should be left to port when heading out to sea
may be left close aboard on either side
is on the north side of a point of interest
is marking the preferred channel
第1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2题：
______ gives a description of the combined Cardinal and Lateral Buoyage system including textual and diagrammatic explanations of the five types of marks；lateral；cardinal，isolated danger；safe water and special marks．
A.Ocean Passages for the World（NP136）
B.Symbols and Abbreviations used on Admiralty Charts，Chart 5011
C.IALA Maritime Buoyage System（NP735）
D.The Mariners Handbook（NP100）
第3题：
A、sheeps/ leafs
B、sheeps/ leafes
C、sheep/ leaves
D、sheep/ leafs
第4题：
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5题：
You are sailing south on the Intracoastal Waterway（ICW）when you sight a green can buoy with a yellow square painted on it．Which of the following is TRUE ________．
A.You should pass the buoy close aboard on either side
B.The buoy marks the end of the ICW in that area
C.You should leave the buoy to port
D.The yellow square is retroreflective material used to assist in sighting the buoy at night
第6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7题：
______ is not a type of IALA maritime buoyage system．
A.special marks
B.isolated danger marks
C.cardinal marks
D.fore and aft marks
第8题：
What information is found in the chart title?
A.Date of the first edition
B.Date of the edition and，if applicable，the revision
C.Information on the sounding datum
D.Information on which IALA buoyage system applies
第9题：
A buoy having red and green horizontal bands would have a light characteristic of ______.
A.group occulting
B.composite group flashing
C.Morse letter A
D.quick flashing
第10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