08.1 船舶操纵基本知识(或见考证题库合集134-138页)
[2151]When a vessel navigates in an area with a small underkeel clearance but with adequate space to take avoiding action she ______.
A. should not be regarded as a vessel constrained by her draught
B. should be regarded as a vessel constrained by her draught
C. shall be regarded as a vessel restricted in her ability to maneuver
D. should be regarded as a non-displacement vessel．
KEY: A
[2152]When towing astern，one way to reduce yawing of the tow is to ______.
A. trim the tow by the stern
B. trim the tow by the head
C. have the tow on an even keel
D. list the tow on the side it is yawing
KEY: A
[2153]While moving ahead，a twin-screw ship has an advantage over a single-screw ship because ______.
A. correct trim will be obtained more easily
B. drag effect will be cancelled out
C. side forces will be eliminated
D. speed will be increased
KEY: C
[2154]A racetrack turn would be better than a Williamson turn in recovering a man overboard if ______.
A. the man has been missing for a period of time
B. the sea water is very cold and the man is visible
C. there is thick fog
D. the wind was from astern on the original course
KEY: B
[2155]A reaching course is one in which the wind ______.
A. comes directly over the bow
B. comes directly over the stern
C. comes over an area extending from broad on the bow to the quarter
D. has no effect on the vessel
KEY: C
[2156]A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing?
A. Length of the towline
B. Height of the towline connection
C. Longitudinal position of the towline connection
D. Direction of opposing force
KEY: B
[2157]A twin screw vessel，making headway with both engines turning ahead，will turn more readily to starboard if you ______.
A. reverse port engine，apply right rudder
B. reverse port engine，rudder amidships
C. reverse starboard engine，apply right rudder
D. reverse starboard engine，rudder amidships
KEY: C
[2158]A twin-screw ship going ahead on the starboard screw only tends to move ______.
A. in a straight line
B. to port
C. from side to side
D. to starboard
KEY: B
[2159]A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n) ______.
A. forward spring line and going slow ahead on the inboard engine
B. after spring line and going slow astern on the outboard engine
C. forward spring line and going slow ahead on both engines
D. forward spring line and going slow ahead on the outboard engine
KEY: D
[2160]A twin-screw vessel is easier to maneuver than a single-screw vessel because the twin-screw vessel ______.
A. permits the rudder to move faster
B. generates more power
C. can turn without using her rudder
D. can suck the water away from the rudder
KEY: C
[2161]A vessel fitted with twin screws is easier in ______ than a vessel with single screw．
A. turning maneuver
B. course setting
C. position fixing
D. regulating speed
KEY: A
[2162]A vessel is considered to be restricted in her ability to maneuver under the Rules if she is ______.
A. at anchor
B. mine-clearing
C. engaged in fishing
D. engaged in towing
KEY: B
[2163]A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back ______.
A. straight astern
B. to port
C. to starboard
D. in no particular direction
KEY: B
[2164]A vessel that is dead in the water on an even keel with most of her superstructure forward will lay ______.
A. A．With the wind abaft the beam or on the stern
B. B．With the wind on the beam
C. C．With the wind on the bow
D. D．With the wind dead ahead
KEY: A
[2165]A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.
A. the masthead lights for a towing vessel
B. the lights for a vessel restricted in its ability to maneuver
C. sidelights，sternlight and towing light
D. All of the above
KEY: D
[2166]A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as ______.
A. smelling the bottom
B. squatting
C. bank suction
D. bank cushion
KEY: D
[2167]A vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel is called ______.
A. a vessel restricted in her ability to maneuver
B. a vessel not under command
C. a vessel engaged in fishing
D. a vessel constrained by her draught．
KEY: B
[2168]A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit ______.
A. during the day，three balls in a vertical line
B. during the day，three shapes，the highest and lowest being balls and the middle being a diamond
C. when making way at night，two all-round red lights，sidelights，and a sternlight
D. when making way at night，masthead lights，sidelights，and a sternlight
KEY: C
[2169]Apparent wind speed blowing across a vessel under tow can be measured by a(n) ______.
A. barometer
B. wind vane
C. anemometer
D. thermometer
KEY: C
[2170]As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship's speed is called ______.
A. propeller velocity
B. speed of advance
C. wake distribution
D. wake fraction
KEY: D
[2171]As a vessel falls off the wind from close-hauled to a beam reach，the tendency for the vessel to move sideways through the water will ______.
A. increase
B. decrease
C. change only if the vessel comes about on the opposite tack
D. not change
KEY: B
[2172]At night，a vessel shall indicate that she is restricted in her ability to maneuver by showing in a vertical line two ______.
A. red lights
B. red lights and two white lights
C. red lights with a white light in between
D. white lights with a red light in between
KEY: C
[2173]Besides saving distance along the track line，another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation because ______.
A. it is faster
B. it can be used in both the immediate action and the delayed action situations
C. in fog，if the turn is started as soon as the man goes over，the vessel will be at the point where he
went over when the turn is completed
D. it returns the vessel to the original track line on a reciprocal course
KEY: A
[2174]Catenary as applied to tow lines denotes the ______.
A. dip of the line
B. stretch of the line
C. strain on the line
D. length of the line
KEY: A
[2175]Changing direction by bringing the stern of the vessel through the eye of the wind is known as ______.
A. jibing
B. running before the wind
C. tacking
D. reefing
KEY: A
[2176]For the deepest water when rounding a bend in a river，you should navigate your vessel ______.
A. toward the inside of the bend
B. toward the outside of the bend
C. toward the center of the river just before the bend，then change course for the river's center after the bend
D. in the river's center
KEY: B
[2177]How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel? ______.
A. It pulls the bow toward the bank.
B. It pushes the entire vessel away from the bank.
C. It pulls the stern toward the bank.
D. It heels the vessel toward the bank.
KEY: C
[2178]If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is ______.
A. pushed ahead
B. towed alongside
C. towed astern
D. Any of the above
KEY: D
[2179]If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to ______.
A. change course
B. slow down
C. heave to
D. adjust tow line length
KEY: D
[2180]If the towing bridle legs are not of equal length ______.
A. excessive strain is placed on the shorter leg
B. the shorter leg may fail
C. the longer leg is slack
D. All of the above
KEY: D
[2181]If the towline parts，you should ______.
A. start towing by pushing ahead
B. abandon the towing vessel
C. retrieve the tow bridle
D. relieve strain on the retrieving line
KEY: C
[2182]If you are the stand-on vessel in a crossing situation，you may take action to avoid collision by your maneuver alone. When may this action be taken? ______.
A. At any time you feel it is appropriate
B. Only when you have reached extremis
C. When you determine that your present course will cross ahead of the other vessel
D. When it becomes apparent to you that the give-way vessel is not taking appropriate action
KEY: D
[2183]In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should ______.
A. use more right rudder
B. use more left rudder
C. increase speed
D. decrease speed
KEY: A
[2184]In ballasting to survival draft，while in transit，due to extreme wind and wave loads，thrusters or propulsion，if available，should be used to ______.
A. reduce windward mooring tensions
B. maintain vessel heading
C. maximize accelerations
D. increase speed of advance
KEY: B
[2185]In order for a vessel to be engaged in fishing she must be ______.
A. underway
B. using gear which extends more than 50 meters outboard
C. using a seine of some type
D. using gear which restricts her maneuverability
KEY: D
[2186]In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use ______.
A. very little rudder
B. some left rudder
C. some right rudder
D. full left rudder
KEY: C
[2187]In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because ______.
A. shock loading on the tow line is reduced
B. towing speed is improved
C. the vessel is more visible from the tug
D. the catenary of the tow line is reduced
KEY: A
[2188]In towing，heaving lines are used for ______.
A. passing a tow bridle to the tug
B. passing a messenger line
C. heaving in the tow bridle
D. service lines with rocket line throwers
KEY: B
[2189]In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn ______.
A. to starboard
B. outboard from the center
C. to port
D. inboard toward the center
KEY: B
[2190]It is easier to dock a right-hand，single-screw vessel ______.
A. starboard side to the wharf
B. either side to the wharf
C. port side to the wharf
D. stern to the wharf
KEY: C
[2191]Most of your vessel's superstructure is forward. How will the vessel lie when drifting with no way on? ______.
A. With the wind from ahead
B. With the wind off the port beam
C. With the wind off the starboard beam
D. With the wind from abaft the beam
KEY: D
[2192]Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should ______.
A. not exceed bare steerageway during the transit
B. take a strain as soon as you can to control the tow
C. come up to speed very slowly and maintain a safe speed
D. come up to speed quickly，then cut back power considerably to ease the strain
KEY: C
[2193]One advantage of chain over wire rope for a tow bridle is that chain ______.
A. is better suited for inland towing
B. resists damage from chafing
C. handles more easily
D. equalizes towing forces better
KEY: B
[2194]One major advantage of the round turn maneuver in a man overboard situation is that it ______.
A. is the fastest method
B. is easy for a single-screw vessel to perform
C. requires the least shiphandling skills to perform
D. can be used in reduced visibility
KEY: A
[2195]The best method to secure a tow line to a cleat is to ______.
A. take a turn around the cleat，then figure-eights，and a half-hitch
B. make figure-eights，followed by a half-hitch，then a figure-eight knot
C. take a turn，a half turn，and a figure-eight
D. take several turns around the cleat only
KEY: A
[2196]The biggest problem you generally encounter while towing a single tow astern is ______.
A. the catenary dragging on the bottom
B. swamping of the tow
C. the tow tending to dive
D. yaw
KEY: D
[2197]The catenary ______.
A. acts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the tow
B. gives an approximation of the amount of strain on the towing hawser
C. is the dip in the towing hawser between the tug and the tow
D. All of the above
KEY: D
[2198]The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in ______.
A. synchronism
B. harmony
C. check
D. step
KEY: D
[2199]The distance that a vessel travels from the time that the order to put engines full astern until the vessel is dead in the water is known as ______.
A. advance
B. head reach
C. surge
D. transfer
KEY: B
[2200]The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel?
A. It forces the bow away from the bank.
B. It forces the stern away from the bank.
C. It forces the entire vessel away from the bank.
D. It heels the vessel toward the bank.
KEY: A
最新航海英语补充题库 [1]Which signal of the follwings is not provided with onboard lifeboat? 船载救生艇不配备下列哪一种信号？ A.Rocket parachute signals 火箭降落伞信号 B.Buoyant smoke signals可浮烟雾信号 C.Hand flare signals 手持火光信号 D.Selfigniting signals自点火信号 [2]According to IMO regulations,______shall be posted outside lifeboat? 根据IMO规定，下列哪一项应张贴于救生艇外部？ A.the retrore-flective tapes反光带 B.the reflective tapes反射的 C.the flashing bands 闪光的 D.the antiflashing bands [3]Which one of the following is not required on survival crafts? 下列哪一项不是救生筏上应配备的？ A.Antiseasickness medicine 抗晕船药 B.Immersion suits防寒服 C.axes 斧头 D.lifebuoys救生圈 [4]Have the safety belts for _______been examined? 是否已经检查了（全封闭式救生艇的）的安全带？ A.total enclosed lifeboats B.totally enclosing lifeboats C.totally enclosed lifeboats D.total encloseing lifeboats [5]The fireprotected lifeboats are found_____________. 耐火式救生艇状况（令人满意）。 A.in satisfactorily condition B.satisfactorily C.satisfactory D.satisfactored [6]We test the water spray fire protection system of fireprotected lifeboats every 3 months,___the abandon ship drill. 我们每三个月（结合）弃船演习，对耐火式救生艇的防火喷淋系统进行检查。 https://www.doczj.com/doc/7314932706.html,bining with https://www.doczj.com/doc/7314932706.html,bined with https://www.doczj.com/doc/7314932706.html,bining to https://www.doczj.com/doc/7314932706.html,bined to [7]Are your lifeboats fitted with_______? 你船的救生艇是否配有（）？ A.cargo wires 吊货索 B.topping lift 千斤索 C.guiding lines 导引绳
中国海员之家网站考试资料系列46 期航海英语试题 科目：航海英语试卷代号：903 适用对象：无限航区，近洋航区船舶二、三副 （本试卷卷面总分100 分，及格分数70 分，考试时间100 分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在相应位置上用2B 铅笔涂黑。第1 题至88 题，每题1 分，第89 题至96 题，每题 1.5 分。 一、单项选择题 1. Information on the opening times and characteristics of radiobeacons can be found in which publications? A. List of Light B. Coast Pilot C. Sailing Directions D. List of Radiobeacons 2. Mariners not entering the port are ______ to keep at least one mile off. A. advised B. reported C. complied D. supplied 3. The velocity of the current in large coastal harbors is______. A. predicted in Tidal Current Tables B. unpredictable C. generally constant D. generally too weak to be of concern 4. A mercator chart is a______ A. cylindrical projection B. simple conic projection C. polyconic projection D. rectangular projection 5. Why does distance always have to be measured from the nearest scale on a Mercator chart? A. Because it is the most efficient way B. Because it varies with the change of latitude C. Because it varies with the change of longitude D. Because it is the most straight line 6. Who is responsible for the voyage plan? A. The person who has done the planning B. The master C. The navigation officer D. The owner 7. Charted depth is the______. A. vertical distance from the chart sounding datum to the ocean bottom, plus the height of 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 8. Defense plans may cause the operation of electronic aids to navigation to be suspended with ______. A. no notice B. one day's notice C. a week's notice D. thirty (30)days notice 9. Periodic publications notifying change in, or additions to, previously published navigational date are______. A. Supplements B. Annual Summary C. Navigational Warning D. Notices to Mariners 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. 中国海员之家网站考试资料系列46 期航海英语试题第2 页 中国海员之家网站（http://www.seamancn. com ）搜集整理，更多考试资料请到网站免费下载。 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?
海图改正的注意事项 1.对本航次需要的海图改正应在航线拟定前结束，并交船长审阅。 2.凡涉及到光弧及导标方位等改正，应注意通告中用方位标明的标弧及导标方位都是指从海上看灯标的方位。 3.凡通告中有下列文字时予以注意：在即将出版（或已经出版）的xxxx号新版（或改版）还涂上，已包括此项改正。 4.改正海图时应严肃认真，对航行安全负责。所有航海通告内容原则上都应该按要求改正带所有海图上。 5.应该注意通告中的文字也会有差错，特别是方位，距离经纬度等数据误差。 天体方位求罗经差注意事项 1.观测太阳低高度方位求罗经差是目前船舶在海上求罗经差普遍采用的方法。所谓低高度是指太阳观测高度在30以下，最好在15°以下； 2.观测时应尽量保持罗经面的水平； 3.为避免粗差和减小随机误差的影响，一般应连续观测三次，取平均值作为应对平均时间的罗方位，罗经读数读至°，观测时间准确到1m. 中版航海通告的改正的注意事项
1.除每年52期通告外，每年年底补充发布“民用海图改正索引”给出该年度海图应改正通告的顺序列表，利用该索引可检验海图在本年度是否漏改。 2.临时性通告每项报告前注有“T”标题有注有”临“字样。 3.《航海通告》是以最大比例尺的最新海图为准，用经纬度或方位距离表示。 4.方位均系真方位，但所记光弧或导标方位线等，系海上灯塔灯柱的真方位。 5.每一号码的航海通告一般由通告标题，改正内容相关海图.航标和资料来源组成。1．拟定大洋航线时应考虑哪些因素 答：1.气象条件2.海况3.障碍物4.定位与避让条件5.本船条件 6.合理使用大洋推荐航线 2．航行计划的基本步骤 答：1.研究航海图书资料2.初选航线，估算航行时间3.绘画计划航线内容：1.图书资料的准备和改正2.人员配备、各种助航仪器、物料的准备3.设计和绘画航线4.确定进出港和通过重要航段或物标的时机 3．确定航线离岸的距离应考虑哪些因素 答：1.船舶吃水的深浅2.航程的长短3.测定船位的难易4.海图测绘的精度5.能见度的好坏6.风流影响的大小和方向7.船舶密集度8.驾驶员技术水平9.足够的余地 二、观测叠标罗方位求罗经差 1叠标法测定罗经差的步骤如下 (1)在海图上选择合适的叠标确定目视叠标就是海圈上的叠标确定其真方位TB (2)利用罗经方位仪跟踪观测后标方位随着船舶航行当发现前、后标重叠时读取后标罗方位CB(或陀罗方位GB) (3)计算罗经差ΔC=TB–CB或ΔG=TB–GB。 若已知当地的磁差Var可以求得磁罗经的自差 Dev=ΔC–Var。 2.利用叠标测定罗经差观测过程中应该注意
航海学知识点汇总 第一章航海学基础知识 1.大地球体：大地水准面围成的球体 2.大地球体两个近似体：椭圆体（进行精度较高计算如定义地理坐标和制作墨卡托海图）； 圆球体（简易计算如大圆航线和简易墨卡托海图） 3.地理坐标：基准线是格林经线、纬线经度：由格林经线向东或向西到该点经线，范围 （0—180）；纬度：某点在地球椭圆子午线上的法线与赤道面交角，范围（0—90） 4.经差、纬差（范围都为0—180）；到达点相对于起航点的方向；Dφ=φ2-φ1 Dλ=λ2- λ1N/E为正号S/W取负号；结果为正为N/E，为负则为S/W；注意如果得出经差大于180，则用360减去其绝对值，然后符号更换。 5.关于赤道、地轴和球心对称问题（关于地心对称纬度等值反向，经度相差180°） 6.关于不同坐标系修正问题：同名相加、异名相减，结果如果为负名称与原来相反。GPS 坐标系左边原点在地心。 7.方向的确定：方向是在测者地面真地平平面上确定的。测者子午圈与测者地面真地平的 交线为南北线，测者卯酉圈（东西圈）与测者地面真地平平面交线为东西线。方向的三种表示法，要会换算。（圆周、半圆周、罗经点）一个罗经点11.25°。 圆周法是以真北为起点顺时针0-360°，半圆法是以北或南为起点顺时针或逆时针0-180°；换算时最好用作图法比较直观。 8.理解真航向（真北到航向线）；真方位（真北到方位线）；舷角（航向线到方位线，两种 表示法）所以真方位和相对方位（舷角）只是起算点不同，目的点相同，只是相差了真北到航向线的角度，即真航向。要会换算：TB=TC+Q 或TB=TC+Q(右正左负)，具体计算既可以用公式也可以用作图法解决（分别以测者和目标为中心做坐标系，连接测者与目标为方位线，便可一目了然。 9.罗经向位换算：罗经差:罗航向与真北夹角；陀螺差：陀螺北与真北夹角；磁差：磁北与 真北夹角，与时间、地区及地磁异常有关；自差：罗北与磁北夹角，与航向、船磁及磁暴有关；TC/GC/MC/CC之间换算要掌握TC=GC+ΔG=CC+ΔC=MC+VAR;MC=CC+DEV 10.关于磁差：航用海图、小比例尺海图、港泊图分别在罗经花、磁差曲线、和海图标题栏 给出。计算所求磁差=图示磁差+年差x（所求年份-测量年份）○1图示磁差取绝对值；○2年差增加取+，减少取—，若用E/W表示，则与图示磁差同名取+异名取—；○3结果为+时，所求磁差与图示磁差同名；为负时所求磁差与图示磁差异名。 11.海里定义：地球椭圆子午线上纬度1分所对应的弧长1n mile=1852.25-9.31cos2φ(m) 赤 道最短，两极最长44014—90之间实际船位落后于推算船位；44014S—44014N之间，实际船位超前于推算船位。 12.测者能见地平距离D e、物标能见地平距离D h、物标地理能见地平距离D0的区别与计算。 13.中版射程：晴天黑夜，测者眼高5米时，理论上能够看到的灯标灯光的最大距离，某灯 标射程等于该灯标光力能见距离和5米眼高地理能见距离中较小者，中版射程与眼高无关，但要是问最大可见距离就有关了。英版射程：光力射程或额定光力射程，它只与光力能见距离和气象能见度有关。如何求最大可见距离问题：○1算出物标地理能见距离D0;○2和射程比较取小者。 14.航速与航程V船不计风流；V L计风不计流；V G计风又计流，所以V船与V L比只差风， 可以判断顶风逆风；V L与V G只差流，可以判断顶流逆流。船速和计程仪改正率几种情况的测定ΔL=S L-(L2-L1)/L2-L1记住：SL是准确的对水航程。几种测船速和ΔL的测量方法（无风流、恒流、等加速流、变加速流几种情况）
一、海图及海图作业50题 [251]To agree with larger scale chart，latitudes taken from this chart should be increased ______ about 8 seconds． A. with B. in C. by D. to [252]On this chart only the principle ______ to navigation are shown．A.equipment's B.tools C.apparatus D.aids [253]Many of the soundings shown on the chart are derived from _____.Undue reliance should not be placed upon them． A. complete and often very poor surveys B. correct and often very good surveys C. inadequate and often very old surveys D. adequate and present surveys [254]Lines on a chart which connect points of equal magnetic variation are called ______. A. magnetic latitudes B. magnetic declinations C. dip D. isogonic lines [255]Isogonic lines are lines on a chart indicating ___. A. points of equal variation B. points of zero variation C. the magnetic latitude D. magnetic dip [256]In which source could you find the number of a chart for a certain geographic area? ______. A. Chart No. 1 B. Catalog of Charts C. IMO Practical Navigator D. IMO Light List [257]How is the annual rate of change for magnetic variation shown on a pilot chart? ______. A. Gray lines on the uppermost inset chart B. Red lines on the main body of the chart C. In parenthesis on the lines of equal magnetic variation D. Annual rate of change is not shown. [258]Charted depth is the ______. A.vertical distance from the chart sounding datum to the ocean bottom，plus the height of 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 [259]Chart correction information is NOT disseminated through the ______. A. Summary of Corrections B. Local Notice to Mariners C. Daily Memorandum D. Chart Correction Card [260]All straight lines represent great circle tracks on a chart based on a(n) ______. A. Mercator projection B. polyconic projection C. orthographic projection D. gnomonic projection [261]A revised print of a chart is made ______. A. after every major hydrographic survey of the area covered by the chart B. when there are numerous corrections to be made or the corrections are extensive C. when a low-stock situation occurs and minor corrections are made D. every two years to update the magnetic variation information [262]A Mercator chart is a ______. A. cylindrical projection B. simple conic projection C. polyconic projection D. rectangular projection [263]______ chart 3994，positions read from this chart should be shifted 0．03 minutes Northward． A. To consider B. To check C. To examine D. To agree with [264]The changes in the channel's sands and buoys on this coast are ______ this chart can not be considered as a safe guide of the channel．A. frequent B. so frequent C. frequent that D. so frequent that [265]______ is a term denoting the determination of a ship's position by observations of Celestial or terrestrial objects，or by a combination of both． A. Course-planning B. Position-fixing C. Radar-plotting D. Stowage-plan making [266]A chart position enclosed by a semi-circle is a(n) A. fix B. estimated position C. dead reckoning position D. running fix [267]A true bearing of a charted object，when plotted on a chart，will establish a ______. A. fix B. line of position C. relative bearing D. range [268]Admiralty Charts are published in ______. A. U．S．A B. China C. U．K D. Japan [269]Attention is ______ the advice on the use of charts in The Mariner's Handbook Chapter 3，Section 1．A. fixed to B. needed for C. pushed to D. drawn to [270]Distance along a track line is measured on a Mercator chart by using the ______. A. latitude scale near the middle of the track line B. longitude scale near the middle of the track line C. latitude scale at the midlatitude of the chart D. latitude or longitude scale at the middle of the scale [271]Entering from sea，a daymark on the port side of the channel would be indicated on a chart by a ______. A. red triangle with the letter R B. white triangle with the letters RG C. green square with the letter G D. white square with the letters GR [272]Magnetic information on a chart may be ______. A. found in the center(s) of the compass rose(s) B. indicated by isogonic lines C. found in a note on the chart D. All of the above [273]My position has been obtained ______ astronomical observation．A. with B. from C. on D. by [274]Navigational charts are ______ frequent changes，the important one of which are promulgated by Admiralty Notices to Mariners． A. published with B. combined with C. in connection with D. subject to [275]On the south and the east coasts of Block Island are circles with a dot in the center and labeled CUP. This is a ______. A. conspicuous object B. steep depression in the surrounding hills that resembles a cup C. domed structure useful for navigation D. calling-up-point used for traffic control [276]Solid green arrows on the main body of a pilot chart indicate ______. A. prevailing wind directions B. prevailing ocean current directions C. probable surface current flow D. shortest great circle routes [277]The agonic line on an isomagnetic chart indicates the ______. A. magnetic equator B. magnetic longitude reference line C. points where there is no variation D. points where there is no annual change in variation [278]The buoy symbol printed on your chart is leaning to the northeast. This indicates ______. A. you should stay to the north or east of the buoy B. you should stay to the west or south of the buoy C. the buoy is a major lighted buoy D. nothing special for navigational purposes [279]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? A.Surging B.Spilling C.Plunging D.Converging [280]The chart symbol indicating that the bottom is coral is ______. A. C B. Cl C. Co D. c [281]The charts sold are of ______. A. newly edition with up to date correction and in reasonable prices． B. the current edition and incorporate the last Notices to Mariners correction C. the current edition and incorporate the latest Notices to Mariners correction at the time of sale． D. brand-new one with up to date correction and clean writing [282]The compass rose on a nautical chart indicates both variation and ______. A. deviation B. annual rate of variation change C. precession D. compass error [283]The description Racon beside an illustration on a chart would mean a ______. A.radar conspicuous beacon B.circular radiobeacon C.radar transponder beacon D.radar calibration beacon [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 [285]The numeral in the center of a wind rose circle on a pilot chart indicates the ______.
航海英语补充考题 2. Treatment of frostbite includes_________. A. rubbing affected area briskly to restore circulation B. wrapping area tightly in warm cloths C. warming exposed parts rapidly D. rubbing affected area with ice or snow 冻伤的处理包括让外露的身体部分快速回暖。 3. You must shift a weight from the upper tween deck to the lower hold. This shift will _______. A. decrease the metacentric height B. increase the rolling period C. make the vessel stiffer D. make the vessel more tender 你必须移动重物从二层甲板到底层舱，这移动会让船舶稳性变大。 12. What is the MINIMUM distance a vessel, subject to the requirements of Annex V to MARPOL 73/78, must be located from nearest land to legally discharge paper trash? A. 5 nautical miles B. 25 nautical miles C. 10 nautical miles D. 12 nautical miles 根据marpol公约，船舶离最近陆地合法排放纸屑进海的最短距离是12海里。 22 What should you avoid when receiving work order? A. Misunderstandings B. Wasting time on having procedures explained C. Having other people help you with your work D. Swearing 当收到工作指令时避免误解。 24 What does UDI mean? A. Unrestricted Data Identify B. Understanding Digital Information C. Up-link Data Identify D. Unrestricted Digital Information UDI为非限制性数字信息 25 The strongest winds and heaviest rains in a hurricane are found in the______. A. cloud walls B. eye C. outer bands D. spiral rain bands 飓风当中风力最强，下雨最大的地方是风眼墙/云墙。 32 What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to_______. A. mention signal stations and ice, storm, traffic and port signals B. give the correction of the lights and fog signals C. give the international numbers of lights D. give the information on the lights and fog signals 英版灯标表雾号表给出的是关于浮灯和雾号的信息的。 33 The primary concern in aiding a back injury patient is ________. A. providing enough fluids to prevent dehydration B. avoiding possible injury to the spinal cord by incorrect handling C. relieving the patient’s pain by giving aspirin or stronger medication D. preventing convulsions and muscle spasms caused by the pain 在治疗背部受伤人员时主要注意避免由于处理不当可能引起脊髓受伤。 34 The correct way to make an eye in a wire rope with clips is to place the clips with the_____. A. first and third U-bolts on the standing part and the second U-bolt on the bitter end B. first and third U-bolts on the bitter end and the second U-bolt on the standing part C. U-bolts of all clips on the bitter end D. U-bolts of all clips on the standing part 带有索夹的钢丝绳制造眼环时正确方法是将其索夹与U型螺栓索夹系在索端上 38 Which term indicates the rise in height of the bottom plating from the plane of the base line? A. Deadrise B. Camber 弯曲度 C. Molded height D. Sheer 基线平面到船底钢板的高度称之为camber 49. The external flotation bladder of an immersion suit should be inflated ______.
海知识和专业的工作态度 57. When own ships position input to ECDIS wrong, what is the result? A. Nothing B. ECDIS will give warning C. ECDIS will automatically be switched off D. Position, range and bearing taken on the ECDIS will be wrong 答案：D当把拥有的船位错误输入电子海图显示与信息系统，结果会怎么样？显示在电子海图显示与信息系统上的船位，航程，方位将错误 58. What should you avoid when receiving work order? A. Having other people help you with your work B. Swearing C. Wasting time on having procedures explained D. Misunderstandings 答案：D当收到工作命令时应避免什么？误解 59. What kind of information dose the fire plan contain? A. Fire alarm signal, fire instruction and your assignment B. location of firefighting equipment onboard C. How to use firefighting equipment onboard D. Information on how handle different types of fires 答案：B消防计划包括哪些种类的信息？船上消防设备的位置 60. Do you need to measure oxygen levels before entering an enclosed space? A. Yes, always B. No C. Not if you measure for toxic gases D. Yes, but not if you ventilate properly first for 24 hours 答案：A当你进入一个密闭空间前你需要测量氧气浓度吗？是的，总是这样 61. What is the most important treatment concerning a foreign body in the eye? A. Rinsing of the eye B. …… anaesthetic C. Wring the eye-lid to prevent blinking D. Close the eye for a while 答案：A关于眼睛里的杂物最重要的处理方法是什么？清洗眼睛 62. 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的意思是什么？爆炸上限 63. In which way may intake of poisoning material not occur? A. By inhaling B. By skin penetrating and skin absorbing
航海学大连海事大学 1.1.1 地球形状 ·用大地球体描述地球形状，大地球体是大地水准面团城的球体. ·常用的大地球体的近似体有两个： 地球圆球体（用于简便的航海计算，如航迹计算，简易墨卡托海图绘制，大圆航向和航程计算）； 地球椭圆体（用于较精确的航海计算等，如定义地理坐标，墨卡托海图绘制） 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.航海上进行精度较高的计算时，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 3.航海学中，使用地球椭圆体为地球数学模型的场合是： I.描述地球形状时；II.定义地理坐标时；III.制作墨卡托投影海图时；IV.计算大圆航线时；V，制作简易墨卡托图网时 A．I、II B．II、III C．III、IV D．III、V 4.航海学中，使用地球圆球体为地球数学模型的场合是： I.描述地球形状时；II.定义地理坐标时；III.制作墨卡托投影海图时；IV.计算大圆航线时；V.制作简易墨卡托图网时 A．Ⅰ、ⅡB．Ⅱ、ⅢC．Ⅲ、ⅣD．Ⅳ、Ⅴ 5.航海学中的地球形状是指： A．地球自然表面围成的几何体B．大地水准面围成的几何体 C．地球圆球体D．以上都对 6.航海学中的地球形状用描述。 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．以上都对 1.1.2 地理坐标 1.1. 2.1 地理经度和地理纬度的定义和度量方法. 地理坐标包括地理经度和地理纬度，是建立在地球椭圆体基础之上. 地理经度（Long.，λ：格林经线和某地经线所夹的赤道短弧或该短弧所对应的球面角或球心角. 地理纬度（lat.，?）：地球椭圆子午线上某点的法线与赤道面的交角. 7.地理经度以作为基准线的 A．赤道. B．格林经线C．测者经线D．测者子午圈 8.某地地理经度是格林子午线与该地子午线之间的 A．赤道短弧B．赤道短弧所对应的球心角 C．极角D．A．B．C都对 9. 地理坐标的基准线是 A．经线、纬线B．赤道、经线 C．格林子午圈、纬圈D．赤道、格林子午线 10.地理经度的度量方法是 A．由格林子午线向东度量到该点子午线，度量范围0～180o B．由格林子午线向西度量到该点子午线，度量范围0～180o C．由格林子午线向东度量到该点子午线，度量范围0～360o D．A或B 11.地理经度的度量方法是 A．由该点子午线向东或向西度量到格林子午线，度量范围0～180o B．由该点子午线向东或向西度量到格林子午线，度量范围0～360o C．由格林子午线向东或向西度量到该点子午线，度量范围0～180o