A.SafetyNET
B.NAVTEX
C.NAVAREA
D.VHF R/T
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A.conduction fog
B.radiation fog
C.frontal fog
D.advection fog
A.active weather disturbances such as hurricanes or tropical storms
B.the latest navigational warnings
C.scheduled vessel arrivals and departures for a 24-hour period
D.water levels at river ports where run-off affects tidal heights
A.Overhead power lines
B.Louisiana-Mississippi ferry crossings
C.Two railroad trestles
D.Two submerged oil pipelines
A.fish trap area
B.pipeline
C.demarcation line
D.cable area
A.cloud movement
B.vessel heading
C.waves
D.swells
最新試題
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.
The height of a tide can be increased by（）.
Steam smoke will occur when（）.
Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．
Steam smoke will occur when（）.
Which is the correct procedure for anchoring a small to medium size vessel in deep water （）.
What is the most important source of information to be used in correcting charts and keeping them up to date（）.