出自:海船船员证

某轮真航向为200º,陀螺差为+2º,则该轮应驶的陀螺航向为()
A:198º
B:200º
C:202º
根据过量空气系数的定义,当值增大时()。
A:气缸空气利用率高
B:气缸中空气利用率低
C:柴油机充气效率增大
D:柴油机热负荷增加
() blow more or less constantly(except when monsoons prevail)throughout all seasons at a mean speed of around 14 knots and are generally strongest in the late winter.
A:Trade Winds
B:Winds of the temperate zones
C:Monsoons
D:Land and Sea Breezes
船舶在航时,操船者应当知道万吨级船舶手操舵有舵效的最低速度约为(),而大型船舶约为3kn。
A:2kn
B:3kn
C:4kn
D:5kn
按照表示指示人方法的不同,指示提单又可分为()。 Ⅰ.托运人指示提单;Ⅱ.记名指示人提单;Ⅲ.选择指示人提单;Ⅳ.任意指示人提单。
A:Ⅰ~Ⅳ
B:Ⅰ,Ⅲ,Ⅳ
C:Ⅰ,Ⅱ,Ⅳ
D:Ⅰ~Ⅲ
If an airplane circles a vessel 3 times,crosses the vessel’s course close ahead while rocking the wings,and heads off in a certain direction,what does this indicate().
A:The plane is in distress and will have to ditch
B:The plane is going to drop a package and wishes the vessel to recover it
C:Someone is in distress in that direction and the vessel should follow and assist
D:There is danger ahead and the best course is indicated by the direction of the aircraft
动画文件辅机空压机循环,动画演示了单级压缩理论循环图,过程线1-2,1-2’1-2〞分别代表不同的压缩过程,如果是多变压过程,应使用()表示。
A:1-2〞
B:1-2’
C:1-2
D:无正确答案
为校正罗经纬度误差,应将“纬度”旋钮放到与本纬度()名,其数值误差不超过()的刻度范围内。
A:同;10°
B:同;5°
C:异;10°
D:异;5°
根据我国《海上交通安全法》,未经主管机关批准,不得在()设置、构筑设施或者进行其他有碍航行安全的活动。 Ⅰ.港区、锚地;Ⅱ.航道;Ⅲ.通航密集区;Ⅳ.主管机关公布的航路内。
A:Ⅰ~Ⅲ
B:Ⅱ~Ⅳ
C:Ⅰ~Ⅳ
D:Ⅰ、Ⅱ、Ⅳ
对于右旋螺旋桨,排出流横向力方向为:().
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
在柴油机实际循环的各项损失中不可避免或不可控制的且影响较大的一项损失是()。
A:工质不同的影响
B:传热损失
C:换气损失
D:燃烧损失
Which of the following statements is TRUE regarding automatic identification systems (AIS)? ()
A:AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
B:AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
C:AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels,aircraft and shore stations within the area
D:AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
南半球副热带高压带下沉气流,向南、北分流形成()。
A:东风带,东南信风带
B:盛行西风带,东南信风带
C:东风带,东北信风带
D:盛行西风带,东北信风带
空压机自动控制系统中的双位控制是指()。
A:气压高限和低限的控制
B:冷却水和放残液的控制
C:手动和自动切换的控制
D:集控室和机旁两地控制
风和海流的方向()
A:都是指来向
B:风是指来向,流是指去向
C:都是指去向
D:风是指去向,流是指来向
Which bearing will carry the load on two small points diametrically opposite to each other?()
A:Needle
B:Tapered roller
C:Roller
D:Ball
The series of valves used to control the return flow in well control operations is called the().
A:valve assembly
B:standpipe manifold
C:accumulator manifold
D:choke manifold
在进行舷外作业时,一般由()现场指挥。
A:船长
B:大副
C:三副
D:水手长
下列()与外界肯定没有质量交换但可能有热量交换。
A:绝热系统
B:孤立系统
C:封闭系统
D:开口系统
闭式旋涡泵是指()。
A:流道不直通吸、排口
B:叶轮无中间隔板或端盖板
C:电机与泵封闭在同一壳体内
D:与B相反
主轴颈的下沉量可以用来表示()。
A:曲轴的磨损量
B:主轴颈的磨损量
C:主轴承下瓦磨损量
D:主轴承间隙
为减小偏荡,抛八字锚时,两锚链的张角应:().
A:迎风向
B:背风向
C:迎流向
D:背流向
不符合我国船舶设计要求的是()。
A:夏季室内、外温差不超过6~10℃
B:每人新风供给量30~50m3/h
C:冬季室内湿度控制为50%~60%
D:离布风器风口1m处噪声不大于55~60dB
When turning a ship in restricted space with a strong wind,it is normally best to().
A:Go ahead on both engines with the rudder hard to one side,if on a twin-screw vessel
B:Back down with the rudder hard to one side,if on a single-screw vessel
C:Take advantage of the tendency to back to port,if on a twin-screw vessel
D:Turn so that the tendency to back into the wind can be used,if on a single-screw vessel
Persistent knocking in one cylinder of a diesel engine could be caused by().
A:a low load on that cylinder
B:sluggish piston ring action
C:excessive piston crown cooling
D:excessive clearance of piston pin
根据《海上交通安全法》,下列叙述哪些正确:() Ⅰ.船舶必须持有船舶国籍证书; Ⅱ.船舶处于不适航或不适拖状态时,主管机关有权禁止其进港; Ⅲ.船舶运输危险货物,必须具备安全可靠的设备和条件; Ⅳ.对违反海上交通安全法的人员,主管机关可给予当事人警告、罚款、扣留或吊销职务证书的处罚。
A:Ⅰ~Ⅳ
B:Ⅰ~Ⅲ
C:Ⅰ、Ⅲ、Ⅳ
D:Ⅰ、Ⅱ、Ⅳ
下列说法正确的是:() Ⅰ、不应被妨碍的船舶有时也须给他船让路 Ⅱ、当不应妨碍他船的船舶处于直航船的位置时,也不解除其不应妨碍的义务 Ⅲ、在构成碰撞危险后,不应妨碍他船的船舶的不应妨碍义务仍不解除
A:Ⅱ、Ⅲ
B:Ⅰ、Ⅱ
C:Ⅰ、Ⅱ、Ⅲ
D:Ⅰ、Ⅲ
A seaman may have all or part of his wages deposited by allotment to a bank or savings institution. Which of the following is NOT a requirement for this type of allotment? ()
A:The account must be either a checking or savings account
B:The institution must be insured by the FSLIC or FDIC
C:The account must be opened by the seaman and maintained in the seaman's name
D:All of the above are requirements
根据现行MARPOL公约,哪些是必选附则()。 Ⅰ.《防止油污规则》; Ⅱ.《防止船舶垃圾污染规则》; Ⅲ.《防止船舶造成空气污染规则》; Ⅳ.《控制散装有毒液体物质污染规则》。
A:Ⅰ~Ⅳ
B:Ⅱ、Ⅲ
C:Ⅰ、Ⅳ
D:Ⅲ、Ⅳ
当测者移动时,天球上()不随测者移动。
A:天体垂直圈
B:天体时圈
C:测者子圈
D:测者午圈