A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed
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A.Horizontal movement of the water toward the land after high tide
B.Horizontal movement of the water toward the land after low tide
C.Horizontal movement of the water away from the land following high tide
D.Horizontal movement of the water away from the land following low tide
A.are the same as their Light List number
B.are marked in 6 inch figures with retroreflective material
C.increase with the even numbers to starboard
D.decrease with the odd numbers to starboard
A.Separation of opposing streams of traffic by separation zones or lines
B.The separation of through traffic from local traffic by provision of inshore traffic zones
C.Division of traffic from several different direction into sectors
D.Control of routing traffic through shipping routes
A.a junction with the preferred channel to the left
B.a sharp turn in the channel to the right
C.the starboard side of the channel
D.a wreck to be left on the vessel's port side
A.The objects lie in a straight line
B.The vessel is inside of a triangle formed by the objects
C.The vessel is outside of a triangle formed by the objects
D.A circle will pass through your position and the three objects
A.Equator
B.Areas including both North and South latitudes
C.North and South Poles
D.A narrow band along the central meridian
A.Flashing red lights upstream and fixed red lights downstream
B.Yellow unlighted buoys
C.Signs and/or flashing red lights
D.Red daymarks upstream and green daymarks downstream
A.Set
B.Frequency
C.Period
D.Function
A.From every fix or running fix
B.From every estimated position
C.Every three minutes in pilotage waters
D.Only in pilotage waters
A.The buoy should be considered to always be in the charted location
B.If the light is flashing，the buoy should be considered to be in the charted location
C.The buoy may not be in the charted position
D.The buoy should be considered to be in the charted position if it has been freshly painted
最新試題
Depiction of TSS's on charts uses（）as the primary color.
In very high latitudes，the most practical chart projection is the（）.
Which of the following are data layer categories to be displayed on ECDIS（）．
When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.
When latitude and longitude are used，these shall be expressed in（）（and decimals of a minute if necessary），north or south of the Equator and east or west of Greenwich.
The recording fathometer produces a graphic record of the（）.
（） is a circular traffic lane used at junctions of several routes，within which traffic moves counterclockwise around a separation point or zone.
You should plot your dead reckoning position（）.
On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.
What area of the earth cannot be shown on a standard Mercator chart（）.