A.switching
B.alternating
C.oscillating
D.fluctuating
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A.sharp turn in the channel
B.narrowing in the channel at that point
C.junction in the channel
D.obstruction that must be left to port
A.should be passed close aboard on either side
B.indicates that special caution is required
C.is used at a channel bifurcation or junction
D.is painted with red and white vertical stripes
A.easterly courses in high latitudes
B.southerly courses in high latitudes
C.westerly courses in low latitudes
D.easterly courses in low latitudes that cross the equator
A.plane tangent at one point
B.cylinder tangent at the equator
C.cone tangent at one parallel
D.infinite series of cones tangent at selected parallels
A.True position
B.True meridian
C.True course
D.True bearing
A.Longitude
B.Latitude
C.Height
D.Bearing
最新试题
From your position you observe a rotating white and green light to the north. This light is most likely（）.
A mid-channel buoy，if lighted，will show a（）.
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
Buoys which mark isolated dangers are painted with alternating（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
A spherical buoy may be（）.
A yellow buoy may mark a(n)（）.
Branford reef is（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）