A.speed begins to drop
B.stops
C.receives ice damage
D.becomes icebound
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A.displaying code letter Y (Yankee)
B.sounding five short blasts on his whistle
C.displaying code numeral 5
D.sounding one prolonged blast on his whistle
A.remains fully obliged
B.has no obligation
C.is not necessarily
D.is exempted
A.diving operations
B.dredging
C.fishing
D.mineclearance operations
A.avoid collision
B.allow more time to assess the situation
C.be stopped in an appropriate distance
D.All of the above
A.only the sternlight of the vessel
B.a sidelight and one masthead light of the vessel
C.only a sidelight of the vessel
D.any lights except the masthead lights of the vessel
最新試題
As the weather was worsening and wind force rising to 8，my vessel（）were yawing within forty degrees of the compass.
A vessel proceeding along the bank of a river or channel has the tendency to（）.
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.
Ice blink is（）.
A tug’s horsepower available at the shaft is（）.
Topside icing decreases vessel stability because it is usually off-center and（）.
A vessel showing a rigid replica of the International Code flag A is engaged in（）.
On a single-screw vessel the stern frame（）.
For operations in pack ice，a vessel should（）.
A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the（）.