單項選擇題

Flanking rudders effect a vessel’s heading because of the（）.

A.Effect of the propeller flow on the rudders
B.Water flow due to the vessel's movement through the water
C.Tunnel affect of the water flow past opposing rudders
D.Discharge current being channeled to impinge on the vessel's deadwood

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單項選擇題

Cribbing is（）.

A.wooden blocks or dunnage placed between a deck load and the deck
B.the chains and shackles used to secure a deck cargo
C.a crate in which a deck cargo is packaged
D.cardboard separation pieces placed between deck loads to prevent chafing

單項選擇題

At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.

A.one
B.two
C.three
D.four

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Flanking rudders effect a vessel’s heading because of the（）.

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Cribbing is（）.

At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.

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