A.an isolated danger mark
B.a hydrographic data collection buoy
C.a mooring buoy
D.marking a restricted area
您可能感興趣的試卷
你可能感興趣的試題
A.submerged rock，not dangerous to navigation
B.sunken wreck，not dangerous to navigation
C.towed-under buoy
D.All of the above
A.underway
B.making way
C.dead in the water
D.a power driven vessel
A.dike
B.revetment
C.cutoff
D.crib
A.numbered
B.lettered
C.green
D.red
A.lighted with a white light
B.striped black and red
C.lighted with a red light
D.yellow
最新試題
A yellow buoy may exhibit a(n)（）.
A yellow buoy may mark a(n)（）.
A spherical buoy may be（）.
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
A structure，usually made of stone，or cement pilings，which extends from the bank at approximately right angles to the current is called a（）.
How is the intensity of a light expressed in the Light Lists?（）.
A special purpose buoy shall be（）.
Buoys which mark dredging areas are painted（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）
Fishing stake，the position of which frequently（），exist in the area covered by this chart.