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單項選擇題

0n a vessel,multipiying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)（）.

A.transverse moment
B.vertical moment
C.righting moment
D.inclining moment

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單項選擇題

0n cargo booms,preventers are（）.

A.auxiliary guys
B.extra fair leads
C.steel bands
D.stops

單項選擇題

0ne of the limitations of foam as an extinguishing agent is that foam（）.

A.cannot be made with salt water
B.is heavierthan oil and sinks below its surface
C.is corrosive and to fire fighters
D.conducts electricity

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