出自:海船船员证

在吹气式液位传感器中,设平衡室压力为P1,导管压力为P2,变送器输出压力为P0,当液位升高时,这三者之间的关系是()。
A:P2>P1,P0增大
B:P2<P1,P0减小
C:P2=P1,P0增大
D:P2=P1,P0减小
Information on search and rescue procedures will be found in the().
A:World Port Index
B:International Code of Signals
C:Sailing Directions
D:Merchant Ship Search and Rescue Manual (MERSAR)
对地航速是船舶在()情况下的对地航速。 Ⅰ.无风流;Ⅱ.有风无流;Ⅲ.有流无风;Ⅳ.有风流。
A:Ⅰ~Ⅳ
B:Ⅰ,Ⅱ
C:Ⅰ,Ⅱ,Ⅳ
D:Ⅰ
I regret()you of the accident.
A:inform
B:informing
C:to inform
D:will inform
对于右旋螺旋桨,沉深横向力方向为:().
A:正车时推尾向左;倒车时推尾向左
B:正车时推尾向左;倒车时推尾向右
C:正车时推尾向右;倒车时推尾向右
D:正车时推尾向右;倒车时推尾向左
“钢质海船入级规范”规定:并联运行的交流发电机应设有延时3s~10s动作的逆功率保护。逆功率值按原动机的类型不同可整定为: ①原动机为柴油机,发电机额定功率为(); ②原动机为涡轮机,发电机额定功率为可实现()。
A:1%~5%;8%一10%
B:1%~5%;2%一8%
C:8%~15%;2%一8%
D:8%~15%;8%一10%
在能见度不良水域中或其附近时,不论白天还是夜间,失去控制的船舶、操纵能力受到限制的船舶,限于吃水的船舶、帆船、从事捕鱼的船舶以及从事拖带或顶推他船的船舶,应以每次不超过()的间隔连续鸣放3声,即一长声继以二短声。
A:1min
B:2min
C:3min
D:4min
电气设备失火时,妥当抢救的方法是()。
A:切断火区电源,用水,泡沫灭火器施救
B:切断火区电源,用二氧化碳,1211等灭火器具灭火
C:用四氯化碳式压缩空气灭火
A tug would NOT assist a ship to steer if the tug is made up to the large vessel().
A:by a tow line ahead of the vessel
B:forward on either bow of the vessel
C:approximately amidships of the vessel
D:on the vessel's quarter
Of a kind of liquid is used to cool the diesel engine, it is invariably called ()
A:lubricant
B:coolant
C:combustion product
D:second refrigerant
船舶在进行下列哪项作业外,都必须向有关部门报告批准后方能进行?()
A:在港内使用焚烧炉
B:船舶加装淡水
C:船舶、码头、设施使用化学消油剂
D:在港区排放压载水
一般情况下,在船舶顶流拖首离泊时选择的离泊角度,流急时约为()左右,流缓时约为()左右。
A:15°,30°
B:10°,20°
C:20°,40°
D:25°,50°
何谓空压机的“级差式活塞”?有何应用意义?
At night while the ship is tied up to the dock,a fire breaks out in a cargo hatch. After sounding the alarm,what should the person on watch do?()
A:Begin fighting the fire immediately
B:Await further orders from the Master
C:Let go the lines to let the vessel drift to an anchorage
D:Send a person to summon the shore authorities
You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to().
A:continue ahead at slow speed
B:continue ahead at half speed
C:stop your engines
D:back down on your engines
船舶初稳性高度越高,排水量越(),旋回半径越()时,则旋回运动的倾角越大。
A:小/大
B:大/小
C:小/小
D:大/大
In which voyage, between two points, is the rhumb line distance not approximately the same as the great circle distance?().
A:The two points are in low latitudes in the same hemisphere
B:The two points are in high latitudes in the same hemisphere
C:The two points are near the equator, but in different hemispheres
D:One point is near the equator, one point is in a high latitude, and both are near the 180th meridian
铸钢艏柱的特点是()
A:强度好
B:冲击韧性好
C:刚性好
D:制造方便
E:质量大,韧性差
F:质量小、成本低
G:碰撞后易变形
关于大型低速柴油机主轴承结构说法正确的是()。
A:锡基白合金和锡铝合金都可用作薄壁瓦材料
B:锡基白合金和锡铝合金都可用作厚壁瓦材料
C:主轴承都是厚壁轴瓦结构
D:主轴承都是薄壁轴瓦结构
自动舵比例调节旋钮(舵角调节)的调节方法是:() ①、重载时调大些; ②、轻载时调大些; ③、部分舵叶露出水面时应调大些; ④、海况恶劣时调大些
A:①、③、④
B:②、③、④
C:①、③
D:②、④
船舶在波浪中的纵摇周期Tp:()
A:与船长L成正比
B:与船长L成反比
C:与船长L的平方根成正比
D:与船长L的平方根成反比
A sling psychrometer is used to measure().
A:seawater temperature
B:engine temperature
C:dry bulb and wet bulb temperatures
D:barometric pressure
The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within().
A:the distance of visibility
B:1/2 the distance of visibility
C:a distance appropriate to the existing circumstances and conditions
D:the distance that it would require for the propeller to go from full ahead to full astern
一般用于系缆、吊货索、吊艇索的钢丝是()钢丝绳。
A:硬;
B:半硬;
C:软;
D:B或C。
两台增压器转子具有相同的质量,若其平衡精度相同,则其重径积()。
A:相等
B:不相等
C:不一定
D:都不对
在静水力曲线图中,()互为正比。
A:淡水排水量曲线和海水排水量曲线
B:水线面面积曲线和厘米吃水吨数曲线
C:海水排水量曲线和海水型排水体积曲线
D:A和B
超大型船单点系泊过程中,波浪较小时,出缆长度多为水面至缆孔高度的()倍;波浪明显时,则()。
A:3.5,收进些为好
B:3.0,收进些为好
C:2.5,松长些为好
D:1.5,松长些为好
在()时,应立即使用应急操舵。
A:主操舵装置发生故障;
B:随动操舵失灵;
C:自动操舵和随动操舵系统发生故障;
D:自动操舵失灵。
如何判定海图的可靠程度?
根据《防止船舶污染海域管理条例》规定,下列哪类船舶应满足有关留船压载水的数量规定()。
A:任何船舶
B:大型散货船
C:任何油轮
D:进港空载油船