A.A safe-water buoy will display red and white vertical stripes of reflective material
B.All reflective material is white because it is the most visible at night
C.A special-purpose mark will display either red or green reflective material to agree with its shape
D.A preferred-channel buoy displays either red or green reflective material to agree with the top band of color
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A.a hard sand shoal marked with a light
B.completely submerged at all stages of the tide
C.surrounded by rocks awash at low water spring tides
D.a small，low，sandy islet surrounded by shoal water
A.directions
B.distances
C.locations
D.All of the above
A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Rectangle
A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
最新試題
A mid-channel buoy，if lighted，will show a（）.
A yellow buoy may exhibit a(n)（）.
An orange and white buoy with a rectangle on it displays（）.
Branford reef is（）.
A special purpose buoy shall be（）.
A white buoy with an open-faced orange diamond on it indicates（）.
A spherical buoy may be（）.
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）