A.Luminous range
B.Geographic range
C.Nominal range
D.Meteorological range
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A.from a submarine on the surface
B.the light at Southeast Point
C.at an airport
D.on a coastal patrol vessel
A.removed
B.altered
C.corrected
D.converted
A.always be nearer to the equator
B.always be nearer to the elevated pole
C.be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere
D.be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
A.Flashing
B.Quick flashing
C.Composite group flashing
D.Equal interval (isophase)
A.red and black bands
B.green and black bands
C.red and white stripes
D.green and white bands
最新試題
A spherical buoy may be（）.
A preferred-channel buoy may be（）.
A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is（）.
A plane that cuts the Earth’s surface and passes through the poles will always form（）.
Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.
A special purpose buoy shall be（）.
A parallel of latitude other than the equator is a（）.
A relative bearing is always measured from（）.
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A structure，usually made of stone，or cement pilings，which extends from the bank at approximately right angles to the current is called a（）.