A.black
B.yellow
C.green
D.red
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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
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
最新試題
An orange and white buoy marking a danger area will have what symbol on it?（）
A yellow buoy may exhibit a(n)（）.
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
Buoys which mark dredging areas are painted（）.
A white buoy with an orange rectangle on it displays（）.
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
A special purpose buoy shall be（）.
A white buoy with a blue band is（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
An orange and white buoy with a rectangle on it displays（）.