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Lines on a chart which connect points of equal magnetic variation are called ______.
A.magnetic latitudes
B.magnetic declinations
C.dip
D.isogonic lines
参考答案
更多 “ Lines on a chart which connect points of equal magnetic variation are called ______.A.magnetic latitudesB.magnetic declinationsC.dipD.isogonic lines ” 相关考题
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Assignable cause or special variation is:A . is indicated when a point falls outside the control limits.B . is indicated when a point falls outside the specification limits.C . is indicated when a run of seven or more points fall above the center line of a standard control chart.D . is indicated when a run of seven or more points fall below the center line of a standard control chart.E . A, C, and D.
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134 Assignable cause or special variation is:A. is indicated when a point falls outside the control limits.B. is indicated when a point falls outside the specification limits.C. is indicated when a run of seven or more points fall above the center line of a standard control chart.D. is indicated when a run of seven or more points fall below the center line of a standard control chart.E. A, C, and D
考题
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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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
考题
The compass rose on a nautical chart indicates both variation and ______.A.deviationB.annual rate of variation changeC.precessionD.compass error
考题
Isogonic lines are lines on a chart indicating ______.A.points of equal variationB.points of zero variationC.the magnetic latitudeD.magnetic dip
考题
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
考题
Your vessel is proceeding down a channel，and you see a pair of range lights that are in line dead ahead．The chart indicates that the direction of this pair of lights is 229°T，and variation is 6°W．If the heading of your vessel at the time of the sighting is 232°per standard magnetic compass，what is the correct deviation ________．A.3°EB.9°EC.3°WD.9°W
考题
An isotherm is ______.A.a line on a weather map connecting equal points of both temperature and pressureB.an instrument that measures the climatological effects of temperatureC.a line connecting points of equal barometric pressure on a weather mapD.a line connecting points of equal temperature on a weather map
考题
Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading
考题
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
考题
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.There will be no compass error
考题
单选题Deviation is caused by（）.A
changes in the earth's magnetic fieldB
nearby magnetic land masses or mineral depositsC
magnetic influence inherent to that particular vesselD
the magnetic lines of force not coinciding with the lines of longitude
考题
单选题Isogonic lines are lines on a chart indicating （）.A
points of equal variationB
points of zero variationC
the magnetic latitudeD
magnetic dip
考题
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
考题
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
There will be no compass error
考题
单选题Lines on a chart which connect points of equal magnetic variation are called （）.A
magnetic latitudesB
magnetic declinationsC
dipD
isogonic lines
考题
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
考题
单选题Which information is found in the chart title（）.A
A rhumb line appears as a straight lineB
Distance is measured at the midlatitude of the track lineC
Meridians appear as curved lines converging toward the nearer poleD
Parallels，except the equator，appear as curved lines
考题
单选题Which information does the outer ring of a compass rose on a nautical chart provide（）.A
variationB
true directionsC
magnetic directionsD
annual rate of variation change
考题
单选题The compass rose on a nautical chart indicates both variation and （）.A
deviationB
annual rate of variation changeC
precessionD
compass error
考题
单选题Variation is the angular measurement between（）.A
compass north and magnetic northB
compass north and true northC
magnetic meridian and the geographic meridianD
your vessel's heading and the magnetic meridian
考题
单选题What is the basic principle of the magnetic compass（）.A
Magnetic materials of the same polarity repel each other and those of opposite polarity attractB
The Earth's magnetic lines of force are parallel to the surface of the EarthC
Magnetic meridians connect points of equal magnetic variationD
The compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth
考题
单选题The line which connects the points of zero magnetic dip is（）.A
An agonic lineB
The magnetic equatorC
A magnetic meridianD
All of the above
考题
单选题A line on a weather chart connecting places which have the same barometric pressure is called an（）.A
isothermB
isallobarC
isobarD
isotope
考题
单选题The points on the earth’s surface where the magnetic dip is 90° are（）.A
Along the magnetic equatorB
Connected by the isoclinal lineC
The isoporsD
The magnetic poles
考题
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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