A buoy marking a wreck will show a(an) ______.
A.white light FL (2) and a topmark of 2 black spheres
B.occulting green light and may be lettered
C.yellow light and will be numbered
D.continuous quick white light and may be numbered
第1题：
This is________where we shall anchor.
A.the light-house
B.the anchorage
C.the pilot station
D.the light-buoy
第2题：
A green buoy has a yellow triangle on it. This is a(n) ______.
A.information or regulatory buoy that has lateral significance
B.buoy that is off-station and is marked to warn mariners of its wrong position
C.dual purpose marking used where the ICW and other waterways coincide
D.buoy that was set in error and will be replaced with a red nun buoy
第3题：
Preferred channel buoys indicate the preferred channel to transit by ______.
A.odd or even numbers
B.the color of their top band
C.the location of the buoy in the channel junction
D.the buoy’s light rhythms
第4题：
white light whose characteristic is Morse (A)
group-occulting white light
composite group-flashing (2 + 1) white light
composite group-flashing (2 + 1) red or green light
第5题：
A green pillar lightbuoy，Fl(2) 5s，is to be substituted for the red conical lightbuoy Close S.W．of the stranded wreck．The above sentence mainly refers to______．
A.a red buoy is to be replaced by a green buoy
B.a green buoy is to be replaced by a red buoy
C.either a red buoy or a green buoy is to be replaced
D.neither a red buy nor a green buoy is to be replaced
第6题：
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?
A.Light List
B.Notice to Mariners
C.On the chart
D.Coast Pilot
第7题：
Under the IALA-A Buoyage System，a green spar buoy with a triangular topmark would indicate that the buoy ______.
A.should be left to port when heading out to sea
B.may be left close aboard on either side
C.is on the north side of a point of interest
D.is marking the preferred channel
第8题：
A SEAMARK，I.E.A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G.A WRECK is ______.
A.Entrance buoy
B.New buoy
C.Port buoy
D.Cardinal buoy
第9题：
a junction with the preferred channel to the left
a sharp turn in the channel to the right
the starboard side of the channel
a wreck to be left on the vessel's port side
第10题：
the light-house
the anchorage
the pilot station
the light-buoy