航海学真题38期
航海学考试真题 有答案
中华人民共和国海事局第1期海船船员适任统考试题科目：航海学适用对象：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、Ⅲ4．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、IV8．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）。
大学航海学考试(习题卷4)
大学航海学考试(习题卷4)第1部分：单项选择题，共98题，每题只有一个正确答案,多选或少选均不得分。
1.[单选题]某轮陀罗航向210,陀罗差2E,则右正横处物标的陀罗方位是_________A)090B)298C)300D)302答案:C解析:2.[单选题]地球椭圆体上不同纬度弧长不相等,在纬度45处1n mile等于____________A)1842.9mB)1852.3mC)1852.0mD)1861.6m答案:B解析:3.[单选题]保证海上船舶安全航行的首要因素为_________ 。
A)保持正规了望B)使用安全航速C)正确判断碰撞危险D)及早采取避碰行动答案:A解析:第四节 避免碰撞的行动（57～84）4.[单选题]某轮顶风顶流航行,船速18节,流速2节,风使船减速1节,计程仪改正率+8%,0400计程仪读数=100.’0, 则2小时后相对计程仪读数为_____________A)@127.’8B)@ 131.’5C)@ 135.’2D)@138.’9答案:B解析:5.[单选题]某船陀罗航向030,陀罗差2E,则左正横处物标的陀罗方位是___________A)300B)302C)288D)270答案:A解析:6.[单选题]两方位定位时,两方位线的交角应:( )A)不小于20,不大于120C)不小于60,不大于120D)不小于60,不大于150答案:B解析:7.[单选题]平衡舵的特点是：①舵叶压力中心靠近舵轴；②所需的转舵力矩小；③可相应减小所需的舵机功率；④结构简单。
A)①、②、③B)②、③、④C)①、③、④D)①～④答案:A解析:8.[单选题]船舶在能见度不良时的行动规则适用于的对象为_________ 。
A)在能见度不良的水域中的船舶B)在能见度不良的水域中的在航船舶C)在能见度不良的水域中及在其附近在航且相互看不见的船舶D)在能见度不良的水域中及在其附近在航的任何航船舶答案:C解析:9.[单选题]驾驶员在下达舵令后，未对操舵水手的执行情况予以核对应属于_________的疏忽 。
航海学试题B(最终)
航海学试题． 月 日测者位于10 622 的地域可见极昼现象。
〔本试卷卷面总分 100 分，及格分为 70 分，测验时间 100 分钟〕A ．南纬 66°33′以上B．南纬 ° ′以上 23 27C ．北纬 66°33′以上D ．北纬 66°33′以下 答题说明：请选择一个最适宜的答案，并将该答案按答题卡要求，写在答题纸上。
第111 ．某日操纵太阳测得六分仪指标差 ＝－ ，并查得当天太阳视半径等于i 5 16 .0，试问以下哪题至 94 题，每题 1 分，第 95 题至 98 题，每题 分。
组上、下切读数的不雅测值是正确的？A ．－28 .6， ＋36 .2B ．－27 .5， ＋35 .6 一．单项选择题C ．－ ， ＋ 27 .7 36 .4D ．－27 .9， ＋36 .91．以下关于经差、纬差的说法正确的选项是： 12．只需修正眼高差、蒙气差和视差的天体是：？A ．纬差不克不及大于 900B ．经差不克不及大于1800 A ．金星和火星 13．天体高度 B ．太阳 ，距离 C ．月亮 其视差 D ．恒星、木星和土星 C ．达到点在南半球，纬差标的目的为南 D ．B 、C 都对 。
0 02．起航点经度λ ＝136 12＇.7W ，达到点经度λ ＝114 21＇.3E ，那么两地间的经差 D λ为： A ．越高 /越远/越大 C ．越低 /越近/越小B ．越高 /越远/越小 D ．越低 /越远/越大1 2 A ．070034＇.0E C ．070034＇.0W B ．250034＇.0E D ．109026＇.0W 14．从测者子圈起算的时间是： A ．世界时B ．恒星时3．天体方位圈是指过 的半个大圆。
C ．处所平时D ．区时hmsA ．天顶、天体和天底B ．天北极、天体和天南极 D ．仰极、天体和俯极 15．测者经度 ＝27°42.′0W 地点时区的区时 ZT ＝23 51 00 〔 月 11 日〕，那么该地 2 的处所平时 LMT ＝ 。
第38期海船船员适任证书统考试卷及答案驾驶专业
中华人民共和国海事局2005年第3期海船船员适任证书全国统考试题（总第38期）科目：航海英语试卷代号：903适用对象：无限航区、近洋航区二/三副(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：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68题，每题1分，第69题至76题，每题4分．一．单项选择题1．Hard right rudder means ______．A．jam the rudder against the stopsB．meet a swing to the right，then return to amidshipsC．put the rudder over to the right all the wayD．put the rudder over quickly to 15 degrees right rudder2．It is dangerous for vessels without the use of radar ______ the estuary．A．to get B．to approach C．to proceed D．to close3．Get searchlight ______ for transiting the canal at night．A．on B．already C．ready D．almost4．Go and ______ your Shipper to my cabin．A．take B．bring C．fetch D．carry5．Allow me to put ______ some evidence for your further consideration．A．up B．on C．into D．forward6．Many new ______ will be opened up at sea in the future for those with a university education．A．opportunities B．realities C．necessities D．probabilities7．Of the following，_______ means the sufficiency of a vessel in materials，construction，equipment，crew，and outfit for the trade or service in which it is employed．A．Seaworthiness B．Cargo-worthiness C．Readiness D．Proficiency 8．The following ______ is a standard phrase．A．WARNING．Y ou are running into dangerB．Y ou are possibly running into dangerC．Y ou could be in the case of running into dangerD．Y ou could，I think，be running into danger9．The following ______is a standard phrase．A．Y ou may enter fairway B．Y ou should enter fairwayC．ANSWER．It is permitted to enter fairway D．Y ou could enter fairway10．The turning circle of a vessel is the path followed by the ______.A. center of gravityB. outermost part of the ship while making the circleC.bowD. tipping center11．Which of the following best indicates how many tons of cargo a ship can carry？A．Bale cubic B．Deadweight C．Gross tonnage D．Net tonnage 12．Ships are also required to carry a(n) _______ to mitigate the effects of environmental damage in the event of a pollution incident by ISM code and MARPOL convention.A. Oil Record BookB. Cargo Record BookC. Muster ListD. Shipboard Oil Pollution Emergency Plan13．Foam extinguishes a fire by ______．A．shutting off the air supply B．cooling the fuel to below ignition temperature C．dispersing(使分散) the fuel D．removing the source of ignition14．Most propellers on merchant vessels are constructed of_____．A．manganese bronze B．cast iron C．mild steel D．improved plow steel 15．Damage to ship’s fittings caused by stevedore's negligence often happens．Therefore，the stevedores ______ the cost of the damage repaired afterwards．A．should hold responsible for B．should be held responsible forC．should be free of D．should be bearable of16．Y our vessel is equipped with totally enclosed lifeboats．Which statement is TRUE when the boat is enveloped in flames?A．The ventilators will automatically close by the action of fusible linksB．The motor takes its air supply from outside the lifeboat to prevent asphyxiation（窒息）of the crewC．A water spray system to cool the outside of the boat is operated by a high-volume manual pumpD．An air tank will provide about ten minutes of air for the survivors and the engine17．A fire starts on your vessel while refueling．Y ou should FIRST ______．A．stop the ventilation B．sound the general alarmC．determine the source of the fire D．attempt to extinguish the fire18．At the required fire drill conducted aboard a vessel，all persons must report to their stations and demonstrate their ability to perform the duties assigned to them ______．A．by the tool pusher B．in the station billC．by the person conducting the drill D．at the previous safety meeting19．The difference in tones between the displacement in salt water at summer load waterline and the light weight of the vessel is ______．A．deadweight B．gross tonnage C．net tonnage D．displacement 20．By regulation，cargo tanks must be inert before and during what operation?A．Stripping B．Loading C．Cleaning D．Crude oil washing 21．Y ou should do a ______ check to all of the cargo before shipment．A．though B．through C．thorough D．thoroughly 22．Chafing gear（防摩擦装置）is used to ______．A．anchor the boat B．pick up heavy loadsC．protect fiber rope from abrasion D．strengthen mooring lines23．TO EV ACUA TE A VESSEL FROM CREW AND PASSENGERS FOLLOWING A DISTRESSmeans ______．A. abandon vesselB. adriftC. beach toD. assembly station 24．THROWING OVERBOARD OF GOODS IN ORDER TO LIGHTEN THE VESSEL OR IMPROVE ITS STABILITY IN CASE OF AN EMERGENCY defines ______．A. Dropping offB. JettisonC. Throwing awayD. Taking off 25．A safe pilot transfer operation relies on greatly the following except ______.A. lighting at night timeB. the number of the crewmembersC. lifebuoy with self-igniting lightD. VHF communication with bridge26．In radar plotting ,CPA is the abbreviation of ______．A．closest point to approach B．close point to approachC．crossing point to approach D．coming point to approach27．The ship ______ the Atlantic to America next week．A．shall cross B．shall cross to C．cross D．sail cross28．______ 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 Bearing29．It is sometimes necessary to moor bow and stern to two mooring buoys in order to ______．A．avoid any swing in a restricted space B．shelter the ship from strong windsC．prevent to touch with other vessels D．make a convenience of cargo discharging 30．We ______ at anchor in the roadstead till the evening．A．have to ride B．have to get C．have to put D．have to make31．A vessel moored with two anchors，sometimes，at an exposed roadstead to ______．A．aid turning the ship B．obtain a fine bearingC．increase ship swings to wind or tide D．lighten the stress of anchor chains32．Every ship should hoist ______ when approaching and entering ports．A．its flashing light B．the ship's name C．its identification D．its signal letters 33．For working details ______ Admiralty list of Radio SignalA．refer B．see C．watch D．look34．In relation to the turning circle of a ship，the term advance means the distance ______．A．gained at right angles to the original courseB．gained in the direction of the original courseC．moved sidewise from the original course when the rudder is first put overD．around the circumference of the turning circle35．I have steerage way．It is said that ______．A．I am underwayB．I am out of controlC．I am not making way through the waterD．I have the amount of movement forward which the ship needs to be steered properly36．V essels are warned ______ in the area enclosed by pecked lines owing to the existence of numerous telegraph cables．A．anchor B．to anchor C．not to anchor D．not to anchoring 37．Plain language is usually used on marine weather ______．A．forecasts B．observations C．analyses D．reports38．As the temperature of an air mass decreases，the ______．A．absolute humidity（湿度）decreases B．relative humidity increasesC．specific humidity decreases D．dew point rises39．In the Northern Hemisphere，gusty winds shifting clockwise，a rapid drop in temperature，thunderstorms or rain squalls in summer (frequent rain/snow squalls in winter) then a rise in pressure followed by clearing skies，indicate the passage of a(n) ______A．warm front B．tropical cyclone C．anticyclone D．cold front 40．A generally circular low pressure area is called a(n) ______．A．cyclone B．anticyclone C．cold front D．occluded front 41．LOW A T 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of ______．A．GL WNG B．GEN SYN C．STM WNG D．T Y WNG 42．MAINLY GOOD BECOMING MODERA TE．This forecast probably refers to ______ in a certain area．A．visibility B．winds C．sea D．fog43．A shipper of cargo aboard your vessel offers a letter of indemnity for the cargo．This is done in order to obtain a(n) ______．A．clean Bill of Lading B．order Bill of LadingC．straight Bill of Lading D．through Bill of Lading44．No navigational aids are shown and chart is not kept corrected for alterations in depths inside the pecked lines．For more detailed information，the larger scale charts must be ______．A．bought B．analyzed C．consulted D．published45．In revised editions of Admiralty charts the ______ are corrected first．A．smaller scales B．larger scalesC．smaller scales and larger scales D．moderate scales46．A radio medical advice service ______ ships of all nationalities and no charge is made for this service．A．is available to B．is available for C．are available to D．are available for 47．One of the principal dangers inherent in liquefied petroleum gas is that ______．A．as it warms up it becomes heavier than air B．the way it reacts with sea waterC．its low temperature causes frostbite or freezing D．the strong odor it produces 48．Sailing directions are kept up to date by ______．A．publications B．notices to marinersC．supplements D．Annual Summary of Admiralty Notices to Mariners49．All events relating to navigation，such as ship's position，speed and details of the weather，are recorded in ______．A. LogbookB. Bell BookC. Oil Record BookD. Compass Error Book 50．A chart has extensive corrections to be made to it. When these are made and the chart is againprinted，the chart issue is a _______.A. first editionB. new editionC. revised editionD. reprint 51．Deviation is the angle between the ______．A．true meridian and the axis of the compass cardB．true meridian and the magnetic meridianC．magnetic meridian and the axis of the compass cardD．axis of the compass card and the degaussing meridian52．In which voyage，between two points，is the rhumb line distance NOT approximately the same as the great circle distance?A. The two points are in low latitudes in the same hemisphereB. The two points are in high latitudes in the same hemisphereC. The two points are near the equator，but in different hemispheresD.One point is near the equator，one point is in a high latitude，and both are near the180th meridian53． Do not _____the watch to the relieving officer until he has verbally expressed his acknowledgment of the information which has been passed by the officer handing over．A．turn over B．hand over C．take over D．hands off54．Charted depth is the ______．A. vertical distance from the tidal datum to the ocean bottom plus the height of the tide．B. vertical distance from the tidal datum to the ocean bottomC. average height of water over a specified period of timeD. average height of all low waters at a place55．Mariners proceeding across the main routes are recommended to do so at ______．A．as wide an angle as practicable B．as wide an angle so practicableC．like wide an angle as practicable D．like wide as angle so practicable56．A relative bearing is always measured from ______.A. true northB. magnetic northC. the vessel's beamD. the vessel's head 57．It may be found that，in certain circumstances，radar beacon emissions can cause ______ with the normal radar display，particularly at close range．A．unwanted interference B．unexpected figuresC．abnormal data D．unwanted information58．Radar display in which North is always at the top of the screen is a(n) ______．A．unstabilized display B．stabilized displayC．composition display D．relative display59．Refer to STCW 95: Despite the duties and obligations of pilots, their presence on board does not relieve ______in charge of the navigational watch from their duties and obligations for the safety of the ship．A．the master B．the master or officer C．quarter master D．helmsman 60．The purpose of the voyage and passage plan is to ensure that navigation is planned in adequate detail with contingency plans where appropriate to ensure safety navigation throughout the intended voyage from ______．A．anchorage to anchorage B．pilot station to pilot stationC．berth to berth D．berth to pilot station61．One of the two systems established by GMDSS for the transmission and automatic receipt of Maritime Safety Information is ______．A．Initial Distress Alerts service B．Navigational Warning serviceC．INMARSA T Safety Net service D．Meteorological Warning service62．Y our vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?A. Use the CO2 system and evacuate the engine roomB. Use the fire main system and evacuate the engine roomC. Evacuate the engine room and use the CO2 systemD. Evacuate the engine room and use the fire main system63．______ is the process by which the position of the vessel at any moment is found by applying the last well-determined position to the run that has been made since，using for this purpose the ship's course and the distance being those indicated by log．A．Dead reckoning B．Dead weight C．Dead slow ahead D．Dead slow astern 64．We'll see ______ the compasses are in good condition．A．if B．how C．when D．where65．Y our ship is steaming at night with the gyropilot engaged．Y ou 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 malfunctionB．Change to hand steeringC．Call the MasterD．Send the Quartermaster to the emergency steering station66．A vessel restricted in her ability to maneuver is one which ______．A．through some exceptional circumstance is unable to maneuver as required by the RulesB．from the nature of her work is unable to maneuver as required by the RulesC．due to adverse weather conditions is unable to maneuver as required by the RulesD．has lost steering and is unable to maneuver67．If your vessel is the stand-on vessel in a crossing situation ______.A. you must keep your course and speedB. you may change course and speed as the other vessel must keep clearC. the other vessel must keep her course and speedD. both vessels must keep their course and speed68． Every vessel which is directed by these Rules to keep out of the way of another vessel shall，if the circumstances of the case admit，avoid _______.A. crossing ahead of the otherB. crossing astern of the otherC. passing port to portD. passing starboard to starboard二．关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：While every effort is made to ensure that the data provided through the Notices to Mariners service is accurate, the user needs to be aware of the risks to corruption of data. It is important that the user should only use the data on suitable equipment and that, other applications should not be running on the user’s machine at the same time. Users should exercise their professional judgement in the use of data, and also consult the Mariners Handbook (NP100) for further details. The user needs to be aware that there is a possibility that data could be corrupted during transmission, or in the process of display or printing on the user’s equipment, or if converted to other software formats, and is accordingly advised that the UKHO cannot accept responsibility for any such change, or any modifications or unauthorised changes, made by licensees, or other parties.69．The data may become corrupted in any of the following process except _______.A. during transmissionB. in the display or printing on the user’s equipmentC. in converting to other software formatsD. in air mail delivery to the readers70．The use of the data is advised to consult _______ for further details.A. Mariners HandbookB. Sailing DirectionsC. Guide to Port EntryD. Notices to Mariners71．Of the following items _______ is not mentioned for which UKHO will accept no responsibility.A. change in the process of display or printingB. unauthorised changes made by licensees or other partiesC. modifications made by licensees or other partiesD. professional amendments．72．It is implied that _______.A. the data are incorrectB. the data are to be corrected intensivelyC. although the data are accurate enough, you are still advised to use it with cautionD. not to use it if you have not enough time or proper equipment to effect necessary correction 第二组：At about 0355, the second mate ended his radio conversation and went to the chart table to write up the log. With the second mate apparently busy, the seaman on watch attempted to identify the lights on the other vessel. When he returned to the bridge front, he suddenly saw a mast, with lights on it, passing extremely close to the starboard side and called out in alarm to the second mate. The second mate immediately engaged manual steering and applied 15° of port rudder. The seaman went to the starboard bridge wing from where he saw a vessel about two ship lengths astern. The second mate and the seaman had apparently not heard or felt any impact and they assumed that the other vessel had passed clear. The second mate heard the fishing vessel’s calls to the ship on VHF, but he did not acknowledge them. He also heard its communications with Brisbane Radio, but he did not respond. About 0750, the agent of the ship had been informed by the Brisbane harbour master that the ship had been in a collision with the fishing vessel.73．There were _______ persons on the bridge when the accident occurred.A. 1B. 2C. 3D. 474．It is inferred that the 2/O was _______ when the close quarter situation was developing.A. talking over VHF with the fishing shipB. not keeping a proper lookout, and allowed himself to be distracted by his radio conversationwith his friendC. engaging himself in other things which are more urgent at the momentD. keeping a proper lookout but failed to identify the fishing ship75．It can be concluded that ______.A. the two ships did not collided each otherB. the two ships collided each other, but none of them acknowledged the accidentC. only the fishing ship acknowledged the accident at the momentD. only the big ship acknowledged the accident at the moment76．Of the following, ______ is not likely to be the contributing factor of the accident.A. the second mate was not keeping a proper look out at the momentB. the seaman did not report to 2/O what he sawC. the fishing ship was not keeping a proper look out at the momentD. in the night it was too dark or too difficult for the crew members to identify each other。
(整理)航海学40期(真题)
1.地理经度是以______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2.地理纬度是建立在______基础上的。
A．地球椭圆体B．地球圆球体C．地球椭球体Ｄ．球面直角坐标系3.已知到达点纬度为26°24＇.6N，两地间纬差为08°06＇.2N，则起航点纬度为：A. 18°18＇.4NB. 15°47＇.8NC. 34°30＇.8ND. 15°12＇.2N4.地球上某点纬度为40°N，经度为120°E，则它与赤道面的对称点经纬度分别为：A. 60°S，120°EB. 40°S，120°EC. 40°N，060°WD. 40°S，060°W5.罗经点方向E/S换算成圆周方向为：A. 045°B. 101°.25C. 035°D. 168°.756.测者东西线是由什么面确定的？A. 测者卯酉圈平面与测者子午圈平面B. 测者东西圈平面与测者卯酉圈平面C. 测者地面真地平平面与测者子午圈平面D. 测者地面真地平平面与测者卯酉圈平面7.某船真航向300°，测得某物标真方位350°，则该物标的相对方位（舷角）为：A. 350°B. 50°右C. 50°左D. 290°右8.某船陀罗航向140°，陀罗差2°E，测得某物标陀罗方位350°，则该物标舷角为：A. 210°C. 148°左D. 212°9.某轮陀罗航向315°，陀罗差2°W，测得某物标舷角030°时，该物标真方位为：A. 345°B. 343°C. 347°D. 283°10.真航向358°，磁差5°E，自差11°W，则罗航向为：A. 004°B. 351°C. 352°D. 014°11.某地磁差资料为：磁差偏东0°30＇（1989），年差＋2＇.0，则该地1999年的磁差为：A. 0°50＇EB. 0°10＇EC. 0°10＇WD. 0°32＇E12.航海上，公式De（n mile）=2.09 是用于计算______。
《航海学》题库
二等远洋职务船员《航海学》试题库一、是非题；1.（O）地球椭圆体某点的法线在赤道上夹角称为该点的地理纬度。
2.（O）基准经度线与测者经线在赤道上夹的弧称为经度。
3.（X）度量经度的起算线是赤道。
4.（X）地球的第一近似体是椭球体。
5.（O）到达点在起航点的东面，经差的名称为东。
6.（O）到达点在起航点西面，经差符号为西。
7.（X）已知起始点纬度65°08ˊ5N，到达点纬度44°48ˊ1S则纬度差为20°20ˊ4S8.（O）经差不能大于180°当计算结果大于180°时，则应该用360°相减,符号方向相反。
9.（X）N/W换算圆周法方向为315°。
10.（O）N35°W的圆周方位是325°。
11.（O）NNE换算为圆周法方向022°5。
12.（O）物标正横时，其方位线与航向线一定互相垂直。
13.（X）某轮真航向320度，左正横某物标，该物标真方位为220度。
14.（O）真北线与物标方位线之间的夹角称为物标真方位。
15.（X）某物标方位为N125°W，其圆周方位为055°。
16.（O）某一物标的方位为S125°E其圆周方位为055°17.（X）某轮真航向045°，发现物标的左舷角130°，则判断该物标真方位085°18.（O）某轮真航向255°，当物标右正横时，其方位为345°。
19.（O）陀螺罗经能为雷达、自动舵等提供指北信息。
20.（O）陀螺罗经误差主要随航速和所处纬度的变化而变化，与航向等无关。
21.（O）陀螺北偏开真北角度称为陀螺罗经差。
22.（O）罗经差为0°，用罗经测得的物标方位等于真方位。
23.（X）某物标真方位001°，当地磁差5°E，自差为0°,则该物标的罗方位006°.24.（O）某轮以CC=300°航行，测得物标甲的真方位TB=037°，舷角100°，当地磁差 Var=-5°，自差为2°E。
2023年海船船员考试航海学(船长)试卷(练习题库)
海船船员考试航海学(船长)试卷(练习题库)1、基准比例尺可能是图上各个局部比例尺的平均值，或者是（）。
2、当比例尺很小时，能够分辨出的图上最小距离所代表的实际距离也就越大，海图的精度也就越差，这种相当于海图3、比例尺越大，海图的海图的极限精度越（）。
4、水深是海图深度基准面至海底的深度，凡海图水面上的数字均表示水深。
其中水深浅于21m的注至（）。
5、凡危险物外加点线圈者，均为对水面航行有碍的危险物，提醒航海者予以特别注意。
那么在情况下，则加注疑位（6、英版海图图式或表示（）。
7、中版海图图式表示（）。
8、中版图式表示（）。
9、英版图式表示（）。
10、适淹礁是指（）。
11、英版海图图式中，缩写WK代表（）。
12、等明暗光的灯光是指（）。
13、英版图式的Oc，它的灯质是（）。
14、英版图式中的Iso的灯质是（）。
15、英版图式中的Fl（3）的灯质是（）。
16、英版图式中的LFl的灯质是（）。
17、英版图式中的VQ的灯质是（）。
18、英版图式中的UQ的灯质是（）。
19、英版图式中的IUQ的灯质是（）。
20、英版图式中的FFl的灯质是定闪光，是指（）。
21、灯质AlFlRW表示（）。
22、灯质AlRW表示（）。
23、灯质FlRW表示（）。
24、英版灯标表中某一灯标的灯质为Alwr，在备注栏中标有040°～275°（235°），说明在该灯的（）25、英版海图上有图式★Fl（3）10s25m16M，夜间航经该处的船舶可以（）。
26、英版海图上有图式★Fl（2）5s10m11M，表明该灯（）。
27、英版海图上有图式★LFl10s10m11M，表明该灯（）。
28、英版海图上某灯标标注的灯质为F&Fl，表示（）。
29、英版海图图式中，缩写LtHo代表（）。
30、注记临（temp），表示临时的灯，熄（exting）表示（）。
31、根据船舶要求，能其方位和距离的是（）。
32、（）表示能连续发射信号的雷达信标。
航海类（甲类）三副-《航海学》历届真题第47期
航海类（甲类）三副-《航海学》历届真题第47期中华人民共和国海事局2009 年第1 期海船船员适任统考试题（总第47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）1．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2．某船由20o S，170o W 航行争20o N，170o E，则该船经差和纬差的方向分别为__________。
A．E 经差、N 纬差B．E 经差、S 纬差C．W经差、N 纬差D．W 经差，S 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 Eastward"字样。
GPS 的经、纬度读数为：30o40.’2S，15o12.15W。
则用于海图上定位的数据应为：A．30o41.’3S，15o12.’9W B．30o40.’0S，15o11.’5WC．30o39.’2S，15o12.’3W D．30o38.’1S，15o11.’1W４．半圆周法方向换算为圆周按方向的法则是__________A．在SE 半圆，圆周度数等于180o加上半圆度数B．在NE 半圆，圆周度数等于360o减去半圆度数C．在SW 半圆，圆周度数等于180o减去半圆度数D．在NW 半圆，圆周度数等于360o减去半圆度数５．我船航向060o，某船位于我船右舷10o，距离8海里，若该船航向220o，两船保向保速，则5 分钟后，我船位于该船舷角（圆周法度量）___________A．增大B．减小C 不变D．不确定６．陀螺航向是__________A．真北和航向线之间的夹角B．真北和方位线之间的夹角C．陀螺北和航向线之间的夹角D．陀螺北和方位线之间的夹角７．某地磁差资料为：磁差偏西0o30’（1997），.年差一2.’0，则该地2007年的磁差为___________ A．0o10’E B．0o10’W C．0o50’W D．0o50’E８．某轮由50o S 纬线向北航行，无航行误差，计程仪改正率为0.0％，则1h 后推算船位位于实际船位的_________（不考虑风流影响）。
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中华人民共和国海事局2005年第3期海船船员适任证书全国统考试题（总第38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. 纬度是以_____作为基准线计量的。
A. 赤道B. 等纬圈C. 格林经线D. 测者经线2. 每年12月22日，对于纬度10°N的测者来说太阳中天高度和方位各为：A.H=76°33′；A=0°B.H=56°33′；A=0°C.H=56°33′；A=180°D.H=76°33′；A=180°3. 已知到达点纬度为30°11＇.8N，两地间纬差为38°07＇.8N，则起航点纬度为：A. 20°19＇.6NB. 08°04＇.0NC. 07°56＇.0SD. 08°04＇.0S4. 天体圆周方位为310°，测者纬度为10°N，化为半圆方位应为：A. 10°NEB.130°SWC.50°NWD.130°SE5. 罗经点方向SW/S换算成圆周方向为：A. 258°.75B. 236°.25C. 213°.75D. 191°.256. 测者南北线是由什么面确定的？A. 测者真地平平面与测者子午圈平面B. 测者真地平平面与测者卯酉圈平面C. 测者地面真地平平面与测者子午圈平面D. 测者地面真地平平面与测者卯酉圈平面7. 某船真航向300°，测得某物标真方位350°，则该物标的相对方位（舷角）为：A. 350°B. 50°右C. 50°左D. 290°右8. 有A、B二张墨卡托图，A图上10 N纬线到赤道的子午线图长为601.5mm，B图上10 N 纬线到赤道的子午线图长为621mm,则两图的基准比例尺：A.A图一定比B图大B.B图一定比A图大C.A图与B图相等D.视两图的基准纬度而定9. 某船真航向120°，该船右正横某物标的真方位为：A. 210°B. 30°C. 030°D. 090°10. 某地磁差资料为：Var. 0°40＇W（1979），increase about 2＇.5 annually，则该地1999年的磁差为：A. 1°05＇WB. 0°15＇WC. 1°30＇WD. 0°10＇E11. 若已知某轮罗航向CC＝000°，磁差Var＝2°W，罗经差ΔC=1°W，则该轮真航向为：A. 357°B. 359°C. 001°D. 003°12. 1月6日区时0350，船舶位于经度等于66°20′E处，则世界时为：A.2250 5/1B.2350 5/1C.0750 6/1D.0850 6/113. 航海上，公式DO（n mile）=2.09 ＋2.09 是用于计算：A.测者能见地平距离B.物标能见地平距离C.物标地理能见距离D.雷达地理能见距离14. 某轮由45°N纬线向北航行，无航行误差，计程仪改正率为0.0%，则1h后实际船位位于推算船位的（不考虑风流影响）：A. 北面B. 南面C. 同一点D. 不一定15. 某船沿赤道航行，已知计程仪改正率0.0%，无航行和推算误差，则在海图上按计程仪航程推算的船位比实际船位（不考虑风流影响）：A. 超前B. 落后C. 一致D. 不一定16. 天球上的仰极是：A. 天极B. 天北极C. 天南极D. 与测者纬度同名的天极17. 过两天极且通过_____的半个大圆称为测者午圈。
A. 天体B. 测者地理位置C. 天底D. 天顶18. 某日太阳视半径等于16 ＇.0，利用太阳测定六分仪指标差等于－3 ＇.4，下列哪组上、下切读数的观测值是正确的？A. －12 ＇.6，＋19 ＇.4B. －28 ＇ .6，＋35 ＇.4C. ＋12 ＇.6，－19 ＇ .4D. ＋28 ＇.6，－35 ＇.419. 已知地方时角LHA = GHA±λEW ，用该式求得的地方时角是：A. 天体半圆时角B. 天体圆周时角C. 天体象限时角D. 以上均错20. 英版灯标表中某一灯标资料的备注栏中标有“Ｗ040 ～175 (135 )，Ｒ175 ～220 (45 )”，说明该灯是：A.互光灯，在不同的区域看到不同颜色的灯光B.互光灯，在所标的区域内可看到红、白交替的灯光C.光弧灯，在不同的区域看到不同颜色的灯光D.光弧灯，在所标的区域内可看到红、白交替的灯光21. 等角横圆柱投影，即高斯-克吕格投影，在航海上常被用来绘制：A. 半球星图B. 大圆海图C. 墨卡托航用海图D. 大比例尺港泊图22. 墨卡托海图上各条纬线的纬度渐长率是：A. 固定不变的B. 随经度的变化而变化C. 随局部比例尺的变化而变化D. 随海图比例尺的变化而变化23. 英版海图上有图式“★Fl(2) 5s 10m 11M”，表明该灯：A.每隔5秒闪光2次，射程为10 n．mileB.每隔5秒闪光1次，2次10秒C.灯高11米，射程为10 n．mileD.灯高10米，射程为11 n．mile24. 海图底质注记中，缩写“S.M.”表示：A. 分层底质，上层为沙，下层为泥B. 分层底质，上层为泥，下层为沙C. 沙的成分多于泥的成分的混合底质D. 泥的成分多于沙的成分的混合底质25. 灯质“AlFlRW”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. 英版海图和灯标表中所标射程仅与______有关。
A. 测者有关和灯塔灯高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27. 拟定航线时，应尽可能选择______的航用海图。
A. 新版大比例尺B. 新版小比例尺C. 现行版大比例尺D. 现行版小比例尺28. 海图改正时，对临时性通告和预告性通告应：A. 用红墨水笔改正，并在小改正处作好登记B. 用铅笔改正，并在小改正处作好登记C. 用红墨水笔改正，并在小改正处另起一行登记D. 用铅笔改正，并在小改正处另起一行登记29. 我国海区水上助航标志制度表示航标特征的方法有：①标色②标形③顶标④光色和光质⑤音响⑥无线电信号A.①②③B.①②③④C.①②③④⑤D. ①②③④⑤⑥30. 船舶定线制的主要内容之一是：A. 疏理同向或接近同向的交通流B. 分隔小角度交叉相遇的交通流C. 引导特殊水域的交通流D. 分隔各转向点附近的交通流31. 夜间某船驶近我国某海港，看见一红色联闪光灯浮，表明：A. 该标为左侧标，应将其置于本船左舷B. 该标为左侧标，应将其置于本船右舷C. 该标为右侧标，应将其置于本船左舷D. 该标为右侧标，应将其置于本船右舷32. 根据IALA浮标制度规则规定，下列哪些国家属于A区域？①日本②韩国③菲律宾④南北美洲⑤欧洲⑥非洲A. ①②③B. ①②③④C. ④⑤⑥D. ⑤⑥33. IALA浮标制度规则规定，B区域推荐航道左侧标的特征为：A. 红色锥形，中间有一条或多条绿色横纹B. 红色罐形，中间有一条或多条绿色横纹C. 绿色锥形，中间有一条或多条绿色横纹D. 绿色罐形，中间有一条或多条红色横纹34. 新危险物浮标可用雷达应答器，其摩尔斯编码为字母：A. DB. XC. ND. W35. 中版《航海图书目录》可用于：A. 查阅某航线所需航用海图B. 查阅某航线所需航海图书C. 检验船上海图和航海图书是否适用D. 以上都是36. 中版《航海通告》某通告末尾“海图22154（2）[99－585]”方括号内数字是指：A. 该通告的改正项目总数B. 该海图应改正的项目编号C. 该海图上次应改正的通告号码D. 该海图的新版次数37. 中版《航海通告》中，标题栏内容后括注“临”字样通告是：A. 临时性通告B. 预告性通告C. 参考性通告D. 基于原始信息的通告38.《世界大洋航路》中所提供的推荐航线适用于中等吃水并满足下列哪项条件的机动船？A. 高速船或能保持15kn或15kn以上海上速度的船舶B. 中速船或能保持10kn ～15kn海上速度的船舶C. 低速船或由于被拖带或损坏而降低到10kn以下海上速度的船舶D. 以上都正确39. 英版《航路指南》各卷第一章的主要内容有：①一般航海知识和规则②国家与港口③自然条件④重要注意和警告⑤航线设计知识⑥水文气象条件A. ①②③B. ①②③④C. ①②③④⑤D. ①②③④⑤⑥40. 英版《灯标和雾号表》标注某灯标额定光力射程为14 n mile，如当时的实际气象能见度为6 n mile，则该灯标灯光实际能见距离：A. 等于6n mileB. 大于14 n mileC. 等于14 n mileD. 小于14 n mile41. 要了解雷达航标的资料，应查阅：A. 英版《无线电信号表》第一卷B. 英版《无线电信号表》第二卷C. 英版《无线电信号表》第六卷D. 英版《航路指南》42. 要了解无线电医疗咨询方面的有关资料，应查阅：A. 英版《无线电信号表》第一卷B. 英版《无线电信号表》第二卷C. 英版《无线电信号表》第六卷D. 英版《航路指南》43. 某船2002年5月航行于英版海图的某个罗经花附近，罗经花上有下列数据：0 30ˊE 1992（6ˊW）。
则当时该地的磁差Var为：A.1 30ˊEB.1 30ˊWC.0D.0 30ˊW44. 国际海事组织(IMO)和国际水道测量组织(IHO)的全球性航海警告系统（NA V AREA）将全球划分为_____个航海警告区。
A. 16B. 18C. 26D. 3645. 海图通常应根据______及时加以改正。
①航海通告②无线电航海警告③补遗和勘误表④补篇A.①B.①②C.①②③D.①②③④46. 英版航路设计图投影原理为_____，其上直线代表______。
A. 墨卡托投影，大圆弧B. 心射投影，大圆弧C. 墨卡托投影，恒向线D. 心射投影，恒向线47. 下列有关空白定位图使用的说法中，何者错误？A. 空白定位图无经度读数，适用于任何经度区域B. 空白定位图无纬度读数，适用于任何纬区C. 空白定位图上下倒置，可分别适用于南北半球相应的纬区D. B、C都错48. 航迹推算是：①天文定位和无线电航仪器定位的基础②驾驶员在任何条件下, 任何时刻求取船位的基本方法③驾驶员了解船舶在海上运动轨迹的基本方法A. ①③B. ①②C. ②③D. ①②③49. 航迹绘算法是根据什么资料在海图上作图, 画出推算航迹和定位的?A. 方位、航程和气象资料B. 航向、方位、距离和风流资料C. 航向、航程和气象资料D. 航向、航程和风流资料50. 航迹绘算法与航迹计算法比较：A. 航迹绘算法简单直观, 是航迹推算的主要方法B. 航迹绘算法求得的船位精度比航迹计算法高C. 航迹绘算法可在任何情况下使用D. A、B、C都对51. 某船真航向090 °，海区内N风转NW风，风力不变，则船舶风压差：A. 变小B. 变大C. 先变小再变大D. 先变大再变小52. 某轮从10 °30′S、115 °30′W航行到20 °30′S、130 °30′W，则应驶的航向为：A. 124 ° .7B. 235 ° .3C. 304 ° .7D. 055 ° .353. 某轮由50 °S、179 °W起航，先向正北、后向正西各航行300 n mile后，到达点经度应为：A. 186 °04′WB. 006 °04′WC. 173 °56′ED. 176 °E54. 某轮计划航向005 °，当地磁差13 °E，自差4 °W，NE风7级，风压差取5 °。