第一篇：第46期 2008年第46期海船船员适任统考试题 注释
中华人民共和国海事局
2008年 tide B.vertical distance from the chart sounding datum to the ocean bottom C.average height of water over a specified period of time D.average height of all low waters at a place 海图水深指从海图深度基准线到海底的垂直距离。不需要加上潮水的高度。
8.Defense plans may cause the operation of electronic aids to navigation to be suspended（暂停）with ______.A.no notice
B.one day's notice
C.a week's notice
D.thirty(30)days notice 防卫计划引起的电子助航仪器操作的暂停不会事先发出通告的。这关于一个国家的安全问题。
9.Periodic publications notifying change in, or additions to, previously（以前的）published navigational data are______.A.Supplements
B.Annual Summary C.Navigational Warning
D.Notices to Mariners 周期性的关于以前出版的航海数据的改正或增加的通告是《航海通告》。虽然补编和航行警告也有改正信息，但它们都是有必要时才会出版。而年度摘要里面也只是对航海通告中到1月1日仍然有效的进行汇总。10.______is a full nautical record of a ship's voyage, written up at the end of each watch by the officer of the watch.1890 A.Sea Protest
B.Deck Log
C.Accident Report
D.Seaman's Book 11.Do you need to measure oxygen levels before entering an enclosed space? A.Yes, always B.No C.No if you measure for toxic gases D.yes, but not if you ventilate properly first for 24 hours 这是SOLAS对进入封闭场所的规定。如果氧气含量不足会导致窒息。
12.The extent（范围）of the damage could not be ________though I inspected it with the Chief Stevedore（工头，也可以用FOREMAN）in charge.A.sure
B.contained
C.ascertained（确定）
D.applied 破损的范围只能被确定，而不能被包含或应用，因此B和D是不能用的，而A 中的SURE 是个形容词，在这里也不能用。
13.If you do not wear goggles and helmet, your chances of being _______will be greater.A.beaten
B.damaged（对物）
C.hurt
D.stricken 可以通过GOGGLES这个词来去除不合理选项，首先B是对物来讲的，不能用在人身上，护目镜的目的是为了防止灰或者其他小东西蹦到眼睛里，因此用BEAT 和STRIKE就会觉得动作比较大，显得不合理。而HURT不管你是大的伤害还是小的伤害都可以用。
14.Before sailing, mariners on duty shall check the headings of magnetic compass by comparison with__________.A.ship’s clock
B.engine movement recorder
C.repeaters（复示器）D.navigation
46903 lights 能够用来较对磁罗经航向的除了用测罗经方位差的方法，用电罗经或者其复示器来比对。A中的船钟，B中的车钟记录薄，D中的航行灯都与题目不符。15.Painting on _______ is prohibited because it will weaken its sensibility.A.ship shell
B.exterior of winches
C.hydrostatic release（静水压力释放器）
D.hold ladders 在静水压力释放器上涂上油漆会使它的灵敏度降低。因此是不能刷油漆的。
16.You are on watch and the pilot has just anchored the vessel.The next thing that you should do after the anchor has been let go is to_______.A.stop the engines
B.escort the pilot to the accommodation ladder C.plot the vessel’s position on the chart
D.make a round of the weather decks 无论引航员在船抛锚还是自己抛锚，在锚LET GO 的时候应该立即记下船位，时间，船首向，在海图上定下锚位，有时还需要向港口当局报告。17.SOLAS is the abbreviation（缩写）of __________.A.International Maritime Dangerous Goods Carried by Sea B.International Code for the Construction and Equipment of ships Carrying Gases in Bulk C.International Convention for the Safety of life at Sea D.International Regulations for Preventing Collisions at Sea 18.The SOLAS Convention was developed（可以理解为制定）by the_________.A.IMDG conference
B.American Bureau of Shipping C.International Maritime Organization
D.American Institute of Maritime Shipping 19.How to determine the density（密度）of the slop（污水）after tank washing? A.By use of an interferometer（干涉计）
B.By use of a hydrometer（比重计）C.By use of an interface（界面）
D.By use of a thermometer（温度表）20.Any discharge into the sea of oil or oily mixtures from ships to which this Annex of MARPOL 73/78 applies shall be _______except when special conditions are satisfied.A.required（要求）B.requested（被请求）C.promoted（促进）D.prohibited（禁止）
除了特殊情况，船舶禁止向海中排放油或油类混合物。21.To EASE（松）A LINE means to ________.A.cast off
B.double up so that one line does not take all the strain C.pay out line to remove most of the tension
D.slack it off quickly 通常在码头靠泊时有时会因为卸货或潮水的原因，缆绳受力会增加，应该松一松。22.Finally, when your ship is alongside, don’t forget__________.A.having rat guards（挡鼠板）properly mounted on your moorings B.to have rat guards properly mounted on your moorings C.to have rat guards properly mounted at your moorings
D.having rat guards properly mounted on your moorings Forget to do something忘记做某事。Forget doing something 忘记做过某事。
46903 23.THE SPEED OF A VESSEL ADJUSTED TO THAT OF A PILOT BOAT AT WHICH THE PILOT CAN SAFELY EMBARK is _______.A.Ground speed（对地速度）
B.Boarding speed（登船速度）C.Relative speed（相对速度）
D.Speed of the vessel（船速）
24.If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load? A.Steel wire rope
B.Manila（马尼拉绳）C.Nylon（尼龙绳）D.Polypropylene（聚丙烯）rope 虽然不同的纤维绳的强度不同，但是他们与钢丝绳相比强度都要弱。25.Heave（向上拉）is motion（运动）along the______.A.longitudinal axis（纵向）B.transverse axis（横向）C.Vertical axis（垂直）D.centerline axis（中心轴线）
26.The side of a ship which is farther from the winds is______.（远离风的一舷）
A.fairway side
B.open sea side
C.lee side（下风舷）D.roadstead（水道）side A，B，D三个选项都不属于船的某一舷。船有左舷，有右舷，有上风舷，有下风舷。27.A vessel is considered to be restricted in her ability to maneuver under the rules if she is______.（操限船）
A.at anchor（抛锚）B.mine-clearing（扫雷作业船）C.engaged in fishing（捕鱼船）
D.engaged in towing（从事拖带作业船）
28.Vessels shall be deemed to be in sight one another only when one ______ from the other.A.can be observed visually
B.can be observed by radar C.can be located on the radar
D.can be heard 避碰RULE3 “K”条目原话。
29.Every vessel shall proceed at a safe speed ______ the prevailing circumstances and conditions.A.adapted to
B.used by
C.liable to
D.adaptation to
避碰 RULE 16 的 B.Durations of light and darkness are equal C.Shows not less than 60 flashes per minute D.Shows quick flashes for about 5 seconds followed by a 1 second dark period 我国快闪为一分钟60次，甚快为120次，超快为160以上。
33.A SEAMARK, LE.A BUOY, INDICATING THE NORTH, EAST, SOUTH OR WEST FROM A FIXED POINT, E.G.A WRECK is______.A.Entrance buoy
B.New buoy
C.Port buoy
D.Cardinal buoy 34.A line connecting all possible of your vessel at any given time is a______.A.Longitude line
B.Latitude line
C.Line of position
D.Fix 题目中应该少个单词POSITION，应该加在POSSIBLE后面。意思为一条连接任一时间内你船可能的位置点的线是位置线。35.Spring tides are tides that______.（大潮）
A.have lows lower than normal and highs higher than normal B.have lows higher than normal and highs lower than normal C.are unpredictable D.occur in the spring of the year 大潮发生在月球处在新月或满月时，也就是太阳和月亮潮汐椭圆体的长轴方向一致时。此时高潮最高，低潮最低。36.Spring tide occur______.（大潮）
A.when the moon is new or full B.when the moon and sun have declination of the same name C.only when the moon and sun are on the same sides of the earth D.at the beginning of spring when the sun is over the equator 同上。
37.Deballasting a double bottom has what effect on KG?______.从双层底中排压载水会对重心高度产生什么影响？
A.KG is increased
B.KG is decreased C.KG is not affected
D.KG increases at light drafts and decreases at deep drafts 因为双层底中水的平均重心要比整船的平均重心要低，因此排完之后整船的平均重心要比原来高。从公式M。*KG。=M1*KG1+M2*KG2+„，M。为总重，KG。为开始始平均重心。如果把M1和KG1看成是这里双层底的压载水，排出后公式两边都减去M1*KG1，38.The difference between the initial trim（吃水差）and the trim after loading is known as______.A.trim
B.change of trim
C.final trim
D.change of draft 原始吃水差与装货后的吃水差之间的差值当然时吃水差变化量。D表示吃水变化。39.A semi-submersible which will not remain upright and will assume a list either to port or to starboard is likely to have______.A.a large TCG
B.a negative GM
C.excessive ballast
D.insufficient deck load 当一条船如果不能维持正浮而且呈现出不是左倾就是右倾的现象，说明他的GM为负
46903 值。
40.What is the main purpose of dunnage（垫舱物料）? A.To act as ballast for light vessels
B.To provide ventilation（提供通风）and drainage
（排水）for cargo
C.To secure the tarpaulins（防水油布）in place
D.to support weakened bulkheads（防水壁）
41.All the holds to be loaded with grain must be swept ______commencement of loading.A.cleanly/during
B.clear/meanwhile
C.clean/between
D.clean/prior to Prior to 表示在…..之前
42.Protection of cargo against tainting（污染）damage can best be obtained by______.A.Ventilating the space B.Not ventilating the space C.Proper use of paper separation and dunnage
D.Segregation（隔票）of cargo by using different hatches 保护货物免受污损的有效方法就是隔舱来进行隔票。
43.A ship's forward draft is 22′04“and its after draft is 23′00”.The draft amidships is 23′04“.This indicates a concentration（集中）of weight______.A.at the bow
B.in the lower holds
C.amidships
D.at the ends 公式dm=(da+df)/2, 可以算出平均吃水比实际船中吃水要小，说明船中装的货偏多了。44.Foreman, the ship ______, please get the stevedores to fill the port wings with heavier package.A.lists to starboard
B.is shifting to starboard C.is inclined to starboard
D.is listing to starboard 在左侧装重货说明船船有一定的右倾，用来调正船身。45.You are kindly requested to supply the necessary tallyman（理货员）to do ______on board the ship during the discharging of the cargo.A.the tallying work
B.the lashing work
C.the cleaning work
D.the work of opening and closing hatches 46.During loading or discharging, the tallymen must make contact with ______on duty so as to solve problems on time.A.ship owner
B.ship's officers
C.shippers
D.consignors 在码头时大副不值班，二副三副值货班，码头有什么事先找当班驾驶员，如果驾驶员不能解决再找大副或船长。47.CAPE WEST WIND WEST TO SOUTHWEST 15 TO 20 KNOTS WEATHER SHOWERS.This description is likely to be under the heading of_______.A.FORECAST
B.STORM WARNING C.GENERAL SITUATION
D.MAP ANALYSIS 有具体的风和雨状况，属于天气预报。题中CAPE WEST 是一个区域，风是西转西南风15到20节，阵雨。
48.When air is at its dew point it______.46903 A.will contain no additional moisture
B.has the lowest relative humidity C.cannot keep up its moisture
D.has a low absolute humidity 当空气在露点温度时水汽刚好平衡，温度再下降就会有多余水份。
49.______causing strong winds and rough sea north west bay of Biscay
A.strong low pressure
B.strong high pressure C.steep pressure gradients（陡的气压梯度）D.steep gradients pressure 形成风的主要原因就是水平气压梯度力。
50.In the doldrums（赤道无风带）you will NOT have______.A.high relative humidity
B.frequent showers and thunderstorms C.steep pressure gradients
D.frequent calms 既然是无风则肯定没有陡的气压梯度。
51.The best estimate of the wind direction at sea level can be obtained from observing the direction of the______ A.cloud movement
B.vessel heading
C.waves
D.swells 在海上通常有浪也有涌，涌时从远处而来，与附近海面关系不大，而浪是由于周围的风引起的，浪的来向也是风的大致来向。
52.Most propellers（螺旋桨）on merchant vessels are constructed of（由„组成）______.A.manganese bronze（锰铜合金）B.cast iron C.mild steel D.improved plow steel 53.The collision bulkhead（防撞舱壁）is located______.A.on the bridge deck
B.between the passenger and cargo areas C.at the stern of the ship
D.as the first watertight bulkhead ahead 54.Which is the summer load waterline on the load waterline mark? ______.A.The first line at the bottom
B.The second line from the bottom C.The third line from the bottom
D.The fourth line from the bottom 看下图及图下文字。
55.All marine low-speed diesels are of what design?船上低速柴油机的设计原理？
A.Four-stroke
B.Two-stroke（二冲程）C.Electronic ignition
D.Forced exhaust
46903 56.The holding capability of an anchor is primarily determined（主要取决于）by the______.A.shape of the anchor
B.stowage of the anchor on board C.anchor's ability to dig in（噬土能力）D.size of the vessel and its draft 锚的抓力由锚的抓力和锚链的摩擦力组成，57.The required portable radio apparatus on an international voyage must be stowed in______.A.the Master's quarters B.the ship's office C.the radio room, bridge, or protected location D.an unlocked cabinet next to the station bill 通常用EMERGENCY VHF，配三只，外加三只备用电池。
58.A radar range（雷达测量的距离）to a small, charted object such as a light will provide a line of position in the form of______.A.straight line（直线）B.Arc
C.parabola（抛物线）D.Hyperbola（双曲线）雷达距离位置线为一条弧线。
59.______is on the panel（控制面板）of radar.A.KEYLOCK
B.REPEATER C.STATIC INVERTER
D.ANTI-CLUTTER-SEA（抗海浪干扰）
60.Does current and drift affect the CPA/TCPA calculations on a true motion display?真运动模式中流是否会影响CPA/TCPA的计算。
A.Yes
B.No
C.Only a little bit
D.Yes, very seriously 61.If the magnetic heading is greater than the compass heading, the deviation（自差）
is______.A.east
B.west
C.north
D.south 从公式磁航向=罗航向+自差，所以这里的自差为正值。东正西负。62.Deviation is the angle between the______.A.true meridian and the axis of the compass card B.true meridian and the magnetic meridian C.magnetic meridian and the axis of the compass card D.axis of the compass card and the axis of the compass card 同上
63.Variation（磁差）is a compass error that you______.A.can correct by adjusting the compass card B.can correct by adjusting the compensating magnets C.can correct by adjusting the vessel's heading D.cannot correct 磁差是地球本身产生的，不能够纠正和调整。
64.How much can the AIS broadcast made be overloaded without any significant operational effect?
A.50-100%
B.200-300%
C.400-500%
D.No overload is accepted
46903 65.Which statement concerning GPS is TRUE?
A.It cannot be used in all parts of the world.B.There are 12 functioning GPS satellites at present.C.It may be suspended without warning.D.Two position lines are used to give a 2D fix.由美国军方控制。也可以用排除法，因为它是全球定位系统，排除A；由二十一颗工作卫星和多颗备用卫星在运行，排除B；两维定位要三条位置线，排除D。
66.The GPS satellite orbits the earth（卫星绕地球的运行周期）in approximately______.A.3 hours
B.6 hours
C.12 hours
D.24 hours 67.The maritime radio system consisting of a series of coast stations transmitting coastal warning is called______.A.NAVTEX
B.HYDROLANT/HYDROPAC
C.NAVAREA
D.SAFESEA C和D不属于无线电系统，C为海域、D无义；B为大西洋和太平洋航行警告，只能算是系统发送的内容，但不是系统。
68.Which action should you take after sending a false distress alert on VHF? A.send a DSC cancellation message on Ch-70.B.make a voice announcement to cancel the alert on Ch-16 C.make a voice announcement to cancel the alert on Ch-13 D.Make a voice announcement to cancel the alert on Ch-22A 当在VHF上发生误报警处理的方法就是在16频道广播取消。69.RESULT OF SEARCH NEGATIVE（搜救无效）means______.A.the search has found nothing
B.the derelict has been found C.the derelict has been located
D.the derelict has been sighted 70.If you receive the signal over radiotelephone of ”Romeo Papa Tango" while using the International code of signals, you should______.A.report to the caller B.repeat your last transmission C.continue since be received your last transmission D.end the transmission 71.The generators on your ship have shut down.Leaving you without navigation lights.Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? A.Mayday Mayday Mayday
B.Pan Pan Pan C.Security Security Security
D.lights out lights out lights out MAYDAY 表示遇险，PAN表示紧急，SECURITY表示安全。航行灯不亮只能算安全，因为它不影响正常的海上航行。
72.The pilot(embarked)the ship at 1830 hours（选同义词）
A.boarded（登船）
B.left
C.piloted
D.loaded 73.Cleaning, painting and repairing work is known as______.（敲锈，刷漆和修理工作）
A.maintenance work（保养工作）B.lashing work C.tallying work D.overtime work
46903 74.The lines forward from the bow（首缆）and aft from the stern（尾缆）when a vessel is moored to the dock（船坞）are ______.A.bow and stern lines
B.breast lines
C.halyards
D.warps 75.A common class of wire rope used for mooring is the 6×19 class.What does the 6 represent（表示）?（多少股）
A.Factor of safety
B.number of wires per strand C.number of strands（绳股）per wire rope
D.number of wires in the core 76.It is NOT advisable to use nylon for alongside towing because it______.A.stretches too much（弹性太强）B.is too difficult to make fast C.parts too readily
D.is too susceptible to mildew 尼龙绳由于弹性太强通常不用来做拖缆。
77.The end of the joint with the exterior threads is called the______.A.pin（销）
B.stem
C.box
D.stand 78.An orange flag showing a black circle and square is a______.A.signal indicating a course change B.distress signal of asking to communicate with another vessel C.signal of asking to communicate with another vessel D.signal indicating danger 表示字母J。
79.The following information may not be required to be communicated to a distressed craft? A.Own vessel identity, call sign, name and position B.Own vessel speed and ETA to distressed craft C.distressed crafts true bearing and distance from ship D.Rescue award（奖励）if successful 海上人命救助是无偿的。
80.A fuel-air mixture below the lower explosive limit（爆炸下限）is too______.A.rich to burn
B.lean to burn
C.cool to burn
D.dense to burn 可燃气体在混合物中的比例如果低于爆炸下限则连燃烧都不可能。
81.Which of the following materials has the best heat conduction（热传导最好的材料）? A.gas
B.liquid
C.metal（铁）
D.wood 82.A self-contained breathing apparatus（自给式呼吸器）is used to______.A.make underwater repairs to barges B.determine if the air in a tank is safe for men C.enter areas that may contain fumes or lack oxygen D.resuscitate（复苏）an unconscious（无知觉）person B 选项应该用测氧仪来测。水下作业虽然也要用到呼吸器，但不是我们船上的这种呼吸器，通常要能使用超过一小时。
83.What should you do with your emergency position indicating radio beacon if you are in a lifeboat during storm conditions?
A.Bring it inside the liferaft and leave it on.46903 B.Bring it inside the liferaft and turn it off until the storm passes.C.Leave it outside the liferaft and leave it on.D.Leave it outside the liferaft and turn it off.拿进筏里的目的是为了防止大风浪天气将EPIRB打落。
84.After launching, an inflatable raft should be kept dry inside by ______.A.opening the automatic drain plugs
B.draining the water pocket C.using the electric bilge pump
D.using the bailers and cellulose sponge（海绵）A、B、C三个选项在救生筏中都是没有的。
85.______ is the most visible signal of distress from a lifeboat at sea in the daytime.A.Smoke signal B.Flash signal C.Fire signal D.Radio emergency transmission D不是视觉信号，没有C这种视觉信号，B为闪光灯信号，白天不容易被发现。86.Most minor spills of oil products are caused by ______.A.equipment failure
B.human error C.major casualties
D.unforeseeable circumstances 海上事故多数是人为，小量溢油也不例外。
87.You should FIRST treat a simple fracture by ______.A.attempting to set the fracture
B.preventing further movement of the bone C.applying a tourniquet
D.alternately applying hot and cold compresses 针对简单的骨折最初的处理就是将其固定。防止因挪动扩大伤势。88.What is the proper first aid for LPG in the eye? A.Apply an ice pack to the eye.B.Keep the eyelid closed.C.Flush the eye with plenty of water.D.Rub the eye area clean.眼睛溅上液化石油气应用清水或牛奶洗。
二、关联题（每组关联题题干下有4个小题，每小题有4个选项）D.allow a certain amount of afterglow of targets 90.In the ship’s head up mode, if the ship rotates starboard-wise all fixed targets on the screen will appear to ______.A.rotate starboard-wise
B.rotate port-wise C.remain stationary
D.move on a reciprocal heading at the speed the ship is moving 91.Afterglow of targets will ______.A.have the ship’s heading marker fixed at 000° B.cause the fixed targets to remain fixed C.inhibit the detection of small targets D.make the identification of smaller targets difficult 92.It can be concluded that the instrument referred to in this passage is most likely a/an ______.A.ordinary radar
B.ARPA C.specially designed radar
D.radar which is out of order
第二篇：2009年第5期海船船员适任统考试题
中华人民共和国海事局
2009年第5期海船船员适任统考试题（总第48期）
科目：航海学试卷代号：913 适用对象：无限航区3000总吨及以上船舶二／三副
（本试卷卷面总分100分，及格分为70分，考试时间100分
钟）
答题说明：本试卷试题均为单项选择题、请选择一个最合适的答案，并将该答案按答题卡要求在其相应位置上用2B铅笔涂黑。每题1分，共100分。1．航海上为了简化计算，通常将地球当作：
A．圆球体 B．椭圆体 C．椭球体 D．不规则几何体
2.某船由30°S，60ºW航行至30ºN，120ºW，则该船经差和纬差的方向分别为___________。A．E 经差、N 纬差 B．W 经差，S 纬差 CE 经差、S 纬差 D．W 经差、N 纬差
3.从海图上查得GPS 船位修正的说明中有“Latitude 2.’10NorthwarD．Longitude 1.’4 Westward”字样。GPS 的经、纬度读数为：30º40.’2S，15º12.’5W。则用于海图上定位的数据应为：
A．30º41.’3S，15º12.’9W B．30º39.’2S，15º12V3W C．30º38.’1S，15º13.’9W D．30º40.’0S，15º11.’5W 4.半圆方向120ºSE 换算成圆周方向为________ A．030º B．060º C．120º D．150º
5．某船真航向060º，该船右正横某物标的真方位为________ A．150º B．330º C．090º D．060º
6.某轮陀罗航向300º，陀罗差2ºE，则左正横处物标的陀螺方位是______________ A．210º B．208º C．212º D．270º
7.某地磁差资料为：Var.0º40’E（1979），increase about2.’5annually，则该地1999 年的磁差为_______ A．1º30’E B．1º05’’E C．0º15’E D．0º10’W 8.某轮计程仪改正率为0.0％，无航行误差，则在44º14’S～44º14’N 范围内；无论航向是多少，实际船位永远比推算船位________（不考虑风流影响。）A．超前 B．落后 C．重合 D．无法确定
9.测者眼高为9m，物标高程为16m，则测者能见地平距离为________海里。A．6.27 B．8.36 C．14.63 D．6.67 10.英版海图和灯标表中所标射程仅与___________有关。A 测者眼高和灯塔灯高 B．灯塔灯高和灯光强度
C 灯光强度和气象能见度 D．灯塔灯高、灯光强度，地面曲率和地面蒙气差 11..相对计程仪显示的航程是_______ A 船舶在各种风流情况下的对水航程 B．船舶在各种风流情况下的对地航程 C 船舶在仅仅受到风的影响下的对水航程。D．船舶在仅仅受到流的影响下的对水航程 12..某船电磁计程仪指示的航速为12kn，计程仪改正率△L =0％，当时流速为3kn，试问顶 流时该船对水速度是 多少? A．15 kn B．12kn C．9kn D．3kn 13．某轮顶流航行，船速15 节，流速2 节，2 小时后相对计程仪读数差为28.’0，计程仪改正率-10％，则该轮对水航程为__________ A．25.’2 B．29.’2 C．21.’2 D．30.’8 14.下列哪个不是基准比例尺的取值方法：
A.图上某一点的局部比例尺 B.图上某经线的局部比例尺 C.图上某纬线的局部比例尺 D.图外某基准纬度的局部比例尺
15.平面投影又称方位投影，其中透视点在球心的心射投影在航海上主要被用来绘制 _ ______。A．半球星图 B．大圆海图 C．航路设计图 D．B+C 16..航向为270º时，恒向线与_______重合.A．格林子午线圈 B．子午线圈 C．赤道 D．等纬圈
17.在同一张墨卡托海图上，设1 855m 的地面长度的赤道图长为lcm，则在30º纬度线上，1 855m 地面长度的图长约为_________ A．lcm B．0.866cm C．1.155cm D．0.5cm 18.高斯投影仅适宜用来描绘轴子午线 的狭长地带。
A．经差大、纬差小 B．经差小、纬差大 C．经差大、纬差大 D．经差小、纬差小.19..海图图幅是指__________ A．海图图纸的尺寸 B．海图内廓界限尺寸 C．海图外廓界限尺寸 D．印刷海图的图版尺寸 20.海图上所标干出高度是指________ A．物标高出海底的高度 B．海图深度基准面以上的高度 C．平均海面以上的高度.D．平均大潮高潮面以上的高度 21.海图水面处带下划线的数字表示_________ A．干出高度 B．深度不准或采自旧水深资料或小比例尺图的水深
C．测到一定深度尚未着底的深度 D．实测水深或小比例尺海图上所标水深 22..海图图式“cS”表示该区地质为_______ A．软泥 B．粗沙 C．淤泥 D．岩石 23..暗礁是指______ A．平均大渐高潮时露出的孤立岩石 B．平均大潮高潮面下，深度基准面以上的孤立岩石 C．深度基准面适淹的礁石 D．深度基准面以下的孤立岩石 24.凡危险物外加点线圈者，表示__________。
A．对水面航行有碍的危险物
B．位置未经精确测量的危险物
C．危险物的位置有疑位
D．危险物的存在有疑位
25.英版海图图式中，缩写“Lt Ho”代表__________。
A．沉船
B．灯塔
C．大型助航浮标
D．深吃水航路 26.英版海图、图书代销店负责其所销售________ A．海图的永久性通告的改正 B．海图的所有通告的改正 C．所有图书资料的改正 D．海图和灯标表的改正 27.要了解某张海图的现行版日期时町查阅________ Ⅰ、航海图书总目录；Ⅱ、英版航海通告累积表；Ⅲ、英版航海通告摘要；Ⅳ、季 末版航海通告 A．Ⅰ、Ⅱ B．Ⅱ、III C．Ⅲ、IV D．以上都是 28.光栅海图由纸质海图经数字化处理形成，下列有关光栅海图的说法何者正确? A．使用时可任意放大或缩小.B．受显示器性能影响，无法任意缩放 C．受原图比例尺所限，不能任意放大 D．受原图图幅所限，无法任意放大 29.我国海图作业规则规定，海图作业时，应在计划航线（推算航线）上标注下列哪些内容？ I、计划（推算）航迹向；II、罗航向；III、罗经差；IV、风流压差；V、船位差；VI、风流资料 A．I~III B．I~IV C．I~V D．I~VI 30.偏荡可能使风压差________。
A．增大 B．减小 C．有时增大有时减小 D．既不增大也不减小 31.若航向误差为1°，当航行50海里后船位偏移量为__________。
A．0.87海里
B．1.7海里
C．7／2海
D．3／4海里
32.把一定时间内测得的几个观测船位，用平差的方法以直线“连接”。该直线的方向与真航向之差即为风流压差，这种测定风流压差的方法为：
A．连续定位法 B．叠标导航法 C．雷达观测法 D．物标最小距离方位与正横方位法 33.用雷达观测法实测风流压差，调整电子方位线与固定弧立物标相对运动轨迹平行，如
电子方位线偏在航向线右面5º，罗经差2ºE，则实测风流压差为： A．+5º B．-5º C．+3º D．-3º
34.某轮陀罗航向030º，航行中用雷达测得物标距离最近时的陀罗方位为117º，陀罗差2ºW，则实测风流压差为： A．+3º B．-3º C．+5º D．-5º 35.中分纬度是：
A．平均纬度 B．东西距与经差的比值 C．起航点与到达点子午线之间等纬圈等于东西距的纬度 D．起航点与到达点的平均纬度 36.某轮从（10º30’N、115º30’E）航行到（20º30’N、130º30’E），则应驶的恒向线航向为：A．124º.7 B．235º.3 C．304º.7 D．055º.3 37.在海图对景图下标有“方位090º，14n mile”，表明对景图上的山形是： A．从该物标的正东14 海里向东所看到的形状 B．从该物标的正西14 海里向东所看到的形状 C．从该物标正东14 海里向西所看到的形状 D．从该物标正西14 海里向西所看到的形状
38.某船在航行中用六分仪观测未知高度的物标垂直角α=45′，用雷达测得船与物标的水平距离是12海里，则未知物标的高度应为多少？
A.281m B.291m C.295m D.300m 39.夜间利用两方位进行定位时，应先测：
A．闪光灯 B．定光灯 C．红光灯 D．绿光灯 40.在下列定位法中，一般最准确的方法是：
A．两物标方位定位B．单物标方位距离定位C．三物标方位定位D．两物标距离定位 41.特殊方位移线定位属于：
A．方位定位 B．距离定位 C．方位距离定位 D．A．B 都对 42.以两天极为起止点且通过格林天底的半个大圆称：
A．测者子圈 B．测者午圈 C．格林子圈 D．格林午圈 43.天体半圆方位是从 起算。
A．北点 B．南点 C．东点 D．A 或B
44.在周日视运动中，当天体赤纬Dec>90°-，且Dec 与 同名，则该天体：
A．永不升出 B．永不降没 C．升出时间大于降没时间 D．降没时间大于升出时间 45.春分点和秋分点是：
A．天赤道与真地平圈的两交点 B．天赤道与测者子午圈的两交点 C．黄道与白道的两交点 D．黄道与天赤道的两交点 46.“春季星空”是以赤经等于 为中心线展开的星空。A．0 º B．90 º C．180 º D．270 º
47.一个恒星日与一个太阳日的长短不一致的主要原因是：
A．地球自转 B．地球自转的速度不均匀 C．地球公转 D．地球公转的速度不均匀 48.天文航海所采用的对时信号是：
A．UT0 B．UT1 C．UT2 D．UTC 49..船舶由西向东过日界线，船钟应： A．不拨 B．拨快1 小时 C．拨慢1 小时 D．拨至和世界时一致 50.月赤纬等于0°时的潮汐特征为：
A．相邻的两个高潮潮高相等 B．涨落潮时间相等 C．相邻的两个低潮潮高相等 D．以上三者都对 51.当潮汐为回归潮时，潮汐现象表现为：
A．周日不等最显著 B．周日不等最小 C．半日不等现象最显著 D．半日不等现象最小 52.以下哪种不属于中版潮汐表内容？
A．主港潮汐预报表 B．潮流预报表 C．调和常数表 D．差比数和潮信表
53.在利用中版《潮汐表》第一册求某附港潮汐时，已知主、附港的平均海面季节改正分 别是23cm 和35cm，求附港潮高应用： A．附港潮高=主港潮高潮差比+改正值
B．附港潮高=主港潮高潮差比+改正数+潮高季节改正数
C．附港潮高=[主港潮高-（主港平均海面+主港平均海面季节改正）] 潮差比+（附港平均海面+附港平均海面季节改正）D．以上均不能用
54.我国某地的大潮升为4.5 米，小潮升为3.1 米，平均海面2.5m。则初三的低潮潮高约为： A．1.4 米 B．0.5 米 C．1.9 米 D．2.0 米
55.利用英版《潮汐表》求某附港潮汐，可首先从 查该附港的编号，然后根据 编号在潮时凑巧民潮高差表中查得所需资料。
A ．主港索引 B．目录 C．地理索引 D．辅助用表 56.已知主港高潮时为0913，且主附港时差资料为
Time Difference High Water Low Water 0000 0600 0000 0600 主港 and and and and 1200 1800 1200 1800 附港潮时差-0030-0050-0020-0015 则对应该主港高潮时的附港潮时差为：
A．-0018 B．0018 C．-0039 D．0039 57..英版《潮汐表》的“潮流预报表”中，往复流给出。I、转流时间；II、最 大流速；III、最大流速时间；IV、流向；V、预报位置；VI、包括海流
A．I~V B．I~VI C．I~III D．I~III，V 58.半日潮港，涨潮箭矢上标注4kn，则该处小潮日涨潮流第二小时内的平均流速为： A．2/3kn B．4/3kn C．8/3kn D．2kn 59.航标的主要作用是：I、指示航道；II、供船舶定位；III、标示危险区；IV、供特殊需要 A．I、II B．II、III C．III、IV D．I~IV 60.菲律宾沿海右侧标的顶标特征为：
A．红色罐形 B．红色锥形 C．绿色罐形 D．绿色锥形
61.IALA 浮标制度A 区域中，红色中间有一道绿色横纹的浮标可配备：
A．单个红色罐形顶 B．单个红色锥形顶标 C．单个绿色罐形顶标 D．单个绿色锥形顶标 62.在平面心射投影图上，连接出发点与到达点之间的直线为： A．等角航线 B．恒向线 C．大圆航线 D．双曲线
63.在南半球，若两点间的大圆始航向为045 º，则恒向线航向： A．大于045 º B．等于045 º C．小于045 º D．不一定 64.某船由32 º02’S，115 º10’E 航行到6 º39’N，79 º30’E，则相应的大圆航程为： A．3089 n mile B．3210 n mile C．3189 n mile D．3310 n mile 65.下列有关航线选择的说法中，何种正确？
A．航程最短，不一定航时最省 B．应尽可能使船舶一路顺风 C．充分考虑流的顺逆，可不考虑风的情况 D．应尽可能使船舶一路顺流
66.某轮燃油储备980t，以23kn 速度航行3000n mile 后还剩燃油600t，如要求再航行1200nmile 后还剩燃油500t，则该轮应采用多大速度航行？ A．21kn B．20kn C．18.7kn D．17.3kn 67.船舶在冰区航行，螺旋桨在下列哪种情况下，对船舶航行安全较为有利？ A．螺旋桨2/3 没在水中 B．螺旋桨1/3 没在水中 C．螺旋桨尽可能没在水中 D．螺旋桨1/2 没在水中 68.拟定航线的依据是：
A．现行版航海图书资料 B．水文气象条件 C．本船技术状态 D．以上都是
69.拟定沿岸航线，确定航线离危险物的安全距离时，应考虑下列哪项因素？I、风流对航 行的影响；II、船员技术水平；III、有无避险物标；IV、危险物的测量精度 A．I~II B．I~III C．I~IV D．I、II、IV 70.单一船位线与计划航线平行时，一般可用来判断：
A．推算船位偏离航线的误差 B．推算航程的误差 C．推算船位的误差 D．观测船位的误差
71.利用浮标导航，两浮标间距离为5 n mile，当第一浮标位于船舶正横时测得下一浮标舷 角为2º，则船舶通过下一浮标时，该浮标正横距离为： A．1.75 链 B．1.25 链 C．1.88 链 D．2.29 链
72..某轮在狭水道航行，计划航向100º，选择航线正后方某单一物标进行导标方位导航，如航行中实测该导标罗方位278º，该轮磁差4ºE，自差2ºW，则该轮应： A．向左调整航向 B．向右调整航向 C．保持原航向 D．无法确定 73.利用平行方位线转向，自转向物标所作为的方位线应：
A．与原计划航线垂直B．与新计划航线垂直C．与原计划航行平行D．与新计划航线平行 74.采用方位避险，如所选避险物标和危险物同在航线右侧，且避险物位于危险物前方，避险方位为060º，陀罗经2ºW，则在下列哪种情况下表明船舶不存在航行危险？
A．实测陀罗方位060º B．实测陀罗方位058º C．实测真方位062º D．以上都不存在危险 75.岛礁区航行，利用物标“开门”和“关门”的方法转向、避险，其实质是利用 来 转向避险。
A．方位位置线 B．方位叠标位置线 C．距离位置线 D．距离叠标位置线
76.我国船舶交通管理系统安全监督管理的主管机关是：A、国家海事局
B、地方港务局
C、国家海洋局
D、交通部
77.罗兰C 脉冲组中8 个脉冲的包络与载波初相之间的关系，按规定顺序变化的编码称为 A.相位编码 B.保密编码 C.时间编码 D.副台延时 78.GPS卫星导航系统中所使用的P码是__________的伪随机码。
A．快速、短周期 B．低速、短周期 C．低速、长周期 D．快速、长周期 79.在GPS卫星导航系统中，多径效应属于__________。
A．几何误差 B．信号传播误差 C．卫星误差 D．卫星导航仪误差 80.GPS卫星导航定位是显示2D字符表示：
A 二维定位
B 三维定位
C 差分GPS二维定位
D 差分GPS三维定位
81.船载AIS按照自身程序发送其船舶信息，自动解决与其他船冲突问题，适用于所有海域的工作模式称为：自主连续模式
指定模式 查询模式
A 1
B 2
C 3
D 2 3 82.对雷达波反射性能较好的物标形状为-------。
A平板形物体 Ｂ角反射器 C 球形物体 D 圆柱形物体
83.远处小岛上有两个横向分布的陡峰，间距为1海里，海面以上高度均为36米，本船雷 达天线海面以上高度为16米，本船驶近该岛_______海里内时，小岛回波将成为一个回波 A.6 B.8 C.16 D.20 84.雷达使用圆极化天线后可以 ______ A.抑制雨雪干扰 B.可能丢失对称体物标回波 C.探测能力下降约50% D.以上均对
85.雷达荧光屏上的间接反射回波通常出现在______ A.阴影扇形内 B.船首标志线上 C.船尾线方向上 D.盲区内 86.改变量程段时，雷达荧光屏上二次扫描回波将--------。
A 方位改变 B 距离改变 C 改变在屏上的位置，但测得的距离不变 D A+B 87.为减小雷达测距船位误差，在测量远处山峰回波时，应该----------。
A 用VRM 内缘与回波内缘相切 Ｂ用VRM 外缘与回波外缘相切 C 用VRM 内缘与回波外缘相切 D 用VRM 外缘与回波内缘相切
88.雷达测量横向的岬角、突堤方位时，应该将方位标尺线压住______。Ⅰ、回波边缘，读数减去角向肥大值；Ⅱ、中心；Ⅲ、回波边缘，读数加上角向肥大值 A.Ⅰ、Ⅱ B.Ⅰ、Ⅱ、Ⅲ C.Ⅱ、Ⅲ D.Ⅰ、Ⅲ
89.对雷达波反射性能较强的物质是---------。
A 海水 Ｂ冰块 C 岩石 Ｄ金属板 90.搜救雷达应答器----时发射信号。
A 由人工或自动启动后 B 抛入水中后 C 收到雷达脉冲激发后 D A+C 91.电磁计程仪的传感器所输出的电信号与船舶相对于水的速度成。A．指数关系 B．对数关系 C．正比关系 D．反比关系
92.声相关计程仪的设计跟踪深度为200米，若航行区域的水深50米，则该计程仪所测得的速度为________。A．绝对速度 B．相对速度 C．相对速度或绝对速度 D．零
93.船用回声测深仪在富裕水深不太大的情况下，测得的水深往往是———到船底的水深 A.海底淤泥层 B.海底混响层 C.海底硬土层 D.海底深处岩石层 94.磁罗经磁矩减小将引起________。
A．停滞角加大，摆动周期减小B．停滞角减小，摆动周期加长 C．停滞角加大，摆动周期加长D．停滞角减小，摆动周期减小 95.磁罗经白差随航向变化的原因是________。
A．观测不准确 B．磁罗经结构有缺陷
C．船所在地区有磁场异常现象 D．各种自差力与罗经航向有不同的函数关系 96.要完成指向功能，陀螺罗经的灵敏部分通常由________组成。
A．陀螺仪 B．陀螺仪的控制设备 C．陀螺仪的阻尼设备 D．A+B+C 97.陀螺罗经的基线误差是指罗经基线与船首尾线_____，而由此产生____的误差。
A．平行，偏离真北 B．不平行，偏离真北 C．平行，指向 D．不平行，指向 98.在船舶纬度和速度变化_______范围时，应重新调整罗经的纬度误差和速度误 差旋钮。
A．根据船舶的瞬时纬度和航速进行校正 B．每当纬度变化1°，航速变化l节校正一次 C．每当纬度至多变化5°，航速至多变化5节校正一次D．对纬度和航速的变化无具体要求 99.海图上两叠标线标注的方位为168 º，当船舶发现两叠标重合时，用标准罗经测前叠标的真方位170 º，那么罗经差为：
A +1 º B –1 º C + 2 º D –2 º
100.观测低高度太阳方位求罗经差，《太阳方位表》的查表引数是________ A.纬度，赤纬，视时 B.纬度，赤纬，世界时
C.纬度，赤纬，平时 D.纬度，半圆地方时角，赤纬
第三篇：航海英语50期海船船员适任统考试题（精选）
航海英语50期
1,[2286]Some of these shoals have been disproved and are not charted．Nevertheless mariners should ______ with particular caution in this area．
A.go
B.proceed
C.move
D.remove
KEY: B 2,[136]Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? A.List of Lights B.Coast Pilot C.Sailing Directions
D.List of Radiobeacons
KEY: A 3[247]A red triangular daymark marks ______.A.the centerline of a navigable channel
B.the starboard side of a channel C.a prominent object of navigational interest that has no lateral significance D.an area of a channel where passing another vessel is permitted
KEY: B 4[293]What information is found in the chart title? A.Date of the first edition
B.Date of the edition and，if applicable，the revision C.Information on the sounding datum D.Information on which IALA buoyage system applies
KEY: C 5[284]The maximum difference between mean time and apparent time is ______.A.equal to the longitude expressed in time units
B.about 16 minutes
C.the difference between the GHA of mean sun and the first point of Aries D.15°of arc
KEY: B 6[279]The chart of a beach area shows a very flat slope to the underwaterbeach bottom.What type of breakers can be expected when trying to land aboat on this beach? A.Surging
B.Spilling
C.Plunging
D.Converging
KEY: B 7,the broken magenta lines starting at Mountank point and running generally ENE to Bloci Island indicate ________ A recommended tracks to Block Island
B a submerged cable area
C a military exercise area
D demarcation lines for application of the COLREGS 8 navigate with ____ small fishing boats are within 0.8miles of me A carefulil
B skill
C concern
D caution
9[469]Mariners are FIRST warned of serious defects or important changes toaids to navigation by means of ______.A.marine broadcast Notice to Mariners B.Weekly Notices to Mariners C.corrected editions of charts
D.Light Lists
KEY: A 10[353]All events relating to the voyage，such as ship's position，speed and details of the weather，are recorded in ______.同原题库2246 A.Logbook
B.Bell Book
C.Oil Record Book
D.Compass Error Book KEY: A所有与航次有关的事件，诸如船位，航速和气象的详细资料都被记录在航海日记中。
11[377]Prior to burning or welding on a fuel tank on a ship, regulations require that an inspection
be made.An entry in the unofficial logbook is required if this inspection is made by ______.A.a marine chemist
B.the Officer in Charge, Marine Inspection C.the Master or person in charge of the ship
D.the National Fire Protection Association KEY: C在船上燃油舱烧焊之前，规则要求进行检查。假如检查由船长或船舶负责的人员完成，则要求记录非正式航海日志
12[622]I have ______ damage below water line.同原题库0327 A.large B.big C.important D.major
KEY: D我船水线下有较大的损坏。
13_____ the torn bags of castor seeds you mentioned we have already replaced them by new ones.A regard B regards C regarded
D regarding 14who checks the bridge clokc for accuracy each day? A third officer
B second officer
C chief officer
D assistant officer 15 Which signal of the follwings is not provided with onboard lifeboat? A.Rocket parachute signals
B.Buoyant smoke signals
C.Hand flare signals
D.Self-igniting signals 答案：D下列哪种信号在救生艇上不配备？自动点火信号 16[5405]A qualified deck officer should be ______ the watch．
A.in charge of B.arranged C.decided to D.the depth of
KEY: A 17.Emergency compressed air breathing escape sets onboard, shall have a duration of service no less than _____.A.20 minutes B.15 minutes C.10 minutes D.5 minutes答案：B船上应急压缩空气呼吸逃生装置使用时间不少于15分钟
18114.According to SOLAS the breathing air apparatus that must be onboard shall have sufficient capacity for how many minutes of operation?
A.20
B.30
C.45
D.60 答案：B根据SOLAS公约，船上必须配备的呼吸器装置应该有足够的能力支持多少分钟？ 19 127.Where should you record the crude oil washing after completion? A.Oil Record Book B.Cow manual C.Pumping Log D.Inter plant manual答案：A完成原油洗舱后你需要记录什么？油料记录簿 83.Shipboard Emergency Drills must be carried out at least_____? A.Once every third year B.Once a month C.Once a year D.Once a week 答案：B船舷应急计划必须执行至少每一个月一次
21,In anchoring orders , UP AND DOWN means____(老题库上的题)A the chain is not upright
B the chain is tight C the chain is upright
D the chain is slack 22 it is all right to rig the pilot ladder on lee side_____ A to allow port Authorities to board B allowing port Authorities to board C to allow port Authorities boarding D allowing port Authorities to be boarded 23[4777]A spring line is ______.A.any wire rope used for mooring B.a fire-warp C.a mooring line running diagonally to the keel
D.a mooring line perpendicular to the keel
KEY: C 24[1317] Vessel towing with the current shall ____ tow more than two boats and they must be towed
alongside.A.at times
B.at any time
C.at no time
D.at moment 25[1868] Your ship is steaming at night with the gyropilot engaged.You notice that the vessel’s course is slowly changing to the right.Which action should you take FIRST?______.A.Notify the engine room of the steering malfunction.B.Change to hand steering.C.Call the Master
D.Send the Quartermaster to the emergency steering station.26when you are steering on a pair of range lights and find the upper light is in line above the lower light ,you should _____ A continue on the present course B come left C come right
D wait until the lights are no longer in a vertical line 27[1685] Which vessel is underway according to the Rules?______ A.A vessel made fast to a single point mooring buoy
B.A purse seiner hauling her nets C.A pilot vessel at anchor
D.A vessel which has run aground 28[2458]A vessel is in sight of another vessel when ______.A.she can be observed by radar
B.she can be observed visually from the other vessel C.she can be plotted on radar well enough to determine her heading D.her fog signal can be heard
KEY: B 29 0365 Every vessel shall at all times maintain a proper lookout ______.A.By sight.B.By sight and hearing.C.By sight and hearing as well as by all available means appropriate to the prevailing circumstances.D.By sight and hearing as well as by all available means except smelling.KEY：C每一船舶应一直通过视觉，听觉和一切适用于当时环境的适合手段保持适当的了望。(老题库)30[1475] When is a stand-on vessel FIRST allowed by the Rules to take action in order to avoid collision? A.When the two vessels are less than half a mile from each other.B.When the give-way vessel is not taking appropriate action to avoid collision.C.When collision is imminent.D.The stand-on vessel is never allowed to take action.31[210]A light signal consisting of three flashes means ______.A.I am in doubt as to your actions
B.My engines are full speed astern C.I desire to overtake you
D.I am operating astern propulsion
KEY: D 32[2703]______ means the curve on the earth's surface which cuts all the meridians at the same angle．
A.Great Circle B.Position Line C.Rhumb line D.True Bearing
KEY: C 33[1749]Which word indicates color variation in the characteristics of a light? A.Opposing B.Changing C.Reversing
D.Alternating---交替的，交流的，互光的，互光（指周期性变色的航标灯）
KEY: D哪一个词说明灯光特性中的颜色变化？互光 34[2674]A SEAMARK，I.E.A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G.A WRECK is ______.A.Entrance buoy
B.New buoy C.Port buoy D.Cardinal buoy
KEY: D
35[821] Mean high water is the average height of ______ A.the higher high waters B.the lower high waters C.the lower of the two daily tides D.all high waters 36[149]The meaning of ebb tide is that ______.A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level
KEY: A 37[5569]After transferring a weight forward on a vessel，the draft at the center of flotation will ______.A.change，depending on the location of the LCG
B.increase C.decrease D.remain constant
KEY: D 38[5575]If the buoyant force on a ship's hull is equal to the displacement tonnage，the ship will ______.A.require ballast
B.be down by the head C.sink D.float
KEY: D 39[5588]Reducing the liquid free surfaces in a vessel reduces the ______.A.roll period B.metacentric height
C.waterplane area D.vessel's draft
KEY: A 40 2116 How should you signal the crane operator to raise the boom?(老题库)A.Extend arm with the thumb pointing up and flex the fingers in and out.B.Place both fists in front of the body with the thumbs pointing upward.C.With forearm vertical and forefinger pointing up, move hand in small horizontal circles.D.Extend arm with fingers closed and point thumb upward.(D你应怎样指挥起货机手提升吊杆？伸开臂膀手指握紧拇指向上)41 71.Where is the draft largest when the ship has an aft trim?
A.Forward
B.Aft
C.Midships
D.The drafts are equal all over the ship 答案：B当船舶尾倾时最大吃水在哪里？船尾
[3207]Filler cargo refers to ______.A.durable packages
B.small pieces C.the cargo in which the voids appear D.the cargo suitable for stowage in void spaces
KEY: D 43[3221]Strong smelling cargo should be stowed ______ the cargo absorbing foreign smell．
A.together with B.on top of C.underneath D.away from
KEY: D 44[4388]The damaged cargo is not allowed to export without ______.A.repairing or replacing
B.to repair or to replace C.being repaired or replaced
D.to be repaired or replaced
KEY: C 45[4028]The Agent promised to keep me ______ of how our business was going on．
A.to be informed B.informed C.on informing D.informing
KEY: B 461993 The man directing and supervising the work of stevedores is the ______.(老题库)
A.Local agent.B.Watchman.C.Docker.D.Foreman.指导和监督码头工人工作的人是工头。
471267 The tropical cyclone eastly 10 knots and expected ______ from 120000 GMT.A.Falling down.B.Fixing up.C.Filling up.D.Dropping down.热带气旋以10节的速度向偏东方向移动并预计自世界时12日0000起开始填塞。
48[1292] TYPHOON FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG17 KNOTS NEXT 12 HOURS.The movement of the Typhoon is in ______ quadrant.A.NE
B.SE
C.NW
D.SW 49[2820]Swell is the rise and fall of the ocean's surface due to ______.A.fetch B.distant winds C.local storms D.the pull of the moon
KEY: B 50[331]Fog is most commonly associated with a(n)______.A.warm front at night B.low pressure area C.anticyclone D.lack of frontal activity
KEY: A 51[3422]In most cases，the direction of the apparent wind lies between the bowand ______.A.the direction of the true wind B.true north C.the beam on the windward side D.the beam on the lee side
KEY: A 52[3479]The inner bottom is the ______.A.tank top
B.compartment between the tank top and shell of the vessel C.inner side of the vessel's shell
D.space between two transverse bottom frames
KEY: A 53______ is halfway between the forward and after perpendiculars and is reference point for vessel construction
A half length B mid_body C center line D amidships 54119.Watertight compartments are separated by _____.A.Longitudinal bulkheadB.Tween decks C.Dunnages D.Decks and bulkheads
答案：D水密舱被垫板分开
55[823]The material used extensively as electrolytic protection around bronze propellers is ______.A.Brass B.Copper C.Lead D.Zinc
KEY: D 56[3560]Before starting any diesel or gasoline engine，which of the followingmust be checked? A.Oil level B.Flow of cooling water C.Exhaust discharge D.All of the above
KEY: A 57[5295]The holding capability of an anchor is primarily determined by the ______.A.shape of the anchor
B.stowage of the anchor on board C.anchor's ability to dig in D.size of the vessel and its draft
KEY: C 58.A Racon can help with __? A.measuring the distance B.measuring the relative C.identifying centimeters D.identifying a seamark
59.[3872]The radio waves used for radar are very short，only ______ long．
A.a few centimeters B.a few fathoms C.a few meters D.a few feet
KEY: A 60.103.What type of radar can activate a racon? A.X-band radar B.S-band radar C.C-band radar D.No radar can答案：A什么类型的雷达能激活雷达信标？X波段的雷达
61.[3910]Magnetic variation changes with a change in ______.A.the vessel's heading B.sea conditions C.seasons D.the vessel's position
KEY: D 62.[3818]Deviation is the angle between the ______.A.true meridian and the axis of the compass card B.true meridian and the magnetic meridian C.magnetic meridian and the axis of the compass cardD.axis of the compass card and the degaussing meridian
KEY: C
63.[15]Which one of the followings is incorrect about magnetic compass? A.The magentic compass is compulsory on my vessel
B.The magentic compass is prone to error C.The magentic compass is always placed inside steel constructions
D.The magentic compass needs to be calibrated to compensate for local magnetic distortion 答案：C关于磁罗经下面哪项是不正确的？磁罗经总是放在刚性结构里面
64.With respect to automatic identification systems(AIS)which of the following information is broadcast every one to ten seconds?A.Vessel’s draft B.Air Draft C.Navigational status D.Dimensions of vessel
65.123.In case of AIS overload, what can you expect? A.AIS will shut down B.AIS will “freeze” C.Largest far away drop out D.Closes targets drop out 答案：C如果AIS超负荷，你能预料到什么？最大远离到退出 66.[17]What may affect the accuracy of sounding with echo sounder? A.Sea bottom B.Ship's speed C.Speed of current D.Water temperature and density 答案：D什么会影响回声探测仪的精度？水的温度和密度
67.[1625] Which piece of required GMDSS equipment is the primary source of transmitting locating signals? A.Radio Direction Finder
B.An EPIRB transmitting on 406 MHz C.Survival Craft Transceiver
D.A SART transmitting on 406 MHz 68.[588] How can the SART’s audible tone monitor be used?______.A.It informs survivors that assistance may be nearby.B.It informs survivors when the battery’s charge condition has weakened.C.It informs survivors when the SART switches to the standby mode.D.It informs survivors that a nearby vessel is signaling on DSC.69.[180]The pilot {embarked} the ship at 1830 hours． A.boarded B.left C.piloted D.loaded
KEY: A 70.[4194]There is a drifting mine ______ in position 21 degrees 31 minutes North 124 degrees 20 minutes East． A.report B.reports C.reported D.reporting
KEY: C 71.[904] Please tell me ______ to reverse your engine from full ahead to full astern.A.how length will it take B.how long it will take C.how long will it get D.how much hours it will take 72.89.What is the meaning of the word “ROGER” when used in radio communication?
A.Please repeat your message B.Not readable C.Correct D.I have received your transmission satisfactorily
答案：D当使用无线电通信的时候单词“明白了”是什么意思？我已经满意的收到了你的传送
73.[4403]A bollard is found on the ______.A.beach B.Deck C.Pier D.towed vessel
KEY: C 74.[4470]The heel block is located ______.A.at the base of the boom B.at the cargo hook C.near the midships guy D.near the spider band
KEY: A 75.[594] How is the size of chain determined?______.A.Length of link in inches
B.Diameter of metal in link in inches or centimeters C.Links per fathom
D.Weight of stud cable in pounds 76.[226]A mooring line leading 45° to the keel，used to check forward or astern movement of a vessel，is called a ______.A.spring line B.warp line C.bow line D.breast line
KEY: A 77.[4529]Vessel's provisions refer to ______ of the vessel．
A.fuel oil B.vegetables and food C.spare parts on board D.ballast water
KEY: B 78.[5656]A continuous sounding of a fog-signal apparatus indicates ______.A.the vessel is in distress B.the vessel has completed loading dangerous cargo C.it is safe to pass
D.the vessel is anchored
KEY: A 79.[1752]Instructions on how to conduct search and rescue are given in the ______ which is primarily designed for use by merchant ship.同原题库3240 A.MARPOL---Marine Pollution B.IRPCS---International Regulations for Prevention of Collisions at Sea C.SOLAS---Safety Of Life At Sea D.MERSAR---Merchant Ships Search And Rescue KEY: D主要被设计用于商船的MERSAR上给出了如何指挥搜索和救助的指导。80.[308] After using a CO2 portable extinguisher, it should be ______ A.put back in service if some CO2 remains B.hydrostatically tested
C.retagged
D.recharged 81.[5803]A ROUND THROUGH THE VESSEL CARRIED OUT BY A CREW MEMBER OF THE WATCHAT CERTAIN INTERVALS SO THAT AN OUTBREAK OF FIRE MAY BE PROMPTLY DETECTEDdefines ______.A.Fire patrol B.Fire control C.Smoke detection D.Fire drill
KEY: A
82.What is the meaning of UEL? A.Upper exposure level B.Upper explosion level C.Upper explosive level D.Upper evaporation level答案：C.UEL爆炸上限
83.[4379]Puncture leaks in the lower tubes or bottom of an inflatable liferaftshould FIRST be stopped by using ______.A.sealing clamps B.repair tape C.a tube patch D.sail twine and vulcanizing kit
KEY: A 84[5865]If help has not arrived in 10-12 hours after you abandon a vessel in a survival craft，you should ______.A.go in one direction until the fuel runs out
B.plot a course for the nearest land C.take a vote on which direction you should go D.shut down the engine(s)and set the sea anchor
KEY: D 85.90.What type of oil is most suitable for reducing the effect of heavy seas? A.Crude oil B.Fuel oil C.Vegetable oil D.Lubricating oil
答案：C哪种油最适合减小波涛汹涌的海面的作用？植物油
86When the ship causes oil pollution to the port,she will be______ A、find
B、levied
C、paid
D、deducted [87]In all but the most severe cases，bleeding from a wound should be controlled by _____A_.A.applying direct pressure to the wound B.submerging the wound in lukewarm water C.cooling the wound with ice
D.applying a tourniquet [88]A crew member suffering from hypothermia should be given ___B___.A.a small dose of alcohol B.treatment for shock C.a large meal D.a brisk rub down
一
BISCAY：SW 3 OR 4 INCREASING 6 TO GALE 8，THEN VEERING NW 5．RAIN THEN SHOWERS．MODERATE OR POOR BECOMING GOOD．FINISTERRE： WESTERLY 6，LOCALLY GALE 8，VEERING NW 5．RAIN THEN SHOWERS．MODERATE OR POOR BECOMING GOOD．EAST NORTHERN SECTION：W OR SW 6 TO GALE 8，BUT IN NORTH-EAST CYCLONIC 4 AT FIRST，AND IN NORTH-WEST SOUTHERLY 6 TO GALE 8 AT FIRST．WINTRY SHOWERS．MAINLY GOOD．WEST NORTHERN SECTION：IN NORTH，CYCLONIC 6 TO GALE 8，LOCALLY SEVERE GALE 9，BECOMING VARIABLE 3 OR 4．WINTRY SHOWERS．MAINLY GOOD．MODERATE ICING IN WEST AT FIRST WITH TEMPERATURE-2℃ TO-5℃．IN SOUTH WESTERLY 6 TO GALE 8，LOCALLY SEVERE GALE 9，BACKING SOUTHERLY AND INCREASING LOCALLY STORM 10 LATER．WINTRY SHOWERS THEN SNOW．MAINLY GOOD BECOMING MODERATE． [89].Backing means the wind ____B___．
A．is changing clockwise in direction
B．is changing anticlockwise in direction C．is changing cyclonically or variably in direction D．remains unchanged in direction at the time [90].The visibility in EAST NORTHERN section is mainly ___C____． A．poor
B．moderate
C．GOOD
D．very GOOD [91].In north part of WEST NORTHERN section，the wind is ____A___． A．cyclonic 6 to gale 8 at first B．cyclonic 4 at first C．westly 6 to gale 8 D.variable 3 or 4 at first [92].This passage is likely to be under the heading of ____A____．
A．FORECAST
B．GALE WARNING C．SYNOPSIS
D．STORM WARNING
二
The Chief Officer，or First Mate as he is often called，is the Master's chief officer and head of the Deck Department．He is assisted by a Second Officer（Mate），a Third Officer（Mate），and sometimes a Fourth Officer（Mate）．Several companies employ a First Officer as well as a Chief Officer．The Deck Department also includes a Boatswain（Bosun）and a Carpenter，both petty officers，and a number of ratings．These made up of Able Seamen（AB），Ordinary Seamen（OS）and a middle grade known as Efficient Deck Hands（EDH）．There are other grades of seamen．On some ships Navigating Cadets are carried for training purposes．
The Chief Engineer is head of the Engine Department．He is assisted by a Second，Third，Fourth and sometimes Fifth Engineer．An Electrical Officer may also be carried．The engine room petty officers are the Storekeeper and Donkeyman．On tankers there is also a Pumpman．He is also a petty officer．The engine room ratings are Firemen and Greasers．There may also be Engineer Cadets．
The Catering Department is under the Chief Steward．It is divided into a saloon and galley section．The former is headed by the Second Steward，the latter by the Ship's Cook．They are both usually petty officers．They are assisted by several stewards and cooks，and by a number of junior ratings．
The Radio Department often consists of only one man：the Radio Officer．On ships where continuous radio watches are kept there may be three radio officers：a Chief，Second and Third． [93].____C____ is not a petty officer．
A．Boatswain
B．Second Steward C．Radio Officer
D．Storekeeper [94].EDH is rank which is higher than ____C____．
A．Second Steward
B．AB C．OS
D．Chief Engineer [95].Storekeeper belong to _____B___．
A．Deck Dept
B．Engine Dept C．Catering Dept
D．Radio Dept [96].There are _____D___ departments on bard a big ship according to the passage． A．two
B．three
C．four
D．five
第四篇：A航海英语49期海船船员适任统考试题
航海英语49期
1.You may find the time of slack water after low water in a certain port from ___B__ A.Deadweight scale B.Tide table C.Notice to mariners D.Table of azimuth 2.Many of the lights on this coast are placede so high as to be so frequently obscured by ___D_____ A.Power
B.Tower C.Cover D.Shower 3.A line of position from a celestial obsertion is a segment of a __A____ A.circle of equal altitude B.parallel of declination C.parallel of altitude D.vertical of circle 4.How long would 15 minutes of longitude be at a latitude of 60 degrees North?__D____ A.30nm B,60nm C.15nm D.7.5nm 5.The maximum difference between mean time and apparent time is ___B_____ A.equal to the longitude expressed in time units
B.about 16 minutes C.the difference between the GHA of mean sun and the first point of Aries D.15°of arc 6.The chart of a beach area shows a very flat slope to the underwater beach bottom.What type of breakers can be expected when trying to land a boat on this beach?
B A.Surging B.Spilling C.Plunging D.Converging 7.Which is a weekly publication advising mariners of important matters affecting navigational safety?
B A.Light List B.Notice to Mariners C.Coast Pilot D.Sailing Directions 8.Navigate with _D__.Small fishing boats are within 0.8 mile of me.A.crefull B.skill C.concern D.caution 9.The Admiralty Notices to Mariners can be obtained _A____ by Masters of vessels from any Admiralty Chart Agent． A.free of charge B.with no responsibility C.without limitations of distribution D.with little charges 10.The proper way to correct a mistake in the logbook is to __D__.A.erase the entry and rewrite B.draw several lines through the entry，rewrite，and initial the correction C.completely black out the entry，rewrite，and initial the correction D.draw one line through the entry，rewrite，and initial the correction 11.When a vessel is entering or leaving a port，a record of engine speeds is kept in the __A___.A.bell book B.deck rough log C.Official Logbook D.engine rough log 12.I’d like to know the full __B___ of the accident．
A.particular B.particulars C.in particular D.in particulars 13.The extent of the damage could not be __C___ though I inspected it with the Chief Stevedore in charge.A.sure B.contained C.ascertained D.applied 14.For whom is the ISM Code mandatory? A.All vessels 500 GRT and above B.All tankers C.All vessels built after 1998 D.All vessels on international routes
答案：A谁要强制执行国际安全管理规则？所有500总吨以上的船舶
15.That the __D___ showed that the ship complied with the requirements of the said Convention.A.looking B.seeing C.sightseeing D.inspection 16.If the officer of the watch must leave the voyage plan, he should _____? A.Make a note in the logbook B.Inform the mater C.No special action necessary
D.Check the new plan
答案:B值班驾驶员必须停止航行计划他应该报告船长
17.The Safety of Life at Sea Convention was developed by the ______.A.IMDG conference B.American Bureau of Shipping C.International Maritime Organization D.American Institute of Maritime Shipping 答案： C海上人命安全公约由国际海事组织提出。
18.The maneuvering information required to be posted in the wheelhouse must bu based on certain conditions.Which of the following is not one of these conditions?
D A.The hull must bu clean B.There must be calm weather-wind 10 knots or less and a calm sea C.There must be no current
D.The depth of the water mest be at least one and one—half times the draft
19.How to determine the density of the slop after tank washing? A.By use of an interferometer B.By use of a hydrometer C.By use of an interface D.By use of a thermometer
答案：B怎样判断洗舱后费油的密度？通过使用液体比重计
20.No oil or mixture containing oil __B___ into Singapore waters from any vessel．
A.shall not be discharged B.shall be discharged C.shall be filled D.shall not be filled 21.What is a CORRECT reply to a pilot’s request,“How’s your heading”? D A.Steady B.Eased to 10 rudder C.Checked D.Passing 50 22.The ideal rope for stoppers should satisfy the following requirements except that _____.A.The stopper should be of synthetic fibre rope B.The size of the stopper should be as large as possible C.The stopper should be of low stretch material
D.The stopper should be very flexible
答案：B阻挡器的理想的绳索需要满足以下要求中除了阻挡器的尺寸尽可能大 23.The best method to stop a vessel from dragging anchor in a sand bottom is to __B___.A.reduce the length of the cable B.pay out more anchor cable C.back the engines D.swing the rudder several times to work the anchor into the bottom 24.___B__ is prohibited in this area．
A.Anchor B.Anchoring C.Anchored D.Being anchored 25.A vessel fitted with twin screws is easier in _A____ than a vessel with single screw．
A.turning maneuver B.course setting C.position fixing D.regulating speed 26.If your propeller is racing in rough weather，you should __A___.A.decrease your engine speed B.ignore it C.increase your engine speedD.stop your engine until the rough weather passes 27.Which vessel is underway according to the Rules?___B__ A.A vessel made fast to a single point mooring buoy
B.A purse seiner hauling her nets C.A pilot vessel at anchor
D.A vessel which has run aground 28.All of the following are engaged in fishing EXCEPT __B___.A.A vessel trawling
B.A vessel trolling
C.A vessel setting nets D.A vessel tending lines．
29.Any alteration of course and/or speed to avoid collision shall，if the circumstances of the case admit，______ to another vessel observing visually or by radar.A.be large enough to be readily apparent
B.be a succession of small alterations C.be with due regard to the power and speed of the vessel D.leave sufficient room for the other vessel to take action KEY: A任何为避免碰撞的航向和/或航速的改变应，如环境许可，大的足以容易明显地被他船以视觉或雷达观测到.（为避免碰撞而作的航向和（或）航速的任何变动，如当时环境许可，应大得足以便他船用视觉或雷达观测时容易察觉到）
30.Two short blasts of the whistle have all of the following meanings EXCEPT ______.A.I intend to meet you starboard to starboard． B.I do not intend to hold course and speed．
C.I intend to overtake you on your port side． D.I intend to alter my course to port．
KEY: B 31.If your vessel is the stand-on vessel in a crossing situation __A___.A.you must keep your course and speed B.you may change course and speed as the other vessel must keep clear C.the other vessel must keep her course and speed
D.both vessels must keep their course and speed 32.You should plot your dead reckoning position _A____.A.from every fix or running fix
B.from every estimated position C.every three minutes in pilotage waters
D.only in pilotage waters 33.A buoy having red and green horizontal bands would have a light characteristic of ______.A.interrupted quick flashing B.composite group flashing C.Morse(A)D.quick flashing KEY: B具有红绿横纹的浮筒将具有组合闪光的灯光特性。
34.In region A, The green buoys are kept to_____and red to _____when sailing from____to____.A.starboard,port,sea,land
B.starboard,port,land,sea C.port,starboard,land,land
D.port,starboard,sea,sea 答案：A在侧面左手标，当从海上驶向岸时绿色浮标保持在右舷，红色在左舷 35.Spring tides are tides that ______.A.have lows lower than normal and highs higher than normal B.have lows higher than normal and highs lower than normal C.are unpredictable D.occur in the spring of the year
KEY: A 36.The movement of water away from the shore or downstream is called a(n)______
A.reversing current B.ebb current C.flood current D.slack current
KEY: B 37.A vessel is listed when it is ______.A.down by the head B.down by the stern C.inclined due to off-center weight D.inclined due to wind
KEY: C 38.Metacentric height is a measure of ______.A.initial stability only B.stability through all angles C.maximum righting arm D.All of the above
Key :A 39.The mean draft of a ship is the draft __A_____ A.Midway between the forwad and aft draft marks B.At the center of flotation C.At the loadline
D.At the center of buoyancy 40.Keeping the draft at or below the load line mark will insure that the vessel has adequate ______.A.ballast
B.reserve buoyancy
C.displacement
D.rolling periods
KEY: B 41.For a floating ship, ture mean draft is always the _____ A.average of the observed drafts
B.draft at the center of flotation C.draft corresponding to the calculated displament D.mean of the calculated draft
Key : B 42.We usually choose cargo—handling equipment according to _______? A.the ship type
B.the port’s organization
C.the cargo’ nature
D.the docker’s ability
Key:C 43.The necessity of the segregation of cargoes is determined by ______.A.experience from practice B.various types of cargoes C.different types of ships D.personal abilities
KEY: B 44.During loading or discharging，the tallymen must make contact with__B___on duty so as to solve problems in time． A．ship owner
B．ship’s officers
C．shippers
D．consignors 45.We’ll adopt the mechanical talling method _____.A.soon or late B.soon or later C.sooner or late
D.sooner or later
Key:D 46.Inflammble caigo _____in the holds adjacent to the angine room.A.shall never be stowed
B.may br stowed
C.can be stowed
D.should be stowed
Key;A 47.TYPHOON FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG 17 KNOTS NEXT 12 HOURS.The movement of the Typhoon is in __C_ quadrant.A.NE
B.SE
C.NW
D.SW 48.Hurricane warnings are issued ______ when winds of force 12 or above are expected． A.in all parts of the world
B.in some parts of the world
C.from all corners of the world
D.from every corner of the world
KEY: B 49.Swell is the rise and fall of the ocean's surface due to ______.A.fetch
B.distant winds
C.local storms
D.the pull of the moon
KEY: B 50.Monsoons(季风)characterized by ______.A.light，variable winds with little or no humidity B.strong，gusty winds that blow from the same general direction all year C.steady winds that reverse direction semiannuallyD.strong，cyclonic winds that change direction to conform to the passage of an extreme low pressure system
KEY: C 51.In most cases，the direction of the apparent wind lies between the bow and ______.A.the direction of the true wind B.true north C.the beam on the windward side D.the beam on the lee side KEY: A 52.Panting frames are located in the ______.A.after double bottoms B.centerline tanks on tankers C.fore and after peaks D.forward double bottoms
KEY: C 53.The collision bulkhead shall be of _A____.A.water-tight
B.air-tight
C.fire-tight
D.oil-tight 54.Which is the winter load waterline on the load waterline mark?__D___ A.The line over the summer load waterline B.The line above the tropical load waterline C.The line below the tropical load waterline D.The line between the summer and the winter North Atlantic load waterline 55.In relation to cargo gear，what does SWL mean? ______.A.Safe working load B.Ship's working lift C.Starboard wing lift D.Stress，weight，load
KEY: A 56.A chain stripper is used to ___A__.A.prevent chain from clinging to the wildcat
B.clean the marine debris from the chain C.flake chain from a boat’s chain locker
D.clean chain prior to an x-ray inspection
57.The primary reason for placing covers over storage batteries is to _D____.A.prevent the accumulation of explosive gases
B.protect the hull from leaking electrolyte C.prevent movement of the battery in rough waters D.protect against accidental shorting across terminal
58、Racon can help with ___A__? A..measuring the distance B.measuring the relative speed C.identifying a vessel D.identifying a seamark 59______is on the panel of radar.A.KEYLOCK B.REPEATER C.STATIC INVERTER D.ANT-CLUTTER-SEA 60.[708] In order to insure that a RACON signal is displayed on the radar, you should ______.A.increase the brilliance of the PPI scope
B.turn off the interference controls on the radar C.use the maximum available range setting
D.increase the radar signal output 61.Deviation changes with a change in __B___ A.vessel’s geographic position B.vessel’s heading
C.vessel’s magnetic field D.influence of the magnetic materials of the vessel 62.[1118]Deviation changes with a change in ______.A.latitude B.heading C.longitude D.sea conditions
KEY: B 63.[3805]______ the repeater compass with the master compass，please．
A.Similize B.Clock C.Synchronize D.Position
KEY: C 64.With respect to automatic identification systems(AIS)which of the fowllowing information is broadcast every one to ten seconds?
A.Vessel’s draft
B.Air Draft
C.Navigational status
D.Dimensions of vessel
65.Automatic identification systems(AIS)are expected to broadcast all of the following information EXCEPT ______.A.Port of origin B.Name of vessel C.Course and speed over ground D.Draft of vessel
KEY: A 66.[5264]All echo-sounders can measure the ______.A.actual depth of water
B.actual depth of water below keel C.average depth from waterline to hard bottom D.average depth of water to soft bottom
KEY: B 67.[1084] The maritime radio system consisting of a series of coast stations transmitting coastal warning is called ______.A.NAVTEK
B.HYDROLANT/HYDROPAC
C.NAVAREA
D.SAFESEA 68.[4317]What would most likely prevent a SART's signal from being detected? A.Signal absorption by the ionosphere
B.Heavy sea swells C.The rescue personnel were monitoring the 10-cm radar D.The rescue personnel were monitoring the 3-cm radar KEY: C 69.[764] International distress signal in VHF calling for help is _____.A.Help,Help,Help B.Maday,Maday,Maday C.Save,Save,Save D.Rescue,Rescue,Rescue 70.[4314]What is the MOST important thing you should do before transmitting on a marine radio? A.Ask for permission.B.Record the time in your radio log.C.Press the push to talk button three times.D.Monitor the channel to insure that it is clear.KEY: D 71.[4194]There is a drifting mine ______ in position 21 degrees 31 minutes North 124 degrees 20 minutes East． A.report B.reports
C.reported
D.reporting
KEY: C 72.[812]Get the searchlight ______ for transiting the canal at night.A.turned off B.already
C.almost
D.ready
KEY: D为夜间通过运河准备好探照灯。73.120.Cleaning, painting and repairing work is known as _____.A.Maintenance work B.Lashing work C.Tallying work D.Overtime work 答案：A清洁，油漆和修理工作叫做维修工作 74.[5266]An example of a messenger is a ______.A.fairlead B.heaving line
C.stay D.warp
KEY: B 75.Which type of line would have LEAST resistance to mildew and rot? A.Manila B.Nylon C.Dacron D.Polypropylene 76.[2414]A mooring line that checks forward motion of a vessel at a pier is a ______.A.bow line B.forward bow line C.stern line D.stern breast line
KEY: C 77What are the three bastic types of starters? A.Air,water,electric B.Air,hydraulic.electric C.Metered, hydraulic ,automatic D.Air,emergency, hydraulic 78 [6010]If you saw flames aboard a vessel but could see the vessel was not on fire，you would know that the ______.A.crew was trying to get warm B.vessel required immediate assistance
KEY: B C.vessel was attempting to attract the attention of a pilot boat D.vessel was being illuminated for identification by aircraft 7992.When is the parallel sweep search used? A.When searching a small area B.When searching a large area C.When searching over hilly terrain D.When searching during night
答案：B什么时候使用平行搜索？当在一个大的海域搜索时 80.[5827]Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge ______.A.only when fully loaded B.if one or more tanks are full C.when transferring cargo D.only when the barge is being towed
KEY: C 81.[1780] You are on watch at sea at night and a fire breaks out in 3 hold.What should be done IMMEDIATELY? A.Shut down the cargo hold ventilation.B.Proceed to the space and determine the extent of the fire.C.Flood the space with CO2 from the fixed fire fighting system.D.Cool the deck to contain the fire 82.What is the meaning of UEL? A.Upper exposure level B.Upper explosion level C.Upper explosive level D.Upper evaporation level
答案：C
83.[1603]A sea anchor is ______.同原题库2279 A.a heavy anchor with an extra long line used to anchor in deep water B.a cone shaped bag used to slow down the wind drift effect C.a pad eye to which the sea painter is made fast
D.made of wood if it is of an approved type KEY: B海锚是一个用于减少风致漂移影响的锥状袋子。
84.[5851]The line-throwing appliance provided on board ship is ______.A.for the saving of life B.for fire-fighting C.for mooring purpose D.for towing purpose
KEY: A 85.[733] In the first 24 hours after abondoning a vessel, water should be given only to personnel who are ______.A.thirsty
B.sick or injured
C.wet
D.awake 86.What does OBO mean?
A.Oil Bulk Oil B.Ore Bulk Oil C.Only Bulk Ore D.Only Basic Oil 答案：B.OBO的意思是什么？矿石/散货油 87.When chipping rust on a vessel,the MOST important piece of safety gear is____.A.a hard hat
B、gloves
C、goggles
D、a long sleeve shirt 88、You should FIRST treat a simple fracture by A、attempting to set the fracture
B、preventing her movement of the bone C、applying a tourniquet
D、alternately applying hot and cold compresses
（一）EGC Message----MET Navarea Warning or MET Forecast---Message Sequence No：00l03LES： KDDIPriority：UrgentSize：969charactersReceive Date 1 Time：07-09-18 06：56(UTC)PAN PANTHIS TROFICAL CYCLONE WARING IS ISSUED FOR THE NORTH OF EQUATOR OF METAREA XI(FOR)WARNING 180600WARFING VALID 190600WARNING IS UPDATED EVERY 6 HOURSTYPHOON WARNINGTYPHOON 0712 WIPHA(0712）930 HPAAT 25.7N 122.6E NORTHWEST OF ISHIGAKIJIMA MOVING NORTHWEST 16 KNOTSPOSITION GOODMAX WINDS 100 KNOTS NEAR CENTERRADIUS OF OVER 50 KNOT WINDS 90 MILESRADIUS OF OVER 30 KNOT WINDS 260 MILES NORTHEAST SEMICIRCLE AND 180 MILES ELSEWHEREFORCAST POSITION FOR 181800UTC AT 27,2N 120.8E WITH 60 MILES READIUS OF 70 PERCENT PROBABILITY CIRCLE950 HPA,MAX WINDS 85 KNOTS NEAR CENTERFORCAST POSITION FOT 190600UTC AT 29.7N 119.6E WITH 90 MILES READIUS OF 70 PERCENT PROBABILITY CIRCLE985 HPA,MAX WINDS 50 KNOTSEXTENDED OUTLOOKFORCAST POSITION FOR 200600UTC AT 37.ON 121.9E EITH 170 MILES READIUS OF 70 PENCENT PROBABILITY CIRCLE1000 HPA,MAX WINDS 35 KNOTBECOMING XTEROPICAL LOWJAPAN METEROLOGICAL AGENCY 89、Where is the message sent for? A、Japan B、Singapore C、Taiwan D、New Zealand 90、What os the priority of the message? A、Routine B、Securite C、Urgency D、Distress 91、The warning was issued at 180600 and will be first updated at A、190600 B、181256
C、180656
D、181200
92、Which of the following statements is true according to the warning? A、950 HPA located at 25.7N 122.6E,its maximum winds near centre reach 85 knots,and radius of over 30 knot winds 260 miles northeast semicircle B、930 HPA located at 25.7N 122.6E,its maximum winds near centre reach 100 knots, and radius of over 30 knot winds 260 miles northeast semicircle C、950 HPA located at 29.7N 119.6E,its maximum winds near centre reach 85 knots,and radius of over 30 knot winds 260 miles northeast semicircle D、930 HPA located at 29.7N 119.6E,its maximum winds near centre reach 100 knots, and radius of over 30 knot winds 260 miles northeast semicircle 二短距离通信
Communications over relatively short distances can be made by visual or sound signals.Visual signals can be sent by using flags or an Aldis lamp.An Aldis lamp is an electric lamp used for flashing messages in Morse code.The traditional method of signaling from one ship to another is by using flags.There are different colored flags for each letter of the alphabet.There are also pennant-shaped flags for numbers，and a long pennant，known as an answering or code pennant.Three other flags，which are burgee-shaped，are known as substitutes.These show that the flat or pennant is being repeated.Besides standing for a letter of the alphabet，each flag，when hoisted along，has another meaning.For example，the “W” flag also means: “I require medical assistance”.Flags can also be hoisted in combinations of two，three or four.Siren，whistle，bell or other sound signals can be used in fog and similar circumstances when visual signals can not be seen.[93]Communications over relatively short distances may be made by ________.通信相关的距离相当短，可以不是视觉就是声号。
A.visual signals B.sound signals C.Morse Code D.Either visual or sound signals
#D [94]An Aldis lamp is used for ________.一个手提闪光信号的被用在莫尔斯密码发送上。
A.transmitting Morse code B.flashing flags C.sending flag signals D.sending sound signals
#A [95]Burgee-shaped flags are used as substitutes to show ________.燕尾旗是用来代替显示 重复的
A.“repeating” B.“answering” C.“code” pennant D.“I requiring medical assistance”
#A [96]________ are used in fog and similar circumstances when visual signals can not be seen.这个船的汽笛，口哨或者钟是用在雾和类似环境当视觉不能看到时候。
A.Visual signals B.Substitutes C.Pennant-shaped flags D.The ship's siren，whistle or bell
#D
第五篇：2008年第6期海船船员适任统考试题
中华人民共和国海事局
2008年第6期海船船员适任统考试题（总第46期）
科目：航海学试卷代号：913．
适用对象：无限航区3000总吨及以上船舶二／三副
（本试卷卷面总分100分，及格分为70分，考试时间100分钟）
答题说明：本试卷试题均为单项选择题、请选择一个最合适的答案，并将该答案按答题卡要求在其相应位置上用2B铅笔涂黑。每题1分，共100分。
1．航海学中的地球形状用 来描述。
A.地球自然表面围成的几何体 B.大地球体 C.地球椭圆体 D.地球圆球体
2．某船由30ºS，60ºW航行至40ºS，120ºW，则该船经差和纬差的方向分别为：
A．E经差、N纬差 B．W经差、S纬差 C．E经差、S纬差 D．W经差、N纬差 3．下列哪项是建立大地坐标系时应明确的问题？Ⅰ、确定椭圆体的参数；Ⅱ、确定椭圆体中心的位置；Ⅲ、确定坐标轴的的方向
A．Ⅰ、Ⅱ B．Ⅰ、Ⅲ C．Ⅱ、Ⅲ D．Ⅰ、Ⅱ、Ⅲ 4．半圆周法方向换算为圆周法方向的法则是。
Ａ．在SE半圆，圆周度数等于180°加上半圆度数 Ｂ．在NE半圆，圆周度数等于360°减去半圆度数 Ｃ．在SW半圆，圆周度数等于180°减去半圆度数 Ｄ．在NW半圆，圆周度数等于360°减去半圆度数
5．某船真航向120°，该船左舷160°某物标的真方位为。
A．40°
B．040°
C．320°
D．280° 6．某轮陀罗航向300°，陀罗差2°E，则左正横处物标的真方位是：
Ａ．210°
Ｂ．208°
Ｃ．212°
Ｄ．270° 7．当船舶转向时，下列哪些随之发生改变？I．真方位 II.罗方位 III.磁方位 IV.舷角
Ａ．I、II Ｂ．III、IV
Ｃ．I、III
Ｄ．II、IV 8．某船沿极圈（66°33＇N）航行，已知计程仪改正率为0.0%，无航行和推算误差，则实际船位比在海图上按计程仪航程推算的推算船位（不考虑风流影响）。
Ａ．超前
Ｂ．落后
Ｃ．一致
Ｄ．不一定 9．测者眼高为25m，物标高程为16m，则测者能见地平距离为_________海里.A．8.36 B．12.54 C．10.45 D．18.81 10．通常英版海图和《灯标雾号表》中灯塔灯光的最大可见距离可能与下列哪些因素有关？ I：测者眼高 II：灯高 III：射程 IV：地面曲率 V：地面蒙气差 VI：能见度
Ａ．I～III
Ｂ．IV～VI
Ｃ．III～V
Ｄ．I～VI 11．相对计程仪显示的航程是_______ A船舶在各种风流情况下的对水航程 B．船舶在无风流情况下的对水航程
C船舶在仅仅受到风的影响下的对水航程 D．船舶在仅仅受到流的影响下的对水航程 12．某轮航速12kn，航行2h后相对计程仪读数差为27＇.0，计程仪改正率ΔL＝0%，已知该轮实际航程为30 n mile，则该轮航行在 中。
Ａ．顺风顺流
Ｂ．顶风顺流 Ｃ．顶流顺风
Ｄ．顶风顶流
13．某轮航速12kn，顶风顺流航行，流速2kn，风使船减速1kn，0600计程仪读数为100＇.0，计程仪改正率ΔL＝＋10%，则1h后相对计程仪读数为 ：
Ａ．110＇.0 110＇.0 Ｂ．110＇.9 Ｃ．111＇.8 Ｄ．112＇.7 14．某张墨卡托海图的基准纬度。
Ａ．等于该图的平均纬度
Ｂ．等于该图的最高纬度 Ｃ．等于该图的最低纬度
Ｄ．可能不在该图内 15．墨卡托海图能保持等角投影是由于________ A．图上任意点各个方向局部比例尺相同 B．图上各点局部比例尺相同 C．图上各点局部比例尺均等于基准比例尺 D．图上各纬线局部比例尺相同 16．航向为090º时，恒向线与_________重合
A．格林子午线圈 B．子午圈 C．赤道 D．等纬圈
17．在同一张墨卡托海图上，设1 855m的地面长度的赤道图长为lcm，则在30º纬度线上，1 855m地面长度的图长约为_________ A．lcm B．0.866cm C．1.155cm D．0.5cm 18．高斯投影图上有两种图网，经纬线图网和公里线图网，下列说法不正确的是___________ A．公里线图网垂直正交 B．经纬线图网垂直正交 C．轴子午线和赤道垂直正交 D．经纬线均被投影成曲线
19．海图图廓注记通常包括下列哪些内容？I 图名 II 图号 III 图幅 IV 小改正
V 出版和发行情况 VI 重要注意和警告 VII 坐标系说明
Ａ．I～IV Ｂ．II～V Ｃ．III～VI Ｄ．IV～VII 20．通常情况下，物标的实际高度比英版海图所标注的高程
A．大 B．小 C．不一定 D．无法确定 21．英版海图图式中，缩写“SD”是指。
Ａ．礁石、浅滩等的存在有疑问
Ｂ．深度可能小于已注明的水深注记 Ｃ．对危险物的位置有怀疑
Ｄ．危险物的位置未经精确测量 22．海图图式“M”表示该区地质为_______ A．沙 B．泥 C．淤泥 D．岩石 23．适淹礁是指。
Ａ．平均大潮高潮时露出的孤立岩石
Ｂ．平均大潮高潮面下，深度基准面以上的孤立岩石 Ｃ．深度基准面适淹的礁石
Ｄ．深度基准面以下的孤立岩石
24．在一个周期内相继出现几个不同闪光次数的联闪光为。
Ａ．明暗光
Ｂ．联闪光
Ｃ．混合联闪光 Ｄ．长闪光 25．灯质“FlRW”表示。
Ａ．互光灯，一个周期内红、白交替发光，常明不灭 Ｂ．闪光灯有红光弧和白光弧
Ｃ．一个周期内交替闪一次红光和一次白光 Ｄ．闪白光和闪红光
26．英版海图、图书代销店负责其所销售。
Ａ．海图的永久性通告的改正
Ｂ．海图的所有通告的改正 Ｃ．所有图书资料的改正
Ｄ．海图和灯标表的改正
27．要了解某张海图的现行版日期时可查阅。I、航海图书总目录；II、英版航海通告累积表；III、英版航海通告摘要；IV、季末版航海通告
Ａ．I、II Ｂ．II、III Ｃ．III、IV Ｄ．I～IV
28．在电子海图显示与信息系统中，关于海图显示，以下说法错误的是？
A.可以在给定的投影方式下合成和显示海图 B.不能隐去本船在特定航行条件下不需要的信息 C.可以改变电子海图的比例尺 D.可以分层次显示海图信息
29．航迹推算中，在推算船位附近应标注：I.航迹向；II.计程仪读数；III.推算船位；IV.时间。
A.I、IV B.I、III C． II、IV D.II、III 30．以下哪种流的流向和流速最难以掌握？
A．风生流 B．海流 C．洋流 D．潮流
31．某船计划航迹向090°，船速10kn，流向正北，流速4节。则该轮应驶的真航向为：
A．112° B．068° C．114° D．066°
32．某轮计划航向045º，驶真航向045º，连续定位法实测航迹向050º，则该轮实测风流压差和修正风流压差后应驶的真航向分别为：
A．+5º，040º B．+5º，050º C．-5º，040º D．-5º，050º
33．某轮沿某叠标线航行，图示叠标方位为030º，罗经航向030º，磁差2ºE，自差1ºE，则实测风流压差为：
A．-3º B．+3º C．0º D．无法确定
34．某轮陀罗航向030º，航行中用雷达测得物标距离最近时的陀罗方位为303º，陀罗差2ºE，则实测风流压差为：
A．+3º B．-3º C．+5º D．-5º 35．关于低纬海区的航迹计算，以下哪种说法正确？
A．墨卡托航法不适用
B．利用平均纬度求经差的算法精度高于利用中分纬度求经差的算法的精度 C．利用中分纬度求经差的算法精度高于利用平均纬度求经差的算法的精度 D．约定纬度算法适用于跨赤道航行
36．某轮从（40ºS、140ºW）航行到（42ºS、160ºW），则应驶的恒向线航向为：
A．082º.5 B．097º.5 C．262º.5 D．277º.5 37．在海图对景图下标有“方位000º，14n mile”，表明对景图上的山形是：
A．从该物标的南方14海里向南所看到的形状 B．从该物标的北方14海里向南所看到的形状 C．从该物标的南方14海里向北所看到的形状 D．从该物标的北方14海里向北所看到的形状
38．用六分仪观测已知H（m）的物标的垂直角α(‘)，求船与物标的水平距离D(n mile)公式是：
A．DHtan B．DHcos C．D1.856H/ D．D1.865/H 39．两陆标方位定位时，应先测方位变化慢的物标，后测方位变化快的物标，它是建立在：
A．观测的难、易程度
B．定位时间是以第一次观测时刻为准 C．定位时间是以第二次观测时刻为准 D．与观测方位时刻无关
40．两距离定位时，两圆弧位置线通常交于两点，其中只有一个是正确的观测船位，下列哪种判定观测船位的方法是错误的？
A．靠近推算船位的一个交点是正确的观测船位
B．根据所测物标与船位间的相对位置关系来确定那个是观测船位 C．连续多次定位，根据船舶的航迹分布情况来确定观测船位 D．根据船舶的航向来确定观测船位 41．圆弧形位置线的转移采用：
A．绘画平行线的方式 B．逐点转移的方式 C．转移有限几个点后再相连的方式 D．转移圆心的方式 42．以两天极为起止点且通过格林天底的半个大圆称：
A．测者子圈 B．测者午圈 C．格林子圈 D．格林午圈 43．天体半圆方位是从 起算。Ⅰ、北点；Ⅱ、南点；Ⅲ、东点
A．Ⅱ或Ⅲ B．Ⅰ或Ⅱ C．Ⅰ或Ⅲ D．Ⅰ或Ⅱ或Ⅲ 44．天体上中天时，天体地方时角等于：
A．180 º B．0 º C．90 º D．270 º 45．一年中太阳赤经日变化量最大约为：
A．54’3 B．53’8 C．62’3 D．66’6 46．“春季星空”是以赤经等于 为中心线展开的星空。
A．0 º B．90 º C．180 º D．270 º
47．测者1的以度1120E的地方平时LMT1=08h（15/9），此刻测者2的经度2120W的地方平时LMT2= A．00h(16/9)B．16h（15/9）C．08h（14/9）D．16h(14/9)48．将世界时时刻分成UT0、UT1和UT2是考虑了 的因素。
A．地球自转 B．地球自转的速度不均匀 C．地球公转 D．地球公转的速度不均匀 49．船舶由东十二时区进入西十二时区船钟应：
A．拨快1小时 B．拨慢1小时 C．不拨 D．指示世界时 50．实际上，大潮发生在：
A．朔望日 B．朔望日之后 C．月中天 D．朔望日之前
51．存在潮汐周日不等的海区，一个太阴日里相邻两次高潮中潮高较低的高潮称为：
A．高高潮 B．高低潮 C．低高潮 D．低低潮
52．以下哪些是中版《潮汐表》的内容？I、主港潮汐预报表；II、潮流预报表；III、格林尼治月中天时刻表；IV、差比数和潮信表；V、潮时差与潮高差表
A．I～IV B．I、II、IV、V C．II～V D．I、II、III、V 53．主、附港的潮时差为“+”说明：
A．附港位于主港的东面 B．附港位于主港的西面
C．附港高、低潮潮时早于主港 D．附港高、低潮潮时晚于主港
54．我国沿海某地的大潮升为3.5米，小潮升为2.8米，平均海面2.3m。则该地农历初八的低潮潮高约为：
A．3.5米 B．3.2米 C．3.0米 D．1.6米 55．英版《潮汐表》第一卷不包括：
A．潮流预报表 B．主港潮汐预报表 C．调和常数 D．潮时差与潮高差表 56．已知主港低潮时为0355，且主附港时差资料为 Time Difference High Water Low Water 0200 0800 0300 0800
主港 and and and and 1400 2000 1500 2000 附港潮时差-0010-0015-0035-0020 则对应该主港低潮时的附港潮时差为：
A．-0025 B．0025 C．-0012 D．0012 57．回转流图中，矢端注有数字“0”箭矢表示：
A．主港低潮时的流向 B．主港高潮时的流向 C．主港转流流速为0 D．当地转流流速为0 58．半日潮港，涨潮箭矢上标注4kn，则该处小潮日涨潮流第六小时内的平均流速为：
A．2/3kn B．4/3kn C．8/3kn D．2kn 59．我国沿海右侧标的顶标特征为：
A．红色罐形 B．红色锥形 C．绿色罐形 D．绿色锥形 60．某船接近某入口航道，发现海图上有一灯标标志
，该船应将该灯标置于____通过。
A．左舷 B．右舷 C．任意一舷 D．正前方
61．IALA浮标制度B区域中，红色中间有一道绿色横纹的浮标可配备：
A．单个红色罐形顶 B．单个红色锥形顶标 C．单个绿色罐形顶标 D．单个绿色锥形顶标
62．M、N两船同在120°E经线上，M船在50°N，N船在20°N，各自向正东方向航行，且抵达同一条经线（170°E），则两采用大圆航线比恒向线航线可缩短航程的百分比情况为： A．M船比N船所缩短航程的百分比大 B．N船比M船所缩短航程的百分比大 C．M船与N船所缩短航程的百分比相同 D．M船与N船所缩短的航程数相同
63．设A在北半球，B在南半球，从A到B的恒向线航向为230 º，则A到B的大圆始航向为：Ⅰ、大于230 º；Ⅱ、小于230 º；Ⅲ、等于230 º
A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅰ或Ⅱ
64．某船由32 º02’S，115 º10’E航行到6 º39’N，79 º30’E，则相应的大圆航程为：
A．3089 n mile B．3210 n mile C．3189 n mile D．3310 n mile 65．拟定大洋航线时通常应考虑的因素有：I、气象；II、海况；III、碍航物；IV、定位与避让；V、本船条件；VI、推荐航线
A．I～III B．IV～VI C．I～V D．I～VI 66．某船航速20kn，航行1000n mile，需要燃油120t。现仅存燃油110t，至中途港尚有800n mile的航程，中途港至目的港还有1200mile。船舶计划加速1kn到中途港加油，而后恢复原来航速，问船舶在中途港加多少燃油才能使船舶到达目的港？ A．120.4t B．148.2t C．150.2t D．181.9t 67．冰区航行，应尽可能避免在冰区内抛锚，如必须抛锚，则链长应该：
A．以2～3节为宜 B．以3～5节为宜 C．不超过水深的2倍 D．不超过水深的4倍 68．在能见度良好时，沿岸航线距陡峭海岸的最近距离为：
A．1 n mile B．2n mile C．5 n mile D．10 n mile 69．拟定沿岸航行时，在能见度良好的情况下，航线与附近有显著物标可供定位和避险的精测危险物之间的距离，至少应保持在：
A．5链以上 B．1.5海里以上 C．1海里以上 D．2海里以上 70．单一船位线与航线接近垂直时，一般能判断：
A．推算船位偏离航线的情况 B．推算船位超前或落后实际船位的情况 C．船位的纬度 D．船位的经度
71．浮标导航，应首先正确辩论各个浮标。通常辩论浮标是观察该标的：I、颜色；II、顶标；III、灯质；IV、形状；、V、编号；VI、射程
A．I～III B．I～IV C．I～V D．I～VI 72．某轮在狭水道航行，计划航向160º，选择航线正前方某单一物标进行导标方位导航，如航行中实测该导标罗方位158º，陀罗差2ºW，则该轮应：
A．向左调整航向 B．向右调整航向 C．保持原航向 D．无法确定 73．某轮计划利用转向点附近某物标正横确定转向时机左转20º，如船舶接近转向点前发现本船偏左，则该办应：
A．适当提前转向 B．适当推迟转向
C．物标正横时转向 D．定位确认抵达预定转向点后转向
74．采用方位避险，如所选避险物标和危险物同在航线右侧，且避险物标位于危险物后方，避险方位为060º，陀罗差2ºW，则在下列哪种情况下表明船舶不存在航行危险？ Ⅰ、实测陀罗方位060 º；Ⅱ、实测陀罗方位058 º；Ⅲ、实测陀罗方位062 º A．Ⅰ、Ⅱ B．Ⅱ、Ⅲ C．Ⅰ、Ⅲ D．Ⅰ～Ⅲ 75．雾中航行，采用逐点航法的优点是：
A．容易发现物标 B．能确保航行 C．航行能缩小推算误差 D．容易确定航向 76．我国船舶交通管理系统安全监督管理的主管机关是：
A．国家海事局 B．地方港务局 C．国家海洋局 D．交通部 77．罗兰C信号发射格式中，基线延时是用来__________。
A．识别各副台信号 B．解决双曲线位置线双值性 C．保密 D．消除天波干扰 78．GPS卫星导航系统中所使用的P码是__________的伪随机码。
A．快速、短周期 B．低速、短周期 C．低速、长周期 D．快速、长周期 79．单频GPS卫星导航仪定位精度为__________。
A．15～30米 B．0.05～0.1海里 C．1米 D.100米 80．GPS卫星导航仪定位时显示D2D字符表示：
A．二维定位 B．三维定位 C．差分GPS二维定位 D.差分GPS三维定位 81．船载AIS缺省的工作模式为：Ⅰ、自主连续模式；Ⅱ、指定模式；Ⅲ、查询模式
A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅱ、Ⅲ
82．造成雷达荧光屏中心附近雷达回波方位扩展的主要因素是________。
A．水平波束宽度 B．垂直波束宽度 C．脉冲宽度 D．CRT光点直径
83．远处小岛上有两个横向分布的陡峰，间距为1海里，海面以上高度均为36米，本船雷达天线海面以上高度为16米，本船离该岛至少________海里以外时，小岛回波将分离成两个回波。
A．6 B．9 C．16 D．20 84．在雷达荧光屏中心附近出现的圆盘状亮斑回波，越往外越弱，它是________。A．强海浪干扰 B．雨雪干扰 C．某种假回波 D．二次反射回波 85．雷达荧光屏上可能出现多次反射回波的条件是________。Ⅰ、物标距离较近；Ⅱ、物标反射强度较强；Ⅲ、不需要特殊要求
A．Ⅱ、Ⅲ B．Ⅰ、Ⅲ C．Ⅰ～Ⅲ D．Ⅰ、Ⅱ
86．改变雷达量程时，荧光屏上二次扫描回波将________。Ⅰ、方位改变；Ⅱ、距离改变；Ⅲ、改变在屏上的位置，但测得的距离不变
A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅰ、Ⅱ
87．在雷达小量程档观测，发现两侧笔直岸线在屏上呈中间向外弯曲的曲线，说明：
A．是岸线的二次扫描假回波 B．雷达测距误差为“＋” C．雷达测距误差“－” D．多次反射回波 88．对雷达定位使用效果最好的是________。
A．雷达角反射器 B．Ramark C．Racon D．雷达回波增幅器 90．有关雷达应答器，下列说法正确的是：
A．按应答器自己的规律定时发射脉冲信号 B．在雷达脉冲激发后再发射
C．至少有两部雷达同时激发后才发射 D．由雷达应答器控制人员操纵工作 91．多普勒计程仪是应用多普勒效应进行测速和累计航程的，当超声波声源与接收者相互远离时，接收者接收到的声波频率与声源频率相比。A.变大 B．变小 C．相等 D．无影响
92．对于目前船用的多普勒计程仪，下面说法中最恰当的是。A．测量船舶对地速度 B．测量船舶对水速度
C．浅水测量船舶对地速度，深水测量船舶对水速度 D．深水测量船舶对地速度，浅水测量船舶对水速度 93．回声测深仪的工作频率是指。
A．脉冲重复频率 B．发射脉冲的间隔时间
C．每秒钟发射脉冲次数 D．发射超声波的频率 94．磁罗经罗盘磁矩减小将引起。
A．停滞角加大，摆动周期减小 B．停滞角减小，摆动周期加长 C．停滞角加大，摆动周期加长 D．停滞角减小，摆动周期减小 95．利用观测太阳方位求磁罗经自差时，太阳的高度最好。
A．低于30° B．高于45° C．在60°附近D．等于90° 96．受地球自转的影响并在控制力矩的作用下，罗经主轴将作 的摆动。
A．等幅椭圆 B．等幅圆 C．等幅双曲线 D．等幅螺旋线 97．陀螺罗经的基线误差是指罗经基线与船首尾线________，而由此产生 ________的误差。A．平行，偏离真北 B．不平行，偏离真北 C．平行，指向 D．不平行，读数 98．起动安许茨4型罗经时，先合上电源开关，后接通随动开关，为使陀螺球达到额定转速，两者的时间间隔至少应该有________。
A．90分钟 B．60分钟 C．40分钟 D．20分钟 99．连续观察三次天体的罗方位取平均值后再求罗经差的目的是：Ⅰ、减少随机误差的影响；Ⅱ、抵消系统误差；Ⅲ、避免粗差
A．Ⅰ、Ⅱ B．Ⅱ、Ⅲ C．Ⅰ～Ⅲ D．Ⅰ、Ⅲ 100．测者纬度 = 30°N,3月21日，太阳真出时的半圆方位等于：
A.30°NE B.60°NE C.90°NE D.90°SE
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