单选题Isogonic lines are lines on a chart indicating （）.Apoints of equal variationBpoints of zero variationCthe magnetic latitudeDmagnetic dip
单选题
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
参考解析
解析：
暂无解析
相关考题：
Where in the passage does the author compare the energy consumption of skyscrapers with that of a city?A. Lines 5-8.B. Lines 14-15.C. Lines 20-22.D. Lines 23-25.
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.boughtB.analyzedC.consultedD.Published
An organization chart is used ()A. to show exact figuresB. to show lines of authorityC. to illustrate a procedure
表达式 writelines(lines) 能够将一个元素是字符串的列表 lines 写入文件,以下 选项中描述正确的是()。 A、列表 lines 中各元素之间无分隔符B、列表 lines 中各元素之间默认采用逗号分隔C、列表 lines 中各元素之间默认采用换行分隔D、列表 lines 中各元素之间默认采用空格分隔
All straight lines represent great circle tracks on a chart based on a(n) ______.A.Mercator projectionB.polyconic projectionC.orthographic projectionD.gnomonic projection
Isogonic lines are lines on a chart indicating ______.A.points of equal variationB.points of zero variationC.the magnetic latitudeD.magnetic dip
Lines on a chart which connect points of equal magnetic variation are called ______.A.magnetic latitudesB.magnetic declinationsC.dipD.isogonic lines
How is the annual rate of change for magnetic variation shown on a pilot chart? ______.A.Gray lines on the uppermost inset chartB.Red lines on the main body of the chartC.In parenthesis on the lines of equal magnetic variationD.Annual rate of change is not shown
No 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 toB.appreciatedC.met withD.concerned
在岸上，缆绳挽牢在系缆桩上。（）A、On a vessel ,lines are made fast on bollards .B、On shore, lines are made fast on bollards .C、On board , lines are made fast on bitts.D、On board, lines are made fast on bollards .
The （）(系泊缆绳)consist of a head line ,two breast lines, two spring lines and a stern line.A、moor linesB、mooring linesC、unmoor linesD、unmooring lines
及时调整缆绳。（）A、Adjust the mooring lines on time.B、Adjust the mooring lines in time.C、Adjust the mooring lines quickly.D、Adjust the mooring lines slowly.
单选题No navigational aids are shown and chart is not kept（）for alterations in depths inside the pecked lines joining Hurst pt. to Warden pt.AaccurateBcorrectCcorrectedDaccuracy
单选题No 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（）.Areferred toBappreciatedCmet withDconcerned
单选题Two mooring lines may be placed on the same bollard and either one cast off first if（）.Athe eye of the second line is dippedBthe mooring lines are doubledCthe bollard has two hornsDone of the lines is a breast line
单选题What is likely to occur when you are surging synthetic mooring lines on the gypsyhead during mooring operations?（）AThe lines may jam and then jump off the gypsyheadBIf there is sudden strain on the line，the man tending the line may be pulled into the gypsyheadCThe lines' surging may cause the vessel to surgeDThe heat generated may cause the lines to temporarily fuse to the gypsyhead
单选题Lines on a chart which connect points of equal magnetic variation are called （）.Amagnetic latitudesBmagnetic declinationsCdipDisogonic lines
单选题The International Load Line Certificate is a document indicating （） of the various load lines of the vessel．AdecksBcabinsCholdsDpositions
单选题How is the annual rate of change for magnetic variation shown on a pilot chart?（）AGray lines on the uppermost inset chartBRed lines on the main body of the chartCIn parenthesis on the lines of equal magnetic variationDAnnual rate of change is not shown
单选题Which information is found in the chart title（）.AA rhumb line appears as a straight lineBDistance is measured at the midlatitude of the track lineCMeridians appear as curved lines converging toward the nearer poleDParallels，except the equator，appear as curved lines
单选题All straight lines represent great circle tracks on a chart based on a(n) （）.AMercator projectionBpolyconic projectionCorthographic projectionDgnomonic projection
单选题What is the basic principle of the magnetic compass（）.AMagnetic materials of the same polarity repel each other and those of opposite polarity attractBThe Earth's magnetic lines of force are parallel to the surface of the EarthCMagnetic meridians connect points of equal magnetic variationDThe compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth
单选题What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.AThey mark the limits of breakers in that areaBThese lines warn the mariner of submerged rocksCThey mark the boundary lines of fish trap areasDThese lines warn the mariner of submerged pipelines
单选题When moored with a Mediterranean moor，the ship should be secured to the pier by having（）.Aa stern line and two quarter lines crossing under the sternBa stern line，2 bow lines，and 2 quarter lines leading aft to the pierCall regular lines leading to the pier in opposition to the anchorDtwo bow lines and two midship lines leading aft to the pier
单选题Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）ACrossing the spring linesBSlacking all forward running lines while keeping all after running lines tautCDoubling up on spring or breast linesDSlacking bow and stern lines
单选题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（）.AboughtBanalyzedCconsultedDpublished
单选题在岸上，缆绳挽牢在系缆桩上。（）AOn a vessel ,lines are made fast on bollards .BOn shore, lines are made fast on bollards .COn board , lines are made fast on bitts.DOn board, lines are made fast on bollards .