A.Mercator projection
B.polyconic projection
C.orthographic projection
D.gnomonic projection
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A.Summary of Corrections
B.Local Notice to Mariners
C.Daily Memorandum
D.Chart Correction Card
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 period of time
D.average height of all low waters at a place
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
A.Chart No.1
B.Catalog of Charts
C.IMO Practical Navigator
D.IMO Light List
A.points of equal variation
B.points of zero variation
C.the magnetic latitude
D.magnetic dip
最新試題
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
What information is NOT found in the chart title? （）
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
The arrangement of charts in the catalogue is（）.
Every chart is liable to be incomplete（）.
The soundings on the chart are based on the depth of water available at （）.
The revision date of a chart is printed on which area of the chart? （）
What defines a great circle? （）
Particular care is needed when navigating in the vicinity of（）as very few of these features have been fully surveyed to modern standards to determine their correct position，full extent，or the least depth over them.