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出自:海船船员证
对于冷却运输的冷藏货物,需要用通风机对冷藏舱进行通风换气,以起到降温作用,通常宜在()进行。
A:夜间
B:白天
C:早晨或傍晚
D:任何时候
Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to()
A:higher speed required
B:flywheel-effect
C:lower starting temperatures
D:higher compression pressures
()is not a vessel restricted in her ability to maneuver.
A:A vessel engaged in laying,servicing or picking up a navigation mark,submarine cable or pipeline
B:A vessel engaged in dredging,surveying or underwater operations
C:A vessel engaged in replenishment or transferring persons,provisions or cargo while underway
D:A power driven vessel which because of her draught in relation to the available depth and width of navigation water is severely restricted in her ability to deviate from the course she is following
Leaking oil seals on a diesel engine turbocharger can cause()
A:the engine to run after the fuel has been secured
B:the engine to over-speed
C:a fire
D:all of the above
淡水出口温度过高,会导致柴油机()。
A:缸壁磨损加剧
B:硫酸腐蚀严重
C:热损失增加
A record of the types and strengths of steels used on a ship must be included in the().
A:general plans
B:builder's documentation
C:Certificate of Inspection
D:construction portfolio
属于边缘海的是()
A:红海.波斯湾.渤海
B:日本海.东海.黄海.南海
C:C.B都对
D:D.B都错
承运人使船舶适航的义务是(),承运人只要做到谨慎处理,就不负有使船舶()的义务。
A:相对的;绝对适航
B:相对的;适航
C:绝对的;相对适航
D:绝对的;适航
The radar control that shortens all echoes on the display and reduces clutter caused by rain or snow is the().
A:sensitivity time control (sea clutter control)
B:receiver gain control
C:brilliance control
D:fast time constant (differentiator)
公约规定,船舶压载水管理的年度检验在证书签发周年日()进行。
A:3个月前
B:前3个月
C:前后3个月内
D:前后5个月内
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?().
A:Bends in the piping
B:Slowing the pumping rate
C:Pipeline valves
D:Backing rings for pipe welds
管理中空压机排气量减小的最常见原因是()。
A:气阀和活塞环漏泄
B:冷却不良
C:余隙增大
D:安全阀漏泄
零件性能测量仪表有() Ⅰ.电磁式微动传感器; Ⅱ.电磁式距离传感器; Ⅲ.电磁式传感器。
A:Ⅰ
B:Ⅱ
C:Ⅰ+Ⅱ
D:Ⅰ、Ⅱ、Ⅲ都错
拖船拖尾掉头离港时,假如无风流的情况下,船尾离出至少30°时,才可解掉船首各缆绳,则在有较强的吹开风时,船尾离出角度应:().
A:小于30°
B:大于30°
C:大于40°
D:小于40°
提单签发后,承运人必须保证集装箱货物数量的准确和货物的完好。
A轮与B轮同在一条经线上,A轮在赤道,B轮在60°S,同时向西航行300海里后,则A轮与B轮的经差DλAB是()。
A:5°W
B:5°E
C:10°W
D:10°E
随动操舵的指令机构是人工操舵的舵轮,而自动操舵的指令机构是()。
A:风流浪信息
B:人工输入信息
C:计算机输入信息
D:船舶偏航信息
为什么说ISM规则的培训是建立SMS的基石?
My gyro-compass()is two degrees east.
A:trouble
B:error
C:wrong
D:mistake
北向上相对运动显示方式,雷达必须输入()信号。
A:磁罗经航向
B:航向、航速
C:航速
D:电罗经航向
《海上交通事故调查处理条例》规定,根据海上交通事故发生的原因,港监有权对船舶所有人采取()。
A:令其停航、停止作业的措施
B:责令其限期加强所属船舶的安全管理的措施
C:其他必要的强制处置措施
D:A、B、C都是
If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will ()
A:decrease until the engine speed increases
B:increase as the load increases
C:decrease as the load
D:increases remain unchanged
在采用计算机控制的船舶电站系统中,当发生严重故障后需要故障停机时,计算机的处理过程是()。
A:立即使停车电磁阀动作
B:发出警报,提醒值班轮机员处理
C:进行负载转移后,在空转规定时间后使停车电磁阀动作
D:进行负载转移后,立即使停车电磁阀动作
船长应按安全管理体系文件的规定,将()及时向岸上管理部门报告。 Ⅰ.不符合规定的情况; Ⅱ.意外情况; Ⅲ.事故; Ⅳ.险情。
A:Ⅰ~Ⅳ
B:Ⅰ~Ⅲ
C:Ⅰ,Ⅱ,Ⅳ
D:Ⅰ,Ⅲ,Ⅳ
下列操纵行动中属于船舶应急操纵用锚的是()。
A:运用锚设备在船舶搁浅后固定船体及脱浅
B:抛锚掉头
C:锚泊
D:抛锚驶靠
A number of biological sewage treatments plants are in use at sea but nearly all work on the principle called ()
A:deoxygenating
B:extended aeration
C:oxygenating
D:bubbling air
In a domestic fresh water system, the pump starters are controlled by () switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.
A:water level
B:water flow
C:temperature
D:pressure
石油经二次加工,渣油的比例越来越少,质量也越来越差,下列加工方法中()剩下的渣油质量最差。
A:常压蒸馏
B:减压蒸馏
C:减黏裂化处理
D:真空蒸馏
湿蒸汽经绝热节流后,()不变。
A:压力
B:比焓
C:比熵
D:都不对
船舶漂浮的平衡条件是()。
A:重力等于浮力,方向相反,而重心与浮心不在同一条垂线上
B:重力小于浮力,重心在浮心之下
C:重力等于浮力,方向相反,作用于与静水面垂直的同一条直线上
D:重力大于浮力
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