單項選擇題Cross curves of stability show which of the following?（）.

A.The righting arms at various angles of inclination and displacement
B.The metacentric height at large angle of heel
C.The height of the center of buoyancy at various angles
D.The metacentric radius at various angles


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1.單項選擇題Damage stability is the stability（）.

A.which exists when the wind speed is less than 50 knots
B.before collision
C.after flooding
D.at the maximum load

2.單項選擇題Damage to cargo caused by dust is known as（）.

A.contamination
B.oxidation
C.tainting
D.vaporization

3.單項選擇題Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as（）.

A.contamination
B.oxidation
C.tainting
D.vaporization

4.單項選擇題Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this, you should（）.

A.install shoring so the the shoring supports the damaged bulkhead without pushing on them
B.install shoring so that it pushes on the damaged bulkhead while supporting it
C.use jacks or chain falls to remove the set before installing shores
D.place sandbags by the bulkhead without installing shores

5.單項選擇題Deadweight, which is the cargo carrying capacity of a vessel in tons, is determined by（）.

A.loaded displacement minus light displacement
B.gross tonnage minus net tonnage
C.loaded displacement minus net tonnage
D.light displacement minus the weight of the vessel