷蒸汽加湿
C:电热加湿
D:超声波加湿
在管理信息系统中,集装箱运输信息是能反映集装箱运输特点和状态的有用数据。
船舶营运期间,()对保证动力装置的可靠性有重要意义。人为故障比例增加就是证明。
A:管理人员业务水平
B:管理人员思想水平
C:维修性检查
D:A+B
When considering the lowest fuel system operating temperature, () are important.
A:specific gravity or relative density
B:open flash point and closed flash point values
C:higher calorific and lower calorific values
D:cloud point and pour point values
船舶进入冰区时,为安全起见:().
A:宜从冰区下风侧进入,涌浪较大或横风五级以上可以进入
B:宜从冰区上风侧进入;涌浪较大或横风五级以上不宜进入
C:宜从冰区上风侧进入;涌浪较大或横风五级以上可以进入
D:宜从冰区下风侧进入,涌浪较大或横风五级以上不宜进入
机械舵角限位器一般设在:() ①、舵叶上侧;②、下舵杆与舵柱的上部;③、舵柄两侧极限舵角位置处
A:①、②
B:②、③
C:①、③
D:①、②、③
In a twin screw ship going half-ahead , both screws turning outboard and the rudder amidships,no current or wind,the vessel will().
A:move bodily to port
B:move bodily to starboard
C:move in a zig-zag motion
D:steer a fairly straight course
月下旬到8月初,副高脊线出现第三次北跳,跨过()位置并在此停留,华北、东北进入雨季。这时长江中下游正处在副高脊线附近,进入盛夏伏旱期。
A:15°N以南
B:30°N以北
C:20°~25°N
D:20°N以南
A master would be well advised to note a sea protest if().
A:portions of his vessel's cargo were illegally impounded
B:longshoreman went on strike against the overtime
C:the vessel encountered heavy weather which might have caused some damages to her
D:a wreck of fishing boat was located on the voyage
某船夜间航行,航向002°,海图上在航线左正横附近及左前方有标注灯塔的两个小岛,查灯标表得:左正横A岛的灯塔为:Fl(2)6s10M备注栏:W060°~150°(090°)。左前方B灯塔为:Fl(2)5s13M,则该船驾驶员用罗经()。
A:可先测B后测A灯塔定位
B:可测B灯塔,无法测A灯塔
C:可测A灯塔,无法测B灯塔
D:可按任意顺序观测A、B灯塔定位
Adjustments to the compensating needle valve in a hydraulic governor should be made with the engine at ()
A:maximum power at a normal load
B:maximum power and load under normal conditions
C:half speed and normal temperature
D:normal operating temperature without a load
根据中华人民共和国船舶污染物排放标准,目前船舶漂浮物质,可在距最近陆地()以外投弃入海。
A:3海里
B:12海里
C:15海里
D:25海里
某轮在南半球遇锋面气旋,真风向由NW转SW,气压明显升高,则可断定已进入()。
A:暖锋前
B:暖区
C:冷锋后
D:暖锋后
0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the().
A:vertical position
B:horizontal position
C:boom stop angle
D:minimum radius angle
The majority of cargo gear breakdowns are a result of().
A:guy failures
B:topping lift failures
C:bending of the boom from compression
D:gooseneck failure
由于ARPA显示的()可调,因而可利用真矢量迅速估算出目标的CPA和TCPA。
墨卡托海图能保持等角投影是由于()。
A:图上任意点各个方向局部比例尺相同
B:图上各点局部比例尺相同
C:图上各点局部比例尺均等于基准比例尺
D:图上各纬线局部比例尺相同
盘香管式废气锅炉,其各盘香管进口设节流孔板的目的是()。
A:保证管中无水时不致损坏管子
B:调节废气锅炉的蒸发量
C:有利于汽水分离
D:根据吸热量不同调节各层进水量
某轮计划由9°00′.6N,85°15′.0W,航行到56°25′N,177°00′E,则该轮大圆始航向为()。
A:034°
B:056°
C:304°
D:326°
A virtual rise in the center of gravity of a ship may be caused by().
A:filling a partially filled tank
B:using fuel from a pressed fuel tank
C:emptying a partially filled tank
D:transferring pipe from the setback area to the pipe rack
An icebreaker may use the code letter “K” to remind ships of their obligation to listen continuously on their radio. This signal may be made by any of the following EXCEPT().
A:sound signal
B:light signal
C:visual signal
D:radiotelephone
墨卡托航法最可能出现较大误差是在()。
A:低纬度海区
B:中纬度海区
C:高纬度海区
D:与纬度无关
集装箱运输的基本单元是()。
A:集装箱
B:TEU
C:运输工具
D:货物
Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer().
A:into the wind
B:away in fire and smoke
C:directly to the standby boat
D:directly to the nearest land
In order to reduce the accumulation of static electricity while loading petroleum products,you should().
A:start to load at maximum pressure
B:start to load slowly
C:increase the air flow into the tank
D:use the overall method of loading only
哪些情况下PSCO可判断为低标准船?
A vessel is tender if cargo weight is().
A:concentrated high and the double bottoms empty
B:concentrated low and the double bottoms empty
C:evenly distributed vertically with the double bottoms full
D:concentrated and with the double bottoms full