單項選擇題Compared to internal structural plating. The exterior hull plating on a vessel is usually（）.

A.stronger
B.thinner
C.more corrosion resistant
D.a lower grade steel


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1.單項選擇題Connentrated heavy loads are involved in loading a lash vessel. What does not require close attention due to such loads while working cargo?（）.

A.GM-available and required
B.Longitudinal stress numberal
C.Tons per inch immersion numeral
D.Draft

2.單項選擇題Concerning the use of a stabilogauge, what of the following cannot be found?（）.

A.Mean draft
B.Trim
C.displacement
D.Deadweight

3.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 to deck cargo
C.a crate in which a deck cargo is packaged
D.cardboard separation pieces placed between deck loads to prevent chafing

4.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

5.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