A.Red buoy with a horizontal yellow band
B.Red and white vertically-striped buoy with a vertical yellow stripe
C.Red and white vertically-striped buoy with a red spherical topmark
D.Green buoy with a yellow square
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A.Dead-reckoning position
B.Estimated position
C.Fix
D.Running fix
A.encountered
B.met
C.contacted
D.seen
A.the differing light colors
B.one system having odd numbers while the other system has even numbers
C.one system using horizontal bands while the other system uses vertical stripes
D.the difference in the periods of the light
A.the light-house
B.the anchorage
C.the pilot station
D.the light-buoy
A.deep laded vessels
B.deeply load vessels
C.deep loading vessels
D.deeply loaded vessels
最新試題
The four standard light colors used for lighted aids to navigation are red，green，white，and （）.
You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.
（） is a circular traffic lane used at junctions of several routes，within which traffic moves counterclockwise around a separation point or zone.
What describes a flood current（）.
Which of the following are data layer categories to be displayed on ECDIS（）．
You should plot your dead reckoning position（）.
In very high latitudes，the most practical chart projection is the（）.
Which statement concerning current is TRUE（）.
When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.
Depiction of TSS's on charts uses（）as the primary color.