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
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The proximity of pack ice may be indicated by().
Topside icing that blocks freeing ports and scuppers().
A vessel shall be deemed to be overtaking when she can see at night().
A tug’s horsepower available at the shaft is().
A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the().
Topside icing decreases vessel stability because it is usually off-center and().
On a twin-screw,twin-rudder vessel,the most effective way to turn in your own water,with no way on,is to put().
Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel? ()
Ice blink is().
A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?().