1、- 0 -一、 海图及海图作业 50 题251To agree with larger scale chart，latitudes taken from this chart should be increased _ about 8 seconds A. with B. in C. by D. to 252On this chart only the principle _ to navigation are shown A.equipments B.tools C.apparatus D.aids253Many of the soundings shown on the chart are
2、 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 254Lines on a chart which connect points of equal magnetic variation are called _. A.
3、magnetic latitudes B. magnetic declinations C. dip D. isogonic lines 255Isogonic lines are lines on a chart indicating _. A. points of equal variation B. points of zero variation C. the magnetic latitude D. magnetic dip 256In which source could you find the number of a chart for a certain geographic
4、 area? _. A. Chart No. 1 B. Catalog of Charts C. IMO Practical Navigator D. IMO Light List 257How 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 equ
5、al magnetic variation D. Annual rate of change is not shown. 258Charted 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 perio
6、d of time D.average height of all low waters at a place 259Chart correction information is NOT disseminated through the _. A. Summary of Corrections B. Local Notice to Mariners C. Daily Memorandum D. Chart Correction Card 260All straight lines represent great circle tracks on a chart based on a(n) _
7、. A. Mercator projection B. polyconic projection C. orthographic projection D. gnomonic projection 261A 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.
8、when a low-stock situation occurs and minor corrections are made D. every two years to update the magnetic variation information 262A Mercator chart is a _. A. cylindrical projection B. simple conic projection C. polyconic projection D. rectangular projection 263_ chart 3994，positions read from this
9、 chart should be shifted 0 03 minutes Northward A. To consider B. To check C. To examine D. To agree with 264The changes in the channels 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
10、 265_ is a term denoting the determination of a ships 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 266A chart position enclosed by a semi-circle is a(n) A. fix B. estimated posi
11、tion C. dead reckoning position D. running fix 267A 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 268Admiralty Charts are published in _. A. USA B. China C. UK D. Japan 269Attention is _ the advice on the use of c
12、harts in The Mariners Handbook Chapter 3，Section 1 A. fixed to B. needed for C. pushed to D. drawn to 270Distance 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 sc
13、ale at the midlatitude of the chart D. latitude or longitude scale at the middle of the scale 271Entering 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
14、 D. white square with the letters GR 272Magnetic 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 273My position has been obtained _ astronomical observation A. with B. from C. on D. b
15、y 274Navigational 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 275On the south and the east coasts of Block Island are circles with a dot in the center and labeled CUP.
16、 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 276Solid green arrows on the main body of a pilot chart indicate _. A. prevailing wind directions B. prevailing
17、ocean current directions C. probable surface current flow D. shortest great circle routes 277The 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
18、278The 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 279The chart of a beach are
19、a 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 280The chart symbol indicating that the bottom is coral is _. A. C B. Cl C. Co D. c 281The charts sold are of _. A. n
20、ewly 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 w
21、riting 282The compass rose on a nautical chart indicates both variation and _. A. deviation B. annual rate of variation change C. precession D. compass error 283The description Racon beside an illustration on a chart would mean a _. A.radar conspicuous beacon B.circular radiobeacon C.radar transpond
22、er beacon D.radar calibration beacon 284The maximum difference between mean time and apparent time is _. A. equal to the longitude expressed in time units B. about 16 minutes - 1 -C. the difference between the GHA of mean sun and the first point of Aries D. 15of arc 285The numeral in the center of a
23、 wind rose circle on a pilot chart indicates the _. A. total number of observations B. average wind force on the Beaufort scale C. average wind force in knots D. percentage of calms 286The only cylindrical chart projection widely used for navigation is the _. A. Lambert conformal B. Mercator C. azim
24、uthal D. gnomonic 287The path that a vessel is expected to follow，represented on a chart by a line drawn from the point of departure to the point of arrival，is the _. A.DR plot B.track line C.heading D.estimated course 288The revision date of a chart is printed on which area of the chart? A. Top cen
25、ter B. Lower-left corner C. Part of the chart title D. Any clear area around the neat line 289The soundings on the chart are based on the depth of water available at _. A. mean low water B. mean lower low water C. mean high water D. mean high water springs 290The survey information upon which a char
26、t is based is found _. A. at the top center of the next line B. near the chart title C. at the lower left corner D. at any convenient location 291The symbol which appears beside a light on a chart reads Gp Fl R (2) 10 sec 160 ft 19M. Which characteristic describes the light? A. It is visible 10 mile
27、s. B. Its distinguishing number is 19M. C. It has a radar reflector. D. None of the above 292What defines a great circle? A. A curved line drawn on a Mercator Chart B. A course line that inscribes a loxodromic curve C. The shortest distance between any two points on the earth D. The smallest circle
28、that can be drawn on the face of a sphere 293What 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 294What information is NOT found in t
29、he chart title? A. Survey information B. Scale C. Date of first edition D. Projection 295What is NOT an advantage of the rhumb line track over a great circle track? A. Easily plotted on a Mercator chart B. Negligible increase in distance on east-west courses near the equator C. Does not require cons
30、tant course changes D. Plots as a straight line on Lambert conformal charts 296What is the major advantage of a rhumb line track? A. The vessel can steam on a constant heading (disregarding wind，current，etc.). B. The rhumb line is the shortest distance between the arrival and departure points. C. It
31、 is easily plotted on a gnomonic chart for comparison with a great circle course. D. It approximates a great circle on east-west courses in high latitudes. 297When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found? A. Light List
32、B. Notice to Mariners C. On the chart D. Coast Pilot 298When navigating in high latitudes and using a chart based on a Lambert conformal projection，_. A. a straight line drawn on the chart approximates a great circle B. the chart should not be used outside of the standard parallels C. the course ang
33、le is measured at the mid-longitude of the track line D. distance cannot be measured directly from the chart 299When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to _. A. the meridian through the object of the bearing B. the meridian through the
34、 ships position C. the meridian midway between the ship and the object D. any meridian 300Which aid is NOT marked on a chart with a magenta circle? A. Aero light B. Radar station C. Radar transponder beacon D. Radiobeacon 二、航海通告与警告 50 题301To _ Admiralty Charts 438，latitudes taken from this chart sho
35、uld be increased by about 5 seconds A.convert to B.come to C.look at D.agree with 302The chart you supplied was anything _ up to date A. but B. except C. beside D. apart from 303The Admiralty Notices to Mariners can be obtained _ by Masters of vessels from any Admiralty Chart Agent A. free of charge
36、 B. with no responsibility C. without limitations of distribution D. with little charges 304Positions read from this chart should，to agree with chart 3949，be _ 003 minutes Northwards and 022 minutes Westwards A. shifted B. removed C. changed D. altered 305Positions read from this chart should be mov
37、ed 008 minutes Southward and 013 minutes Eastward so as _ adjoining chart 344， A. to agree upon B. in accordance with C. to be same as D. to agree with 306Owing to old data of the survey the positions and number of the beacons shown on this chart are not to beA.considered B.insured C.relied upon D.s
38、uspected 307No navigational aids are shown and the chart is not kept corrected for alterations in depths inside the pecked lines For more detailed information，the larger scale charts must be _. A.referred to B.appreciated C.met with D.concerned 308Navigational charts are subject to frequent changes，
39、the important ones of which are promulgated by A. Admiralty Notices to Mariners B. Mariners Handbook C. Catalogue D. Sailing Directions 309Contour elevations on this chart refer to heights in feet above mean _. A. lower low water B. high water C. low water D. sea level 310Charts are subject to frequ
40、ent correction according to _. A. Notices to Mariners B. Mariners handbook C. Sailing Directions D. Guide to Port Entry 311A chart has extensive corrections to be made to it. When these are made and the chart is again printed，the chart issue is a _. A. first edition B. new edition C. revised edition
41、 D. reprint 312_ are published for the correction of Admiralty Charts A. Admiralty Sailing Directions B. Admiralty List of Signals C. Mariners Handbook D. Admiralty Notices to Mariners 313_ is not contained in the NM Weekly. A. Amendments to Admiralty Sailing Directions B. Amendments to Admiralty Li
42、st of Lights and Fog Signals C. Amendments to Admiralty List of Radio Signals D. Supplement to Guide to Port Entry 314The heights and soundings of Admiralty chart are expressed _ in Fathoms _ in Meters A.either，or B.neither，nor C.another，nor D.other，or 315_ day，pilot flag should be displayed from ma
43、in mast A. From B. By C. on D. With 316_ objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility A.Conspicuous B.Permanent C.Preliminary D.Temporary 317A marker pole，with a horseshoe buoy and a sea anch
44、or attached，should be used to _. A. mark the position of a lost mooring B. determine your vessels sideslip underway C. determine your speed through the water - 2 -D. indicate location of a man overboard 318A stand-on vessel in a crossing situation is allowed to take action when _. A. on a collision
45、course B. the vessels will pass within one mile C. it becomes apparent to her that the give-way vessel is not taking appropriate action D. the relative speed of the vessels indicates collision in less than six minutes 319A steep barometric gradient indicates _. A.calms B.light winds C.strong winds D
46、.precipitation 320A storm is forecast for the area where your vessel is moored. For its safety you should put _. A. more slack in the mooring lines B. a strain on the mooring lines C. chafing gear on the mooring lines D. grease on the mooring lines 321Admiralty Notices to Mariners are published _. A
47、.every day B.every week C.every month D.every year 322Admiralty Notices to Mariners，containing important information for the mariners and enabling them to keep their charts and books corrected for the latest information，are issued daily and published in _. A. Weekly Editions B. Quarterly Editions C. Annual Editions D. Monthly Editions 323Advise _ your fishing gear A. you recovery B. you recover C. you recovering D. you recover
