A.alongside the wharf
B.grounded in the channel
C.at buoys
D.at anchor
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A.prevent the towboat from sliding when the rudder is moved
B.prevent the barges from spreading out when backing down
C.hold the towboat securely to the barges
D.prevent the sidewise movement of the face barges
A.Icebergs may travel in a direction many degrees different from the sea ice
B.Both icebergs and sea ice will move in approximately the same direction and at the same speed
C.Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the berg
D.Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
A.Your speed will significantly increase
B.Your draft will significantly decrease
C.Your bow will sheer towards the other vessel
D.Your bow will sheer away from the other vessel
A.is usually below the center of gravity and has little effecton stability
B.will cause water on deck to pocket and increase stability
C.may decrease stability by increasing free surface effect due to water on deck
D.increases the effective freeboard and increases thewind-heel affect
A.displacement
B.free surface
C.draft
D.KG
最新試題
A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the （）limit of the channel or fairway which lies on her（）side as is safe and practicable.
If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.
For operations in pack ice，a vessel should（）.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
A vessel the passage of which is not to be impeded（）to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.
In selecting a tug for moving a vessel，consideration should be given to its（）.
Topside icing decreases vessel stability becauseit increases（）.
A vessel shall slacken her speed，stop，or reverse her engines，if necessary，to（）.
If a tow sinks in shallow water，you should（）.
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.