A、①;②;③
B、①;③
C、②;③
D、①;②
通常设有信号灯、探照灯和罗经的甲板为_______。
A.艇甲板
B.顶甲板
C.驾驶台甲板
D.上层建筑甲板
假设1同步发电机为电网运行机，2同步发电机并车成功后，应如何转移负载？
A.向“快”方向先调节2机的调速器伺服马达手柄；再反方向调节1机
B.向“慢”方向先调节1机的调速器伺服马达手柄；再反方向调节2机
C.同时同方向调节二机的调速器伺服马达手柄
D.同时调节二机的调速器伺服马达手柄，1机向“慢”方向，2机向“快”方向
船上较常见的汽轮机泵是( )。
A.主海水泵
B.压载泵
C.货油泵
D.应急消防泵
A、观察
B、着色探伤
C、射线探伤
D、涡流探伤
绷带螺旋反折法包扎通常用于______。
A.胸部
B.头部
C.四肢
在船舶锚泊时，船员在做明火作业的同时，应向当地港监报告。
此题为判断题(对，错)。
舵的转船力矩( )。
A.与航速无关
B.与舵叶浸水面积成正比
C.随舵角向90°接近而不断增大
D.与舵叶处水的流速成正比
A.软盖
B.老盖
C.中盖
D.吊货索
A、预借提单
B、倒签提单
C、收货待运提单
D、清洁提单
在使用DSC呼叫_____时可以不用输入建议的随后工作频率或信道。
A.船台
B.岸台
C.船队
D.所有船
在下列情况中哪一条，用人单位不可随时解除劳动合同＿。
A.劳动者不能胜任工作，经培训或调整岗位后仍不能胜任
B.在试用期内被证明不符合录用条件
C.严重违反劳动纪律或用人单位规章制度
D.严重失职，营私舞弊，对用人单位利益造成重大损害的
改向或长时间在同一航向上航行,要注意每隔_____________进行磁罗经和陀螺罗对比。
A.半个小时
B.1~2小时
C.1个小时
D.2个小时
If you must pump bilges while a vessel is in port，you should pump only ______．
A.If discharge is led to a shore tank or barge
B.During the hours of darkness
C.On the outgoing tide
D.As much as is necessary
缔约国政府不可授权给RSO的职责包括______。Ⅰ、规定适用的保安等级Ⅱ、确定需指定港口设施保安员的港口设施Ⅲ、规定保安声明的要求Ⅳ、批准"港口设施保安计划"
A.Ⅱ～Ⅳ
B.Ⅰ～Ⅳ
C.Ⅰ+Ⅱ+Ⅳ
D.Ⅰ～Ⅲ
岛礁区航行,通过珊瑚礁的最有利时机是微风、_____________和___________时。
A.高潮、面向太阳
B.高潮、背向太阳
C.低潮、面向太阳
D.低潮、背向太阳
转向避让时，为获得相同的避让效果，慢船应比快船________。
A.转得早转得大
B.转得早转得小
C.一样
D.转得大转得晚
固体散货船采用尾机型的主要目的是：
A.确保螺旋桨浸沉深度
B.缩短机舱长度
C.船型美观
D.扩大货舱容积和方便装卸货
船舶防污染的主要技术手段有______。Ⅰ、改变原有的操作方法;Ⅱ、改变船体结构;Ⅲ、增设防污染设备。
A.Ⅰ+Ⅱ
B.Ⅱ+Ⅲ
C.Ⅰ+Ⅱ
D.Ⅰ+Ⅱ+Ⅲ
A.①②
B.③④
C.①③
D.②④
换向阀阀芯不能移动或复位的原因有： ①电路不通或电压不足②阀芯和阀孔的配合间隙过小③油温过高，使阀芯膨胀卡死
A.①
B.②
C.①②
D.①②③
下列哪些船舶不应妨碍只能在狭水道或航道以内安全航行船舶通行？________。
A.帆船与船长小于20米的船
B.从事捕鱼船
C.A、B都是
D.A、B都不是
实践中，船舶开航前驾驶台与机舱间备车的联系程序通常是_______
A.驾驶台先将车钟指在“备车”，机舱立即回令“备车”，主机既告备妥
B.驾驶台先将车钟指在“备车”，机舱回令“备车”，一切准备就绪后，机舱将车钟指在“停车”，驾驶台回令“停车”，主机即告备妥
C.驾驶台先将车钟指在“备车”，机舱回令“备车”，机舱一切准备就绪后，将车钟指在“停车”，主机即告备妥
D.驾驶台先将车钟指在“停车”，机舱一切准备就绪后，电话通知驾驶台即可
A、船员服务机构
B、船员外派公司
C、船级社
D、船舶所有人、经营人、管理人
进港航行，利用船首方位叠标导航，如发现前标偏在后标的右面，表明船舶偏标线的()（测者自海上观测叠标时的左右），应及时用小舵角()调整航向。
A.左面，向左
B.左面，向右
C.右面，向左
D.右面，向右
丁类火是由可燃金属引起的火灾且燃烧温度极高可用特殊干粉或沙土扑救。
此题为判断题(对，错)。
第二组
Displacement pumps are those where the volume of the pump chamber is alternately increased to draw the liquid in from the suction pipe and then decreased to force the liquid out into the delivery pipe. Centrifugal pumps are those wherein an impeller rotating at high speed throws the liquid by centrifugal force from the center to the periphery of the impeller where the liquid is discharged through the delivery outlet.
Gear pump consists of two or more meshing gears (spur, single or double helical teeth) enclosed m a close-fitted housing. These are used extensively for pumping fuel oil, lubricating oil and hydraulic oil. When gears are unmeshed on the inlet side, a pressure drop occurs that helps the atmospheric pressure acting on the surface of the oil in the reservoir to force it up the pipe to fill the void, the oil is then transferred around the periphery of the pump housing. As the gear teeth mesh again on the outlet side, they form. a seal that prevents oil from backing up to the inlet, the oil in the void is then be forced out into the discharge line.
All vane pumps have a rotor driven within a ring (cam ring) by a drive shaft coupled to a prime mover. A cylindrical rotor with sliding vanes, generally in radial slots, rotates within the ring. The center of the rotor is offset from the center of the ring. In a simple vane pump, as the rotor turns, the vanes are forced outward against the inner surface of the cam ring by centrifugal force. This outward radial movement of the vanes and turning of the rotor causes the chamber between the vanes to increase as the vanes pass further away from the inlet port. This increase in volume results in a lowering of pressure until the atmospheric pressure is sufficient to force oil from the reservoir into the inlet chamber. Oil from the inlet is swept away by the vanes toward the outlet port through a decreasing series of chambers until it is forced through the outlet port. A vane pump of balanced design has an elliptical cam ring so that two pumping chambers are formed. This pump is in hydraulically balance, since the two intake and two outlet ports are diametrically opposed to each other. Therefore the side loads exerted on the rotor cancel out, thereby increasing bearing lift and permitting high operating pressure.
According to the last sentence of paragraph 1, from where the liquid is discharged through the delivery outlet?
A.from the eye of the impeller
B.from passage of impeller
C.from the periphery of the impeller
D.from the impeller
A、在较短时间内各种气象要素的综合表现
B、气象要素的多年平均特征(其中包括极值)
C、气象要素的一年平均特征(其中包括极值)
D、天气形势
大型低速二冲程柴油机的活塞由以下部件组成________。I．活塞头II．活塞裙III．活塞销IV．活塞杆V．柔性螺栓VI．十字头
A.I+II+IV+V
B.II+III+IV+VI
C.II+III+IV+VI
D.II+III+V+VI
Modern handheld digital tachometers operated by counting light pulses returned to the unit by
A.the tach generator
B.either the coupling or shaft
C.a small bulb attached to the shaft
D.a piece of reflective tape
A、仅仅是Ⅰ
B、Ⅰ+Ⅱ
C、Ⅰ+Ⅲ+Ⅳ
D、Ⅰ~Ⅳ
A、8.917
B、8.925
C、8.933
D、9.107
接警出动到火场选择行驶路线是非确定型决策。(判断对错)
心率高于每分钟______次的叫做心动过速。
A.70
B.80
C.100
Which statement about the Flinders bar of the magnetic compass is CORRECT ________．
A.It compensates for the error caused by the vertical component of the Earth's magnetic field
B.It compensates for error caused by the heeling of a vessel
C.It compensates for quadrantal deviation
D.It is only needed in equatorial waters
IMO所定义的A3海区是指_____。
A.除A1、A2海区外的南北纬70度之内的Inmarsat覆盖区域
B.除A1海区外的MF海岸电台覆盖区
C.Inmarsat静止卫星覆盖区
D.具有DSC报警功能的HF海岸电台覆盖区。
船舶的首尾尖舱可作为______。
A.主动力装置的舱室
B.载运货物的舱室
C.旅客起居的舱室
D.储存淡水，航行中可调节纵倾
Carbon dioxide as a fire fighting agent has which advantage over other agents?
A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
D.It is most effective on a per unit basis
机舱各备件申领程序是主管轮机员提出，______后报公司。
A.轮机长审核
B.船长签署
C.大管轮审批
D.A+B
A.环冲击增大
B.环易于折断
C.环磨损增加
D.燃气漏泄
A、Ⅰ/Ⅲ
B、Ⅱ/Ⅳ
C、Ⅰ/Ⅲ+Ⅳ
D、Ⅱ/Ⅲ+Ⅳ
船舶安全检查是船舶在______。
A.航行中自行检查
B.停航后由机务登船检查
C.靠停码头由海事局检查官上船检查
D.起航前由海关进行
A.0.3～0.5
B.0.4～0.6
C.0.5～0.7
D.0.6～0.8
限制功率的液压系统实质上是限制( )。
A.最大工作压力
B.液压发动机转速
C.工作压差和流量的乘积
D.液压发动机的扭矩
仰卧压胸人工呼吸法是最有效的人工呼吸方法。
此题为判断题(对，错)。
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