A.Skip zone
B.Blackout zone
C.Diffraction zone
D.Shadow zone
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A.provide safety-related information automatically to shore stations，other vessels and aircraft
B.receive safety-related information automatically from similarly equipped vessels
C.exchange safety-related information with shore-based facilities
D.All of the above
A.He space component
B.Control component
C.User component
D.Alarming component
A.Deviating from a planned route
B.Approach to waypoints and other critical points
C.Light house detecting
D.Larger scale chart available
A.detective Availability
B.local environmental conditions
C.autonomous mode versus differential correction mode versus RTCM mode
D.the averaging of recorded locations
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
最新試題
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
Loran-C is which type of system（）.
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
The information received by AIS will be displayed on（）.
When your vessel is proceeding to the area of traffic density，（）is used to determine the exact ranges of other ships or objects in the vicinity.
Which of the following statements is TRUE regarding crane operations（）.
（）is a digitized“picture”of a chart.
Which statement concerning GPS is TRUE（）.