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出自:海船船员证
Radar makes it possible for us()in dense fog.
A:to be sailing
B:sailing
C:sail
D:to sail
When the Captain of the Port or Officer in Charge,Marine Inspection issues an order of suspension to the operator of a vessel concerning oil transfer operations,it().
A:is always effective immediately
B:includes a statement of each condition requiring corrective action
C:must be in writing before it takes effect
D:All of the above
油溶性研磨膏使用时需用(),煤油或机油等研磨液稀释。
A:航空汽油
B:轻柴油
C:汽轮机油
D:汽油
对于纵骨架式船体结构,下列说法正确的是() Ⅰ.纵向构件尺寸大; Ⅱ.增加了船舶的自重; Ⅲ.能充分利用舱容。
A:Ⅰ,Ⅱ
B:Ⅱ,Ⅲ
C:Ⅰ,Ⅲ
D:Ⅰ,Ⅱ,Ⅲ
脉冲宽度越大,则雷达最大作用距离(),距离分辨力()。
A:越大,越高
B:越大,越低
C:越小,越高
D:越小,越低
某轮罗航向060°,磁差3°E,自差4°W,则右正横处物标的磁方位是()。
A:150°
B:146°
C:153°
D:149°
In order to withstand fluid head pressure on a ship,stiffeners are often attached to the bulkhead().
A:penetrations
B:plating
C:framing
D:brackets
当柴油机燃用劣质燃油时,喷油器的冷却介质多使用()。
A:柴油
B:滑油
C:轻柴油
D:淡水
Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?()
A:Holding the valve open for a long period
B:Increasing the starting air pressure used
C:Opening the stating air valve quickly
D:Reducing the starting air valve size
The most practical way of detecting an overload in one cylinder of an operating large, low-speed ,main propulsion diesel engine is to ()
A:check the cylinder exhausts for black smoke
B:listen for combustion knock in that cylinder
C:isolate each cylinder and inspect the injector
D:check the cylinder exhaust temperature frequently
Vessels should maintain a sharp lookout,especially during December through March,when navigating the right whale’s only known calving grounds which lie off the coasts of().
A:Nova Scotia
B:Maine and Massachusetts
C:Georgia and NE Florida
D:California and Mexico
北太平洋的两个表层海流环流系统是()
A:顺转暖水环流和逆转冷水环流
B:逆转暖水环流和顺转冷水环流
C:冷、暖水环流同为顺转环流
D:冷、暖水环流同为逆转环流
关于船舶的受风面积下列说法正确的是()。
A:船舶的正投影面积总是大于船舶的侧投影面积
B:船舶的侧投影面积总是大于船舶的侧投影面积
C:船舶满载时,船舶的正投影面积大于船舶的侧投影面积
D:船舶压载时,船舶的正投影面积大于船舶的侧投影面积
船运冷藏货物时,冻肉长途运输的适宜温度通常是(),短途运输则为()。
A:-10~-12℃;-6℃
B:-12~-14℃;-8℃
C:-15~-17℃;-12℃
D:-18~-20℃;-12℃
The release of the attached ship can()only by provision of bail,usually a very large sum.
A:be secured
B:be sincere
C:be simulated
D:be signature
高斯投影,即高斯-克吕格投影,在航海上适宜用来绘制()。
A:经差小、纬差大的狭长区域的海图
B:高纬地区海图
C:大比例尺港泊图
D:以上均是
双层底以外,下自船底或内底,上至甲板或平台的液舱称为()。
A:压载水舱
B:燃油舱及货油舱
C:淡水舱
D:深舱
The essence of an abandon ship drill is that the survival crafts are manned and operated by the crew members assigned to them on the()
A:tire control plan
B:fire drill
C:muster list
D:All of the above
In addition to lubricating, cylinder oil assists in forming a gas seal and contains () which clean the cylinder liner.
A:additives
B:water
C:grease
D:acid solution
海损溢油事故应急反应时,最优先考虑的是保证(),并采取()。
可在真空中传热的方式是()。
A:热传热
B:热对流
C:热辐射
D:B+C
MAN B&WM E系列智能柴油机通过电磁阀控制()控制燃油喷射。
A:高压油泵共轨伺服油驱动机构
B:容积喷射控制单元
C:高压油泵储压器
D:容积喷射控制单元和储压器
MARPOL公约附则Ⅰ要求的船上油污应急计划中报告的程序中
不包括
()。
A:初始报告
B:结论报告
C:补充报告
D:附加报告
In the Northern Hemisphere,an observer at point II in the weather system should experience a wind shift from the().
A:Southwest,clockwise to northwest
B:Northeast,clockwise to west-southwest
C:Northeast,counterclockwise to northwest
D:East,counterclockwise to south-southwest
为使滚装船装卸作业的安全,跳桥的工作坡度应小于()
A:15°
B:8°
C:10°
D:4°
目前海船上普遍采用电力控制操舵装置的主要原因() ①轻便灵敏,线路布置容易; ②不受船体变形和温度变化的影响; ③工作可靠,维修方便,有利于操舵自动化; ④容易与液压舵机配套。
A:②~④
B:①③④
C:①②④
D:①~③
Which of the following statement(s)is/are TRUE regarding a twin pedestal crane set().
A:The cranes may be operated independently
B:The cranes may be interconnected for twin operation
C:When twinned,the crane rotation on the foundation assembly is unlimited
D:All of the above
船舶在什么情况下可以不必严格保证所有值班人员的休息时间?()I、在紧急情况下;II、进行各种演习时;III、在其他超常工作情况下
A:I
B:I、II
C:II、III
D:I、II、III
GPS卫星导航系统发射两种频率的目地是供给()频道接收机消除()的影响。
A:单;对流层折射
B:单;电离层
C:双;对流层
D:双;电离层
关于资源说法错误的是()
A:资源包括物质和非物质的要素
B:狭义的资源仅指自然资源
C:按资源的更替特点分为:可再生资源和不可再生资源
D:资源是指在一定历史条件下被人类开发利用以提高自身福利水平或生存能力的,具有某种稀缺性,受社会环境约束的各种坏境要素或事物的总称
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