A.one short blast
B.one prolonged blast
C.not less than five short blasts
D.not less than five prolonged blasts
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A.clean report
B.serious deficiencies
C.clear ground
D.detention report
A.increases
B.remains the same
C.decreases
D.is unimportant and may be neglected
A.By backing down the track and cutting out ice on either bow
B.By approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's course
C.By overtaking the beset ship，running ahead and then backing down the track to the beset vessel
D.By approaching the vessel from astern and towing the beset vessel stern first
A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel
A.adapted to
B.used by
C.liable to
D.adaptation to
最新試題
You are approaching a vertical lift bridge.You know the span is fully open when（）.
When approaching Block Island Sound from Long Island Sound，you will enter waters governed by the International Rules of the Road when you（）.
A sailing vessel shall not impede the safe passage of a（）．
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（）.
The term of Landfall means（）.
The Light List shows a lighted aid to navigation on the left bank. This means that the light can be seen on the starboard side of a vessel（）.
（）is not a type of IALA maritime buoyage system.
Which vessel would display a cone，apex downward（）.
When towing in an open seaway，it is important to use a towing line（）.
Which effect does speed through the water have on a vessel which is underway in shallow water （）.