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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
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更多 “ 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 ” 相关考题
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The annual change in______is －0.2 degree east in this water area.A.mean high waterB.marine insuranceC.magnetic variationD.maritime accident
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A pilot chart does NOT contain information about ______.A.average wind conditionsB.tidal currentsC.magnetic variationD.average limits of field ice
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A revised print of a chart is made ______.A.after every major hydrographic survey of the area covered by the chartB.when there are numerous corrections to be made or the corrections are extensiveC.when a low-stock situation occurs and minor corrections are madeD.every two years to update the magnetic variation information
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The agonic line on an isomagnetic chart indicates the ______.A.magnetic equatorB.magnetic longitude reference lineC.points where there is no variationD.points where there is no annual change in variation
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The compass rose on a nautical chart indicates both variation and ______.A.deviationB.annual rate of variation changeC.precessionD.compass error
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Isogonic lines are lines on a chart indicating ______.A.points of equal variationB.points of zero variationC.the magnetic latitudeD.magnetic dip
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Lines on a chart which connect points of equal magnetic variation are called ______.A.magnetic latitudesB.magnetic declinationsC.dipD.isogonic lines
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Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading
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单选题The agonic line on an isomagnetic chart indicates the （）.A
magnetic equatorB
magnetic longitude reference lineC
points where there is no variationD
points where there is no annual change in variation
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单选题A revised print of a chart is made （）.A
after every major hydrographic survey of the area covered by the chartB
when there are numerous corrections to be made or the corrections are extensiveC
when a low-stock situation occurs and minor corrections are madeD
every two years to update the magnetic variation information
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单选题If a magnetic compass is not affected by any magnetic field other than the Earth’s，which statement is TRUE? （）A
Compass error and variation are equalB
Compass north will be true northC
Variation will equal deviationD
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单选题Lines on a chart which connect points of equal magnetic variation are called （）.A
magnetic latitudesB
magnetic declinationsC
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sea conditionsC
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It is fasterB
It is slowerC
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单选题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
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variationB
true directionsC
magnetic directionsD
annual rate of variation change
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deviationB
annual rate of variation changeC
precessionD
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compass north and magnetic northB
compass north and true northC
magnetic meridian and the geographic meridianD
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reduce the variation as much as possibleB
reduce the deviation as much as possibleC
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单选题How is variation indicated on a small-scale nautical chart?（）.A
Magnetic compass tableB
Magnetic meridiansC
Isogonic linesD
Variation is not indicated on small-scale nautical charts
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单选题Compass error is equal to the（）.A
deviation minus variationB
variation plus compass courseC
combined variation and deviationD
difference between true and magnetic heading
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